Changeset 205 for draft-ietf-httpbis


Ignore:
Timestamp:
06/02/08 19:15:29 (14 years ago)
Author:
julian.reschke@…
Message:

Add sections that for now normatively reference the ABNF syntax and basic rules from Part1, also start work on referencing ABNF rules adopted from other parts (ongoing); relates to #36.

Location:
draft-ietf-httpbis/latest
Files:
14 edited

Legend:

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  • draft-ietf-httpbis/latest/outlineALL.html

    r193 r205  
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    44   <head>
     5      <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
    56      <title>HTTP/1.1 Drafts: Combined Table of Contents</title>
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    3937   <body>
    40 <div id="page">
    41    <div id="banner">
    42       <div id="mainnav" class="nav">
    43          <ul><li class="first"><a accesskey="1" href="http://www3.tools.ietf.org/wg/httpbis/trac/wiki">Wiki</a></li>
    44              <li><a accesskey="2" href="http://www3.tools.ietf.org/wg/httpbis/trac/timeline">Timeline</a></li>
    45              <li><a href="http://www3.tools.ietf.org/wg/httpbis/trac/browser">Browse Source</a></li>
    46              <li><a href="http://www3.tools.ietf.org/wg/httpbis/trac/report">View Tickets</a></li>
    47              <li class="active"><a href="outlineALL.html">Outline Parts</a></li>
    48              <li><a href="outline2616.html">Outline 2616</a></li>
    49              <li class="last"><a href="http://lists.w3.org/Archives/Public/ietf-http-wg/">Mail Archive</a></li>
    50          </ul>
     38      <div id="page">
     39         <div id="banner">
     40            <div id="mainnav" class="nav">
     41               <ul>
     42                  <li class="first"><a accesskey="1" href="http://www3.tools.ietf.org/wg/httpbis/trac/wiki">Wiki</a></li>
     43                  <li><a accesskey="2" href="http://www3.tools.ietf.org/wg/httpbis/trac/timeline">Timeline</a></li>
     44                  <li><a href="http://www3.tools.ietf.org/wg/httpbis/trac/browser">Browse Source</a></li>
     45                  <li><a href="http://www3.tools.ietf.org/wg/httpbis/trac/report">View Tickets</a></li>
     46                  <li class="active"><a href="outlineALL.html">Outline Parts</a></li>
     47                  <li><a href="outline2616.html">Outline 2616</a></li>
     48                  <li class="last"><a href="http://lists.w3.org/Archives/Public/ietf-http-wg/">Mail Archive</a></li>
     49               </ul>
     50            </div>
     51         </div>
     52         <div id="content">
     53            <h1>HTTP/1.1 Drafts: Combined Table of Contents</h1>
     54            <h2><a href="p1-messaging.html">HTTP/1.1, part 1: URIs, Connections, and Message Parsing</a></h2>
     55            <ul class="toc">
     56               <li class="tocline0">1.&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#introduction">Introduction</a><ul class="toc">
     57                     <li class="tocline1">1.1&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#intro.purpose">Purpose</a></li>
     58                     <li class="tocline1">1.2&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#intro.requirements">Requirements</a></li>
     59                     <li class="tocline1">1.3&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#intro.terminology">Terminology</a></li>
     60                     <li class="tocline1">1.4&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#intro.overall.operation">Overall Operation</a></li>
     61                  </ul>
     62               </li>
     63               <li class="tocline0">2.&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#notation">Notational Conventions and Generic Grammar</a><ul class="toc">
     64                     <li class="tocline1">2.1&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#notation.abnf">Augmented BNF</a></li>
     65                     <li class="tocline1">2.2&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#basic.rules">Basic Rules</a></li>
     66                  </ul>
     67               </li>
     68               <li class="tocline0">3.&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#protocol.parameters">Protocol Parameters</a><ul class="toc">
     69                     <li class="tocline1">3.1&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#http.version">HTTP Version</a></li>
     70                     <li class="tocline1">3.2&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#uri">Uniform Resource Identifiers</a><ul class="toc">
     71                           <li class="tocline1">3.2.1&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#general.syntax">General Syntax</a></li>
     72                           <li class="tocline1">3.2.2&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#http.url">http URL</a></li>
     73                           <li class="tocline1">3.2.3&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#uri.comparison">URI Comparison</a></li>
     74                        </ul>
     75                     </li>
     76                     <li class="tocline1">3.3&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#date.time.formats">Date/Time Formats</a><ul class="toc">
     77                           <li class="tocline1">3.3.1&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#full.date">Full Date</a></li>
     78                        </ul>
     79                     </li>
     80                     <li class="tocline1">3.4&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#transfer.codings">Transfer Codings</a><ul class="toc">
     81                           <li class="tocline1">3.4.1&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#chunked.transfer.encoding">Chunked Transfer Coding</a></li>
     82                        </ul>
     83                     </li>
     84                     <li class="tocline1">3.5&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#product.tokens">Product Tokens</a></li>
     85                  </ul>
     86               </li>
     87               <li class="tocline0">4.&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#http.message">HTTP Message</a><ul class="toc">
     88                     <li class="tocline1">4.1&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#message.types">Message Types</a></li>
     89                     <li class="tocline1">4.2&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#message.headers">Message Headers</a></li>
     90                     <li class="tocline1">4.3&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#message.body">Message Body</a></li>
     91                     <li class="tocline1">4.4&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#message.length">Message Length</a></li>
     92                     <li class="tocline1">4.5&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#general.header.fields">General Header Fields</a></li>
     93                  </ul>
     94               </li>
     95               <li class="tocline0">5.&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#request">Request</a><ul class="toc">
     96                     <li class="tocline1">5.1&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#request-line">Request-Line</a><ul class="toc">
     97                           <li class="tocline1">5.1.1&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#method">Method</a></li>
     98                           <li class="tocline1">5.1.2&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#request-uri">Request-URI</a></li>
     99                        </ul>
     100                     </li>
     101                     <li class="tocline1">5.2&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#the.resource.identified.by.a.request">The Resource Identified by a Request</a></li>
     102                  </ul>
     103               </li>
     104               <li class="tocline0">6.&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#response">Response</a><ul class="toc">
     105                     <li class="tocline1">6.1&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#status-line">Status-Line</a><ul class="toc">
     106                           <li class="tocline1">6.1.1&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#status.code.and.reason.phrase">Status Code and Reason Phrase</a></li>
     107                        </ul>
     108                     </li>
     109                  </ul>
     110               </li>
     111               <li class="tocline0">7.&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#connections">Connections</a><ul class="toc">
     112                     <li class="tocline1">7.1&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#persistent.connections">Persistent Connections</a><ul class="toc">
     113                           <li class="tocline1">7.1.1&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#persistent.purpose">Purpose</a></li>
     114                           <li class="tocline1">7.1.2&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#persistent.overall">Overall Operation</a><ul class="toc">
     115                                 <li class="tocline1">7.1.2.1&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#persistent.negotiation">Negotiation</a></li>
     116                                 <li class="tocline1">7.1.2.2&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#pipelining">Pipelining</a></li>
     117                              </ul>
     118                           </li>
     119                           <li class="tocline1">7.1.3&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#persistent.proxy">Proxy Servers</a></li>
     120                           <li class="tocline1">7.1.4&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#persistent.practical">Practical Considerations</a></li>
     121                        </ul>
     122                     </li>
     123                     <li class="tocline1">7.2&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#message.transmission.requirements">Message Transmission Requirements</a><ul class="toc">
     124                           <li class="tocline1">7.2.1&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#persistent.flow">Persistent Connections and Flow Control</a></li>
     125                           <li class="tocline1">7.2.2&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#persistent.monitor">Monitoring Connections for Error Status Messages</a></li>
     126                           <li class="tocline1">7.2.3&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#use.of.the.100.status">Use of the 100 (Continue) Status</a></li>
     127                           <li class="tocline1">7.2.4&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#connection.premature">Client Behavior if Server Prematurely Closes Connection</a></li>
     128                        </ul>
     129                     </li>
     130                  </ul>
     131               </li>
     132               <li class="tocline0">8.&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#header.fields">Header Field Definitions</a><ul class="toc">
     133                     <li class="tocline1">8.1&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#header.connection">Connection</a></li>
     134                     <li class="tocline1">8.2&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#header.content-length">Content-Length</a></li>
     135                     <li class="tocline1">8.3&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#header.date">Date</a><ul class="toc">
     136                           <li class="tocline1">8.3.1&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#clockless.origin.server.operation">Clockless Origin Server Operation</a></li>
     137                        </ul>
     138                     </li>
     139                     <li class="tocline1">8.4&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#header.host">Host</a></li>
     140                     <li class="tocline1">8.5&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#header.te">TE</a></li>
     141                     <li class="tocline1">8.6&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#header.trailer">Trailer</a></li>
     142                     <li class="tocline1">8.7&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#header.transfer-encoding">Transfer-Encoding</a></li>
     143                     <li class="tocline1">8.8&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#header.upgrade">Upgrade</a></li>
     144                     <li class="tocline1">8.9&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#header.via">Via</a></li>
     145                  </ul>
     146               </li>
     147               <li class="tocline0">9.&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#IANA.considerations">IANA Considerations</a></li>
     148               <li class="tocline0">10.&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#security.considerations">Security Considerations</a><ul class="toc">
     149                     <li class="tocline1">10.1&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#personal.information">Personal Information</a></li>
     150                     <li class="tocline1">10.2&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#abuse.of.server.log.information">Abuse of Server Log Information</a></li>
     151                     <li class="tocline1">10.3&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#attack.pathname">Attacks Based On File and Path Names</a></li>
     152                     <li class="tocline1">10.4&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#dns.spoofing">DNS Spoofing</a></li>
     153                     <li class="tocline1">10.5&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#attack.proxies">Proxies and Caching</a></li>
     154                     <li class="tocline1">10.6&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#attack.DoS">Denial of Service Attacks on Proxies</a></li>
     155                  </ul>
     156               </li>
     157               <li class="tocline0">11.&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#ack">Acknowledgments</a></li>
     158               <li class="tocline0">12.&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#rfc.references">References</a><ul class="toc">
     159                     <li class="tocline1">12.1&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#rfc.references.1">Normative References</a></li>
     160                     <li class="tocline1">12.2&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#rfc.references.2">Informative References</a></li>
     161                  </ul>
     162               </li>
     163               <li class="tocline0"><a href="p1-messaging.html#rfc.authors">Authors' Addresses</a></li>
     164               <li class="tocline0">A.&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#internet.media.type.http">Internet Media Types</a><ul class="toc">
     165                     <li class="tocline1">A.1&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#internet.media.type.message.http">Internet Media Type message/http</a></li>
     166                     <li class="tocline1">A.2&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#internet.media.type.application.http">Internet Media Type application/http</a></li>
     167                  </ul>
     168               </li>
     169               <li class="tocline0">B.&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#tolerant.applications">Tolerant Applications</a></li>
     170               <li class="tocline0">C.&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#conversion.of.date.formats">Conversion of Date Formats</a></li>
     171               <li class="tocline0">D.&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#compatibility">Compatibility with Previous Versions</a><ul class="toc">
     172                     <li class="tocline1">D.1&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#changes.from.1.0">Changes from HTTP/1.0</a><ul class="toc">
     173                           <li class="tocline1">D.1.1&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#changes.to.simplify.multi-homed.web.servers.and.conserve.ip.addresses">Changes to Simplify Multi-homed Web Servers and Conserve IP Addresses</a></li>
     174                        </ul>
     175                     </li>
     176                     <li class="tocline1">D.2&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#compatibility.with.http.1.0.persistent.connections">Compatibility with HTTP/1.0 Persistent Connections</a></li>
     177                     <li class="tocline1">D.3&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#changes.from.rfc.2068">Changes from RFC 2068</a></li>
     178                     <li class="tocline1">D.4&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#changes.from.rfc.2616">Changes from RFC 2616</a></li>
     179                  </ul>
     180               </li>
     181               <li class="tocline0">E.&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#rfc.section.E">Change Log (to be removed by RFC Editor before publication)</a><ul class="toc">
     182                     <li class="tocline1">E.1&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#rfc.section.E.1">Since RFC2616</a></li>
     183                     <li class="tocline1">E.2&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#rfc.section.E.2">Since draft-ietf-httpbis-p1-messaging-00</a></li>
     184                     <li class="tocline1">E.3&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#rfc.section.E.3">Since draft-ietf-httpbis-p1-messaging-01</a></li>
     185                  </ul>
     186               </li>
     187               <li class="tocline0"><a href="p1-messaging.html#rfc.ipr">Intellectual Property and Copyright Statements</a></li>
     188               <li class="tocline0"><a href="p1-messaging.html#rfc.index">Index</a></li>
     189            </ul>
     190            <h2><a href="p2-semantics.html">HTTP/1.1, part 2: Message Semantics</a></h2>
     191            <ul class="toc">
     192               <li class="tocline0">1.&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#introduction">Introduction</a><ul class="toc">
     193                     <li class="tocline1">1.1&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#intro.requirements">Requirements</a></li>
     194                  </ul>
     195               </li>
     196               <li class="tocline0">2.&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#notation">Notational Conventions and Generic Grammar</a></li>
     197               <li class="tocline0">3.&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#method">Method</a></li>
     198               <li class="tocline0">4.&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#request.header.fields">Request Header Fields</a></li>
     199               <li class="tocline0">5.&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#status.code.and.reason.phrase">Status Code and Reason Phrase</a></li>
     200               <li class="tocline0">6.&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#response.header.fields">Response Header Fields</a></li>
     201               <li class="tocline0">7.&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#entity">Entity</a></li>
     202               <li class="tocline0">8.&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#method.definitions">Method Definitions</a><ul class="toc">
     203                     <li class="tocline1">8.1&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#safe.and.idempotent">Safe and Idempotent Methods</a><ul class="toc">
     204                           <li class="tocline1">8.1.1&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#safe.methods">Safe Methods</a></li>
     205                           <li class="tocline1">8.1.2&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#idempotent.methods">Idempotent Methods</a></li>
     206                        </ul>
     207                     </li>
     208                     <li class="tocline1">8.2&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#OPTIONS">OPTIONS</a></li>
     209                     <li class="tocline1">8.3&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#GET">GET</a></li>
     210                     <li class="tocline1">8.4&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#HEAD">HEAD</a></li>
     211                     <li class="tocline1">8.5&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#POST">POST</a></li>
     212                     <li class="tocline1">8.6&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#PUT">PUT</a></li>
     213                     <li class="tocline1">8.7&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#DELETE">DELETE</a></li>
     214                     <li class="tocline1">8.8&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#TRACE">TRACE</a></li>
     215                     <li class="tocline1">8.9&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#CONNECT">CONNECT</a></li>
     216                  </ul>
     217               </li>
     218               <li class="tocline0">9.&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#status.codes">Status Code Definitions</a><ul class="toc">
     219                     <li class="tocline1">9.1&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#status.1xx">Informational 1xx</a><ul class="toc">
     220                           <li class="tocline1">9.1.1&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#status.100">100 Continue</a></li>
     221                           <li class="tocline1">9.1.2&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#status.101">101 Switching Protocols</a></li>
     222                        </ul>
     223                     </li>
     224                     <li class="tocline1">9.2&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#status.2xx">Successful 2xx</a><ul class="toc">
     225                           <li class="tocline1">9.2.1&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#status.200">200 OK</a></li>
     226                           <li class="tocline1">9.2.2&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#status.201">201 Created</a></li>
     227                           <li class="tocline1">9.2.3&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#status.202">202 Accepted</a></li>
     228                           <li class="tocline1">9.2.4&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#status.203">203 Non-Authoritative Information</a></li>
     229                           <li class="tocline1">9.2.5&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#status.204">204 No Content</a></li>
     230                           <li class="tocline1">9.2.6&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#status.205">205 Reset Content</a></li>
     231                           <li class="tocline1">9.2.7&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#status.206">206 Partial Content</a></li>
     232                        </ul>
     233                     </li>
     234                     <li class="tocline1">9.3&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#status.3xx">Redirection 3xx</a><ul class="toc">
     235                           <li class="tocline1">9.3.1&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#status.300">300 Multiple Choices</a></li>
     236                           <li class="tocline1">9.3.2&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#status.301">301 Moved Permanently</a></li>
     237                           <li class="tocline1">9.3.3&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#status.302">302 Found</a></li>
     238                           <li class="tocline1">9.3.4&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#status.303">303 See Other</a></li>
     239                           <li class="tocline1">9.3.5&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#status.304">304 Not Modified</a></li>
     240                           <li class="tocline1">9.3.6&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#status.305">305 Use Proxy</a></li>
     241                           <li class="tocline1">9.3.7&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#status.306">306 (Unused)</a></li>
     242                           <li class="tocline1">9.3.8&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#status.307">307 Temporary Redirect</a></li>
     243                        </ul>
     244                     </li>
     245                     <li class="tocline1">9.4&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#status.4xx">Client Error 4xx</a><ul class="toc">
     246                           <li class="tocline1">9.4.1&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#status.400">400 Bad Request</a></li>
     247                           <li class="tocline1">9.4.2&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#status.401">401 Unauthorized</a></li>
     248                           <li class="tocline1">9.4.3&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#status.402">402 Payment Required</a></li>
     249                           <li class="tocline1">9.4.4&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#status.403">403 Forbidden</a></li>
     250                           <li class="tocline1">9.4.5&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#status.404">404 Not Found</a></li>
     251                           <li class="tocline1">9.4.6&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#status.405">405 Method Not Allowed</a></li>
     252                           <li class="tocline1">9.4.7&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#status.406">406 Not Acceptable</a></li>
     253                           <li class="tocline1">9.4.8&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#status.407">407 Proxy Authentication Required</a></li>
     254                           <li class="tocline1">9.4.9&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#status.408">408 Request Timeout</a></li>
     255                           <li class="tocline1">9.4.10&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#status.409">409 Conflict</a></li>
     256                           <li class="tocline1">9.4.11&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#status.410">410 Gone</a></li>
     257                           <li class="tocline1">9.4.12&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#status.411">411 Length Required</a></li>
     258                           <li class="tocline1">9.4.13&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#status.412">412 Precondition Failed</a></li>
     259                           <li class="tocline1">9.4.14&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#status.413">413 Request Entity Too Large</a></li>
     260                           <li class="tocline1">9.4.15&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#status.414">414 Request-URI Too Long</a></li>
     261                           <li class="tocline1">9.4.16&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#status.415">415 Unsupported Media Type</a></li>
     262                           <li class="tocline1">9.4.17&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#status.416">416 Requested Range Not Satisfiable</a></li>
     263                           <li class="tocline1">9.4.18&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#status.417">417 Expectation Failed</a></li>
     264                        </ul>
     265                     </li>
     266                     <li class="tocline1">9.5&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#status.5xx">Server Error 5xx</a><ul class="toc">
     267                           <li class="tocline1">9.5.1&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#status.500">500 Internal Server Error</a></li>
     268                           <li class="tocline1">9.5.2&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#status.501">501 Not Implemented</a></li>
     269                           <li class="tocline1">9.5.3&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#status.502">502 Bad Gateway</a></li>
     270                           <li class="tocline1">9.5.4&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#status.503">503 Service Unavailable</a></li>
     271                           <li class="tocline1">9.5.5&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#status.504">504 Gateway Timeout</a></li>
     272                           <li class="tocline1">9.5.6&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#status.505">505 HTTP Version Not Supported</a></li>
     273                        </ul>
     274                     </li>
     275                  </ul>
     276               </li>
     277               <li class="tocline0">10.&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#header.fields">Header Field Definitions</a><ul class="toc">
     278                     <li class="tocline1">10.1&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#header.allow">Allow</a></li>
     279                     <li class="tocline1">10.2&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#header.expect">Expect</a></li>
     280                     <li class="tocline1">10.3&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#header.from">From</a></li>
     281                     <li class="tocline1">10.4&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#header.location">Location</a></li>
     282                     <li class="tocline1">10.5&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#header.max-forwards">Max-Forwards</a></li>
     283                     <li class="tocline1">10.6&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#header.referer">Referer</a></li>
     284                     <li class="tocline1">10.7&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#header.retry-after">Retry-After</a></li>
     285                     <li class="tocline1">10.8&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#header.server">Server</a></li>
     286                     <li class="tocline1">10.9&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#header.user-agent">User-Agent</a></li>
     287                  </ul>
     288               </li>
     289               <li class="tocline0">11.&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#IANA.considerations">IANA Considerations</a></li>
     290               <li class="tocline0">12.&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#security.considerations">Security Considerations</a><ul class="toc">
     291                     <li class="tocline1">12.1&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#security.sensitive">Transfer of Sensitive Information</a></li>
     292                     <li class="tocline1">12.2&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#encoding.sensitive.information.in.uris">Encoding Sensitive Information in URIs</a></li>
     293                     <li class="tocline1">12.3&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#location.spoofing">Location Headers and Spoofing</a></li>
     294                  </ul>
     295               </li>
     296               <li class="tocline0">13.&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#ack">Acknowledgments</a></li>
     297               <li class="tocline0">14.&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#rfc.references">References</a><ul class="toc">
     298                     <li class="tocline1">14.1&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#rfc.references.1">Normative References</a></li>
     299                     <li class="tocline1">14.2&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#rfc.references.2">Informative References</a></li>
     300                  </ul>
     301               </li>
     302               <li class="tocline0"><a href="p2-semantics.html#rfc.authors">Authors' Addresses</a></li>
     303               <li class="tocline0">A.&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#compatibility">Compatibility with Previous Versions</a><ul class="toc">
     304                     <li class="tocline1">A.1&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#changes.from.rfc.2068">Changes from RFC 2068</a></li>
     305                     <li class="tocline1">A.2&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#changes.from.rfc.2616">Changes from RFC 2616</a></li>
     306                  </ul>
     307               </li>
     308               <li class="tocline0">B.&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#rfc.section.B">Change Log (to be removed by RFC Editor before publication)</a><ul class="toc">
     309                     <li class="tocline1">B.1&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#rfc.section.B.1">Since RFC2616</a></li>
     310                     <li class="tocline1">B.2&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#rfc.section.B.2">Since draft-ietf-httpbis-p2-semantics-00</a></li>
     311                     <li class="tocline1">B.3&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#rfc.section.B.3">Since draft-ietf-httpbis-p2-semantics-01</a></li>
     312                  </ul>
     313               </li>
     314               <li class="tocline0"><a href="p2-semantics.html#rfc.ipr">Intellectual Property and Copyright Statements</a></li>
     315               <li class="tocline0"><a href="p2-semantics.html#rfc.index">Index</a></li>
     316            </ul>
     317            <h2><a href="p3-payload.html">HTTP/1.1, part 3: Message Payload and Content Negotiation</a></h2>
     318            <ul class="toc">
     319               <li class="tocline0">1.&nbsp;&nbsp;&nbsp;<a href="p3-payload.html#introduction">Introduction</a><ul class="toc">
     320                     <li class="tocline1">1.1&nbsp;&nbsp;&nbsp;<a href="p3-payload.html#intro.requirements">Requirements</a></li>
     321                  </ul>
     322               </li>
     323               <li class="tocline0">2.&nbsp;&nbsp;&nbsp;<a href="p3-payload.html#notation">Notational Conventions and Generic Grammar</a></li>
     324               <li class="tocline0">3.&nbsp;&nbsp;&nbsp;<a href="p3-payload.html#protocol.parameters">Protocol Parameters</a><ul class="toc">
     325                     <li class="tocline1">3.1&nbsp;&nbsp;&nbsp;<a href="p3-payload.html#character.sets">Character Sets</a><ul class="toc">
     326                           <li class="tocline1">3.1.1&nbsp;&nbsp;&nbsp;<a href="p3-payload.html#missing.charset">Missing Charset</a></li>
     327                        </ul>
     328                     </li>
     329                     <li class="tocline1">3.2&nbsp;&nbsp;&nbsp;<a href="p3-payload.html#content.codings">Content Codings</a></li>
     330                     <li class="tocline1">3.3&nbsp;&nbsp;&nbsp;<a href="p3-payload.html#media.types">Media Types</a><ul class="toc">
     331                           <li class="tocline1">3.3.1&nbsp;&nbsp;&nbsp;<a href="p3-payload.html#canonicalization.and.text.defaults">Canonicalization and Text Defaults</a></li>
     332                           <li class="tocline1">3.3.2&nbsp;&nbsp;&nbsp;<a href="p3-payload.html#multipart.types">Multipart Types</a></li>
     333                        </ul>
     334                     </li>
     335                     <li class="tocline1">3.4&nbsp;&nbsp;&nbsp;<a href="p3-payload.html#quality.values">Quality Values</a></li>
     336                     <li class="tocline1">3.5&nbsp;&nbsp;&nbsp;<a href="p3-payload.html#language.tags">Language Tags</a></li>
     337                  </ul>
     338               </li>
     339               <li class="tocline0">4.&nbsp;&nbsp;&nbsp;<a href="p3-payload.html#entity">Entity</a><ul class="toc">
     340                     <li class="tocline1">4.1&nbsp;&nbsp;&nbsp;<a href="p3-payload.html#entity.header.fields">Entity Header Fields</a></li>
     341                     <li class="tocline1">4.2&nbsp;&nbsp;&nbsp;<a href="p3-payload.html#entity.body">Entity Body</a><ul class="toc">
     342                           <li class="tocline1">4.2.1&nbsp;&nbsp;&nbsp;<a href="p3-payload.html#type">Type</a></li>
     343                           <li class="tocline1">4.2.2&nbsp;&nbsp;&nbsp;<a href="p3-payload.html#entity.length">Entity Length</a></li>
     344                        </ul>
     345                     </li>
     346                  </ul>
     347               </li>
     348               <li class="tocline0">5.&nbsp;&nbsp;&nbsp;<a href="p3-payload.html#content.negotiation">Content Negotiation</a><ul class="toc">
     349                     <li class="tocline1">5.1&nbsp;&nbsp;&nbsp;<a href="p3-payload.html#server-driven.negotiation">Server-driven Negotiation</a></li>
     350                     <li class="tocline1">5.2&nbsp;&nbsp;&nbsp;<a href="p3-payload.html#agent-driven.negotiation">Agent-driven Negotiation</a></li>
     351                     <li class="tocline1">5.3&nbsp;&nbsp;&nbsp;<a href="p3-payload.html#transparent.negotiation">Transparent Negotiation</a></li>
     352                  </ul>
     353               </li>
     354               <li class="tocline0">6.&nbsp;&nbsp;&nbsp;<a href="p3-payload.html#header.fields">Header Field Definitions</a><ul class="toc">
     355                     <li class="tocline1">6.1&nbsp;&nbsp;&nbsp;<a href="p3-payload.html#header.accept">Accept</a></li>
     356                     <li class="tocline1">6.2&nbsp;&nbsp;&nbsp;<a href="p3-payload.html#header.accept-charset">Accept-Charset</a></li>
     357                     <li class="tocline1">6.3&nbsp;&nbsp;&nbsp;<a href="p3-payload.html#header.accept-encoding">Accept-Encoding</a></li>
     358                     <li class="tocline1">6.4&nbsp;&nbsp;&nbsp;<a href="p3-payload.html#header.accept-language">Accept-Language</a></li>
     359                     <li class="tocline1">6.5&nbsp;&nbsp;&nbsp;<a href="p3-payload.html#header.content-encoding">Content-Encoding</a></li>
     360                     <li class="tocline1">6.6&nbsp;&nbsp;&nbsp;<a href="p3-payload.html#header.content-language">Content-Language</a></li>
     361                     <li class="tocline1">6.7&nbsp;&nbsp;&nbsp;<a href="p3-payload.html#header.content-location">Content-Location</a></li>
     362                     <li class="tocline1">6.8&nbsp;&nbsp;&nbsp;<a href="p3-payload.html#header.content-md5">Content-MD5</a></li>
     363                     <li class="tocline1">6.9&nbsp;&nbsp;&nbsp;<a href="p3-payload.html#header.content-type">Content-Type</a></li>
     364                  </ul>
     365               </li>
     366               <li class="tocline0">7.&nbsp;&nbsp;&nbsp;<a href="p3-payload.html#IANA.considerations">IANA Considerations</a></li>
     367               <li class="tocline0">8.&nbsp;&nbsp;&nbsp;<a href="p3-payload.html#security.considerations">Security Considerations</a><ul class="toc">
     368                     <li class="tocline1">8.1&nbsp;&nbsp;&nbsp;<a href="p3-payload.html#privacy.issues.connected.to.accept.headers">Privacy Issues Connected to Accept Headers</a></li>
     369                     <li class="tocline1">8.2&nbsp;&nbsp;&nbsp;<a href="p3-payload.html#content-disposition.issues">Content-Disposition Issues</a></li>
     370                  </ul>
     371               </li>
     372               <li class="tocline0">9.&nbsp;&nbsp;&nbsp;<a href="p3-payload.html#ack">Acknowledgments</a></li>
     373               <li class="tocline0">10.&nbsp;&nbsp;&nbsp;<a href="p3-payload.html#rfc.references">References</a><ul class="toc">
     374                     <li class="tocline1">10.1&nbsp;&nbsp;&nbsp;<a href="p3-payload.html#rfc.references.1">Normative References</a></li>
     375                     <li class="tocline1">10.2&nbsp;&nbsp;&nbsp;<a href="p3-payload.html#rfc.references.2">Informative References</a></li>
     376                  </ul>
     377               </li>
     378               <li class="tocline0"><a href="p3-payload.html#rfc.authors">Authors' Addresses</a></li>
     379               <li class="tocline0">A.&nbsp;&nbsp;&nbsp;<a href="p3-payload.html#differences.between.http.entities.and.rfc.2045.entities">Differences Between HTTP Entities and RFC 2045 Entities</a><ul class="toc">
     380                     <li class="tocline1">A.1&nbsp;&nbsp;&nbsp;<a href="p3-payload.html#mime-version">MIME-Version</a></li>
     381                     <li class="tocline1">A.2&nbsp;&nbsp;&nbsp;<a href="p3-payload.html#conversion.to.canonical.form">Conversion to Canonical Form</a></li>
     382                     <li class="tocline1">A.3&nbsp;&nbsp;&nbsp;<a href="p3-payload.html#introduction.of.content-encoding">Introduction of Content-Encoding</a></li>
     383                     <li class="tocline1">A.4&nbsp;&nbsp;&nbsp;<a href="p3-payload.html#no.content-transfer-encoding">No Content-Transfer-Encoding</a></li>
     384                     <li class="tocline1">A.5&nbsp;&nbsp;&nbsp;<a href="p3-payload.html#introduction.of.transfer-encoding">Introduction of Transfer-Encoding</a></li>
     385                     <li class="tocline1">A.6&nbsp;&nbsp;&nbsp;<a href="p3-payload.html#mhtml.line.length">MHTML and Line Length Limitations</a></li>
     386                  </ul>
     387               </li>
     388               <li class="tocline0">B.&nbsp;&nbsp;&nbsp;<a href="p3-payload.html#additional.features">Additional Features</a><ul class="toc">
     389                     <li class="tocline1">B.1&nbsp;&nbsp;&nbsp;<a href="p3-payload.html#content-disposition">Content-Disposition</a></li>
     390                  </ul>
     391               </li>
     392               <li class="tocline0">C.&nbsp;&nbsp;&nbsp;<a href="p3-payload.html#compatibility">Compatibility with Previous Versions</a><ul class="toc">
     393                     <li class="tocline1">C.1&nbsp;&nbsp;&nbsp;<a href="p3-payload.html#changes.from.rfc.2068">Changes from RFC 2068</a></li>
     394                     <li class="tocline1">C.2&nbsp;&nbsp;&nbsp;<a href="p3-payload.html#changes.from.rfc.2616">Changes from RFC 2616</a></li>
     395                  </ul>
     396               </li>
     397               <li class="tocline0">D.&nbsp;&nbsp;&nbsp;<a href="p3-payload.html#rfc.section.D">Change Log (to be removed by RFC Editor before publication)</a><ul class="toc">
     398                     <li class="tocline1">D.1&nbsp;&nbsp;&nbsp;<a href="p3-payload.html#rfc.section.D.1">Since RFC2616</a></li>
     399                     <li class="tocline1">D.2&nbsp;&nbsp;&nbsp;<a href="p3-payload.html#rfc.section.D.2">Since draft-ietf-httpbis-p3-payload-00</a></li>
     400                     <li class="tocline1">D.3&nbsp;&nbsp;&nbsp;<a href="p3-payload.html#rfc.section.D.3">Since draft-ietf-httpbis-p3-payload-01</a></li>
     401                  </ul>
     402               </li>
     403               <li class="tocline0"><a href="p3-payload.html#rfc.ipr">Intellectual Property and Copyright Statements</a></li>
     404               <li class="tocline0"><a href="p3-payload.html#rfc.index">Index</a></li>
     405            </ul>
     406            <h2><a href="p4-conditional.html">HTTP/1.1, part 4: Conditional Requests</a></h2>
     407            <ul class="toc">
     408               <li class="tocline0">1.&nbsp;&nbsp;&nbsp;<a href="p4-conditional.html#introduction">Introduction</a><ul class="toc">
     409                     <li class="tocline1">1.1&nbsp;&nbsp;&nbsp;<a href="p4-conditional.html#intro.requirements">Requirements</a></li>
     410                  </ul>
     411               </li>
     412               <li class="tocline0">2.&nbsp;&nbsp;&nbsp;<a href="p4-conditional.html#notation">Notational Conventions and Generic Grammar</a></li>
     413               <li class="tocline0">3.&nbsp;&nbsp;&nbsp;<a href="p4-conditional.html#entity.tags">Entity Tags</a></li>
     414               <li class="tocline0">4.&nbsp;&nbsp;&nbsp;<a href="p4-conditional.html#rfc.section.4">Status Code Definitions</a><ul class="toc">
     415                     <li class="tocline1">4.1&nbsp;&nbsp;&nbsp;<a href="p4-conditional.html#status.304">304 Not Modified</a></li>
     416                     <li class="tocline1">4.2&nbsp;&nbsp;&nbsp;<a href="p4-conditional.html#status.412">412 Precondition Failed</a></li>
     417                  </ul>
     418               </li>
     419               <li class="tocline0">5.&nbsp;&nbsp;&nbsp;<a href="p4-conditional.html#weak.and.strong.validators">Weak and Strong Validators</a></li>
     420               <li class="tocline0">6.&nbsp;&nbsp;&nbsp;<a href="p4-conditional.html#rules.for.when.to.use.entity.tags.and.last-modified.dates">Rules for When to Use Entity Tags and Last-Modified Dates</a></li>
     421               <li class="tocline0">7.&nbsp;&nbsp;&nbsp;<a href="p4-conditional.html#header.fields">Header Field Definitions</a><ul class="toc">
     422                     <li class="tocline1">7.1&nbsp;&nbsp;&nbsp;<a href="p4-conditional.html#header.etag">ETag</a></li>
     423                     <li class="tocline1">7.2&nbsp;&nbsp;&nbsp;<a href="p4-conditional.html#header.if-match">If-Match</a></li>
     424                     <li class="tocline1">7.3&nbsp;&nbsp;&nbsp;<a href="p4-conditional.html#header.if-modified-since">If-Modified-Since</a></li>
     425                     <li class="tocline1">7.4&nbsp;&nbsp;&nbsp;<a href="p4-conditional.html#header.if-none-match">If-None-Match</a></li>
     426                     <li class="tocline1">7.5&nbsp;&nbsp;&nbsp;<a href="p4-conditional.html#header.if-unmodified-since">If-Unmodified-Since</a></li>
     427                     <li class="tocline1">7.6&nbsp;&nbsp;&nbsp;<a href="p4-conditional.html#header.last-modified">Last-Modified</a></li>
     428                  </ul>
     429               </li>
     430               <li class="tocline0">8.&nbsp;&nbsp;&nbsp;<a href="p4-conditional.html#IANA.considerations">IANA Considerations</a></li>
     431               <li class="tocline0">9.&nbsp;&nbsp;&nbsp;<a href="p4-conditional.html#security.considerations">Security Considerations</a></li>
     432               <li class="tocline0">10.&nbsp;&nbsp;&nbsp;<a href="p4-conditional.html#ack">Acknowledgments</a></li>
     433               <li class="tocline0">11.&nbsp;&nbsp;&nbsp;<a href="p4-conditional.html#rfc.references">References</a><ul class="toc">
     434                     <li class="tocline1">11.1&nbsp;&nbsp;&nbsp;<a href="p4-conditional.html#rfc.references.1">Normative References</a></li>
     435                     <li class="tocline1">11.2&nbsp;&nbsp;&nbsp;<a href="p4-conditional.html#rfc.references.2">Informative References</a></li>
     436                  </ul>
     437               </li>
     438               <li class="tocline0"><a href="p4-conditional.html#rfc.authors">Authors' Addresses</a></li>
     439               <li class="tocline0">A.&nbsp;&nbsp;&nbsp;<a href="p4-conditional.html#compatibility">Compatibility with Previous Versions</a><ul class="toc">
     440                     <li class="tocline1">A.1&nbsp;&nbsp;&nbsp;<a href="p4-conditional.html#changes.from.rfc.2616">Changes from RFC 2616</a></li>
     441                  </ul>
     442               </li>
     443               <li class="tocline0">B.&nbsp;&nbsp;&nbsp;<a href="p4-conditional.html#rfc.section.B">Change Log (to be removed by RFC Editor before publication)</a><ul class="toc">
     444                     <li class="tocline1">B.1&nbsp;&nbsp;&nbsp;<a href="p4-conditional.html#rfc.section.B.1">Since RFC2616</a></li>
     445                     <li class="tocline1">B.2&nbsp;&nbsp;&nbsp;<a href="p4-conditional.html#rfc.section.B.2">Since draft-ietf-httpbis-p4-conditional-00</a></li>
     446                     <li class="tocline1">B.3&nbsp;&nbsp;&nbsp;<a href="p4-conditional.html#rfc.section.B.3">Since draft-ietf-httpbis-p4-conditional-01</a></li>
     447                  </ul>
     448               </li>
     449               <li class="tocline0"><a href="p4-conditional.html#rfc.ipr">Intellectual Property and Copyright Statements</a></li>
     450               <li class="tocline0"><a href="p4-conditional.html#rfc.index">Index</a></li>
     451            </ul>
     452            <h2><a href="p5-range.html">HTTP/1.1, part 5: Range Requests and Partial Responses</a></h2>
     453            <ul class="toc">
     454               <li class="tocline0">1.&nbsp;&nbsp;&nbsp;<a href="p5-range.html#introduction">Introduction</a><ul class="toc">
     455                     <li class="tocline1">1.1&nbsp;&nbsp;&nbsp;<a href="p5-range.html#intro.requirements">Requirements</a></li>
     456                  </ul>
     457               </li>
     458               <li class="tocline0">2.&nbsp;&nbsp;&nbsp;<a href="p5-range.html#notation">Notational Conventions and Generic Grammar</a></li>
     459               <li class="tocline0">3.&nbsp;&nbsp;&nbsp;<a href="p5-range.html#range.units">Range Units</a></li>
     460               <li class="tocline0">4.&nbsp;&nbsp;&nbsp;<a href="p5-range.html#rfc.section.4">Status Code Definitions</a><ul class="toc">
     461                     <li class="tocline1">4.1&nbsp;&nbsp;&nbsp;<a href="p5-range.html#status.206">206 Partial Content</a></li>
     462                     <li class="tocline1">4.2&nbsp;&nbsp;&nbsp;<a href="p5-range.html#status.416">416 Requested Range Not Satisfiable</a></li>
     463                  </ul>
     464               </li>
     465               <li class="tocline0">5.&nbsp;&nbsp;&nbsp;<a href="p5-range.html#combining.byte.ranges">Combining Byte Ranges</a></li>
     466               <li class="tocline0">6.&nbsp;&nbsp;&nbsp;<a href="p5-range.html#header.fields">Header Field Definitions</a><ul class="toc">
     467                     <li class="tocline1">6.1&nbsp;&nbsp;&nbsp;<a href="p5-range.html#header.accept-ranges">Accept-Ranges</a></li>
     468                     <li class="tocline1">6.2&nbsp;&nbsp;&nbsp;<a href="p5-range.html#header.content-range">Content-Range</a></li>
     469                     <li class="tocline1">6.3&nbsp;&nbsp;&nbsp;<a href="p5-range.html#header.if-range">If-Range</a></li>
     470                     <li class="tocline1">6.4&nbsp;&nbsp;&nbsp;<a href="p5-range.html#header.range">Range</a><ul class="toc">
     471                           <li class="tocline1">6.4.1&nbsp;&nbsp;&nbsp;<a href="p5-range.html#byte.ranges">Byte Ranges</a></li>
     472                           <li class="tocline1">6.4.2&nbsp;&nbsp;&nbsp;<a href="p5-range.html#range.retrieval.requests">Range Retrieval Requests</a></li>
     473                        </ul>
     474                     </li>
     475                  </ul>
     476               </li>
     477               <li class="tocline0">7.&nbsp;&nbsp;&nbsp;<a href="p5-range.html#IANA.considerations">IANA Considerations</a></li>
     478               <li class="tocline0">8.&nbsp;&nbsp;&nbsp;<a href="p5-range.html#security.considerations">Security Considerations</a></li>
     479               <li class="tocline0">9.&nbsp;&nbsp;&nbsp;<a href="p5-range.html#ack">Acknowledgments</a></li>
     480               <li class="tocline0">10.&nbsp;&nbsp;&nbsp;<a href="p5-range.html#rfc.references">References</a><ul class="toc">
     481                     <li class="tocline1">10.1&nbsp;&nbsp;&nbsp;<a href="p5-range.html#rfc.references.1">Normative References</a></li>
     482                     <li class="tocline1">10.2&nbsp;&nbsp;&nbsp;<a href="p5-range.html#rfc.references.2">Informative References</a></li>
     483                  </ul>
     484               </li>
     485               <li class="tocline0"><a href="p5-range.html#rfc.authors">Authors' Addresses</a></li>
     486               <li class="tocline0">A.&nbsp;&nbsp;&nbsp;<a href="p5-range.html#internet.media.type.multipart.byteranges">Internet Media Type multipart/byteranges</a></li>
     487               <li class="tocline0">B.&nbsp;&nbsp;&nbsp;<a href="p5-range.html#compatibility">Compatibility with Previous Versions</a><ul class="toc">
     488                     <li class="tocline1">B.1&nbsp;&nbsp;&nbsp;<a href="p5-range.html#changes.from.rfc.2068">Changes from RFC 2068</a></li>
     489                     <li class="tocline1">B.2&nbsp;&nbsp;&nbsp;<a href="p5-range.html#changes.from.rfc.2616">Changes from RFC 2616</a></li>
     490                  </ul>
     491               </li>
     492               <li class="tocline0">C.&nbsp;&nbsp;&nbsp;<a href="p5-range.html#rfc.section.C">Change Log (to be removed by RFC Editor before publication)</a><ul class="toc">
     493                     <li class="tocline1">C.1&nbsp;&nbsp;&nbsp;<a href="p5-range.html#rfc.section.C.1">Since RFC2616</a></li>
     494                     <li class="tocline1">C.2&nbsp;&nbsp;&nbsp;<a href="p5-range.html#rfc.section.C.2">Since draft-ietf-httpbis-p5-range-00</a></li>
     495                     <li class="tocline1">C.3&nbsp;&nbsp;&nbsp;<a href="p5-range.html#rfc.section.C.3">Since draft-ietf-httpbis-p5-range-01</a></li>
     496                  </ul>
     497               </li>
     498               <li class="tocline0"><a href="p5-range.html#rfc.ipr">Intellectual Property and Copyright Statements</a></li>
     499               <li class="tocline0"><a href="p5-range.html#rfc.index">Index</a></li>
     500            </ul>
     501            <h2><a href="p6-cache.html">HTTP/1.1, part 6: Caching</a></h2>
     502            <ul class="toc">
     503               <li class="tocline0">1.&nbsp;&nbsp;&nbsp;<a href="p6-cache.html#caching">Introduction</a><ul class="toc">
     504                     <li class="tocline1">1.1&nbsp;&nbsp;&nbsp;<a href="p6-cache.html#intro.purpose">Purpose</a></li>
     505                     <li class="tocline1">1.2&nbsp;&nbsp;&nbsp;<a href="p6-cache.html#intro.terminology">Terminology</a></li>
     506                     <li class="tocline1">1.3&nbsp;&nbsp;&nbsp;<a href="p6-cache.html#intro.requirements">Requirements</a></li>
     507                  </ul>
     508               </li>
     509               <li class="tocline0">2.&nbsp;&nbsp;&nbsp;<a href="p6-cache.html#notation">Notational Conventions and Generic Grammar</a></li>
     510               <li class="tocline0">3.&nbsp;&nbsp;&nbsp;<a href="p6-cache.html#caching.overview">Overview</a><ul class="toc">
     511                     <li class="tocline1">3.1&nbsp;&nbsp;&nbsp;<a href="p6-cache.html#cache.correctness">Cache Correctness</a></li>
     512                     <li class="tocline1">3.2&nbsp;&nbsp;&nbsp;<a href="p6-cache.html#warnings">Warnings</a></li>
     513                     <li class="tocline1">3.3&nbsp;&nbsp;&nbsp;<a href="p6-cache.html#cache-control.mechanisms">Cache-control Mechanisms</a></li>
     514                     <li class="tocline1">3.4&nbsp;&nbsp;&nbsp;<a href="p6-cache.html#explicit.ua.warnings">Explicit User Agent Warnings</a></li>
     515                     <li class="tocline1">3.5&nbsp;&nbsp;&nbsp;<a href="p6-cache.html#exceptions.to.the.rules.and.warnings">Exceptions to the Rules and Warnings</a></li>
     516                     <li class="tocline1">3.6&nbsp;&nbsp;&nbsp;<a href="p6-cache.html#client-controlled.behavior">Client-controlled Behavior</a></li>
     517                  </ul>
     518               </li>
     519               <li class="tocline0">4.&nbsp;&nbsp;&nbsp;<a href="p6-cache.html#expiration.model">Expiration Model</a><ul class="toc">
     520                     <li class="tocline1">4.1&nbsp;&nbsp;&nbsp;<a href="p6-cache.html#server-specified.expiration">Server-Specified Expiration</a></li>
     521                     <li class="tocline1">4.2&nbsp;&nbsp;&nbsp;<a href="p6-cache.html#heuristic.expiration">Heuristic Expiration</a></li>
     522                     <li class="tocline1">4.3&nbsp;&nbsp;&nbsp;<a href="p6-cache.html#age.calculations">Age Calculations</a></li>
     523                     <li class="tocline1">4.4&nbsp;&nbsp;&nbsp;<a href="p6-cache.html#expiration.calculations">Expiration Calculations</a></li>
     524                     <li class="tocline1">4.5&nbsp;&nbsp;&nbsp;<a href="p6-cache.html#disambiguating.expiration.values">Disambiguating Expiration Values</a></li>
     525                     <li class="tocline1">4.6&nbsp;&nbsp;&nbsp;<a href="p6-cache.html#disambiguating.multiple.responses">Disambiguating Multiple Responses</a></li>
     526                  </ul>
     527               </li>
     528               <li class="tocline0">5.&nbsp;&nbsp;&nbsp;<a href="p6-cache.html#validation.model">Validation Model</a></li>
     529               <li class="tocline0">6.&nbsp;&nbsp;&nbsp;<a href="p6-cache.html#response.cacheability">Response Cacheability</a></li>
     530               <li class="tocline0">7.&nbsp;&nbsp;&nbsp;<a href="p6-cache.html#constructing.responses.from.caches">Constructing Responses From Caches</a><ul class="toc">
     531                     <li class="tocline1">7.1&nbsp;&nbsp;&nbsp;<a href="p6-cache.html#end-to-end.and.hop-by-hop.headers">End-to-end and Hop-by-hop Headers</a></li>
     532                     <li class="tocline1">7.2&nbsp;&nbsp;&nbsp;<a href="p6-cache.html#non-modifiable.headers">Non-modifiable Headers</a></li>
     533                     <li class="tocline1">7.3&nbsp;&nbsp;&nbsp;<a href="p6-cache.html#combining.headers">Combining Headers</a></li>
     534                  </ul>
     535               </li>
     536               <li class="tocline0">8.&nbsp;&nbsp;&nbsp;<a href="p6-cache.html#caching.negotiated.responses">Caching Negotiated Responses</a></li>
     537               <li class="tocline0">9.&nbsp;&nbsp;&nbsp;<a href="p6-cache.html#shared.and.non-shared.caches">Shared and Non-Shared Caches</a></li>
     538               <li class="tocline0">10.&nbsp;&nbsp;&nbsp;<a href="p6-cache.html#errors.or.incomplete.response.cache.behavior">Errors or Incomplete Response Cache Behavior</a></li>
     539               <li class="tocline0">11.&nbsp;&nbsp;&nbsp;<a href="p6-cache.html#side.effects.of.get.and.head">Side Effects of GET and HEAD</a></li>
     540               <li class="tocline0">12.&nbsp;&nbsp;&nbsp;<a href="p6-cache.html#invalidation.after.updates.or.deletions">Invalidation After Updates or Deletions</a></li>
     541               <li class="tocline0">13.&nbsp;&nbsp;&nbsp;<a href="p6-cache.html#write-through.mandatory">Write-Through Mandatory</a></li>
     542               <li class="tocline0">14.&nbsp;&nbsp;&nbsp;<a href="p6-cache.html#cache.replacement">Cache Replacement</a></li>
     543               <li class="tocline0">15.&nbsp;&nbsp;&nbsp;<a href="p6-cache.html#history.lists">History Lists</a></li>
     544               <li class="tocline0">16.&nbsp;&nbsp;&nbsp;<a href="p6-cache.html#header.fields">Header Field Definitions</a><ul class="toc">
     545                     <li class="tocline1">16.1&nbsp;&nbsp;&nbsp;<a href="p6-cache.html#header.age">Age</a></li>
     546                     <li class="tocline1">16.2&nbsp;&nbsp;&nbsp;<a href="p6-cache.html#header.cache-control">Cache-Control</a><ul class="toc">
     547                           <li class="tocline1">16.2.1&nbsp;&nbsp;&nbsp;<a href="p6-cache.html#what.is.cacheable">What is Cacheable</a></li>
     548                           <li class="tocline1">16.2.2&nbsp;&nbsp;&nbsp;<a href="p6-cache.html#what.may.be.stored.by.caches">What May be Stored by Caches</a></li>
     549                           <li class="tocline1">16.2.3&nbsp;&nbsp;&nbsp;<a href="p6-cache.html#modifications.of.the.basic.expiration.mechanism">Modifications of the Basic Expiration Mechanism</a></li>
     550                           <li class="tocline1">16.2.4&nbsp;&nbsp;&nbsp;<a href="p6-cache.html#cache.revalidation.and.reload.controls">Cache Revalidation and Reload Controls</a></li>
     551                           <li class="tocline1">16.2.5&nbsp;&nbsp;&nbsp;<a href="p6-cache.html#no-transform.directive">No-Transform Directive</a></li>
     552                           <li class="tocline1">16.2.6&nbsp;&nbsp;&nbsp;<a href="p6-cache.html#cache.control.extensions">Cache Control Extensions</a></li>
     553                        </ul>
     554                     </li>
     555                     <li class="tocline1">16.3&nbsp;&nbsp;&nbsp;<a href="p6-cache.html#header.expires">Expires</a></li>
     556                     <li class="tocline1">16.4&nbsp;&nbsp;&nbsp;<a href="p6-cache.html#header.pragma">Pragma</a></li>
     557                     <li class="tocline1">16.5&nbsp;&nbsp;&nbsp;<a href="p6-cache.html#header.vary">Vary</a></li>
     558                     <li class="tocline1">16.6&nbsp;&nbsp;&nbsp;<a href="p6-cache.html#header.warning">Warning</a></li>
     559                  </ul>
     560               </li>
     561               <li class="tocline0">17.&nbsp;&nbsp;&nbsp;<a href="p6-cache.html#IANA.considerations">IANA Considerations</a></li>
     562               <li class="tocline0">18.&nbsp;&nbsp;&nbsp;<a href="p6-cache.html#security.considerations">Security Considerations</a></li>
     563               <li class="tocline0">19.&nbsp;&nbsp;&nbsp;<a href="p6-cache.html#ack">Acknowledgments</a></li>
     564               <li class="tocline0">20.&nbsp;&nbsp;&nbsp;<a href="p6-cache.html#rfc.references">References</a><ul class="toc">
     565                     <li class="tocline1">20.1&nbsp;&nbsp;&nbsp;<a href="p6-cache.html#rfc.references.1">Normative References</a></li>
     566                     <li class="tocline1">20.2&nbsp;&nbsp;&nbsp;<a href="p6-cache.html#rfc.references.2">Informative References</a></li>
     567                  </ul>
     568               </li>
     569               <li class="tocline0"><a href="p6-cache.html#rfc.authors">Authors' Addresses</a></li>
     570               <li class="tocline0">A.&nbsp;&nbsp;&nbsp;<a href="p6-cache.html#compatibility">Compatibility with Previous Versions</a><ul class="toc">
     571                     <li class="tocline1">A.1&nbsp;&nbsp;&nbsp;<a href="p6-cache.html#changes.from.rfc.2068">Changes from RFC 2068</a></li>
     572                     <li class="tocline1">A.2&nbsp;&nbsp;&nbsp;<a href="p6-cache.html#changes.from.rfc.2616">Changes from RFC 2616</a></li>
     573                  </ul>
     574               </li>
     575               <li class="tocline0">B.&nbsp;&nbsp;&nbsp;<a href="p6-cache.html#rfc.section.B">Change Log (to be removed by RFC Editor before publication)</a><ul class="toc">
     576                     <li class="tocline1">B.1&nbsp;&nbsp;&nbsp;<a href="p6-cache.html#rfc.section.B.1">Since RFC2616</a></li>
     577                     <li class="tocline1">B.2&nbsp;&nbsp;&nbsp;<a href="p6-cache.html#rfc.section.B.2">Since draft-ietf-httpbis-p6-cache-00</a></li>
     578                     <li class="tocline1">B.3&nbsp;&nbsp;&nbsp;<a href="p6-cache.html#rfc.section.B.3">Since draft-ietf-httpbis-p6-cache-01</a></li>
     579                  </ul>
     580               </li>
     581               <li class="tocline0"><a href="p6-cache.html#rfc.ipr">Intellectual Property and Copyright Statements</a></li>
     582               <li class="tocline0"><a href="p6-cache.html#rfc.index">Index</a></li>
     583            </ul>
     584            <h2><a href="p7-auth.html">HTTP/1.1, part 7: Authentication</a></h2>
     585            <ul class="toc">
     586               <li class="tocline0">1.&nbsp;&nbsp;&nbsp;<a href="p7-auth.html#introduction">Introduction</a><ul class="toc">
     587                     <li class="tocline1">1.1&nbsp;&nbsp;&nbsp;<a href="p7-auth.html#intro.requirements">Requirements</a></li>
     588                  </ul>
     589               </li>
     590               <li class="tocline0">2.&nbsp;&nbsp;&nbsp;<a href="p7-auth.html#notation">Notational Conventions and Generic Grammar</a></li>
     591               <li class="tocline0">3.&nbsp;&nbsp;&nbsp;<a href="p7-auth.html#rfc.section.3">Status Code Definitions</a><ul class="toc">
     592                     <li class="tocline1">3.1&nbsp;&nbsp;&nbsp;<a href="p7-auth.html#status.401">401 Unauthorized</a></li>
     593                     <li class="tocline1">3.2&nbsp;&nbsp;&nbsp;<a href="p7-auth.html#status.407">407 Proxy Authentication Required</a></li>
     594                  </ul>
     595               </li>
     596               <li class="tocline0">4.&nbsp;&nbsp;&nbsp;<a href="p7-auth.html#header.fields">Header Field Definitions</a><ul class="toc">
     597                     <li class="tocline1">4.1&nbsp;&nbsp;&nbsp;<a href="p7-auth.html#header.authorization">Authorization</a></li>
     598                     <li class="tocline1">4.2&nbsp;&nbsp;&nbsp;<a href="p7-auth.html#header.proxy-authenticate">Proxy-Authenticate</a></li>
     599                     <li class="tocline1">4.3&nbsp;&nbsp;&nbsp;<a href="p7-auth.html#header.proxy-authorization">Proxy-Authorization</a></li>
     600                     <li class="tocline1">4.4&nbsp;&nbsp;&nbsp;<a href="p7-auth.html#header.www-authenticate">WWW-Authenticate</a></li>
     601                  </ul>
     602               </li>
     603               <li class="tocline0">5.&nbsp;&nbsp;&nbsp;<a href="p7-auth.html#IANA.considerations">IANA Considerations</a></li>
     604               <li class="tocline0">6.&nbsp;&nbsp;&nbsp;<a href="p7-auth.html#security.considerations">Security Considerations</a><ul class="toc">
     605                     <li class="tocline1">6.1&nbsp;&nbsp;&nbsp;<a href="p7-auth.html#auth.credentials.and.idle.clients">Authentication Credentials and Idle Clients</a></li>
     606                  </ul>
     607               </li>
     608               <li class="tocline0">7.&nbsp;&nbsp;&nbsp;<a href="p7-auth.html#ack">Acknowledgments</a></li>
     609               <li class="tocline0">8.&nbsp;&nbsp;&nbsp;<a href="p7-auth.html#rfc.references">References</a><ul class="toc">
     610                     <li class="tocline1">8.1&nbsp;&nbsp;&nbsp;<a href="p7-auth.html#rfc.references.1">Normative References</a></li>
     611                     <li class="tocline1">8.2&nbsp;&nbsp;&nbsp;<a href="p7-auth.html#rfc.references.2">Informative References</a></li>
     612                  </ul>
     613               </li>
     614               <li class="tocline0"><a href="p7-auth.html#rfc.authors">Authors' Addresses</a></li>
     615               <li class="tocline0">A.&nbsp;&nbsp;&nbsp;<a href="p7-auth.html#compatibility">Compatibility with Previous Versions</a><ul class="toc">
     616                     <li class="tocline1">A.1&nbsp;&nbsp;&nbsp;<a href="p7-auth.html#changes.from.rfc.2616">Changes from RFC 2616</a></li>
     617                  </ul>
     618               </li>
     619               <li class="tocline0">B.&nbsp;&nbsp;&nbsp;<a href="p7-auth.html#rfc.section.B">Change Log (to be removed by RFC Editor before publication)</a><ul class="toc">
     620                     <li class="tocline1">B.1&nbsp;&nbsp;&nbsp;<a href="p7-auth.html#rfc.section.B.1">Since RFC2616</a></li>
     621                     <li class="tocline1">B.2&nbsp;&nbsp;&nbsp;<a href="p7-auth.html#rfc.section.B.2">Since draft-ietf-httpbis-p7-auth-00</a></li>
     622                     <li class="tocline1">B.3&nbsp;&nbsp;&nbsp;<a href="p7-auth.html#rfc.section.B.3">Since draft-ietf-httpbis-p7-auth-01</a></li>
     623                  </ul>
     624               </li>
     625               <li class="tocline0"><a href="p7-auth.html#rfc.ipr">Intellectual Property and Copyright Statements</a></li>
     626               <li class="tocline0"><a href="p7-auth.html#rfc.index">Index</a></li>
     627            </ul>
     628         </div>
    51629      </div>
    52    </div>
    53    <div id="content">
    54       <h1>HTTP/1.1 Drafts: Combined Table of Contents</h1>
    55 <!-- ZZZZZZZ -->
    56 
    57 <h2><a href="p1-messaging.html">HTTP/1.1, part 1: URIs, Connections, and Message Parsing</a></h2>
    58       <ul class="toc">
    59          <li class="tocline0">1.&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#introduction">Introduction</a><ul class="toc">
    60                <li class="tocline1">1.1&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#intro.purpose">Purpose</a></li>
    61                <li class="tocline1">1.2&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#intro.requirements">Requirements</a></li>
    62                <li class="tocline1">1.3&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#intro.terminology">Terminology</a></li>
    63                <li class="tocline1">1.4&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#intro.overall.operation">Overall Operation</a></li>
    64             </ul>
    65          </li>
    66          <li class="tocline0">2.&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#notation">Notational Conventions and Generic Grammar</a><ul class="toc">
    67                <li class="tocline1">2.1&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#notation.abnf">Augmented BNF</a></li>
    68                <li class="tocline1">2.2&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#basic.rules">Basic Rules</a></li>
    69             </ul>
    70          </li>
    71          <li class="tocline0">3.&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#protocol.parameters">Protocol Parameters</a><ul class="toc">
    72                <li class="tocline1">3.1&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#http.version">HTTP Version</a></li>
    73                <li class="tocline1">3.2&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#uri">Uniform Resource Identifiers</a><ul class="toc">
    74                      <li class="tocline1">3.2.1&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#general.syntax">General Syntax</a></li>
    75                      <li class="tocline1">3.2.2&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#http.url">http URL</a></li>
    76                      <li class="tocline1">3.2.3&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#uri.comparison">URI Comparison</a></li>
    77                   </ul>
    78                </li>
    79                <li class="tocline1">3.3&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#date.time.formats">Date/Time Formats</a><ul class="toc">
    80                      <li class="tocline1">3.3.1&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#full.date">Full Date</a></li>
    81                   </ul>
    82                </li>
    83                <li class="tocline1">3.4&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#transfer.codings">Transfer Codings</a><ul class="toc">
    84                      <li class="tocline1">3.4.1&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#chunked.transfer.encoding">Chunked Transfer Coding</a></li>
    85                   </ul>
    86                </li>
    87                <li class="tocline1">3.5&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#product.tokens">Product Tokens</a></li>
    88             </ul>
    89          </li>
    90          <li class="tocline0">4.&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#http.message">HTTP Message</a><ul class="toc">
    91                <li class="tocline1">4.1&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#message.types">Message Types</a></li>
    92                <li class="tocline1">4.2&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#message.headers">Message Headers</a></li>
    93                <li class="tocline1">4.3&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#message.body">Message Body</a></li>
    94                <li class="tocline1">4.4&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#message.length">Message Length</a></li>
    95                <li class="tocline1">4.5&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#general.header.fields">General Header Fields</a></li>
    96             </ul>
    97          </li>
    98          <li class="tocline0">5.&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#request">Request</a><ul class="toc">
    99                <li class="tocline1">5.1&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#request-line">Request-Line</a><ul class="toc">
    100                      <li class="tocline1">5.1.1&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#method">Method</a></li>
    101                      <li class="tocline1">5.1.2&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#request-uri">Request-URI</a></li>
    102                   </ul>
    103                </li>
    104                <li class="tocline1">5.2&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#the.resource.identified.by.a.request">The Resource Identified by a Request</a></li>
    105             </ul>
    106          </li>
    107          <li class="tocline0">6.&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#response">Response</a><ul class="toc">
    108                <li class="tocline1">6.1&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#status-line">Status-Line</a><ul class="toc">
    109                      <li class="tocline1">6.1.1&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#status.code.and.reason.phrase">Status Code and Reason Phrase</a></li>
    110                   </ul>
    111                </li>
    112             </ul>
    113          </li>
    114          <li class="tocline0">7.&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#connections">Connections</a><ul class="toc">
    115                <li class="tocline1">7.1&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#persistent.connections">Persistent Connections</a><ul class="toc">
    116                      <li class="tocline1">7.1.1&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#persistent.purpose">Purpose</a></li>
    117                      <li class="tocline1">7.1.2&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#persistent.overall">Overall Operation</a><ul class="toc">
    118                            <li class="tocline1">7.1.2.1&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#persistent.negotiation">Negotiation</a></li>
    119                            <li class="tocline1">7.1.2.2&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#pipelining">Pipelining</a></li>
    120                         </ul>
    121                      </li>
    122                      <li class="tocline1">7.1.3&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#persistent.proxy">Proxy Servers</a></li>
    123                      <li class="tocline1">7.1.4&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#persistent.practical">Practical Considerations</a></li>
    124                   </ul>
    125                </li>
    126                <li class="tocline1">7.2&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#message.transmission.requirements">Message Transmission Requirements</a><ul class="toc">
    127                      <li class="tocline1">7.2.1&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#persistent.flow">Persistent Connections and Flow Control</a></li>
    128                      <li class="tocline1">7.2.2&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#persistent.monitor">Monitoring Connections for Error Status Messages</a></li>
    129                      <li class="tocline1">7.2.3&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#use.of.the.100.status">Use of the 100 (Continue) Status</a></li>
    130                      <li class="tocline1">7.2.4&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#connection.premature">Client Behavior if Server Prematurely Closes Connection</a></li>
    131                   </ul>
    132                </li>
    133             </ul>
    134          </li>
    135          <li class="tocline0">8.&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#header.fields">Header Field Definitions</a><ul class="toc">
    136                <li class="tocline1">8.1&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#header.connection">Connection</a></li>
    137                <li class="tocline1">8.2&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#header.content-length">Content-Length</a></li>
    138                <li class="tocline1">8.3&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#header.date">Date</a><ul class="toc">
    139                      <li class="tocline1">8.3.1&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#clockless.origin.server.operation">Clockless Origin Server Operation</a></li>
    140                   </ul>
    141                </li>
    142                <li class="tocline1">8.4&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#header.host">Host</a></li>
    143                <li class="tocline1">8.5&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#header.te">TE</a></li>
    144                <li class="tocline1">8.6&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#header.trailer">Trailer</a></li>
    145                <li class="tocline1">8.7&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#header.transfer-encoding">Transfer-Encoding</a></li>
    146                <li class="tocline1">8.8&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#header.upgrade">Upgrade</a></li>
    147                <li class="tocline1">8.9&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#header.via">Via</a></li>
    148             </ul>
    149          </li>
    150          <li class="tocline0">9.&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#IANA.considerations">IANA Considerations</a></li>
    151          <li class="tocline0">10.&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#security.considerations">Security Considerations</a><ul class="toc">
    152                <li class="tocline1">10.1&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#personal.information">Personal Information</a></li>
    153                <li class="tocline1">10.2&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#abuse.of.server.log.information">Abuse of Server Log Information</a></li>
    154                <li class="tocline1">10.3&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#attack.pathname">Attacks Based On File and Path Names</a></li>
    155                <li class="tocline1">10.4&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#dns.spoofing">DNS Spoofing</a></li>
    156                <li class="tocline1">10.5&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#attack.proxies">Proxies and Caching</a></li>
    157                <li class="tocline1">10.6&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#attack.DoS">Denial of Service Attacks on Proxies</a></li>
    158             </ul>
    159          </li>
    160          <li class="tocline0">11.&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#ack">Acknowledgments</a></li>
    161          <li class="tocline0">12.&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#rfc.references">References</a><ul class="toc">
    162                <li class="tocline1">12.1&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#rfc.references.1">Normative References</a></li>
    163                <li class="tocline1">12.2&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#rfc.references.2">Informative References</a></li>
    164             </ul>
    165          </li>
    166          <li class="tocline0"><a href="p1-messaging.html#rfc.authors">Authors' Addresses</a></li>
    167          <li class="tocline0">A.&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#internet.media.type.http">Internet Media Types</a><ul class="toc">
    168                <li class="tocline1">A.1&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#internet.media.type.message.http">Internet Media Type message/http</a></li>
    169                <li class="tocline1">A.2&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#internet.media.type.application.http">Internet Media Type application/http</a></li>
    170             </ul>
    171          </li>
    172          <li class="tocline0">B.&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#tolerant.applications">Tolerant Applications</a></li>
    173          <li class="tocline0">C.&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#conversion.of.date.formats">Conversion of Date Formats</a></li>
    174          <li class="tocline0">D.&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#compatibility">Compatibility with Previous Versions</a><ul class="toc">
    175                <li class="tocline1">D.1&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#changes.from.1.0">Changes from HTTP/1.0</a><ul class="toc">
    176                      <li class="tocline1">D.1.1&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#changes.to.simplify.multi-homed.web.servers.and.conserve.ip.addresses">Changes to Simplify Multi-homed Web Servers and Conserve IP Addresses</a></li>
    177                   </ul>
    178                </li>
    179                <li class="tocline1">D.2&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#compatibility.with.http.1.0.persistent.connections">Compatibility with HTTP/1.0 Persistent Connections</a></li>
    180                <li class="tocline1">D.3&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#changes.from.rfc.2068">Changes from RFC 2068</a></li>
    181                <li class="tocline1">D.4&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#changes.from.rfc.2616">Changes from RFC 2616</a></li>
    182             </ul>
    183          </li>
    184          <li class="tocline0">E.&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#rfc.section.E">Change Log (to be removed by RFC Editor before publication)</a><ul class="toc">
    185                <li class="tocline1">E.1&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#rfc.section.E.1">Since RFC2616</a></li>
    186                <li class="tocline1">E.2&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#rfc.section.E.2">Since draft-ietf-httpbis-p1-messaging-00</a></li>
    187                <li class="tocline1">E.3&nbsp;&nbsp;&nbsp;<a href="p1-messaging.html#rfc.section.E.3">Since draft-ietf-httpbis-p1-messaging-01</a></li>
    188             </ul>
    189          </li>
    190          <li class="tocline0"><a href="p1-messaging.html#rfc.ipr">Intellectual Property and Copyright Statements</a></li>
    191          <li class="tocline0"><a href="p1-messaging.html#rfc.index">Index</a></li>
    192       </ul>
    193 
    194 <h2><a href="p2-semantics.html">HTTP/1.1, part 2: Message Semantics</a></h2>
    195       <ul class="toc">
    196          <li class="tocline0">1.&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#introduction">Introduction</a><ul class="toc">
    197                <li class="tocline1">1.1&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#intro.requirements">Requirements</a></li>
    198             </ul>
    199          </li>
    200          <li class="tocline0">2.&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#method">Method</a></li>
    201          <li class="tocline0">3.&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#request.header.fields">Request Header Fields</a></li>
    202          <li class="tocline0">4.&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#status.code.and.reason.phrase">Status Code and Reason Phrase</a></li>
    203          <li class="tocline0">5.&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#response.header.fields">Response Header Fields</a></li>
    204          <li class="tocline0">6.&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#entity">Entity</a></li>
    205          <li class="tocline0">7.&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#method.definitions">Method Definitions</a><ul class="toc">
    206                <li class="tocline1">7.1&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#safe.and.idempotent">Safe and Idempotent Methods</a><ul class="toc">
    207                      <li class="tocline1">7.1.1&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#safe.methods">Safe Methods</a></li>
    208                      <li class="tocline1">7.1.2&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#idempotent.methods">Idempotent Methods</a></li>
    209                   </ul>
    210                </li>
    211                <li class="tocline1">7.2&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#OPTIONS">OPTIONS</a></li>
    212                <li class="tocline1">7.3&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#GET">GET</a></li>
    213                <li class="tocline1">7.4&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#HEAD">HEAD</a></li>
    214                <li class="tocline1">7.5&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#POST">POST</a></li>
    215                <li class="tocline1">7.6&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#PUT">PUT</a></li>
    216                <li class="tocline1">7.7&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#DELETE">DELETE</a></li>
    217                <li class="tocline1">7.8&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#TRACE">TRACE</a></li>
    218                <li class="tocline1">7.9&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#CONNECT">CONNECT</a></li>
    219             </ul>
    220          </li>
    221          <li class="tocline0">8.&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#status.codes">Status Code Definitions</a><ul class="toc">
    222                <li class="tocline1">8.1&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#status.1xx">Informational 1xx</a><ul class="toc">
    223                      <li class="tocline1">8.1.1&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#status.100">100 Continue</a></li>
    224                      <li class="tocline1">8.1.2&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#status.101">101 Switching Protocols</a></li>
    225                   </ul>
    226                </li>
    227                <li class="tocline1">8.2&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#status.2xx">Successful 2xx</a><ul class="toc">
    228                      <li class="tocline1">8.2.1&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#status.200">200 OK</a></li>
    229                      <li class="tocline1">8.2.2&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#status.201">201 Created</a></li>
    230                      <li class="tocline1">8.2.3&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#status.202">202 Accepted</a></li>
    231                      <li class="tocline1">8.2.4&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#status.203">203 Non-Authoritative Information</a></li>
    232                      <li class="tocline1">8.2.5&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#status.204">204 No Content</a></li>
    233                      <li class="tocline1">8.2.6&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#status.205">205 Reset Content</a></li>
    234                      <li class="tocline1">8.2.7&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#status.206">206 Partial Content</a></li>
    235                   </ul>
    236                </li>
    237                <li class="tocline1">8.3&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#status.3xx">Redirection 3xx</a><ul class="toc">
    238                      <li class="tocline1">8.3.1&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#status.300">300 Multiple Choices</a></li>
    239                      <li class="tocline1">8.3.2&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#status.301">301 Moved Permanently</a></li>
    240                      <li class="tocline1">8.3.3&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#status.302">302 Found</a></li>
    241                      <li class="tocline1">8.3.4&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#status.303">303 See Other</a></li>
    242                      <li class="tocline1">8.3.5&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#status.304">304 Not Modified</a></li>
    243                      <li class="tocline1">8.3.6&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#status.305">305 Use Proxy</a></li>
    244                      <li class="tocline1">8.3.7&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#status.306">306 (Unused)</a></li>
    245                      <li class="tocline1">8.3.8&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#status.307">307 Temporary Redirect</a></li>
    246                   </ul>
    247                </li>
    248                <li class="tocline1">8.4&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#status.4xx">Client Error 4xx</a><ul class="toc">
    249                      <li class="tocline1">8.4.1&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#status.400">400 Bad Request</a></li>
    250                      <li class="tocline1">8.4.2&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#status.401">401 Unauthorized</a></li>
    251                      <li class="tocline1">8.4.3&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#status.402">402 Payment Required</a></li>
    252                      <li class="tocline1">8.4.4&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#status.403">403 Forbidden</a></li>
    253                      <li class="tocline1">8.4.5&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#status.404">404 Not Found</a></li>
    254                      <li class="tocline1">8.4.6&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#status.405">405 Method Not Allowed</a></li>
    255                      <li class="tocline1">8.4.7&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#status.406">406 Not Acceptable</a></li>
    256                      <li class="tocline1">8.4.8&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#status.407">407 Proxy Authentication Required</a></li>
    257                      <li class="tocline1">8.4.9&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#status.408">408 Request Timeout</a></li>
    258                      <li class="tocline1">8.4.10&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#status.409">409 Conflict</a></li>
    259                      <li class="tocline1">8.4.11&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#status.410">410 Gone</a></li>
    260                      <li class="tocline1">8.4.12&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#status.411">411 Length Required</a></li>
    261                      <li class="tocline1">8.4.13&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#status.412">412 Precondition Failed</a></li>
    262                      <li class="tocline1">8.4.14&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#status.413">413 Request Entity Too Large</a></li>
    263                      <li class="tocline1">8.4.15&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#status.414">414 Request-URI Too Long</a></li>
    264                      <li class="tocline1">8.4.16&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#status.415">415 Unsupported Media Type</a></li>
    265                      <li class="tocline1">8.4.17&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#status.416">416 Requested Range Not Satisfiable</a></li>
    266                      <li class="tocline1">8.4.18&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#status.417">417 Expectation Failed</a></li>
    267                   </ul>
    268                </li>
    269                <li class="tocline1">8.5&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#status.5xx">Server Error 5xx</a><ul class="toc">
    270                      <li class="tocline1">8.5.1&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#status.500">500 Internal Server Error</a></li>
    271                      <li class="tocline1">8.5.2&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#status.501">501 Not Implemented</a></li>
    272                      <li class="tocline1">8.5.3&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#status.502">502 Bad Gateway</a></li>
    273                      <li class="tocline1">8.5.4&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#status.503">503 Service Unavailable</a></li>
    274                      <li class="tocline1">8.5.5&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#status.504">504 Gateway Timeout</a></li>
    275                      <li class="tocline1">8.5.6&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#status.505">505 HTTP Version Not Supported</a></li>
    276                   </ul>
    277                </li>
    278             </ul>
    279          </li>
    280          <li class="tocline0">9.&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#header.fields">Header Field Definitions</a><ul class="toc">
    281                <li class="tocline1">9.1&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#header.allow">Allow</a></li>
    282                <li class="tocline1">9.2&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#header.expect">Expect</a></li>
    283                <li class="tocline1">9.3&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#header.from">From</a></li>
    284                <li class="tocline1">9.4&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#header.location">Location</a></li>
    285                <li class="tocline1">9.5&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#header.max-forwards">Max-Forwards</a></li>
    286                <li class="tocline1">9.6&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#header.referer">Referer</a></li>
    287                <li class="tocline1">9.7&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#header.retry-after">Retry-After</a></li>
    288                <li class="tocline1">9.8&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#header.server">Server</a></li>
    289                <li class="tocline1">9.9&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#header.user-agent">User-Agent</a></li>
    290             </ul>
    291          </li>
    292          <li class="tocline0">10.&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#IANA.considerations">IANA Considerations</a></li>
    293          <li class="tocline0">11.&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#security.considerations">Security Considerations</a><ul class="toc">
    294                <li class="tocline1">11.1&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#security.sensitive">Transfer of Sensitive Information</a></li>
    295                <li class="tocline1">11.2&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#encoding.sensitive.information.in.uris">Encoding Sensitive Information in URIs</a></li>
    296                <li class="tocline1">11.3&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#location.spoofing">Location Headers and Spoofing</a></li>
    297             </ul>
    298          </li>
    299          <li class="tocline0">12.&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#ack">Acknowledgments</a></li>
    300          <li class="tocline0">13.&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#rfc.references">References</a><ul class="toc">
    301                <li class="tocline1">13.1&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#rfc.references.1">Normative References</a></li>
    302                <li class="tocline1">13.2&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#rfc.references.2">Informative References</a></li>
    303             </ul>
    304          </li>
    305          <li class="tocline0"><a href="p2-semantics.html#rfc.authors">Authors' Addresses</a></li>
    306          <li class="tocline0">A.&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#compatibility">Compatibility with Previous Versions</a><ul class="toc">
    307                <li class="tocline1">A.1&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#changes.from.rfc.2068">Changes from RFC 2068</a></li>
    308                <li class="tocline1">A.2&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#changes.from.rfc.2616">Changes from RFC 2616</a></li>
    309             </ul>
    310          </li>
    311          <li class="tocline0">B.&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#rfc.section.B">Change Log (to be removed by RFC Editor before publication)</a><ul class="toc">
    312                <li class="tocline1">B.1&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#rfc.section.B.1">Since RFC2616</a></li>
    313                <li class="tocline1">B.2&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#rfc.section.B.2">Since draft-ietf-httpbis-p2-semantics-00</a></li>
    314                <li class="tocline1">B.3&nbsp;&nbsp;&nbsp;<a href="p2-semantics.html#rfc.section.B.3">Since draft-ietf-httpbis-p2-semantics-01</a></li>
    315             </ul>
    316          </li>
    317          <li class="tocline0"><a href="p2-semantics.html#rfc.ipr">Intellectual Property and Copyright Statements</a></li>
    318          <li class="tocline0"><a href="p2-semantics.html#rfc.index">Index</a></li>
    319       </ul>
    320 
    321 <h2><a href="p3-payload.html">HTTP/1.1, part 3: Message Payload and Content Negotiation</a></h2>
    322       <ul class="toc">
    323          <li class="tocline0">1.&nbsp;&nbsp;&nbsp;<a href="p3-payload.html#introduction">Introduction</a><ul class="toc">
    324                <li class="tocline1">1.1&nbsp;&nbsp;&nbsp;<a href="p3-payload.html#intro.requirements">Requirements</a></li>
    325             </ul>
    326          </li>
    327          <li class="tocline0">2.&nbsp;&nbsp;&nbsp;<a href="p3-payload.html#protocol.parameters">Protocol Parameters</a><ul class="toc">
    328                <li class="tocline1">2.1&nbsp;&nbsp;&nbsp;<a href="p3-payload.html#character.sets">Character Sets</a><ul class="toc">
    329                      <li class="tocline1">2.1.1&nbsp;&nbsp;&nbsp;<a href="p3-payload.html#missing.charset">Missing Charset</a></li>
    330                   </ul>
    331                </li>
    332                <li class="tocline1">2.2&nbsp;&nbsp;&nbsp;<a href="p3-payload.html#content.codings">Content Codings</a></li>
    333                <li class="tocline1">2.3&nbsp;&nbsp;&nbsp;<a href="p3-payload.html#media.types">Media Types</a><ul class="toc">
    334                      <li class="tocline1">2.3.1&nbsp;&nbsp;&nbsp;<a href="p3-payload.html#canonicalization.and.text.defaults">Canonicalization and Text Defaults</a></li>
    335                      <li class="tocline1">2.3.2&nbsp;&nbsp;&nbsp;<a href="p3-payload.html#multipart.types">Multipart Types</a></li>
    336                   </ul>
    337                </li>
    338                <li class="tocline1">2.4&nbsp;&nbsp;&nbsp;<a href="p3-payload.html#quality.values">Quality Values</a></li>
    339                <li class="tocline1">2.5&nbsp;&nbsp;&nbsp;<a href="p3-payload.html#language.tags">Language Tags</a></li>
    340             </ul>
    341          </li>
    342          <li class="tocline0">3.&nbsp;&nbsp;&nbsp;<a href="p3-payload.html#entity">Entity</a><ul class="toc">
    343                <li class="tocline1">3.1&nbsp;&nbsp;&nbsp;<a href="p3-payload.html#entity.header.fields">Entity Header Fields</a></li>
    344                <li class="tocline1">3.2&nbsp;&nbsp;&nbsp;<a href="p3-payload.html#entity.body">Entity Body</a><ul class="toc">
    345                      <li class="tocline1">3.2.1&nbsp;&nbsp;&nbsp;<a href="p3-payload.html#type">Type</a></li>
    346                      <li class="tocline1">3.2.2&nbsp;&nbsp;&nbsp;<a href="p3-payload.html#entity.length">Entity Length</a></li>
    347                   </ul>
    348                </li>
    349             </ul>
    350          </li>
    351          <li class="tocline0">4.&nbsp;&nbsp;&nbsp;<a href="p3-payload.html#content.negotiation">Content Negotiation</a><ul class="toc">
    352                <li class="tocline1">4.1&nbsp;&nbsp;&nbsp;<a href="p3-payload.html#server-driven.negotiation">Server-driven Negotiation</a></li>
    353                <li class="tocline1">4.2&nbsp;&nbsp;&nbsp;<a href="p3-payload.html#agent-driven.negotiation">Agent-driven Negotiation</a></li>
    354                <li class="tocline1">4.3&nbsp;&nbsp;&nbsp;<a href="p3-payload.html#transparent.negotiation">Transparent Negotiation</a></li>
    355             </ul>
    356          </li>
    357          <li class="tocline0">5.&nbsp;&nbsp;&nbsp;<a href="p3-payload.html#header.fields">Header Field Definitions</a><ul class="toc">
    358                <li class="tocline1">5.1&nbsp;&nbsp;&nbsp;<a href="p3-payload.html#header.accept">Accept</a></li>
    359                <li class="tocline1">5.2&nbsp;&nbsp;&nbsp;<a href="p3-payload.html#header.accept-charset">Accept-Charset</a></li>
    360                <li class="tocline1">5.3&nbsp;&nbsp;&nbsp;<a href="p3-payload.html#header.accept-encoding">Accept-Encoding</a></li>
    361                <li class="tocline1">5.4&nbsp;&nbsp;&nbsp;<a href="p3-payload.html#header.accept-language">Accept-Language</a></li>
    362                <li class="tocline1">5.5&nbsp;&nbsp;&nbsp;<a href="p3-payload.html#header.content-encoding">Content-Encoding</a></li>
    363                <li class="tocline1">5.6&nbsp;&nbsp;&nbsp;<a href="p3-payload.html#header.content-language">Content-Language</a></li>
    364                <li class="tocline1">5.7&nbsp;&nbsp;&nbsp;<a href="p3-payload.html#header.content-location">Content-Location</a></li>
    365                <li class="tocline1">5.8&nbsp;&nbsp;&nbsp;<a href="p3-payload.html#header.content-md5">Content-MD5</a></li>
    366                <li class="tocline1">5.9&nbsp;&nbsp;&nbsp;<a href="p3-payload.html#header.content-type">Content-Type</a></li>
    367             </ul>
    368          </li>
    369          <li class="tocline0">6.&nbsp;&nbsp;&nbsp;<a href="p3-payload.html#IANA.considerations">IANA Considerations</a></li>
    370          <li class="tocline0">7.&nbsp;&nbsp;&nbsp;<a href="p3-payload.html#security.considerations">Security Considerations</a><ul class="toc">
    371                <li class="tocline1">7.1&nbsp;&nbsp;&nbsp;<a href="p3-payload.html#privacy.issues.connected.to.accept.headers">Privacy Issues Connected to Accept Headers</a></li>
    372                <li class="tocline1">7.2&nbsp;&nbsp;&nbsp;<a href="p3-payload.html#content-disposition.issues">Content-Disposition Issues</a></li>
    373             </ul>
    374          </li>
    375          <li class="tocline0">8.&nbsp;&nbsp;&nbsp;<a href="p3-payload.html#ack">Acknowledgments</a></li>
    376          <li class="tocline0">9.&nbsp;&nbsp;&nbsp;<a href="p3-payload.html#rfc.references">References</a><ul class="toc">
    377                <li class="tocline1">9.1&nbsp;&nbsp;&nbsp;<a href="p3-payload.html#rfc.references.1">Normative References</a></li>
    378                <li class="tocline1">9.2&nbsp;&nbsp;&nbsp;<a href="p3-payload.html#rfc.references.2">Informative References</a></li>
    379             </ul>
    380          </li>
    381          <li class="tocline0"><a href="p3-payload.html#rfc.authors">Authors' Addresses</a></li>
    382          <li class="tocline0">A.&nbsp;&nbsp;&nbsp;<a href="p3-payload.html#differences.between.http.entities.and.rfc.2045.entities">Differences Between HTTP Entities and RFC 2045 Entities</a><ul class="toc">
    383                <li class="tocline1">A.1&nbsp;&nbsp;&nbsp;<a href="p3-payload.html#mime-version">MIME-Version</a></li>
    384                <li class="tocline1">A.2&nbsp;&nbsp;&nbsp;<a href="p3-payload.html#conversion.to.canonical.form">Conversion to Canonical Form</a></li>
    385                <li class="tocline1">A.3&nbsp;&nbsp;&nbsp;<a href="p3-payload.html#introduction.of.content-encoding">Introduction of Content-Encoding</a></li>
    386                <li class="tocline1">A.4&nbsp;&nbsp;&nbsp;<a href="p3-payload.html#no.content-transfer-encoding">No Content-Transfer-Encoding</a></li>
    387                <li class="tocline1">A.5&nbsp;&nbsp;&nbsp;<a href="p3-payload.html#introduction.of.transfer-encoding">Introduction of Transfer-Encoding</a></li>
    388                <li class="tocline1">A.6&nbsp;&nbsp;&nbsp;<a href="p3-payload.html#mhtml.line.length">MHTML and Line Length Limitations</a></li>
    389             </ul>
    390          </li>
    391          <li class="tocline0">B.&nbsp;&nbsp;&nbsp;<a href="p3-payload.html#additional.features">Additional Features</a><ul class="toc">
    392                <li class="tocline1">B.1&nbsp;&nbsp;&nbsp;<a href="p3-payload.html#content-disposition">Content-Disposition</a></li>
    393             </ul>
    394          </li>
    395          <li class="tocline0">C.&nbsp;&nbsp;&nbsp;<a href="p3-payload.html#compatibility">Compatibility with Previous Versions</a><ul class="toc">
    396                <li class="tocline1">C.1&nbsp;&nbsp;&nbsp;<a href="p3-payload.html#changes.from.rfc.2068">Changes from RFC 2068</a></li>
    397                <li class="tocline1">C.2&nbsp;&nbsp;&nbsp;<a href="p3-payload.html#changes.from.rfc.2616">Changes from RFC 2616</a></li>
    398             </ul>
    399          </li>
    400          <li class="tocline0">D.&nbsp;&nbsp;&nbsp;<a href="p3-payload.html#rfc.section.D">Change Log (to be removed by RFC Editor before publication)</a><ul class="toc">
    401                <li class="tocline1">D.1&nbsp;&nbsp;&nbsp;<a href="p3-payload.html#rfc.section.D.1">Since RFC2616</a></li>
    402                <li class="tocline1">D.2&nbsp;&nbsp;&nbsp;<a href="p3-payload.html#rfc.section.D.2">Since draft-ietf-httpbis-p3-payload-00</a></li>
    403                <li class="tocline1">D.3&nbsp;&nbsp;&nbsp;<a href="p3-payload.html#rfc.section.D.3">Since draft-ietf-httpbis-p3-payload-01</a></li>
    404             </ul>
    405          </li>
    406          <li class="tocline0"><a href="p3-payload.html#rfc.ipr">Intellectual Property and Copyright Statements</a></li>
    407          <li class="tocline0"><a href="p3-payload.html#rfc.index">Index</a></li>
    408       </ul>
    409 
    410 <h2><a href="p4-conditional.html">HTTP/1.1, part 4: Conditional Requests</a></h2>
    411       <ul class="toc">
    412          <li class="tocline0">1.&nbsp;&nbsp;&nbsp;<a href="p4-conditional.html#introduction">Introduction</a><ul class="toc">
    413                <li class="tocline1">1.1&nbsp;&nbsp;&nbsp;<a href="p4-conditional.html#intro.requirements">Requirements</a></li>
    414             </ul>
    415          </li>
    416          <li class="tocline0">2.&nbsp;&nbsp;&nbsp;<a href="p4-conditional.html#entity.tags">Entity Tags</a></li>
    417          <li class="tocline0">3.&nbsp;&nbsp;&nbsp;<a href="p4-conditional.html#rfc.section.3">Status Code Definitions</a><ul class="toc">
    418                <li class="tocline1">3.1&nbsp;&nbsp;&nbsp;<a href="p4-conditional.html#status.304">304 Not Modified</a></li>
    419                <li class="tocline1">3.2&nbsp;&nbsp;&nbsp;<a href="p4-conditional.html#status.412">412 Precondition Failed</a></li>
    420             </ul>
    421          </li>
    422          <li class="tocline0">4.&nbsp;&nbsp;&nbsp;<a href="p4-conditional.html#weak.and.strong.validators">Weak and Strong Validators</a></li>
    423          <li class="tocline0">5.&nbsp;&nbsp;&nbsp;<a href="p4-conditional.html#rules.for.when.to.use.entity.tags.and.last-modified.dates">Rules for When to Use Entity Tags and Last-Modified Dates</a></li>
    424          <li class="tocline0">6.&nbsp;&nbsp;&nbsp;<a href="p4-conditional.html#header.fields">Header Field Definitions</a><ul class="toc">
    425                <li class="tocline1">6.1&nbsp;&nbsp;&nbsp;<a href="p4-conditional.html#header.etag">ETag</a></li>
    426                <li class="tocline1">6.2&nbsp;&nbsp;&nbsp;<a href="p4-conditional.html#header.if-match">If-Match</a></li>
    427                <li class="tocline1">6.3&nbsp;&nbsp;&nbsp;<a href="p4-conditional.html#header.if-modified-since">If-Modified-Since</a></li>
    428                <li class="tocline1">6.4&nbsp;&nbsp;&nbsp;<a href="p4-conditional.html#header.if-none-match">If-None-Match</a></li>
    429                <li class="tocline1">6.5&nbsp;&nbsp;&nbsp;<a href="p4-conditional.html#header.if-unmodified-since">If-Unmodified-Since</a></li>
    430                <li class="tocline1">6.6&nbsp;&nbsp;&nbsp;<a href="p4-conditional.html#header.last-modified">Last-Modified</a></li>
    431             </ul>
    432          </li>
    433          <li class="tocline0">7.&nbsp;&nbsp;&nbsp;<a href="p4-conditional.html#IANA.considerations">IANA Considerations</a></li>
    434          <li class="tocline0">8.&nbsp;&nbsp;&nbsp;<a href="p4-conditional.html#security.considerations">Security Considerations</a></li>
    435          <li class="tocline0">9.&nbsp;&nbsp;&nbsp;<a href="p4-conditional.html#ack">Acknowledgments</a></li>
    436          <li class="tocline0">10.&nbsp;&nbsp;&nbsp;<a href="p4-conditional.html#rfc.references">References</a><ul class="toc">
    437                <li class="tocline1">10.1&nbsp;&nbsp;&nbsp;<a href="p4-conditional.html#rfc.references.1">Normative References</a></li>
    438                <li class="tocline1">10.2&nbsp;&nbsp;&nbsp;<a href="p4-conditional.html#rfc.references.2">Informative References</a></li>
    439             </ul>
    440          </li>
    441          <li class="tocline0"><a href="p4-conditional.html#rfc.authors">Authors' Addresses</a></li>
    442          <li class="tocline0">A.&nbsp;&nbsp;&nbsp;<a href="p4-conditional.html#compatibility">Compatibility with Previous Versions</a><ul class="toc">
    443                <li class="tocline1">A.1&nbsp;&nbsp;&nbsp;<a href="p4-conditional.html#changes.from.rfc.2616">Changes from RFC 2616</a></li>
    444             </ul>
    445          </li>
    446          <li class="tocline0">B.&nbsp;&nbsp;&nbsp;<a href="p4-conditional.html#rfc.section.B">Change Log (to be removed by RFC Editor before publication)</a><ul class="toc">
    447                <li class="tocline1">B.1&nbsp;&nbsp;&nbsp;<a href="p4-conditional.html#rfc.section.B.1">Since RFC2616</a></li>
    448                <li class="tocline1">B.2&nbsp;&nbsp;&nbsp;<a href="p4-conditional.html#rfc.section.B.2">Since draft-ietf-httpbis-p4-conditional-00</a></li>
    449                <li class="tocline1">B.3&nbsp;&nbsp;&nbsp;<a href="p4-conditional.html#rfc.section.B.3">Since draft-ietf-httpbis-p4-conditional-01</a></li>
    450             </ul>
    451          </li>
    452          <li class="tocline0"><a href="p4-conditional.html#rfc.ipr">Intellectual Property and Copyright Statements</a></li>
    453          <li class="tocline0"><a href="p4-conditional.html#rfc.index">Index</a></li>
    454       </ul>
    455 
    456 <h2><a href="p5-range.html">HTTP/1.1, part 5: Range Requests and Partial Responses</a></h2>
    457       <ul class="toc">
    458          <li class="tocline0">1.&nbsp;&nbsp;&nbsp;<a href="p5-range.html#introduction">Introduction</a><ul class="toc">
    459                <li class="tocline1">1.1&nbsp;&nbsp;&nbsp;<a href="p5-range.html#intro.requirements">Requirements</a></li>
    460             </ul>
    461          </li>
    462          <li class="tocline0">2.&nbsp;&nbsp;&nbsp;<a href="p5-range.html#range.units">Range Units</a></li>
    463          <li class="tocline0">3.&nbsp;&nbsp;&nbsp;<a href="p5-range.html#rfc.section.3">Status Code Definitions</a><ul class="toc">
    464                <li class="tocline1">3.1&nbsp;&nbsp;&nbsp;<a href="p5-range.html#status.206">206 Partial Content</a></li>
    465                <li class="tocline1">3.2&nbsp;&nbsp;&nbsp;<a href="p5-range.html#status.416">416 Requested Range Not Satisfiable</a></li>
    466             </ul>
    467          </li>
    468          <li class="tocline0">4.&nbsp;&nbsp;&nbsp;<a href="p5-range.html#combining.byte.ranges">Combining Byte Ranges</a></li>
    469          <li class="tocline0">5.&nbsp;&nbsp;&nbsp;<a href="p5-range.html#header.fields">Header Field Definitions</a><ul class="toc">
    470                <li class="tocline1">5.1&nbsp;&nbsp;&nbsp;<a href="p5-range.html#header.accept-ranges">Accept-Ranges</a></li>
    471                <li class="tocline1">5.2&nbsp;&nbsp;&nbsp;<a href="p5-range.html#header.content-range">Content-Range</a></li>
    472                <li class="tocline1">5.3&nbsp;&nbsp;&nbsp;<a href="p5-range.html#header.if-range">If-Range</a></li>
    473                <li class="tocline1">5.4&nbsp;&nbsp;&nbsp;<a href="p5-range.html#header.range">Range</a><ul class="toc">
    474                      <li class="tocline1">5.4.1&nbsp;&nbsp;&nbsp;<a href="p5-range.html#byte.ranges">Byte Ranges</a></li>
    475                      <li class="tocline1">5.4.2&nbsp;&nbsp;&nbsp;<a href="p5-range.html#range.retrieval.requests">Range Retrieval Requests</a></li>
    476                   </ul>
    477                </li>
    478             </ul>
    479          </li>
    480          <li class="tocline0">6.&nbsp;&nbsp;&nbsp;<a href="p5-range.html#IANA.considerations">IANA Considerations</a></li>
    481          <li class="tocline0">7.&nbsp;&nbsp;&nbsp;<a href="p5-range.html#security.considerations">Security Considerations</a></li>
    482          <li class="tocline0">8.&nbsp;&nbsp;&nbsp;<a href="p5-range.html#ack">Acknowledgments</a></li>
    483          <li class="tocline0">9.&nbsp;&nbsp;&nbsp;<a href="p5-range.html#rfc.references">References</a><ul class="toc">
    484                <li class="tocline1">9.1&nbsp;&nbsp;&nbsp;<a href="p5-range.html#rfc.references.1">Normative References</a></li>
    485                <li class="tocline1">9.2&nbsp;&nbsp;&nbsp;<a href="p5-range.html#rfc.references.2">Informative References</a></li>
    486             </ul>
    487          </li>
    488          <li class="tocline0"><a href="p5-range.html#rfc.authors">Authors' Addresses</a></li>
    489          <li class="tocline0">A.&nbsp;&nbsp;&nbsp;<a href="p5-range.html#internet.media.type.multipart.byteranges">Internet Media Type multipart/byteranges</a></li>
    490          <li class="tocline0">B.&nbsp;&nbsp;&nbsp;<a href="p5-range.html#compatibility">Compatibility with Previous Versions</a><ul class="toc">
    491                <li class="tocline1">B.1&nbsp;&nbsp;&nbsp;<a href="p5-range.html#changes.from.rfc.2068">Changes from RFC 2068</a></li>
    492                <li class="tocline1">B.2&nbsp;&nbsp;&nbsp;<a href="p5-range.html#changes.from.rfc.2616">Changes from RFC 2616</a></li>
    493             </ul>
    494          </li>
    495          <li class="tocline0">C.&nbsp;&nbsp;&nbsp;<a href="p5-range.html#rfc.section.C">Change Log (to be removed by RFC Editor before publication)</a><ul class="toc">
    496                <li class="tocline1">C.1&nbsp;&nbsp;&nbsp;<a href="p5-range.html#rfc.section.C.1">Since RFC2616</a></li>
    497                <li class="tocline1">C.2&nbsp;&nbsp;&nbsp;<a href="p5-range.html#rfc.section.C.2">Since draft-ietf-httpbis-p5-range-00</a></li>
    498                <li class="tocline1">C.3&nbsp;&nbsp;&nbsp;<a href="p5-range.html#rfc.section.C.3">Since draft-ietf-httpbis-p5-range-01</a></li>
    499             </ul>
    500          </li>
    501          <li class="tocline0"><a href="p5-range.html#rfc.ipr">Intellectual Property and Copyright Statements</a></li>
    502          <li class="tocline0"><a href="p5-range.html#rfc.index">Index</a></li>
    503       </ul>
    504 
    505 <h2><a href="p6-cache.html">HTTP/1.1, part 6: Caching</a></h2>
    506       <ul class="toc">
    507          <li class="tocline0">1.&nbsp;&nbsp;&nbsp;<a href="p6-cache.html#caching">Introduction</a><ul class="toc">
    508                <li class="tocline1">1.1&nbsp;&nbsp;&nbsp;<a href="p6-cache.html#intro.purpose">Purpose</a></li>
    509                <li class="tocline1">1.2&nbsp;&nbsp;&nbsp;<a href="p6-cache.html#intro.terminology">Terminology</a></li>
    510                <li class="tocline1">1.3&nbsp;&nbsp;&nbsp;<a href="p6-cache.html#intro.requirements">Requirements</a></li>
    511             </ul>
    512          </li>
    513          <li class="tocline0">2.&nbsp;&nbsp;&nbsp;<a href="p6-cache.html#caching.overview">Overview</a><ul class="toc">
    514                <li class="tocline1">2.1&nbsp;&nbsp;&nbsp;<a href="p6-cache.html#cache.correctness">Cache Correctness</a></li>
    515                <li class="tocline1">2.2&nbsp;&nbsp;&nbsp;<a href="p6-cache.html#warnings">Warnings</a></li>
    516                <li class="tocline1">2.3&nbsp;&nbsp;&nbsp;<a href="p6-cache.html#cache-control.mechanisms">Cache-control Mechanisms</a></li>
    517                <li class="tocline1">2.4&nbsp;&nbsp;&nbsp;<a href="p6-cache.html#explicit.ua.warnings">Explicit User Agent Warnings</a></li>
    518                <li class="tocline1">2.5&nbsp;&nbsp;&nbsp;<a href="p6-cache.html#exceptions.to.the.rules.and.warnings">Exceptions to the Rules and Warnings</a></li>
    519                <li class="tocline1">2.6&nbsp;&nbsp;&nbsp;<a href="p6-cache.html#client-controlled.behavior">Client-controlled Behavior</a></li>
    520             </ul>
    521          </li>
    522          <li class="tocline0">3.&nbsp;&nbsp;&nbsp;<a href="p6-cache.html#expiration.model">Expiration Model</a><ul class="toc">
    523                <li class="tocline1">3.1&nbsp;&nbsp;&nbsp;<a href="p6-cache.html#server-specified.expiration">Server-Specified Expiration</a></li>
    524                <li class="tocline1">3.2&nbsp;&nbsp;&nbsp;<a href="p6-cache.html#heuristic.expiration">Heuristic Expiration</a></li>
    525                <li class="tocline1">3.3&nbsp;&nbsp;&nbsp;<a href="p6-cache.html#age.calculations">Age Calculations</a></li>
    526                <li class="tocline1">3.4&nbsp;&nbsp;&nbsp;<a href="p6-cache.html#expiration.calculations">Expiration Calculations</a></li>
    527                <li class="tocline1">3.5&nbsp;&nbsp;&nbsp;<a href="p6-cache.html#disambiguating.expiration.values">Disambiguating Expiration Values</a></li>
    528                <li class="tocline1">3.6&nbsp;&nbsp;&nbsp;<a href="p6-cache.html#disambiguating.multiple.responses">Disambiguating Multiple Responses</a></li>
    529             </ul>
    530          </li>
    531          <li class="tocline0">4.&nbsp;&nbsp;&nbsp;<a href="p6-cache.html#validation.model">Validation Model</a></li>
    532          <li class="tocline0">5.&nbsp;&nbsp;&nbsp;<a href="p6-cache.html#response.cacheability">Response Cacheability</a></li>
    533          <li class="tocline0">6.&nbsp;&nbsp;&nbsp;<a href="p6-cache.html#constructing.responses.from.caches">Constructing Responses From Caches</a><ul class="toc">
    534                <li class="tocline1">6.1&nbsp;&nbsp;&nbsp;<a href="p6-cache.html#end-to-end.and.hop-by-hop.headers">End-to-end and Hop-by-hop Headers</a></li>
    535                <li class="tocline1">6.2&nbsp;&nbsp;&nbsp;<a href="p6-cache.html#non-modifiable.headers">Non-modifiable Headers</a></li>
    536                <li class="tocline1">6.3&nbsp;&nbsp;&nbsp;<a href="p6-cache.html#combining.headers">Combining Headers</a></li>
    537             </ul>
    538          </li>
    539          <li class="tocline0">7.&nbsp;&nbsp;&nbsp;<a href="p6-cache.html#caching.negotiated.responses">Caching Negotiated Responses</a></li>
    540          <li class="tocline0">8.&nbsp;&nbsp;&nbsp;<a href="p6-cache.html#shared.and.non-shared.caches">Shared and Non-Shared Caches</a></li>
    541          <li class="tocline0">9.&nbsp;&nbsp;&nbsp;<a href="p6-cache.html#errors.or.incomplete.response.cache.behavior">Errors or Incomplete Response Cache Behavior</a></li>
    542          <li class="tocline0">10.&nbsp;&nbsp;&nbsp;<a href="p6-cache.html#side.effects.of.get.and.head">Side Effects of GET and HEAD</a></li>
    543          <li class="tocline0">11.&nbsp;&nbsp;&nbsp;<a href="p6-cache.html#invalidation.after.updates.or.deletions">Invalidation After Updates or Deletions</a></li>
    544          <li class="tocline0">12.&nbsp;&nbsp;&nbsp;<a href="p6-cache.html#write-through.mandatory">Write-Through Mandatory</a></li>
    545          <li class="tocline0">13.&nbsp;&nbsp;&nbsp;<a href="p6-cache.html#cache.replacement">Cache Replacement</a></li>
    546          <li class="tocline0">14.&nbsp;&nbsp;&nbsp;<a href="p6-cache.html#history.lists">History Lists</a></li>
    547          <li class="tocline0">15.&nbsp;&nbsp;&nbsp;<a href="p6-cache.html#header.fields">Header Field Definitions</a><ul class="toc">
    548                <li class="tocline1">15.1&nbsp;&nbsp;&nbsp;<a href="p6-cache.html#header.age">Age</a></li>
    549                <li class="tocline1">15.2&nbsp;&nbsp;&nbsp;<a href="p6-cache.html#header.cache-control">Cache-Control</a><ul class="toc">
    550                      <li class="tocline1">15.2.1&nbsp;&nbsp;&nbsp;<a href="p6-cache.html#what.is.cacheable">What is Cacheable</a></li>
    551                      <li class="tocline1">15.2.2&nbsp;&nbsp;&nbsp;<a href="p6-cache.html#what.may.be.stored.by.caches">What May be Stored by Caches</a></li>
    552                      <li class="tocline1">15.2.3&nbsp;&nbsp;&nbsp;<a href="p6-cache.html#modifications.of.the.basic.expiration.mechanism">Modifications of the Basic Expiration Mechanism</a></li>
    553                      <li class="tocline1">15.2.4&nbsp;&nbsp;&nbsp;<a href="p6-cache.html#cache.revalidation.and.reload.controls">Cache Revalidation and Reload Controls</a></li>
    554                      <li class="tocline1">15.2.5&nbsp;&nbsp;&nbsp;<a href="p6-cache.html#no-transform.directive">No-Transform Directive</a></li>
    555                      <li class="tocline1">15.2.6&nbsp;&nbsp;&nbsp;<a href="p6-cache.html#cache.control.extensions">Cache Control Extensions</a></li>
    556                   </ul>
    557                </li>
    558                <li class="tocline1">15.3&nbsp;&nbsp;&nbsp;<a href="p6-cache.html#header.expires">Expires</a></li>
    559                <li class="tocline1">15.4&nbsp;&nbsp;&nbsp;<a href="p6-cache.html#header.pragma">Pragma</a></li>
    560                <li class="tocline1">15.5&nbsp;&nbsp;&nbsp;<a href="p6-cache.html#header.vary">Vary</a></li>
    561                <li class="tocline1">15.6&nbsp;&nbsp;&nbsp;<a href="p6-cache.html#header.warning">Warning</a></li>
    562             </ul>
    563          </li>
    564          <li class="tocline0">16.&nbsp;&nbsp;&nbsp;<a href="p6-cache.html#IANA.considerations">IANA Considerations</a></li>
    565          <li class="tocline0">17.&nbsp;&nbsp;&nbsp;<a href="p6-cache.html#security.considerations">Security Considerations</a></li>
    566          <li class="tocline0">18.&nbsp;&nbsp;&nbsp;<a href="p6-cache.html#ack">Acknowledgments</a></li>
    567          <li class="tocline0">19.&nbsp;&nbsp;&nbsp;<a href="p6-cache.html#rfc.references">References</a><ul class="toc">
    568                <li class="tocline1">19.1&nbsp;&nbsp;&nbsp;<a href="p6-cache.html#rfc.references.1">Normative References</a></li>
    569                <li class="tocline1">19.2&nbsp;&nbsp;&nbsp;<a href="p6-cache.html#rfc.references.2">Informative References</a></li>
    570             </ul>
    571          </li>
    572          <li class="tocline0"><a href="p6-cache.html#rfc.authors">Authors' Addresses</a></li>
    573          <li class="tocline0">A.&nbsp;&nbsp;&nbsp;<a href="p6-cache.html#compatibility">Compatibility with Previous Versions</a><ul class="toc">
    574                <li class="tocline1">A.1&nbsp;&nbsp;&nbsp;<a href="p6-cache.html#changes.from.rfc.2068">Changes from RFC 2068</a></li>
    575                <li class="tocline1">A.2&nbsp;&nbsp;&nbsp;<a href="p6-cache.html#changes.from.rfc.2616">Changes from RFC 2616</a></li>
    576             </ul>
    577          </li>
    578          <li class="tocline0">B.&nbsp;&nbsp;&nbsp;<a href="p6-cache.html#rfc.section.B">Change Log (to be removed by RFC Editor before publication)</a><ul class="toc">
    579                <li class="tocline1">B.1&nbsp;&nbsp;&nbsp;<a href="p6-cache.html#rfc.section.B.1">Since RFC2616</a></li>
    580                <li class="tocline1">B.2&nbsp;&nbsp;&nbsp;<a href="p6-cache.html#rfc.section.B.2">Since draft-ietf-httpbis-p6-cache-00</a></li>
    581                <li class="tocline1">B.3&nbsp;&nbsp;&nbsp;<a href="p6-cache.html#rfc.section.B.3">Since draft-ietf-httpbis-p6-cache-01</a></li>
    582             </ul>
    583          </li>
    584          <li class="tocline0"><a href="p6-cache.html#rfc.ipr">Intellectual Property and Copyright Statements</a></li>
    585          <li class="tocline0"><a href="p6-cache.html#rfc.index">Index</a></li>
    586       </ul>
    587 
    588 <h2><a href="p7-auth.html">HTTP/1.1, part 7: Authentication</a></h2>
    589       <ul class="toc">
    590          <li class="tocline0">1.&nbsp;&nbsp;&nbsp;<a href="p7-auth.html#introduction">Introduction</a><ul class="toc">
    591                <li class="tocline1">1.1&nbsp;&nbsp;&nbsp;<a href="p7-auth.html#intro.requirements">Requirements</a></li>
    592             </ul>
    593          </li>
    594          <li class="tocline0">2.&nbsp;&nbsp;&nbsp;<a href="p7-auth.html#rfc.section.2">Status Code Definitions</a><ul class="toc">
    595                <li class="tocline1">2.1&nbsp;&nbsp;&nbsp;<a href="p7-auth.html#status.401">401 Unauthorized</a></li>
    596                <li class="tocline1">2.2&nbsp;&nbsp;&nbsp;<a href="p7-auth.html#status.407">407 Proxy Authentication Required</a></li>
    597             </ul>
    598          </li>
    599          <li class="tocline0">3.&nbsp;&nbsp;&nbsp;<a href="p7-auth.html#header.fields">Header Field Definitions</a><ul class="toc">
    600                <li class="tocline1">3.1&nbsp;&nbsp;&nbsp;<a href="p7-auth.html#header.authorization">Authorization</a></li>
    601                <li class="tocline1">3.2&nbsp;&nbsp;&nbsp;<a href="p7-auth.html#header.proxy-authenticate">Proxy-Authenticate</a></li>
    602                <li class="tocline1">3.3&nbsp;&nbsp;&nbsp;<a href="p7-auth.html#header.proxy-authorization">Proxy-Authorization</a></li>
    603                <li class="tocline1">3.4&nbsp;&nbsp;&nbsp;<a href="p7-auth.html#header.www-authenticate">WWW-Authenticate</a></li>
    604             </ul>
    605          </li>
    606          <li class="tocline0">4.&nbsp;&nbsp;&nbsp;<a href="p7-auth.html#IANA.considerations">IANA Considerations</a></li>
    607          <li class="tocline0">5.&nbsp;&nbsp;&nbsp;<a href="p7-auth.html#security.considerations">Security Considerations</a><ul class="toc">
    608                <li class="tocline1">5.1&nbsp;&nbsp;&nbsp;<a href="p7-auth.html#auth.credentials.and.idle.clients">Authentication Credentials and Idle Clients</a></li>
    609             </ul>
    610          </li>
    611          <li class="tocline0">6.&nbsp;&nbsp;&nbsp;<a href="p7-auth.html#ack">Acknowledgments</a></li>
    612          <li class="tocline0">7.&nbsp;&nbsp;&nbsp;<a href="p7-auth.html#rfc.references">References</a><ul class="toc">
    613                <li class="tocline1">7.1&nbsp;&nbsp;&nbsp;<a href="p7-auth.html#rfc.references.1">Normative References</a></li>
    614                <li class="tocline1">7.2&nbsp;&nbsp;&nbsp;<a href="p7-auth.html#rfc.references.2">Informative References</a></li>
    615             </ul>
    616          </li>
    617          <li class="tocline0"><a href="p7-auth.html#rfc.authors">Authors' Addresses</a></li>
    618          <li class="tocline0">A.&nbsp;&nbsp;&nbsp;<a href="p7-auth.html#compatibility">Compatibility with Previous Versions</a><ul class="toc">
    619                <li class="tocline1">A.1&nbsp;&nbsp;&nbsp;<a href="p7-auth.html#changes.from.rfc.2616">Changes from RFC 2616</a></li>
    620             </ul>
    621          </li>
    622          <li class="tocline0">B.&nbsp;&nbsp;&nbsp;<a href="p7-auth.html#rfc.section.B">Change Log (to be removed by RFC Editor before publication)</a><ul class="toc">
    623                <li class="tocline1">B.1&nbsp;&nbsp;&nbsp;<a href="p7-auth.html#rfc.section.B.1">Since RFC2616</a></li>
    624                <li class="tocline1">B.2&nbsp;&nbsp;&nbsp;<a href="p7-auth.html#rfc.section.B.2">Since draft-ietf-httpbis-p7-auth-00</a></li>
    625                <li class="tocline1">B.3&nbsp;&nbsp;&nbsp;<a href="p7-auth.html#rfc.section.B.3">Since draft-ietf-httpbis-p7-auth-01</a></li>
    626             </ul>
    627          </li>
    628          <li class="tocline0"><a href="p7-auth.html#rfc.ipr">Intellectual Property and Copyright Statements</a></li>
    629          <li class="tocline0"><a href="p7-auth.html#rfc.index">Index</a></li>
    630       </ul>
    631 <!-- ZZZZZZZ -->
    632    </div>
    633 </div>
    634630   </body>
    635631</html>

  • draft-ietf-httpbis/latest/p1-messaging.html

    r204 r205  
    690690      <dl class="empty">
    691691         <dd>The information transferred as the payload of a request or response. An entity consists of metainformation in the form of
    692             entity-header fields and content in the form of an entity-body, as described in <a href="p3-payload.html#entity" title="Entity">Section 3</a> of <a href="#Part3" id="rfc.xref.Part3.1"><cite title="HTTP/1.1, part 3: Message Payload and Content Negotiation">[Part3]</cite></a>.
     692            entity-header fields and content in the form of an entity-body, as described in <a href="p3-payload.html#entity" title="Entity">Section 4</a> of <a href="#Part3" id="rfc.xref.Part3.1"><cite title="HTTP/1.1, part 3: Message Payload and Content Negotiation">[Part3]</cite></a>.
    693693         </dd>
    694694      </dl>
    … …  
    696696      </p>
    697697      <dl class="empty">
    698          <dd>An entity included with a response that is subject to content negotiation, as described in <a href="p3-payload.html#content.negotiation" title="Content Negotiation">Section 4</a> of <a href="#Part3" id="rfc.xref.Part3.2"><cite title="HTTP/1.1, part 3: Message Payload and Content Negotiation">[Part3]</cite></a>. There may exist multiple representations associated with a particular response status.
     698         <dd>An entity included with a response that is subject to content negotiation, as described in <a href="p3-payload.html#content.negotiation" title="Content Negotiation">Section 5</a> of <a href="#Part3" id="rfc.xref.Part3.2"><cite title="HTTP/1.1, part 3: Message Payload and Content Negotiation">[Part3]</cite></a>. There may exist multiple representations associated with a particular response status.
    699699         </dd>
    700700      </dl>
    … …  
    702702      </p>
    703703      <dl class="empty">
    704          <dd>The mechanism for selecting the appropriate representation when servicing a request, as described in <a href="p3-payload.html#content.negotiation" title="Content Negotiation">Section 4</a> of <a href="#Part3" id="rfc.xref.Part3.3"><cite title="HTTP/1.1, part 3: Message Payload and Content Negotiation">[Part3]</cite></a>. The representation of entities in any response can be negotiated (including error responses).
     704         <dd>The mechanism for selecting the appropriate representation when servicing a request, as described in <a href="p3-payload.html#content.negotiation" title="Content Negotiation">Section 5</a> of <a href="#Part3" id="rfc.xref.Part3.3"><cite title="HTTP/1.1, part 3: Message Payload and Content Negotiation">[Part3]</cite></a>. The representation of entities in any response can be negotiated (including error responses).
    705705         </dd>
    706706      </dl>
    … …  
    949949                   ; US-ASCII double-quote mark (34)
    950950</pre><p id="rfc.section.2.2.p.3">HTTP/1.1 defines the sequence CR LF as the end-of-line marker for all protocol elements except the entity-body (see <a href="#tolerant.applications" title="Tolerant Applications">Appendix&nbsp;B</a> for tolerant applications). The end-of-line marker within an entity-body is defined by its associated media type, as described
    951          in <a href="p3-payload.html#media.types" title="Media Types">Section 2.3</a> of <a href="#Part3" id="rfc.xref.Part3.5"><cite title="HTTP/1.1, part 3: Message Payload and Content Negotiation">[Part3]</cite></a>.
     951         in <a href="p3-payload.html#media.types" title="Media Types">Section 3.3</a> of <a href="#Part3" id="rfc.xref.Part3.5"><cite title="HTTP/1.1, part 3: Message Payload and Content Negotiation">[Part3]</cite></a>.
    952952      </p>
    953953      <div id="rfc.figure.u.5"></div><pre class="inline"><span id="rfc.iref.g.12"></span>  CRLF           = CR LF
    … …  
    10331033  relativeURI   = &lt;relativeURI, defined in <a href="#RFC2396" id="rfc.xref.RFC2396.7"><cite title="Uniform Resource Identifiers (URI): Generic Syntax">[RFC2396]</cite></a>, <a href="http://tools.ietf.org/html/rfc2396#section-5">Section 5</a>&gt;
    10341034  uri-host      = &lt;host, defined in <a href="#RFC2396" id="rfc.xref.RFC2396.8"><cite title="Uniform Resource Identifiers (URI): Generic Syntax">[RFC2396]</cite></a>, <a href="http://tools.ietf.org/html/rfc2396#section-3.2.2">Section 3.2.2</a>&gt;
    1035 </pre><p id="rfc.section.3.2.1.p.3">HTTP does not place any a priori limit on the length of a URI. Servers <em class="bcp14">MUST</em> be able to handle the URI of any resource they serve, and <em class="bcp14">SHOULD</em> be able to handle URIs of unbounded length if they provide GET-based forms that could generate such URIs. A server <em class="bcp14">SHOULD</em> return 414 (Request-URI Too Long) status if a URI is longer than the server can handle (see <a href="p2-semantics.html#status.414" title="414 Request-URI Too Long">Section 8.4.15</a> of <a href="#Part2" id="rfc.xref.Part2.1"><cite title="HTTP/1.1, part 2: Message Semantics">[Part2]</cite></a>).
     1035</pre><p id="rfc.section.3.2.1.p.3">HTTP does not place any a priori limit on the length of a URI. Servers <em class="bcp14">MUST</em> be able to handle the URI of any resource they serve, and <em class="bcp14">SHOULD</em> be able to handle URIs of unbounded length if they provide GET-based forms that could generate such URIs. A server <em class="bcp14">SHOULD</em> return 414 (Request-URI Too Long) status if a URI is longer than the server can handle (see <a href="p2-semantics.html#status.414" title="414 Request-URI Too Long">Section 9.4.15</a> of <a href="#Part2" id="rfc.xref.Part2.1"><cite title="HTTP/1.1, part 2: Message Semantics">[Part2]</cite></a>).
    10361036      </p>
    10371037      <p id="rfc.section.3.2.1.p.4"> </p>
    … …  
    11291129      </p>
    11301130      <p id="rfc.section.3.4.p.8">The Internet Assigned Numbers Authority (IANA) acts as a registry for transfer-coding value tokens. Initially, the registry
    1131          contains the following tokens: "chunked" (<a href="#chunked.transfer.encoding" title="Chunked Transfer Coding">Section&nbsp;3.4.1</a>), "gzip", "compress", and "deflate" (<a href="p3-payload.html#content.codings" title="Content Codings">Section 2.2</a> of <a href="#Part3" id="rfc.xref.Part3.6"><cite title="HTTP/1.1, part 3: Message Payload and Content Negotiation">[Part3]</cite></a>).
    1132       </p>
    1133       <p id="rfc.section.3.4.p.9">New transfer-coding value tokens <em class="bcp14">SHOULD</em> be registered in the same way as new content-coding value tokens (<a href="p3-payload.html#content.codings" title="Content Codings">Section 2.2</a> of <a href="#Part3" id="rfc.xref.Part3.7"><cite title="HTTP/1.1, part 3: Message Payload and Content Negotiation">[Part3]</cite></a>).
     1131         contains the following tokens: "chunked" (<a href="#chunked.transfer.encoding" title="Chunked Transfer Coding">Section&nbsp;3.4.1</a>), "gzip", "compress", and "deflate" (<a href="p3-payload.html#content.codings" title="Content Codings">Section 3.2</a> of <a href="#Part3" id="rfc.xref.Part3.6"><cite title="HTTP/1.1, part 3: Message Payload and Content Negotiation">[Part3]</cite></a>).
     1132      </p>
     1133      <p id="rfc.section.3.4.p.9">New transfer-coding value tokens <em class="bcp14">SHOULD</em> be registered in the same way as new content-coding value tokens (<a href="p3-payload.html#content.codings" title="Content Codings">Section 3.2</a> of <a href="#Part3" id="rfc.xref.Part3.7"><cite title="HTTP/1.1, part 3: Message Payload and Content Negotiation">[Part3]</cite></a>).
    11341134      </p>
    11351135      <p id="rfc.section.3.4.p.10">A server which receives an entity-body with a transfer-coding it does not understand <em class="bcp14">SHOULD</em> return 501 (Not Implemented), and close the connection. A server <em class="bcp14">MUST NOT</em> send transfer-codings to an HTTP/1.0 client.
    … …  
    12261226      </p>
    12271227      <h2 id="rfc.section.4.2"><a href="#rfc.section.4.2">4.2</a>&nbsp;<a id="message.headers" href="#message.headers">Message Headers</a></h2>
    1228       <p id="rfc.section.4.2.p.1">HTTP header fields, which include general-header (<a href="#general.header.fields" title="General Header Fields">Section&nbsp;4.5</a>), request-header (<a href="p2-semantics.html#request.header.fields" title="Request Header Fields">Section 3</a> of <a href="#Part2" id="rfc.xref.Part2.2"><cite title="HTTP/1.1, part 2: Message Semantics">[Part2]</cite></a>), response-header (<a href="p2-semantics.html#response.header.fields" title="Response Header Fields">Section 5</a> of <a href="#Part2" id="rfc.xref.Part2.3"><cite title="HTTP/1.1, part 2: Message Semantics">[Part2]</cite></a>), and entity-header (<a href="p3-payload.html#entity.header.fields" title="Entity Header Fields">Section 3.1</a> of <a href="#Part3" id="rfc.xref.Part3.8"><cite title="HTTP/1.1, part 3: Message Payload and Content Negotiation">[Part3]</cite></a>) fields, follow the same generic format as that given in <a href="http://tools.ietf.org/html/rfc2822#section-2.1">Section 2.1</a> of <a href="#RFC2822" id="rfc.xref.RFC2822.3"><cite title="Internet Message Format">[RFC2822]</cite></a>. Each header field consists of a name followed by a colon (":") and the field value. Field names are case-insensitive. The
     1228      <p id="rfc.section.4.2.p.1">HTTP header fields, which include general-header (<a href="#general.header.fields" title="General Header Fields">Section&nbsp;4.5</a>), request-header (<a href="p2-semantics.html#request.header.fields" title="Request Header Fields">Section 4</a> of <a href="#Part2" id="rfc.xref.Part2.2"><cite title="HTTP/1.1, part 2: Message Semantics">[Part2]</cite></a>), response-header (<a href="p2-semantics.html#response.header.fields" title="Response Header Fields">Section 6</a> of <a href="#Part2" id="rfc.xref.Part2.3"><cite title="HTTP/1.1, part 2: Message Semantics">[Part2]</cite></a>), and entity-header (<a href="p3-payload.html#entity.header.fields" title="Entity Header Fields">Section 4.1</a> of <a href="#Part3" id="rfc.xref.Part3.8"><cite title="HTTP/1.1, part 3: Message Payload and Content Negotiation">[Part3]</cite></a>) fields, follow the same generic format as that given in <a href="http://tools.ietf.org/html/rfc2822#section-2.1">Section 2.1</a> of <a href="#RFC2822" id="rfc.xref.RFC2822.3"><cite title="Internet Message Format">[RFC2822]</cite></a>. Each header field consists of a name followed by a colon (":") and the field value. Field names are case-insensitive. The
    12291229         field value <em class="bcp14">MAY</em> be preceded by any amount of LWS, though a single SP is preferred. Header fields can be extended over multiple lines by preceding
    12301230         each extra line with at least one SP or HTAB. Applications ought to follow "common form", where one is known or indicated,
    … …  
    12641264      <p id="rfc.section.4.3.p.4">The rules for when a message-body is allowed in a message differ for requests and responses.</p>
    12651265      <p id="rfc.section.4.3.p.5">The presence of a message-body in a request is signaled by the inclusion of a Content-Length or Transfer-Encoding header field
    1266          in the request's message-headers. A message-body <em class="bcp14">MUST NOT</em> be included in a request if the specification of the request method (<a href="p2-semantics.html#method" title="Method">Section 2</a> of <a href="#Part2" id="rfc.xref.Part2.4"><cite title="HTTP/1.1, part 2: Message Semantics">[Part2]</cite></a>) explicitly disallows an entity-body in requests. When a request message contains both a message-body of non-zero length
     1266         in the request's message-headers. A message-body <em class="bcp14">MUST NOT</em> be included in a request if the specification of the request method (<a href="p2-semantics.html#method" title="Method">Section 3</a> of <a href="#Part2" id="rfc.xref.Part2.4"><cite title="HTTP/1.1, part 2: Message Semantics">[Part2]</cite></a>) explicitly disallows an entity-body in requests. When a request message contains both a message-body of non-zero length
    12671267         and a method that does not define any semantics for that request message-body, then an origin server <em class="bcp14">SHOULD</em> either ignore the message-body or respond with an appropriate error message (e.g., 413). A proxy or gateway, when presented
    12681268         the same request, <em class="bcp14">SHOULD</em> either forward the request inbound with the message-body or ignore the message-body when determining a response.
    … …  
    13241324         to the entity being transferred. These header fields apply only to the message being transmitted.
    13251325      </p>
    1326       <div id="rfc.figure.u.29"></div><pre class="inline"><span id="rfc.iref.g.67"></span>  general-header = Cache-Control            ; <a href="#Part6" id="rfc.xref.Part6.3"><cite title="HTTP/1.1, part 6: Caching">[Part6]</cite></a>, <a href="p6-cache.html#header.cache-control" title="Cache-Control">Section 15.2</a>
     1326      <div id="rfc.figure.u.29"></div><pre class="inline"><span id="rfc.iref.g.67"></span>  general-header = Cache-Control            ; <a href="#Part6" id="rfc.xref.Part6.3"><cite title="HTTP/1.1, part 6: Caching">[Part6]</cite></a>, <a href="p6-cache.html#header.cache-control" title="Cache-Control">Section 16.2</a>
    13271327                 | Connection               ; <a href="#header.connection" id="rfc.xref.header.connection.1" title="Connection">Section&nbsp;8.1</a>
    13281328                 | Date                     ; <a href="#header.date" id="rfc.xref.header.date.1" title="Date">Section&nbsp;8.3</a>
    1329                  | Pragma                   ; <a href="#Part6" id="rfc.xref.Part6.4"><cite title="HTTP/1.1, part 6: Caching">[Part6]</cite></a>, <a href="p6-cache.html#header.pragma" title="Pragma">Section 15.4</a>
     1329                 | Pragma                   ; <a href="#Part6" id="rfc.xref.Part6.4"><cite title="HTTP/1.1, part 6: Caching">[Part6]</cite></a>, <a href="p6-cache.html#header.pragma" title="Pragma">Section 16.4</a>
    13301330                 | Trailer                  ; <a href="#header.trailer" id="rfc.xref.header.trailer.2" title="Trailer">Section&nbsp;8.6</a>
    13311331                 | Transfer-Encoding        ; <a href="#header.transfer-encoding" id="rfc.xref.header.transfer-encoding.4" title="Transfer-Encoding">Section&nbsp;8.7</a>
    13321332                 | Upgrade                  ; <a href="#header.upgrade" id="rfc.xref.header.upgrade.1" title="Upgrade">Section&nbsp;8.8</a>
    13331333                 | Via                      ; <a href="#header.via" id="rfc.xref.header.via.1" title="Via">Section&nbsp;8.9</a>
    1334                  | Warning                  ; <a href="#Part6" id="rfc.xref.Part6.5"><cite title="HTTP/1.1, part 6: Caching">[Part6]</cite></a>, <a href="p6-cache.html#header.warning" title="Warning">Section 15.6</a>
     1334                 | Warning                  ; <a href="#Part6" id="rfc.xref.Part6.5"><cite title="HTTP/1.1, part 6: Caching">[Part6]</cite></a>, <a href="p6-cache.html#header.warning" title="Warning">Section 16.6</a>
    13351335</pre><p id="rfc.section.4.5.p.3">General-header field names can be extended reliably only in combination with a change in the protocol version. However, new
    13361336         or experimental header fields may be given the semantics of general header fields if all parties in the communication recognize
    … …  
    13431343      <div id="rfc.figure.u.30"></div><pre class="inline"><span id="rfc.iref.g.68"></span>  Request       = Request-Line              ; <a href="#request-line" title="Request-Line">Section&nbsp;5.1</a>
    13441344                  *(( general-header        ; <a href="#general.header.fields" title="General Header Fields">Section&nbsp;4.5</a>
    1345                    | request-header         ; <a href="#Part2" id="rfc.xref.Part2.5"><cite title="HTTP/1.1, part 2: Message Semantics">[Part2]</cite></a>, <a href="p2-semantics.html#request.header.fields" title="Request Header Fields">Section 3</a>
    1346                    | entity-header ) CRLF)  ; <a href="#Part3" id="rfc.xref.Part3.9"><cite title="HTTP/1.1, part 3: Message Payload and Content Negotiation">[Part3]</cite></a>, <a href="p3-payload.html#entity.header.fields" title="Entity Header Fields">Section 3.1</a>
     1345                   | request-header         ; <a href="#Part2" id="rfc.xref.Part2.5"><cite title="HTTP/1.1, part 2: Message Semantics">[Part2]</cite></a>, <a href="p2-semantics.html#request.header.fields" title="Request Header Fields">Section 4</a>
     1346                   | entity-header ) CRLF)  ; <a href="#Part3" id="rfc.xref.Part3.9"><cite title="HTTP/1.1, part 3: Message Payload and Content Negotiation">[Part3]</cite></a>, <a href="p3-payload.html#entity.header.fields" title="Entity Header Fields">Section 4.1</a>
    13471347                  CRLF
    13481348                  [ message-body ]          ; <a href="#message.body" title="Message Body">Section&nbsp;4.3</a>
    … …  
    13751375</pre><p id="rfc.section.5.1.2.p.7">To allow for transition to absoluteURIs in all requests in future versions of HTTP, all HTTP/1.1 servers <em class="bcp14">MUST</em> accept the absoluteURI form in requests, even though HTTP/1.1 clients will only generate them in requests to proxies.
    13761376      </p>
    1377       <p id="rfc.section.5.1.2.p.8">The authority form is only used by the CONNECT method (<a href="p2-semantics.html#CONNECT" title="CONNECT">Section 7.9</a> of <a href="#Part2" id="rfc.xref.Part2.6"><cite title="HTTP/1.1, part 2: Message Semantics">[Part2]</cite></a>).
     1377      <p id="rfc.section.5.1.2.p.8">The authority form is only used by the CONNECT method (<a href="p2-semantics.html#CONNECT" title="CONNECT">Section 8.9</a> of <a href="#Part2" id="rfc.xref.Part2.6"><cite title="HTTP/1.1, part 2: Message Semantics">[Part2]</cite></a>).
    13781378      </p>
    13791379      <p id="rfc.section.5.1.2.p.9">The most common form of Request-URI is that used to identify a resource on an origin server or gateway. In this case the absolute
    … …  
    14211421      <div id="rfc.figure.u.37"></div><pre class="inline"><span id="rfc.iref.g.73"></span>  Response      = Status-Line               ; <a href="#status-line" title="Status-Line">Section&nbsp;6.1</a>
    14221422                  *(( general-header        ; <a href="#general.header.fields" title="General Header Fields">Section&nbsp;4.5</a>
    1423                    | response-header        ; <a href="#Part2" id="rfc.xref.Part2.7"><cite title="HTTP/1.1, part 2: Message Semantics">[Part2]</cite></a>, <a href="p2-semantics.html#response.header.fields" title="Response Header Fields">Section 5</a>
    1424                    | entity-header ) CRLF)  ; <a href="#Part3" id="rfc.xref.Part3.10"><cite title="HTTP/1.1, part 3: Message Payload and Content Negotiation">[Part3]</cite></a>, <a href="p3-payload.html#entity.header.fields" title="Entity Header Fields">Section 3.1</a>
     1423                   | response-header        ; <a href="#Part2" id="rfc.xref.Part2.7"><cite title="HTTP/1.1, part 2: Message Semantics">[Part2]</cite></a>, <a href="p2-semantics.html#response.header.fields" title="Response Header Fields">Section 6</a>
     1424                   | entity-header ) CRLF)  ; <a href="#Part3" id="rfc.xref.Part3.10"><cite title="HTTP/1.1, part 3: Message Payload and Content Negotiation">[Part3]</cite></a>, <a href="p3-payload.html#entity.header.fields" title="Entity Header Fields">Section 4.1</a>
    14251425                  CRLF
    14261426                  [ message-body ]          ; <a href="#message.body" title="Message Body">Section&nbsp;4.3</a>
    … …  
    14331433</pre><h3 id="rfc.section.6.1.1"><a href="#rfc.section.6.1.1">6.1.1</a>&nbsp;<a id="status.code.and.reason.phrase" href="#status.code.and.reason.phrase">Status Code and Reason Phrase</a></h3>
    14341434      <p id="rfc.section.6.1.1.p.1">The Status-Code element is a 3-digit integer result code of the attempt to understand and satisfy the request. These codes
    1435          are fully defined in <a href="p2-semantics.html#status.codes" title="Status Code Definitions">Section 8</a> of <a href="#Part2" id="rfc.xref.Part2.8"><cite title="HTTP/1.1, part 2: Message Semantics">[Part2]</cite></a>. The Reason Phrase exists for the sole purpose of providing a textual description associated with the numeric status code,
     1435         are fully defined in <a href="p2-semantics.html#status.codes" title="Status Code Definitions">Section 9</a> of <a href="#Part2" id="rfc.xref.Part2.8"><cite title="HTTP/1.1, part 2: Message Semantics">[Part2]</cite></a>. The Reason Phrase exists for the sole purpose of providing a textual description associated with the numeric status code,
    14361436         out of deference to earlier Internet application protocols that were more frequently used with interactive text clients. A
    14371437         client <em class="bcp14">SHOULD</em> ignore the content of the Reason Phrase.
    … …  
    15031503      <p id="rfc.section.7.1.2.2.p.2">Clients which assume persistent connections and pipeline immediately after connection establishment <em class="bcp14">SHOULD</em> be prepared to retry their connection if the first pipelined attempt fails. If a client does such a retry, it <em class="bcp14">MUST NOT</em> pipeline before it knows the connection is persistent. Clients <em class="bcp14">MUST</em> also be prepared to resend their requests if the server closes the connection before sending all of the corresponding responses.
    15041504      </p>
    1505       <p id="rfc.section.7.1.2.2.p.3">Clients <em class="bcp14">SHOULD NOT</em> pipeline requests using non-idempotent methods or non-idempotent sequences of methods (see <a href="p2-semantics.html#idempotent.methods" title="Idempotent Methods">Section 7.1.2</a> of <a href="#Part2" id="rfc.xref.Part2.9"><cite title="HTTP/1.1, part 2: Message Semantics">[Part2]</cite></a>). Otherwise, a premature termination of the transport connection could lead to indeterminate results. A client wishing to
     1505      <p id="rfc.section.7.1.2.2.p.3">Clients <em class="bcp14">SHOULD NOT</em> pipeline requests using non-idempotent methods or non-idempotent sequences of methods (see <a href="p2-semantics.html#idempotent.methods" title="Idempotent Methods">Section 8.1.2</a> of <a href="#Part2" id="rfc.xref.Part2.9"><cite title="HTTP/1.1, part 2: Message Semantics">[Part2]</cite></a>). Otherwise, a premature termination of the transport connection could lead to indeterminate results. A client wishing to
    15061506         send a non-idempotent request <em class="bcp14">SHOULD</em> wait to send that request until it has received the response status for the previous request.
    15071507      </p>
    … …  
    15281528      </p>
    15291529      <p id="rfc.section.7.1.4.p.4">This means that clients, servers, and proxies <em class="bcp14">MUST</em> be able to recover from asynchronous close events. Client software <em class="bcp14">SHOULD</em> reopen the transport connection and retransmit the aborted sequence of requests without user interaction so long as the request
    1530          sequence is idempotent (see <a href="p2-semantics.html#idempotent.methods" title="Idempotent Methods">Section 7.1.2</a> of <a href="#Part2" id="rfc.xref.Part2.10"><cite title="HTTP/1.1, part 2: Message Semantics">[Part2]</cite></a>). Non-idempotent methods or sequences <em class="bcp14">MUST NOT</em> be automatically retried, although user agents <em class="bcp14">MAY</em> offer a human operator the choice of retrying the request(s). Confirmation by user-agent software with semantic understanding
     1530         sequence is idempotent (see <a href="p2-semantics.html#idempotent.methods" title="Idempotent Methods">Section 8.1.2</a> of <a href="#Part2" id="rfc.xref.Part2.10"><cite title="HTTP/1.1, part 2: Message Semantics">[Part2]</cite></a>). Non-idempotent methods or sequences <em class="bcp14">MUST NOT</em> be automatically retried, although user agents <em class="bcp14">MAY</em> offer a human operator the choice of retrying the request(s). Confirmation by user-agent software with semantic understanding
    15311531         of the application <em class="bcp14">MAY</em> substitute for user confirmation. The automatic retry <em class="bcp14">SHOULD NOT</em> be repeated if the second sequence of requests fails.
    15321532      </p>
    … …  
    15461546      </p>
    15471547      <h3 id="rfc.section.7.2.3"><a href="#rfc.section.7.2.3">7.2.3</a>&nbsp;<a id="use.of.the.100.status" href="#use.of.the.100.status">Use of the 100 (Continue) Status</a></h3>
    1548       <p id="rfc.section.7.2.3.p.1">The purpose of the 100 (Continue) status (see <a href="p2-semantics.html#status.100" title="100 Continue">Section 8.1.1</a> of <a href="#Part2" id="rfc.xref.Part2.11"><cite title="HTTP/1.1, part 2: Message Semantics">[Part2]</cite></a>) is to allow a client that is sending a request message with a request body to determine if the origin server is willing
     1548      <p id="rfc.section.7.2.3.p.1">The purpose of the 100 (Continue) status (see <a href="p2-semantics.html#status.100" title="100 Continue">Section 9.1.1</a> of <a href="#Part2" id="rfc.xref.Part2.11"><cite title="HTTP/1.1, part 2: Message Semantics">[Part2]</cite></a>) is to allow a client that is sending a request message with a request body to determine if the origin server is willing
    15491549         to accept the request (based on the request headers) before the client sends the request body. In some cases, it might either
    15501550         be inappropriate or highly inefficient for the client to send the body if the server will reject the message without looking
    … …  
    15531553      <p id="rfc.section.7.2.3.p.2">Requirements for HTTP/1.1 clients: </p>
    15541554      <ul>
    1555          <li>If a client will wait for a 100 (Continue) response before sending the request body, it <em class="bcp14">MUST</em> send an Expect request-header field (<a href="p2-semantics.html#header.expect" title="Expect">Section 9.2</a> of <a href="#Part2" id="rfc.xref.Part2.12"><cite title="HTTP/1.1, part 2: Message Semantics">[Part2]</cite></a>) with the "100-continue" expectation.
    1556          </li>
    1557          <li>A client <em class="bcp14">MUST NOT</em> send an Expect request-header field (<a href="p2-semantics.html#header.expect" title="Expect">Section 9.2</a> of <a href="#Part2" id="rfc.xref.Part2.13"><cite title="HTTP/1.1, part 2: Message Semantics">[Part2]</cite></a>) with the "100-continue" expectation if it does not intend to send a request body.
     1555         <li>If a client will wait for a 100 (Continue) response before sending the request body, it <em class="bcp14">MUST</em> send an Expect request-header field (<a href="p2-semantics.html#header.expect" title="Expect">Section 10.2</a> of <a href="#Part2" id="rfc.xref.Part2.12"><cite title="HTTP/1.1, part 2: Message Semantics">[Part2]</cite></a>) with the "100-continue" expectation.
     1556         </li>
     1557         <li>A client <em class="bcp14">MUST NOT</em> send an Expect request-header field (<a href="p2-semantics.html#header.expect" title="Expect">Section 10.2</a> of <a href="#Part2" id="rfc.xref.Part2.13"><cite title="HTTP/1.1, part 2: Message Semantics">[Part2]</cite></a>) with the "100-continue" expectation if it does not intend to send a request body.
    15581558         </li>
    15591559      </ul>
    … …  
    15991599         <li>A proxy <em class="bcp14">MUST NOT</em> forward a 100 (Continue) response if the request message was received from an HTTP/1.0 (or earlier) client and did not include
    16001600            an Expect request-header field with the "100-continue" expectation. This requirement overrides the general rule for forwarding
    1601             of 1xx responses (see <a href="p2-semantics.html#status.1xx" title="Informational 1xx">Section 8.1</a> of <a href="#Part2" id="rfc.xref.Part2.14"><cite title="HTTP/1.1, part 2: Message Semantics">[Part2]</cite></a>).
     1601            of 1xx responses (see <a href="p2-semantics.html#status.1xx" title="Informational 1xx">Section 9.1</a> of <a href="#Part2" id="rfc.xref.Part2.14"><cite title="HTTP/1.1, part 2: Message Semantics">[Part2]</cite></a>).
    16021602         </li>
    16031603      </ul>
    … …  
    17651765         <li>
    17661766            <p>If the transfer-coding being tested is one of the transfer-codings listed in the TE field, then it is acceptable unless it
    1767                is accompanied by a qvalue of 0. (As defined in <a href="p3-payload.html#quality.values" title="Quality Values">Section 2.4</a> of <a href="#Part3" id="rfc.xref.Part3.11"><cite title="HTTP/1.1, part 3: Message Payload and Content Negotiation">[Part3]</cite></a>, a qvalue of 0 means "not acceptable.")
     1767               is accompanied by a qvalue of 0. (As defined in <a href="p3-payload.html#quality.values" title="Quality Values">Section 3.4</a> of <a href="#Part3" id="rfc.xref.Part3.11"><cite title="HTTP/1.1, part 3: Message Payload and Content Negotiation">[Part3]</cite></a>, a qvalue of 0 means "not acceptable.")
    17681768            </p>
    17691769         </li>
    … …  
    26982698                  <li class="indline1"><em>Pad1995</em>&nbsp;&nbsp;<a class="iref" href="#rfc.xref.Pad1995.1">7.1.1</a>, <a class="iref" href="#Pad1995"><b>12.2</b></a></li>
    26992699                  <li class="indline1"><em>Part2</em>&nbsp;&nbsp;<a class="iref" href="#rfc.xref.Part2.1">3.2.1</a>, <a class="iref" href="#rfc.xref.Part2.2">4.2</a>, <a class="iref" href="#rfc.xref.Part2.3">4.2</a>, <a class="iref" href="#rfc.xref.Part2.4">4.3</a>, <a class="iref" href="#rfc.xref.Part2.5">5</a>, <a class="iref" href="#rfc.xref.Part2.6">5.1.2</a>, <a class="iref" href="#rfc.xref.Part2.7">6</a>, <a class="iref" href="#rfc.xref.Part2.8">6.1.1</a>, <a class="iref" href="#rfc.xref.Part2.9">7.1.2.2</a>, <a class="iref" href="#rfc.xref.Part2.10">7.1.4</a>, <a class="iref" href="#rfc.xref.Part2.11">7.2.3</a>, <a class="iref" href="#rfc.xref.Part2.12">7.2.3</a>, <a class="iref" href="#rfc.xref.Part2.13">7.2.3</a>, <a class="iref" href="#rfc.xref.Part2.14">7.2.3</a>, <a class="iref" href="#Part2"><b>12.1</b></a><ul class="ind">
    2700                         <li class="indline1"><em>Section 2</em>&nbsp;&nbsp;<a class="iref" href="#rfc.xref.Part2.4">4.3</a></li>
    2701                         <li class="indline1"><em>Section 3</em>&nbsp;&nbsp;<a class="iref" href="#rfc.xref.Part2.2">4.2</a>, <a class="iref" href="#rfc.xref.Part2.5">5</a></li>
    2702                         <li class="indline1"><em>Section 5</em>&nbsp;&nbsp;<a class="iref" href="#rfc.xref.Part2.3">4.2</a>, <a class="iref" href="#rfc.xref.Part2.7">6</a></li>
    2703                         <li class="indline1"><em>Section 7.1.2</em>&nbsp;&nbsp;<a class="iref" href="#rfc.xref.Part2.9">7.1.2.2</a>, <a class="iref" href="#rfc.xref.Part2.10">7.1.4</a></li>
    2704                         <li class="indline1"><em>Section 7.9</em>&nbsp;&nbsp;<a class="iref" href="#rfc.xref.Part2.6">5.1.2</a></li>
    2705                         <li class="indline1"><em>Section 8</em>&nbsp;&nbsp;<a class="iref" href="#rfc.xref.Part2.8">6.1.1</a></li>
    2706                         <li class="indline1"><em>Section 8.1.1</em>&nbsp;&nbsp;<a class="iref" href="#rfc.xref.Part2.11">7.2.3</a></li>
    2707                         <li class="indline1"><em>Section 8.1</em>&nbsp;&nbsp;<a class="iref" href="#rfc.xref.Part2.14">7.2.3</a></li>
    2708                         <li class="indline1"><em>Section 8.4.15</em>&nbsp;&nbsp;<a class="iref" href="#rfc.xref.Part2.1">3.2.1</a></li>
    2709                         <li class="indline1"><em>Section 9.2</em>&nbsp;&nbsp;<a class="iref" href="#rfc.xref.Part2.12">7.2.3</a>, <a class="iref" href="#rfc.xref.Part2.13">7.2.3</a></li>
     2700                        <li class="indline1"><em>Section 3</em>&nbsp;&nbsp;<a class="iref" href="#rfc.xref.Part2.4">4.3</a></li>
     2701                        <li class="indline1"><em>Section 4</em>&nbsp;&nbsp;<a class="iref" href="#rfc.xref.Part2.2">4.2</a>, <a class="iref" href="#rfc.xref.Part2.5">5</a></li>
     2702                        <li class="indline1"><em>Section 6</em>&nbsp;&nbsp;<a class="iref" href="#rfc.xref.Part2.3">4.2</a>, <a class="iref" href="#rfc.xref.Part2.7">6</a></li>
     2703                        <li class="indline1"><em>Section 8.1.2</em>&nbsp;&nbsp;<a class="iref" href="#rfc.xref.Part2.9">7.1.2.2</a>, <a class="iref" href="#rfc.xref.Part2.10">7.1.4</a></li>
     2704                        <li class="indline1"><em>Section 8.9</em>&nbsp;&nbsp;<a class="iref" href="#rfc.xref.Part2.6">5.1.2</a></li>
     2705                        <li class="indline1"><em>Section 9</em>&nbsp;&nbsp;<a class="iref" href="#rfc.xref.Part2.8">6.1.1</a></li>
     2706                        <li class="indline1"><em>Section 9.1.1</em>&nbsp;&nbsp;<a class="iref" href="#rfc.xref.Part2.11">7.2.3</a></li>
     2707                        <li class="indline1"><em>Section 9.1</em>&nbsp;&nbsp;<a class="iref" href="#rfc.xref.Part2.14">7.2.3</a></li>
     2708                        <li class="indline1"><em>Section 9.4.15</em>&nbsp;&nbsp;<a class="iref" href="#rfc.xref.Part2.1">3.2.1</a></li>
     2709                        <li class="indline1"><em>Section 10.2</em>&nbsp;&nbsp;<a class="iref" href="#rfc.xref.Part2.12">7.2.3</a>, <a class="iref" href="#rfc.xref.Part2.13">7.2.3</a></li>
    27102710                     </ul>
    27112711                  </li>
    27122712                  <li class="indline1"><em>Part3</em>&nbsp;&nbsp;<a class="iref" href="#rfc.xref.Part3.1">1.3</a>, <a class="iref" href="#rfc.xref.Part3.2">1.3</a>, <a class="iref" href="#rfc.xref.Part3.3">1.3</a>, <a class="iref" href="#rfc.xref.Part3.4">1.4</a>, <a class="iref" href="#rfc.xref.Part3.5">2.2</a>, <a class="iref" href="#rfc.xref.Part3.6">3.4</a>, <a class="iref" href="#rfc.xref.Part3.7">3.4</a>, <a class="iref" href="#rfc.xref.Part3.8">4.2</a>, <a class="iref" href="#rfc.xref.Part3.9">5</a>, <a class="iref" href="#rfc.xref.Part3.10">6</a>, <a class="iref" href="#rfc.xref.Part3.11">8.5</a>, <a class="iref" href="#Part3"><b>12.1</b></a>, <a class="iref" href="#rfc.xref.Part3.12">B</a>, <a class="iref" href="#rfc.xref.Part3.13">D.3</a><ul class="ind">
    2713                         <li class="indline1"><em>Section 2.2</em>&nbsp;&nbsp;<a class="iref" href="#rfc.xref.Part3.6">3.4</a>, <a class="iref" href="#rfc.xref.Part3.7">3.4</a></li>
    2714                         <li class="indline1"><em>Section 2.3</em>&nbsp;&nbsp;<a class="iref" href="#rfc.xref.Part3.5">2.2</a></li>
    2715                         <li class="indline1"><em>Section 2.4</em>&nbsp;&nbsp;<a class="iref" href="#rfc.xref.Part3.11">8.5</a></li>
    2716                         <li class="indline1"><em>Section 3</em>&nbsp;&nbsp;<a class="iref" href="#rfc.xref.Part3.1">1.3</a></li>
    2717                         <li class="indline1"><em>Section 3.1</em>&nbsp;&nbsp;<a class="iref" href="#rfc.xref.Part3.8">4.2</a>, <a class="iref" href="#rfc.xref.Part3.9">5</a>, <a class="iref" href="#rfc.xref.Part3.10">6</a></li>
    2718                         <li class="indline1"><em>Section 4</em>&nbsp;&nbsp;<a class="iref" href="#rfc.xref.Part3.2">1.3</a>, <a class="iref" href="#rfc.xref.Part3.3">1.3</a></li>
     2713                        <li class="indline1"><em>Section 3.2</em>&nbsp;&nbsp;<a class="iref" href="#rfc.xref.Part3.6">3.4</a>, <a class="iref" href="#rfc.xref.Part3.7">3.4</a></li>
     2714                        <li class="indline1"><em>Section 3.3</em>&nbsp;&nbsp;<a class="iref" href="#rfc.xref.Part3.5">2.2</a></li>
     2715                        <li class="indline1"><em>Section 3.4</em>&nbsp;&nbsp;<a class="iref" href="#rfc.xref.Part3.11">8.5</a></li>
     2716                        <li class="indline1"><em>Section 4</em>&nbsp;&nbsp;<a class="iref" href="#rfc.xref.Part3.1">1.3</a></li>
     2717                        <li class="indline1"><em>Section 4.1</em>&nbsp;&nbsp;<a class="iref" href="#rfc.xref.Part3.8">4.2</a>, <a class="iref" href="#rfc.xref.Part3.9">5</a>, <a class="iref" href="#rfc.xref.Part3.10">6</a></li>
     2718                        <li class="indline1"><em>Section 5</em>&nbsp;&nbsp;<a class="iref" href="#rfc.xref.Part3.2">1.3</a>, <a class="iref" href="#rfc.xref.Part3.3">1.3</a></li>
    27192719                        <li class="indline1"><em>Section A</em>&nbsp;&nbsp;<a class="iref" href="#rfc.xref.Part3.4">1.4</a></li>
    27202720                     </ul>
    … …  
    27232723                  <li class="indline1"><em>Part6</em>&nbsp;&nbsp;<a class="iref" href="#rfc.xref.Part6.1">1.3</a>, <a class="iref" href="#rfc.xref.Part6.2">1.4</a>, <a class="iref" href="#rfc.xref.Part6.3">4.5</a>, <a class="iref" href="#rfc.xref.Part6.4">4.5</a>, <a class="iref" href="#rfc.xref.Part6.5">4.5</a>, <a class="iref" href="#Part6"><b>12.1</b></a>, <a class="iref" href="#rfc.xref.Part6.6">D.3</a><ul class="ind">
    27242724                        <li class="indline1"><em>Section 1</em>&nbsp;&nbsp;<a class="iref" href="#rfc.xref.Part6.1">1.3</a>, <a class="iref" href="#rfc.xref.Part6.2">1.4</a></li>
    2725                         <li class="indline1"><em>Section 15.2</em>&nbsp;&nbsp;<a class="iref" href="#rfc.xref.Part6.3">4.5</a></li>
    2726                         <li class="indline1"><em>Section 15.4</em>&nbsp;&nbsp;<a class="iref" href="#rfc.xref.Part6.4">4.5</a></li>
    2727                         <li class="indline1"><em>Section 15.6</em>&nbsp;&nbsp;<a class="iref" href="#rfc.xref.Part6.5">4.5</a></li>
     2725                        <li class="indline1"><em>Section 16.2</em>&nbsp;&nbsp;<a class="iref" href="#rfc.xref.Part6.3">4.5</a></li>
     2726                        <li class="indline1"><em>Section 16.4</em>&nbsp;&nbsp;<a class="iref" href="#rfc.xref.Part6.4">4.5</a></li>
     2727                        <li class="indline1"><em>Section 16.6</em>&nbsp;&nbsp;<a class="iref" href="#rfc.xref.Part6.5">4.5</a></li>
    27282728                     </ul>
    27292729                  </li>

  • draft-ietf-httpbis/latest/p2-semantics.html

    r204 r205  
    333333      <link rel="Index" href="#rfc.index">
    334334      <link rel="Chapter" title="1 Introduction" href="#rfc.section.1">
    335       <link rel="Chapter" title="2 Method" href="#rfc.section.2">
    336       <link rel="Chapter" title="3 Request Header Fields" href="#rfc.section.3">
    337       <link rel="Chapter" title="4 Status Code and Reason Phrase" href="#rfc.section.4">
    338       <link rel="Chapter" title="5 Response Header Fields" href="#rfc.section.5">
    339       <link rel="Chapter" title="6 Entity" href="#rfc.section.6">
    340       <link rel="Chapter" title="7 Method Definitions" href="#rfc.section.7">
    341       <link rel="Chapter" title="8 Status Code Definitions" href="#rfc.section.8">
    342       <link rel="Chapter" title="9 Header Field Definitions" href="#rfc.section.9">
    343       <link rel="Chapter" title="10 IANA Considerations" href="#rfc.section.10">
    344       <link rel="Chapter" title="11 Security Considerations" href="#rfc.section.11">
    345       <link rel="Chapter" title="12 Acknowledgments" href="#rfc.section.12">
    346       <link rel="Chapter" href="#rfc.section.13" title="13 References">
     335      <link rel="Chapter" title="2 Notational Conventions and Generic Grammar" href="#rfc.section.2">
     336      <link rel="Chapter" title="3 Method" href="#rfc.section.3">
     337      <link rel="Chapter" title="4 Request Header Fields" href="#rfc.section.4">
     338      <link rel="Chapter" title="5 Status Code and Reason Phrase" href="#rfc.section.5">
     339      <link rel="Chapter" title="6 Response Header Fields" href="#rfc.section.6">
     340      <link rel="Chapter" title="7 Entity" href="#rfc.section.7">
     341      <link rel="Chapter" title="8 Method Definitions" href="#rfc.section.8">
     342      <link rel="Chapter" title="9 Status Code Definitions" href="#rfc.section.9">
     343      <link rel="Chapter" title="10 Header Field Definitions" href="#rfc.section.10">
     344      <link rel="Chapter" title="11 IANA Considerations" href="#rfc.section.11">
     345      <link rel="Chapter" title="12 Security Considerations" href="#rfc.section.12">
     346      <link rel="Chapter" title="13 Acknowledgments" href="#rfc.section.13">
     347      <link rel="Chapter" href="#rfc.section.14" title="14 References">
    347348      <link rel="Appendix" title="A Compatibility with Previous Versions" href="#rfc.section.A">
    348349      <link rel="Appendix" title="B Change Log (to be removed by RFC Editor before publication)" href="#rfc.section.B">
    … …  
    486487            </ul>
    487488         </li>
    488          <li class="tocline0">2.&nbsp;&nbsp;&nbsp;<a href="#method">Method</a></li>
    489          <li class="tocline0">3.&nbsp;&nbsp;&nbsp;<a href="#request.header.fields">Request Header Fields</a></li>
    490          <li class="tocline0">4.&nbsp;&nbsp;&nbsp;<a href="#status.code.and.reason.phrase">Status Code and Reason Phrase</a></li>
    491          <li class="tocline0">5.&nbsp;&nbsp;&nbsp;<a href="#response.header.fields">Response Header Fields</a></li>
    492          <li class="tocline0">6.&nbsp;&nbsp;&nbsp;<a href="#entity">Entity</a></li>
    493          <li class="tocline0">7.&nbsp;&nbsp;&nbsp;<a href="#method.definitions">Method Definitions</a><ul class="toc">
    494                <li class="tocline1">7.1&nbsp;&nbsp;&nbsp;<a href="#safe.and.idempotent">Safe and Idempotent Methods</a><ul class="toc">
    495                      <li class="tocline1">7.1.1&nbsp;&nbsp;&nbsp;<a href="#safe.methods">Safe Methods</a></li>
    496                      <li class="tocline1">7.1.2&nbsp;&nbsp;&nbsp;<a href="#idempotent.methods">Idempotent Methods</a></li>
     489         <li class="tocline0">2.&nbsp;&nbsp;&nbsp;<a href="#notation">Notational Conventions and Generic Grammar</a></li>
     490         <li class="tocline0">3.&nbsp;&nbsp;&nbsp;<a href="#method">Method</a></li>
     491         <li class="tocline0">4.&nbsp;&nbsp;&nbsp;<a href="#request.header.fields">Request Header Fields</a></li>
     492         <li class="tocline0">5.&nbsp;&nbsp;&nbsp;<a href="#status.code.and.reason.phrase">Status Code and Reason Phrase</a></li>
     493         <li class="tocline0">6.&nbsp;&nbsp;&nbsp;<a href="#response.header.fields">Response Header Fields</a></li>
     494         <li class="tocline0">7.&nbsp;&nbsp;&nbsp;<a href="#entity">Entity</a></li>
     495         <li class="tocline0">8.&nbsp;&nbsp;&nbsp;<a href="#method.definitions">Method Definitions</a><ul class="toc">
     496               <li class="tocline1">8.1&nbsp;&nbsp;&nbsp;<a href="#safe.and.idempotent">Safe and Idempotent Methods</a><ul class="toc">
     497                     <li class="tocline1">8.1.1&nbsp;&nbsp;&nbsp;<a href="#safe.methods">Safe Methods</a></li>
     498                     <li class="tocline1">8.1.2&nbsp;&nbsp;&nbsp;<a href="#idempotent.methods">Idempotent Methods</a></li>
    497499                  </ul>
    498500               </li>
    499                <li class="tocline1">7.2&nbsp;&nbsp;&nbsp;<a href="#OPTIONS">OPTIONS</a></li>
    500                <li class="tocline1">7.3&nbsp;&nbsp;&nbsp;<a href="#GET">GET</a></li>
    501                <li class="tocline1">7.4&nbsp;&nbsp;&nbsp;<a href="#HEAD">HEAD</a></li>
    502                <li class="tocline1">7.5&nbsp;&nbsp;&nbsp;<a href="#POST">POST</a></li>
    503                <li class="tocline1">7.6&nbsp;&nbsp;&nbsp;<a href="#PUT">PUT</a></li>
    504                <li class="tocline1">7.7&nbsp;&nbsp;&nbsp;<a href="#DELETE">DELETE</a></li>
    505                <li class="tocline1">7.8&nbsp;&nbsp;&nbsp;<a href="#TRACE">TRACE</a></li>
    506                <li class="tocline1">7.9&nbsp;&nbsp;&nbsp;<a href="#CONNECT">CONNECT</a></li>
     501               <li class="tocline1">8.2&nbsp;&nbsp;&nbsp;<a href="#OPTIONS">OPTIONS</a></li>
     502               <li class="tocline1">8.3&nbsp;&nbsp;&nbsp;<a href="#GET">GET</a></li>
     503               <li class="tocline1">8.4&nbsp;&nbsp;&nbsp;<a href="#HEAD">HEAD</a></li>
     504               <li class="tocline1">8.5&nbsp;&nbsp;&nbsp;<a href="#POST">POST</a></li>
     505               <li class="tocline1">8.6&nbsp;&nbsp;&nbsp;<a href="#PUT">PUT</a></li>
     506               <li class="tocline1">8.7&nbsp;&nbsp;&nbsp;<a href="#DELETE">DELETE</a></li>
     507               <li class="tocline1">8.8&nbsp;&nbsp;&nbsp;<a href="#TRACE">TRACE</a></li>
     508               <li class="tocline1">8.9&nbsp;&nbsp;&nbsp;<a href="#CONNECT">CONNECT</a></li>
    507509            </ul>
    508510         </li>
    509          <li class="tocline0">8.&nbsp;&nbsp;&nbsp;<a href="#status.codes">Status Code Definitions</a><ul class="toc">
    510                <li class="tocline1">8.1&nbsp;&nbsp;&nbsp;<a href="#status.1xx">Informational 1xx</a><ul class="toc">
    511                      <li class="tocline1">8.1.1&nbsp;&nbsp;&nbsp;<a href="#status.100">100 Continue</a></li>
    512                      <li class="tocline1">8.1.2&nbsp;&nbsp;&nbsp;<a href="#status.101">101 Switching Protocols</a></li>
     511         <li class="tocline0">9.&nbsp;&nbsp;&nbsp;<a href="#status.codes">Status Code Definitions</a><ul class="toc">
     512               <li class="tocline1">9.1&nbsp;&nbsp;&nbsp;<a href="#status.1xx">Informational 1xx</a><ul class="toc">
     513                     <li class="tocline1">9.1.1&nbsp;&nbsp;&nbsp;<a href="#status.100">100 Continue</a></li>
     514                     <li class="tocline1">9.1.2&nbsp;&nbsp;&nbsp;<a href="#status.101">101 Switching Protocols</a></li>
    513515                  </ul>
    514516               </li>
    515                <li class="tocline1">8.2&nbsp;&nbsp;&nbsp;<a href="#status.2xx">Successful 2xx</a><ul class="toc">
    516                      <li class="tocline1">8.2.1&nbsp;&nbsp;&nbsp;<a href="#status.200">200 OK</a></li>
    517                      <li class="tocline1">8.2.2&nbsp;&nbsp;&nbsp;<a href="#status.201">201 Created</a></li>
    518                      <li class="tocline1">8.2.3&nbsp;&nbsp;&nbsp;<a href="#status.202">202 Accepted</a></li>
    519                      <li class="tocline1">8.2.4&nbsp;&nbsp;&nbsp;<a href="#status.203">203 Non-Authoritative Information</a></li>
    520                      <li class="tocline1">8.2.5&nbsp;&nbsp;&nbsp;<a href="#status.204">204 No Content</a></li>
    521                      <li class="tocline1">8.2.6&nbsp;&nbsp;&nbsp;<a href="#status.205">205 Reset Content</a></li>
    522                      <li class="tocline1">8.2.7&nbsp;&nbsp;&nbsp;<a href="#status.206">206 Partial Content</a></li>
     517               <li class="tocline1">9.2&nbsp;&nbsp;&nbsp;<a href="#status.2xx">Successful 2xx</a><ul class="toc">
     518                     <li class="tocline1">9.2.1&nbsp;&nbsp;&nbsp;<a href="#status.200">200 OK</a></li>
     519                     <li class="tocline1">9.2.2&nbsp;&nbsp;&nbsp;<a href="#status.201">201 Created</a></li>
     520                     <li class="tocline1">9.2.3&nbsp;&nbsp;&nbsp;<a href="#status.202">202 Accepted</a></li>
     521                     <li class="tocline1">9.2.4&nbsp;&nbsp;&nbsp;<a href="#status.203">203 Non-Authoritative Information</a></li>
     522                     <li class="tocline1">9.2.5&nbsp;&nbsp;&nbsp;<a href="#status.204">204 No Content</a></li>
     523                     <li class="tocline1">9.2.6&nbsp;&nbsp;&nbsp;<a href="#status.205">205 Reset Content</a></li>
     524                     <li class="tocline1">9.2.7&nbsp;&nbsp;&nbsp;<a href="#status.206">206 Partial Content</a></li>
    523525                  </ul>
    524526               </li>
    525                <li class="tocline1">8.3&nbsp;&nbsp;&nbsp;<a href="#status.3xx">Redirection 3xx</a><ul class="toc">
    526                      <li class="tocline1">8.3.1&nbsp;&nbsp;&nbsp;<a href="#status.300">300 Multiple Choices</a></li>
    527                      <li class="tocline1">8.3.2&nbsp;&nbsp;&nbsp;<a href="#status.301">301 Moved Permanently</a></li>
    528                      <li class="tocline1">8.3.3&nbsp;&nbsp;&nbsp;<a href="#status.302">302 Found</a></li>
    529                      <li class="tocline1">8.3.4&nbsp;&nbsp;&nbsp;<a href="#status.303">303 See Other</a></li>
    530                      <li class="tocline1">8.3.5&nbsp;&nbsp;&nbsp;<a href="#status.304">304 Not Modified</a></li>
    531                      <li class="tocline1">8.3.6&nbsp;&nbsp;&nbsp;<a href="#status.305">305 Use Proxy</a></li>
    532                      <li class="tocline1">8.3.7&nbsp;&nbsp;&nbsp;<a href="#status.306">306 (Unused)</a></li>
    533                      <li class="tocline1">8.3.8&nbsp;&nbsp;&nbsp;<a href="#status.307">307 Temporary Redirect</a></li>
     527               <li class="tocline1">9.3&nbsp;&nbsp;&nbsp;<a href="#status.3xx">Redirection 3xx</a><ul class="toc">
     528                     <li class="tocline1">9.3.1&nbsp;&nbsp;&nbsp;<a href="#status.300">300 Multiple Choices</a></li>
     529                     <li class="tocline1">9.3.2&nbsp;&nbsp;&nbsp;<a href="#status.301">301 Moved Permanently</a></li>
     530                     <li class="tocline1">9.3.3&nbsp;&nbsp;&nbsp;<a href="#status.302">302 Found</a></li>
     531                     <li class="tocline1">9.3.4&nbsp;&nbsp;&nbsp;<a href="#status.303">303 See Other</a></li>
     532                     <li class="tocline1">9.3.5&nbsp;&nbsp;&nbsp;<a href="#status.304">304 Not Modified</a></li>
     533                     <li class="tocline1">9.3.6&nbsp;&nbsp;&nbsp;<a href="#status.305">305 Use Proxy</a></li>
     534                     <li class="tocline1">9.3.7&nbsp;&nbsp;&nbsp;<a href="#status.306">306 (Unused)</a></li>
     535                     <li class="tocline1">9.3.8&nbsp;&nbsp;&nbsp;<a href="#status.307">307 Temporary Redirect</a></li>
    534536                  </ul>
    535537               </li>
    536                <li class="tocline1">8.4&nbsp;&nbsp;&nbsp;<a href="#status.4xx">Client Error 4xx</a><ul class="toc">
    537                      <li class="tocline1">8.4.1&nbsp;&nbsp;&nbsp;<a href="#status.400">400 Bad Request</a></li>
    538                      <li class="tocline1">8.4.2&nbsp;&nbsp;&nbsp;<a href="#status.401">401 Unauthorized</a></li>
    539                      <li class="tocline1">8.4.3&nbsp;&nbsp;&nbsp;<a href="#status.402">402 Payment Required</a></li>
    540                      <li class="tocline1">8.4.4&nbsp;&nbsp;&nbsp;<a href="#status.403">403 Forbidden</a></li>
    541                      <li class="tocline1">8.4.5&nbsp;&nbsp;&nbsp;<a href="#status.404">404 Not Found</a></li>
    542                      <li class="tocline1">8.4.6&nbsp;&nbsp;&nbsp;<a href="#status.405">405 Method Not Allowed</a></li>
    543                      <li class="tocline1">8.4.7&nbsp;&nbsp;&nbsp;<a href="#status.406">406 Not Acceptable</a></li>
    544                      <li class="tocline1">8.4.8&nbsp;&nbsp;&nbsp;<a href="#status.407">407 Proxy Authentication Required</a></li>
    545                      <li class="tocline1">8.4.9&nbsp;&nbsp;&nbsp;<a href="#status.408">408 Request Timeout</a></li>
    546                      <li class="tocline1">8.4.10&nbsp;&nbsp;&nbsp;<a href="#status.409">409 Conflict</a></li>
    547                      <li class="tocline1">8.4.11&nbsp;&nbsp;&nbsp;<a href="#status.410">410 Gone</a></li>
    548                      <li class="tocline1">8.4.12&nbsp;&nbsp;&nbsp;<a href="#status.411">411 Length Required</a></li>
    549                      <li class="tocline1">8.4.13&nbsp;&nbsp;&nbsp;<a href="#status.412">412 Precondition Failed</a></li>
    550                      <li class="tocline1">8.4.14&nbsp;&nbsp;&nbsp;<a href="#status.413">413 Request Entity Too Large</a></li>
    551                      <li class="tocline1">8.4.15&nbsp;&nbsp;&nbsp;<a href="#status.414">414 Request-URI Too Long</a></li>
    552                      <li class="tocline1">8.4.16&nbsp;&nbsp;&nbsp;<a href="#status.415">415 Unsupported Media Type</a></li>
    553                      <li class="tocline1">8.4.17&nbsp;&nbsp;&nbsp;<a href="#status.416">416 Requested Range Not Satisfiable</a></li>
    554                      <li class="tocline1">8.4.18&nbsp;&nbsp;&nbsp;<a href="#status.417">417 Expectation Failed</a></li>
     538               <li class="tocline1">9.4&nbsp;&nbsp;&nbsp;<a href="#status.4xx">Client Error 4xx</a><ul class="toc">
     539                     <li class="tocline1">9.4.1&nbsp;&nbsp;&nbsp;<a href="#status.400">400 Bad Request</a></li>
     540                     <li class="tocline1">9.4.2&nbsp;&nbsp;&nbsp;<a href="#status.401">401 Unauthorized</a></li>
     541                     <li class="tocline1">9.4.3&nbsp;&nbsp;&nbsp;<a href="#status.402">402 Payment Required</a></li>
     542                     <li class="tocline1">9.4.4&nbsp;&nbsp;&nbsp;<a href="#status.403">403 Forbidden</a></li>
     543                     <li class="tocline1">9.4.5&nbsp;&nbsp;&nbsp;<a href="#status.404">404 Not Found</a></li>
     544                     <li class="tocline1">9.4.6&nbsp;&nbsp;&nbsp;<a href="#status.405">405 Method Not Allowed</a></li>
     545                     <li class="tocline1">9.4.7&nbsp;&nbsp;&nbsp;<a href="#status.406">406 Not Acceptable</a></li>
     546                     <li class="tocline1">9.4.8&nbsp;&nbsp;&nbsp;<a href="#status.407">407 Proxy Authentication Required</a></li>
     547                     <li class="tocline1">9.4.9&nbsp;&nbsp;&nbsp;<a href="#status.408">408 Request Timeout</a></li>
     548                     <li class="tocline1">9.4.10&nbsp;&nbsp;&nbsp;<a href="#status.409">409 Conflict</a></li>
     549                     <li class="tocline1">9.4.11&nbsp;&nbsp;&nbsp;<a href="#status.410">410 Gone</a></li>
     550                     <li class="tocline1">9.4.12&nbsp;&nbsp;&nbsp;<a href="#status.411">411 Length Required</a></li>
     551                     <li class="tocline1">9.4.13&nbsp;&nbsp;&nbsp;<a href="#status.412">412 Precondition Failed</a></li>
     552                     <li class="tocline1">9.4.14&nbsp;&nbsp;&nbsp;<a href="#status.413">413 Request Entity Too Large</a></li>
     553                     <li class="tocline1">9.4.15&nbsp;&nbsp;&nbsp;<a href="#status.414">414 Request-URI Too Long</a></li>
     554                     <li class="tocline1">9.4.16&nbsp;&nbsp;&nbsp;<a href="#status.415">415 Unsupported Media Type</a></li>
     555                     <li class="tocline1">9.4.17&nbsp;&nbsp;&nbsp;<a href="#status.416">416 Requested Range Not Satisfiable</a></li>
     556                     <li class="tocline1">9.4.18&nbsp;&nbsp;&nbsp;<a href="#status.417">417 Expectation Failed</a></li>
    555557                  </ul>
    556558               </li>
    557                <li class="tocline1">8.5&nbsp;&nbsp;&nbsp;<a href="#status.5xx">Server Error 5xx</a><ul class="toc">
    558                      <li class="tocline1">8.5.1&nbsp;&nbsp;&nbsp;<a href="#status.500">500 Internal Server Error</a></li>
    559                      <li class="tocline1">8.5.2&nbsp;&nbsp;&nbsp;<a href="#status.501">501 Not Implemented</a></li>
    560                      <li class="tocline1">8.5.3&nbsp;&nbsp;&nbsp;<a href="#status.502">502 Bad Gateway</a></li>
    561                      <li class="tocline1">8.5.4&nbsp;&nbsp;&nbsp;<a href="#status.503">503 Service Unavailable</a></li>
    562                      <li class="tocline1">8.5.5&nbsp;&nbsp;&nbsp;<a href="#status.504">504 Gateway Timeout</a></li>
    563                      <li class="tocline1">8.5.6&nbsp;&nbsp;&nbsp;<a href="#status.505">505 HTTP Version Not Supported</a></li>
     559               <li class="tocline1">9.5&nbsp;&nbsp;&nbsp;<a href="#status.5xx">Server Error 5xx</a><ul class="toc">
     560                     <li class="tocline1">9.5.1&nbsp;&nbsp;&nbsp;<a href="#status.500">500 Internal Server Error</a></li>
     561                     <li class="tocline1">9.5.2&nbsp;&nbsp;&nbsp;<a href="#status.501">501 Not Implemented</a></li>
     562                     <li class="tocline1">9.5.3&nbsp;&nbsp;&nbsp;<a href="#status.502">502 Bad Gateway</a></li>
     563                     <li class="tocline1">9.5.4&nbsp;&nbsp;&nbsp;<a href="#status.503">503 Service Unavailable</a></li>
     564                     <li class="tocline1">9.5.5&nbsp;&nbsp;&nbsp;<a href="#status.504">504 Gateway Timeout</a></li>
     565                     <li class="tocline1">9.5.6&nbsp;&nbsp;&nbsp;<a href="#status.505">505 HTTP Version Not Supported</a></li>
    564566                  </ul>
    565567               </li>
    566568            </ul>
    567569         </li>
    568          <li class="tocline0">9.&nbsp;&nbsp;&nbsp;<a href="#header.fields">Header Field Definitions</a><ul class="toc">
    569                <li class="tocline1">9.1&nbsp;&nbsp;&nbsp;<a href="#header.allow">Allow</a></li>
    570                <li class="tocline1">9.2&nbsp;&nbsp;&nbsp;<a href="#header.expect">Expect</a></li>
    571                <li class="tocline1">9.3&nbsp;&nbsp;&nbsp;<a href="#header.from">From</a></li>
    572                <li class="tocline1">9.4&nbsp;&nbsp;&nbsp;<a href="#header.location">Location</a></li>
    573                <li class="tocline1">9.5&nbsp;&nbsp;&nbsp;<a href="#header.max-forwards">Max-Forwards</a></li>
    574                <li class="tocline1">9.6&nbsp;&nbsp;&nbsp;<a href="#header.referer">Referer</a></li>
    575                <li class="tocline1">9.7&nbsp;&nbsp;&nbsp;<a href="#header.retry-after">Retry-After</a></li>
    576                <li class="tocline1">9.8&nbsp;&nbsp;&nbsp;<a href="#header.server">Server</a></li>
    577                <li class="tocline1">9.9&nbsp;&nbsp;&nbsp;<a href="#header.user-agent">User-Agent</a></li>
     570         <li class="tocline0">10.&nbsp;&nbsp;&nbsp;<a href="#header.fields">Header Field Definitions</a><ul class="toc">
     571               <li class="tocline1">10.1&nbsp;&nbsp;&nbsp;<a href="#header.allow">Allow</a></li>
     572               <li class="tocline1">10.2&nbsp;&nbsp;&nbsp;<a href="#header.expect">Expect</a></li>
     573               <li class="tocline1">10.3&nbsp;&nbsp;&nbsp;<a href="#header.from">From</a></li>
     574               <li class="tocline1">10.4&nbsp;&nbsp;&nbsp;<a href="#header.location">Location</a></li>
     575               <li class="tocline1">10.5&nbsp;&nbsp;&nbsp;<a href="#header.max-forwards">Max-Forwards</a></li>
     576               <li class="tocline1">10.6&nbsp;&nbsp;&nbsp;<a href="#header.referer">Referer</a></li>
     577               <li class="tocline1">10.7&nbsp;&nbsp;&nbsp;<a href="#header.retry-after">Retry-After</a></li>
     578               <li class="tocline1">10.8&nbsp;&nbsp;&nbsp;<a href="#header.server">Server</a></li>
     579               <li class="tocline1">10.9&nbsp;&nbsp;&nbsp;<a href="#header.user-agent">User-Agent</a></li>
    578580            </ul>
    579581         </li>
    580          <li class="tocline0">10.&nbsp;&nbsp;&nbsp;<a href="#IANA.considerations">IANA Considerations</a></li>
    581          <li class="tocline0">11.&nbsp;&nbsp;&nbsp;<a href="#security.considerations">Security Considerations</a><ul class="toc">
    582                <li class="tocline1">11.1&nbsp;&nbsp;&nbsp;<a href="#security.sensitive">Transfer of Sensitive Information</a></li>
    583                <li class="tocline1">11.2&nbsp;&nbsp;&nbsp;<a href="#encoding.sensitive.information.in.uris">Encoding Sensitive Information in URIs</a></li>
    584                <li class="tocline1">11.3&nbsp;&nbsp;&nbsp;<a href="#location.spoofing">Location Headers and Spoofing</a></li>
     582         <li class="tocline0">11.&nbsp;&nbsp;&nbsp;<a href="#IANA.considerations">IANA Considerations</a></li>
     583         <li class="tocline0">12.&nbsp;&nbsp;&nbsp;<a href="#security.considerations">Security Considerations</a><ul class="toc">
     584               <li class="tocline1">12.1&nbsp;&nbsp;&nbsp;<a href="#security.sensitive">Transfer of Sensitive Information</a></li>
     585               <li class="tocline1">12.2&nbsp;&nbsp;&nbsp;<a href="#encoding.sensitive.information.in.uris">Encoding Sensitive Information in URIs</a></li>
     586               <li class="tocline1">12.3&nbsp;&nbsp;&nbsp;<a href="#location.spoofing">Location Headers and Spoofing</a></li>
    585587            </ul>
    586588         </li>
    587          <li class="tocline0">12.&nbsp;&nbsp;&nbsp;<a href="#ack">Acknowledgments</a></li>
    588          <li class="tocline0">13.&nbsp;&nbsp;&nbsp;<a href="#rfc.references">References</a><ul class="toc">
    589                <li class="tocline1">13.1&nbsp;&nbsp;&nbsp;<a href="#rfc.references.1">Normative References</a></li>
    590                <li class="tocline1">13.2&nbsp;&nbsp;&nbsp;<a href="#rfc.references.2">Informative References</a></li>
     589         <li class="tocline0">13.&nbsp;&nbsp;&nbsp;<a href="#ack">Acknowledgments</a></li>
     590         <li class="tocline0">14.&nbsp;&nbsp;&nbsp;<a href="#rfc.references">References</a><ul class="toc">
     591               <li class="tocline1">14.1&nbsp;&nbsp;&nbsp;<a href="#rfc.references.1">Normative References</a></li>
     592               <li class="tocline1">14.2&nbsp;&nbsp;&nbsp;<a href="#rfc.references.2">Informative References</a></li>
    591593            </ul>
    592594         </li>
    … …  
    624626      <p id="rfc.section.1.1.p.2">An implementation is not compliant if it fails to satisfy one or more of the <em class="bcp14">MUST</em> or <em class="bcp14">REQUIRED</em> level requirements for the protocols it implements. An implementation that satisfies all the <em class="bcp14">MUST</em> or <em class="bcp14">REQUIRED</em> level and all the <em class="bcp14">SHOULD</em> level requirements for its protocols is said to be "unconditionally compliant"; one that satisfies all the <em class="bcp14">MUST</em> level requirements but not all the <em class="bcp14">SHOULD</em> level requirements for its protocols is said to be "conditionally compliant."
    625627      </p>
    626       <h1 id="rfc.section.2"><a href="#rfc.section.2">2.</a>&nbsp;<a id="method" href="#method">Method</a></h1>
    627       <p id="rfc.section.2.p.1">The Method token indicates the method to be performed on the resource identified by the Request-URI. The method is case-sensitive.</p>
    628       <div id="rfc.figure.u.1"></div><pre class="inline"><span id="rfc.iref.g.1"></span><span id="rfc.iref.g.2"></span>  Method         = "OPTIONS"                ; <a href="#OPTIONS" id="rfc.xref.OPTIONS.1" title="OPTIONS">Section&nbsp;7.2</a>
    629                  | "GET"                    ; <a href="#GET" id="rfc.xref.GET.1" title="GET">Section&nbsp;7.3</a>
    630                  | "HEAD"                   ; <a href="#HEAD" id="rfc.xref.HEAD.1" title="HEAD">Section&nbsp;7.4</a>
    631                  | "POST"                   ; <a href="#POST" id="rfc.xref.POST.1" title="POST">Section&nbsp;7.5</a>
    632                  | "PUT"                    ; <a href="#PUT" id="rfc.xref.PUT.1" title="PUT">Section&nbsp;7.6</a>
    633                  | "DELETE"                 ; <a href="#DELETE" id="rfc.xref.DELETE.1" title="DELETE">Section&nbsp;7.7</a>
    634                  | "TRACE"                  ; <a href="#TRACE" id="rfc.xref.TRACE.1" title="TRACE">Section&nbsp;7.8</a>
    635                  | "CONNECT"                ; <a href="#CONNECT" id="rfc.xref.CONNECT.1" title="CONNECT">Section&nbsp;7.9</a>
     628      <h1 id="rfc.section.2"><a href="#rfc.section.2">2.</a>&nbsp;<a id="notation" href="#notation">Notational Conventions and Generic Grammar</a></h1>
     629      <p id="rfc.section.2.p.1">This specification uses the ABNF syntax defined in <a href="p1-messaging.html#notation.abnf" title="Augmented BNF">Section 2.1</a> of <a href="#Part1" id="rfc.xref.Part1.2"><cite title="HTTP/1.1, part 1: URIs, Connections, and Message Parsing">[Part1]</cite></a> and the core rules defined in <a href="p1-messaging.html#basic.rules" title="Basic Rules">Section 2.2</a> of <a href="#Part1" id="rfc.xref.Part1.3"><cite title="HTTP/1.1, part 1: URIs, Connections, and Message Parsing">[Part1]</cite></a>: <span class="comment">[abnf.dep: ABNF syntax and basic rules will be adopted from RFC 5234, see &lt;<a href="http://tools.ietf.org/wg/httpbis/trac/ticket/36">http://tools.ietf.org/wg/httpbis/trac/ticket/36</a>&gt;.]</span>
     630      </p>
     631      <div id="rfc.figure.u.1"></div><pre class="inline">  DIGIT         = &lt;DIGIT, defined in <a href="#Part1" id="rfc.xref.Part1.4"><cite title="HTTP/1.1, part 1: URIs, Connections, and Message Parsing">[Part1]</cite></a>, <a href="p1-messaging.html#basic.rules" title="Basic Rules">Section 2.2</a>&gt;
     632</pre><div id="rfc.figure.u.2"></div><pre class="inline">  comment       = &lt;comment, defined in <a href="#Part1" id="rfc.xref.Part1.5"><cite title="HTTP/1.1, part 1: URIs, Connections, and Message Parsing">[Part1]</cite></a>, <a href="p1-messaging.html#basic.rules" title="Basic Rules">Section 2.2</a>&gt;
     633  quoted-string = &lt;quoted-string, defined in <a href="#Part1" id="rfc.xref.Part1.6"><cite title="HTTP/1.1, part 1: URIs, Connections, and Message Parsing">[Part1]</cite></a>, <a href="p1-messaging.html#basic.rules" title="Basic Rules">Section 2.2</a>&gt;
     634  token         = &lt;token, defined in <a href="#Part1" id="rfc.xref.Part1.7"><cite title="HTTP/1.1, part 1: URIs, Connections, and Message Parsing">[Part1]</cite></a>, <a href="p1-messaging.html#basic.rules" title="Basic Rules">Section 2.2</a>&gt;
     635</pre><h1 id="rfc.section.3"><a href="#rfc.section.3">3.</a>&nbsp;<a id="method" href="#method">Method</a></h1>
     636      <p id="rfc.section.3.p.1">The Method token indicates the method to be performed on the resource identified by the Request-URI. The method is case-sensitive.</p>
     637      <div id="rfc.figure.u.3"></div><pre class="inline"><span id="rfc.iref.g.1"></span><span id="rfc.iref.g.2"></span>  Method         = "OPTIONS"                ; <a href="#OPTIONS" id="rfc.xref.OPTIONS.1" title="OPTIONS">Section&nbsp;8.2</a>
     638                 | "GET"                    ; <a href="#GET" id="rfc.xref.GET.1" title="GET">Section&nbsp;8.3</a>
     639                 | "HEAD"                   ; <a href="#HEAD" id="rfc.xref.HEAD.1" title="HEAD">Section&nbsp;8.4</a>
     640                 | "POST"                   ; <a href="#POST" id="rfc.xref.POST.1" title="POST">Section&nbsp;8.5</a>
     641                 | "PUT"                    ; <a href="#PUT" id="rfc.xref.PUT.1" title="PUT">Section&nbsp;8.6</a>
     642                 | "DELETE"                 ; <a href="#DELETE" id="rfc.xref.DELETE.1" title="DELETE">Section&nbsp;8.7</a>
     643                 | "TRACE"                  ; <a href="#TRACE" id="rfc.xref.TRACE.1" title="TRACE">Section&nbsp;8.8</a>
     644                 | "CONNECT"                ; <a href="#CONNECT" id="rfc.xref.CONNECT.1" title="CONNECT">Section&nbsp;8.9</a>
    636645                 | extension-method
    637646  extension-method = token
    638 </pre><p id="rfc.section.2.p.3">The list of methods allowed by a resource can be specified in an Allow header field (<a href="#header.allow" id="rfc.xref.header.allow.1" title="Allow">Section&nbsp;9.1</a>). The return code of the response always notifies the client whether a method is currently allowed on a resource, since the
     647</pre><p id="rfc.section.3.p.3">The list of methods allowed by a resource can be specified in an Allow header field (<a href="#header.allow" id="rfc.xref.header.allow.1" title="Allow">Section&nbsp;10.1</a>). The return code of the response always notifies the client whether a method is currently allowed on a resource, since the
    639648         set of allowed methods can change dynamically. An origin server <em class="bcp14">SHOULD</em> return the status code 405 (Method Not Allowed) if the method is known by the origin server but not allowed for the requested
    640649         resource, and 501 (Not Implemented) if the method is unrecognized or not implemented by the origin server. The methods GET
    641          and HEAD <em class="bcp14">MUST</em> be supported by all general-purpose servers. All other methods are <em class="bcp14">OPTIONAL</em>; however, if the above methods are implemented, they <em class="bcp14">MUST</em> be implemented with the same semantics as those specified in <a href="#method.definitions" title="Method Definitions">Section&nbsp;7</a>.
    642       </p>
    643       <h1 id="rfc.section.3"><a href="#rfc.section.3">3.</a>&nbsp;<a id="request.header.fields" href="#request.header.fields">Request Header Fields</a></h1>
    644       <p id="rfc.section.3.p.1">The request-header fields allow the client to pass additional information about the request, and about the client itself,
     650         and HEAD <em class="bcp14">MUST</em> be supported by all general-purpose servers. All other methods are <em class="bcp14">OPTIONAL</em>; however, if the above methods are implemented, they <em class="bcp14">MUST</em> be implemented with the same semantics as those specified in <a href="#method.definitions" title="Method Definitions">Section&nbsp;8</a>.
     651      </p>
     652      <h1 id="rfc.section.4"><a href="#rfc.section.4">4.</a>&nbsp;<a id="request.header.fields" href="#request.header.fields">Request Header Fields</a></h1>
     653      <p id="rfc.section.4.p.1">The request-header fields allow the client to pass additional information about the request, and about the client itself,
    645654         to the server. These fields act as request modifiers, with semantics equivalent to the parameters on a programming language
    646655         method invocation.
    647656      </p>
    648       <div id="rfc.figure.u.2"></div><pre class="inline"><span id="rfc.iref.g.3"></span>  request-header = Accept                   ; <a href="#Part3" id="rfc.xref.Part3.1"><cite title="HTTP/1.1, part 3: Message Payload and Content Negotiation">[Part3]</cite></a>, <a href="p3-payload.html#header.accept" title="Accept">Section 5.1</a>
    649                  | Accept-Charset           ; <a href="#Part3" id="rfc.xref.Part3.2"><cite title="HTTP/1.1, part 3: Message Payload and Content Negotiation">[Part3]</cite></a>, <a href="p3-payload.html#header.accept-charset" title="Accept-Charset">Section 5.2</a>
    650                  | Accept-Encoding          ; <a href="#Part3" id="rfc.xref.Part3.3"><cite title="HTTP/1.1, part 3: Message Payload and Content Negotiation">[Part3]</cite></a>, <a href="p3-payload.html#header.accept-encoding" title="Accept-Encoding">Section 5.3</a>
    651                  | Accept-Language          ; <a href="#Part3" id="rfc.xref.Part3.4"><cite title="HTTP/1.1, part 3: Message Payload and Content Negotiation">[Part3]</cite></a>, <a href="p3-payload.html#header.accept-language" title="Accept-Language">Section 5.4</a>
    652                  | Authorization            ; <a href="#Part7" id="rfc.xref.Part7.1"><cite title="HTTP/1.1, part 7: Authentication">[Part7]</cite></a>, <a href="p7-auth.html#header.authorization" title="Authorization">Section 3.1</a>
    653                  | Expect                   ; <a href="#header.expect" id="rfc.xref.header.expect.1" title="Expect">Section&nbsp;9.2</a>
    654                  | From                     ; <a href="#header.from" id="rfc.xref.header.from.1" title="From">Section&nbsp;9.3</a>
    655                  | Host                     ; <a href="#Part1" id="rfc.xref.Part1.2"><cite title="HTTP/1.1, part 1: URIs, Connections, and Message Parsing">[Part1]</cite></a>, <a href="p1-messaging.html#header.host" title="Host">Section 8.4</a>
    656                  | If-Match                 ; <a href="#Part4" id="rfc.xref.Part4.1"><cite title="HTTP/1.1, part 4: Conditional Requests">[Part4]</cite></a>, <a href="p4-conditional.html#header.if-match" title="If-Match">Section 6.2</a>
    657                  | If-Modified-Since        ; <a href="#Part4" id="rfc.xref.Part4.2"><cite title="HTTP/1.1, part 4: Conditional Requests">[Part4]</cite></a>, <a href="p4-conditional.html#header.if-modified-since" title="If-Modified-Since">Section 6.3</a>
    658                  | If-None-Match            ; <a href="#Part4" id="rfc.xref.Part4.3"><cite title="HTTP/1.1, part 4: Conditional Requests">[Part4]</cite></a>, <a href="p4-conditional.html#header.if-none-match" title="If-None-Match">Section 6.4</a>
    659                  | If-Range                 ; <a href="#Part5" id="rfc.xref.Part5.1"><cite title="HTTP/1.1, part 5: Range Requests and Partial Responses">[Part5]</cite></a>, <a href="p5-range.html#header.if-range" title="If-Range">Section 5.3</a>
    660                  | If-Unmodified-Since      ; <a href="#Part4" id="rfc.xref.Part4.4"><cite title="HTTP/1.1, part 4: Conditional Requests">[Part4]</cite></a>, <a href="p4-conditional.html#header.if-unmodified-since" title="If-Unmodified-Since">Section 6.5</a>
    661                  | Max-Forwards             ; <a href="#header.max-forwards" id="rfc.xref.header.max-forwards.1" title="Max-Forwards">Section&nbsp;9.5</a>
    662                  | Proxy-Authorization      ; <a href="#Part7" id="rfc.xref.Part7.2"><cite title="HTTP/1.1, part 7: Authentication">[Part7]</cite></a>, <a href="p7-auth.html#header.proxy-authorization" title="Proxy-Authorization">Section 3.3</a>
    663                  | Range                    ; <a href="#Part5" id="rfc.xref.Part5.2"><cite title="HTTP/1.1, part 5: Range Requests and Partial Responses">[Part5]</cite></a>, <a href="p5-range.html#header.range" title="Range">Section 5.4</a>
    664                  | Referer                  ; <a href="#header.referer" id="rfc.xref.header.referer.1" title="Referer">Section&nbsp;9.6</a>
    665                  | TE                       ; <a href="#Part1" id="rfc.xref.Part1.3"><cite title="HTTP/1.1, part 1: URIs, Connections, and Message Parsing">[Part1]</cite></a>, <a href="p1-messaging.html#header.upgrade" title="Upgrade">Section 8.8</a>
    666                  | User-Agent               ; <a href="#header.user-agent" id="rfc.xref.header.user-agent.1" title="User-Agent">Section&nbsp;9.9</a>
    667 </pre><p id="rfc.section.3.p.3">Request-header field names can be extended reliably only in combination with a change in the protocol version. However, new
     657      <div id="rfc.figure.u.4"></div><pre class="inline"><span id="rfc.iref.g.3"></span>  request-header = Accept                   ; <a href="#Part3" id="rfc.xref.Part3.1"><cite title="HTTP/1.1, part 3: Message Payload and Content Negotiation">[Part3]</cite></a>, <a href="p3-payload.html#header.accept" title="Accept">Section 6.1</a>
     658                 | Accept-Charset           ; <a href="#Part3" id="rfc.xref.Part3.2"><cite title="HTTP/1.1, part 3: Message Payload and Content Negotiation">[Part3]</cite></a>, <a href="p3-payload.html#header.accept-charset" title="Accept-Charset">Section 6.2</a>
     659                 | Accept-Encoding          ; <a href="#Part3" id="rfc.xref.Part3.3"><cite title="HTTP/1.1, part 3: Message Payload and Content Negotiation">[Part3]</cite></a>, <a href="p3-payload.html#header.accept-encoding" title="Accept-Encoding">Section 6.3</a>
     660                 | Accept-Language          ; <a href="#Part3" id="rfc.xref.Part3.4"><cite title="HTTP/1.1, part 3: Message Payload and Content Negotiation">[Part3]</cite></a>, <a href="p3-payload.html#header.accept-language" title="Accept-Language">Section 6.4</a>
     661                 | Authorization            ; <a href="#Part7" id="rfc.xref.Part7.1"><cite title="HTTP/1.1, part 7: Authentication">[Part7]</cite></a>, <a href="p7-auth.html#header.authorization" title="Authorization">Section 4.1</a>
     662                 | Expect                   ; <a href="#header.expect" id="rfc.xref.header.expect.1" title="Expect">Section&nbsp;10.2</a>
     663                 | From                     ; <a href="#header.from" id="rfc.xref.header.from.1" title="From">Section&nbsp;10.3</a>
     664                 | Host                     ; <a href="#Part1" id="rfc.xref.Part1.8"><cite title="HTTP/1.1, part 1: URIs, Connections, and Message Parsing">[Part1]</cite></a>, <a href="p1-messaging.html#header.host" title="Host">Section 8.4</a>
     665                 | If-Match                 ; <a href="#Part4" id="rfc.xref.Part4.1"><cite title="HTTP/1.1, part 4: Conditional Requests">[Part4]</cite></a>, <a href="p4-conditional.html#header.if-match" title="If-Match">Section 7.2</a>
     666                 | If-Modified-Since        ; <a href="#Part4" id="rfc.xref.Part4.2"><cite title="HTTP/1.1, part 4: Conditional Requests">[Part4]</cite></a>, <a href="p4-conditional.html#header.if-modified-since" title="If-Modified-Since">Section 7.3</a>
     667                 | If-None-Match            ; <a href="#Part4" id="rfc.xref.Part4.3"><cite title="HTTP/1.1, part 4: Conditional Requests">[Part4]</cite></a>, <a href="p4-conditional.html#header.if-none-match" title="If-None-Match">Section 7.4</a>
     668                 | If-Range                 ; <a href="#Part5" id="rfc.xref.Part5.1"><cite title="HTTP/1.1, part 5: Range Requests and Partial Responses">[Part5]</cite></a>, <a href="p5-range.html#header.if-range" title="If-Range">Section 6.3</a>
     669                 | If-Unmodified-Since      ; <a href="#Part4" id="rfc.xref.Part4.4"><cite title="HTTP/1.1, part 4: Conditional Requests">[Part4]</cite></a>, <a href="p4-conditional.html#header.if-unmodified-since" title="If-Unmodified-Since">Section 7.5</a>
     670                 | Max-Forwards             ; <a href="#header.max-forwards" id="rfc.xref.header.max-forwards.1" title="Max-Forwards">Section&nbsp;10.5</a>
     671                 | Proxy-Authorization      ; <a href="#Part7" id="rfc.xref.Part7.2"><cite title="HTTP/1.1, part 7: Authentication">[Part7]</cite></a>, <a href="p7-auth.html#header.proxy-authorization" title="Proxy-Authorization">Section 4.3</a>
     672                 | Range                    ; <a href="#Part5" id="rfc.xref.Part5.2"><cite title="HTTP/1.1, part 5: Range Requests and Partial Responses">[Part5]</cite></a>, <a href="p5-range.html#header.range" title="Range">Section 6.4</a>
     673                 | Referer                  ; <a href="#header.referer" id="rfc.xref.header.referer.1" title="Referer">Section&nbsp;10.6</a>
     674                 | TE                       ; <a href="#Part1" id="rfc.xref.Part1.9"><cite title="HTTP/1.1, part 1: URIs, Connections, and Message Parsing">[Part1]</cite></a>, <a href="p1-messaging.html#header.upgrade" title="Upgrade">Section 8.8</a>
     675                 | User-Agent               ; <a href="#header.user-agent" id="rfc.xref.header.user-agent.1" title="User-Agent">Section&nbsp;10.9</a>
     676</pre><p id="rfc.section.4.p.3">Request-header field names can be extended reliably only in combination with a change in the protocol version. However, new
    668677         or experimental header fields <em class="bcp14">MAY</em> be given the semantics of request-header fields if all parties in the communication recognize them to be request-header fields.
    669678         Unrecognized header fields are treated as entity-header fields.
    670679      </p>
    671       <h1 id="rfc.section.4"><a href="#rfc.section.4">4.</a>&nbsp;<a id="status.code.and.reason.phrase" href="#status.code.and.reason.phrase">Status Code and Reason Phrase</a></h1>
    672       <p id="rfc.section.4.p.1">The Status-Code element is a 3-digit integer result code of the attempt to understand and satisfy the request. The status
    673          codes listed below are defined in <a href="#status.codes" title="Status Code Definitions">Section&nbsp;8</a>. The Reason-Phrase is intended to give a short textual description of the Status-Code. The Status-Code is intended for use
     680      <h1 id="rfc.section.5"><a href="#rfc.section.5">5.</a>&nbsp;<a id="status.code.and.reason.phrase" href="#status.code.and.reason.phrase">Status Code and Reason Phrase</a></h1>
     681      <p id="rfc.section.5.p.1">The Status-Code element is a 3-digit integer result code of the attempt to understand and satisfy the request. The status
     682         codes listed below are defined in <a href="#status.codes" title="Status Code Definitions">Section&nbsp;9</a>. The Reason-Phrase is intended to give a short textual description of the Status-Code. The Status-Code is intended for use
    674683         by automata and the Reason-Phrase is intended for the human user. The client is not required to examine or display the Reason-Phrase.
    675684      </p>
    676       <p id="rfc.section.4.p.2">The individual values of the numeric status codes defined for HTTP/1.1, and an example set of corresponding Reason-Phrase's,
     685      <p id="rfc.section.5.p.2">The individual values of the numeric status codes defined for HTTP/1.1, and an example set of corresponding Reason-Phrase's,
    677686         are presented below. The reason phrases listed here are only recommendations -- they <em class="bcp14">MAY</em> be replaced by local equivalents without affecting the protocol.
    678687      </p>
    679       <div id="rfc.figure.u.3"></div><pre class="inline"><span id="rfc.iref.g.4"></span><span id="rfc.iref.g.5"></span><span id="rfc.iref.g.6"></span>  Status-Code    =
    680          "100"  ; <a href="#status.100" id="rfc.xref.status.100.1" title="100 Continue">Section&nbsp;8.1.1</a>: Continue
    681        | "101"  ; <a href="#status.101" id="rfc.xref.status.101.1" title="101 Switching Protocols">Section&nbsp;8.1.2</a>: Switching Protocols
    682        | "200"  ; <a href="#status.200" id="rfc.xref.status.200.1" title="200 OK">Section&nbsp;8.2.1</a>: OK
    683        | "201"  ; <a href="#status.201" id="rfc.xref.status.201.1" title="201 Created">Section&nbsp;8.2.2</a>: Created
    684        | "202"  ; <a href="#status.202" id="rfc.xref.status.202.1" title="202 Accepted">Section&nbsp;8.2.3</a>: Accepted
    685        | "203"  ; <a href="#status.203" id="rfc.xref.status.203.1" title="203 Non-Authoritative Information">Section&nbsp;8.2.4</a>: Non-Authoritative Information
    686        | "204"  ; <a href="#status.204" id="rfc.xref.status.204.1" title="204 No Content">Section&nbsp;8.2.5</a>: No Content
    687        | "205"  ; <a href="#status.205" id="rfc.xref.status.205.1" title="205 Reset Content">Section&nbsp;8.2.6</a>: Reset Content
    688        | "206"  ; <a href="#status.206" id="rfc.xref.status.206.1" title="206 Partial Content">Section&nbsp;8.2.7</a>: Partial Content
    689        | "300"  ; <a href="#status.300" id="rfc.xref.status.300.1" title="300 Multiple Choices">Section&nbsp;8.3.1</a>: Multiple Choices
    690        | "301"  ; <a href="#status.301" id="rfc.xref.status.301.1" title="301 Moved Permanently">Section&nbsp;8.3.2</a>: Moved Permanently
    691        | "302"  ; <a href="#status.302" id="rfc.xref.status.302.1" title="302 Found">Section&nbsp;8.3.3</a>: Found
    692        | "303"  ; <a href="#status.303" id="rfc.xref.status.303.1" title="303 See Other">Section&nbsp;8.3.4</a>: See Other
    693        | "304"  ; <a href="#status.304" id="rfc.xref.status.304.1" title="304 Not Modified">Section&nbsp;8.3.5</a>: Not Modified
    694        | "305"  ; <a href="#status.305" id="rfc.xref.status.305.1" title="305 Use Proxy">Section&nbsp;8.3.6</a>: Use Proxy
    695        | "307"  ; <a href="#status.307" id="rfc.xref.status.307.1" title="307 Temporary Redirect">Section&nbsp;8.3.8</a>: Temporary Redirect
    696        | "400"  ; <a href="#status.400" id="rfc.xref.status.400.1" title="400 Bad Request">Section&nbsp;8.4.1</a>: Bad Request
    697        | "401"  ; <a href="#status.401" id="rfc.xref.status.401.1" title="401 Unauthorized">Section&nbsp;8.4.2</a>: Unauthorized
    698        | "402"  ; <a href="#status.402" id="rfc.xref.status.402.1" title="402 Payment Required">Section&nbsp;8.4.3</a>: Payment Required
    699        | "403"  ; <a href="#status.403" id="rfc.xref.status.403.1" title="403 Forbidden">Section&nbsp;8.4.4</a>: Forbidden
    700        | "404"  ; <a href="#status.404" id="rfc.xref.status.404.1" title="404 Not Found">Section&nbsp;8.4.5</a>: Not Found
    701        | "405"  ; <a href="#status.405" id="rfc.xref.status.405.1" title="405 Method Not Allowed">Section&nbsp;8.4.6</a>: Method Not Allowed
    702        | "406"  ; <a href="#status.406" id="rfc.xref.status.406.1" title="406 Not Acceptable">Section&nbsp;8.4.7</a>: Not Acceptable
    703        | "407"  ; <a href="#status.407" id="rfc.xref.status.407.1" title="407 Proxy Authentication Required">Section&nbsp;8.4.8</a>: Proxy Authentication Required
    704        | "408"  ; <a href="#status.408" id="rfc.xref.status.408.1" title="408 Request Timeout">Section&nbsp;8.4.9</a>: Request Time-out
    705        | "409"  ; <a href="#status.409" id="rfc.xref.status.409.1" title="409 Conflict">Section&nbsp;8.4.10</a>: Conflict
    706        | "410"  ; <a href="#status.410" id="rfc.xref.status.410.1" title="410 Gone">Section&nbsp;8.4.11</a>: Gone
    707        | "411"  ; <a href="#status.411" id="rfc.xref.status.411.1" title="411 Length Required">Section&nbsp;8.4.12</a>: Length Required
    708        | "412"  ; <a href="#status.412" id="rfc.xref.status.412.1" title="412 Precondition Failed">Section&nbsp;8.4.13</a>: Precondition Failed
    709        | "413"  ; <a href="#status.413" id="rfc.xref.status.413.1" title="413 Request Entity Too Large">Section&nbsp;8.4.14</a>: Request Entity Too Large
    710        | "414"  ; <a href="#status.414" id="rfc.xref.status.414.1" title="414 Request-URI Too Long">Section&nbsp;8.4.15</a>: Request-URI Too Large
    711        | "415"  ; <a href="#status.415" id="rfc.xref.status.415.1" title="415 Unsupported Media Type">Section&nbsp;8.4.16</a>: Unsupported Media Type
    712        | "416"  ; <a href="#status.416" id="rfc.xref.status.416.1" title="416 Requested Range Not Satisfiable">Section&nbsp;8.4.17</a>: Requested range not satisfiable
    713        | "417"  ; <a href="#status.417" id="rfc.xref.status.417.1" title="417 Expectation Failed">Section&nbsp;8.4.18</a>: Expectation Failed
    714        | "500"  ; <a href="#status.500" id="rfc.xref.status.500.1" title="500 Internal Server Error">Section&nbsp;8.5.1</a>: Internal Server Error
    715        | "501"  ; <a href="#status.501" id="rfc.xref.status.501.1" title="501 Not Implemented">Section&nbsp;8.5.2</a>: Not Implemented
    716        | "502"  ; <a href="#status.502" id="rfc.xref.status.502.1" title="502 Bad Gateway">Section&nbsp;8.5.3</a>: Bad Gateway
    717        | "503"  ; <a href="#status.503" id="rfc.xref.status.503.1" title="503 Service Unavailable">Section&nbsp;8.5.4</a>: Service Unavailable
    718        | "504"  ; <a href="#status.504" id="rfc.xref.status.504.1" title="504 Gateway Timeout">Section&nbsp;8.5.5</a>: Gateway Time-out
    719        | "505"  ; <a href="#status.505" id="rfc.xref.status.505.1" title="505 HTTP Version Not Supported">Section&nbsp;8.5.6</a>: HTTP Version not supported
     688      <div id="rfc.figure.u.5"></div><pre class="inline"><span id="rfc.iref.g.4"></span><span id="rfc.iref.g.5"></span><span id="rfc.iref.g.6"></span>  Status-Code    =
     689         "100"  ; <a href="#status.100" id="rfc.xref.status.100.1" title="100 Continue">Section&nbsp;9.1.1</a>: Continue
     690       | "101"  ; <a href="#status.101" id="rfc.xref.status.101.1" title="101 Switching Protocols">Section&nbsp;9.1.2</a>: Switching Protocols
     691       | "200"  ; <a href="#status.200" id="rfc.xref.status.200.1" title="200 OK">Section&nbsp;9.2.1</a>: OK
     692       | "201"  ; <a href="#status.201" id="rfc.xref.status.201.1" title="201 Created">Section&nbsp;9.2.2</a>: Created
     693       | "202"  ; <a href="#status.202" id="rfc.xref.status.202.1" title="202 Accepted">Section&nbsp;9.2.3</a>: Accepted
     694       | "203"  ; <a href="#status.203" id="rfc.xref.status.203.1" title="203 Non-Authoritative Information">Section&nbsp;9.2.4</a>: Non-Authoritative Information
     695       | "204"  ; <a href="#status.204" id="rfc.xref.status.204.1" title="204 No Content">Section&nbsp;9.2.5</a>: No Content
     696       | "205"  ; <a href="#status.205" id="rfc.xref.status.205.1" title="205 Reset Content">Section&nbsp;9.2.6</a>: Reset Content
     697       | "206"  ; <a href="#status.206" id="rfc.xref.status.206.1" title="206 Partial Content">Section&nbsp;9.2.7</a>: Partial Content
     698       | "300"  ; <a href="#status.300" id="rfc.xref.status.300.1" title="300 Multiple Choices">Section&nbsp;9.3.1</a>: Multiple Choices
     699       | "301"  ; <a href="#status.301" id="rfc.xref.status.301.1" title="301 Moved Permanently">Section&nbsp;9.3.2</a>: Moved Permanently
     700       | "302"  ; <a href="#status.302" id="rfc.xref.status.302.1" title="302 Found">Section&nbsp;9.3.3</a>: Found
     701       | "303"  ; <a href="#status.303" id="rfc.xref.status.303.1" title="303 See Other">Section&nbsp;9.3.4</a>: See Other
     702       | "304"  ; <a href="#status.304" id="rfc.xref.status.304.1" title="304 Not Modified">Section&nbsp;9.3.5</a>: Not Modified
     703       | "305"  ; <a href="#status.305" id="rfc.xref.status.305.1" title="305 Use Proxy">Section&nbsp;9.3.6</a>: Use Proxy
     704       | "307"  ; <a href="#status.307" id="rfc.xref.status.307.1" title="307 Temporary Redirect">Section&nbsp;9.3.8</a>: Temporary Redirect
     705       | "400"  ; <a href="#status.400" id="rfc.xref.status.400.1" title="400 Bad Request">Section&nbsp;9.4.1</a>: Bad Request
     706       | "401"  ; <a href="#status.401" id="rfc.xref.status.401.1" title="401 Unauthorized">Section&nbsp;9.4.2</a>: Unauthorized
     707       | "402"  ; <a href="#status.402" id="rfc.xref.status.402.1" title="402 Payment Required">Section&nbsp;9.4.3</a>: Payment Required
     708       | "403"  ; <a href="#status.403" id="rfc.xref.status.403.1" title="403 Forbidden">Section&nbsp;9.4.4</a>: Forbidden
     709       | "404"  ; <a href="#status.404" id="rfc.xref.status.404.1" title="404 Not Found">Section&nbsp;9.4.5</a>: Not Found
     710       | "405"  ; <a href="#status.405" id="rfc.xref.status.405.1" title="405 Method Not Allowed">Section&nbsp;9.4.6</a>: Method Not Allowed
     711       | "406"  ; <a href="#status.406" id="rfc.xref.status.406.1" title="406 Not Acceptable">Section&nbsp;9.4.7</a>: Not Acceptable
     712       | "407"  ; <a href="#status.407" id="rfc.xref.status.407.1" title="407 Proxy Authentication Required">Section&nbsp;9.4.8</a>: Proxy Authentication Required
     713       | "408"  ; <a href="#status.408" id="rfc.xref.status.408.1" title="408 Request Timeout">Section&nbsp;9.4.9</a>: Request Time-out
     714       | "409"  ; <a href="#status.409" id="rfc.xref.status.409.1" title="409 Conflict">Section&nbsp;9.4.10</a>: Conflict
     715       | "410"  ; <a href="#status.410" id="rfc.xref.status.410.1" title="410 Gone">Section&nbsp;9.4.11</a>: Gone
     716       | "411"  ; <a href="#status.411" id="rfc.xref.status.411.1" title="411 Length Required">Section&nbsp;9.4.12</a>: Length Required
     717       | "412"  ; <a href="#status.412" id="rfc.xref.status.412.1" title="412 Precondition Failed">Section&nbsp;9.4.13</a>: Precondition Failed
     718       | "413"  ; <a href="#status.413" id="rfc.xref.status.413.1" title="413 Request Entity Too Large">Section&nbsp;9.4.14</a>: Request Entity Too Large
     719       | "414"  ; <a href="#status.414" id="rfc.xref.status.414.1" title="414 Request-URI Too Long">Section&nbsp;9.4.15</a>: Request-URI Too Large
     720       | "415"  ; <a href="#status.415" id="rfc.xref.status.415.1" title="415 Unsupported Media Type">Section&nbsp;9.4.16</a>: Unsupported Media Type
     721       | "416"  ; <a href="#status.416" id="rfc.xref.status.416.1" title="416 Requested Range Not Satisfiable">Section&nbsp;9.4.17</a>: Requested range not satisfiable
     722       | "417"  ; <a href="#status.417" id="rfc.xref.status.417.1" title="417 Expectation Failed">Section&nbsp;9.4.18</a>: Expectation Failed
     723       | "500"  ; <a href="#status.500" id="rfc.xref.status.500.1" title="500 Internal Server Error">Section&nbsp;9.5.1</a>: Internal Server Error
     724       | "501"  ; <a href="#status.501" id="rfc.xref.status.501.1" title="501 Not Implemented">Section&nbsp;9.5.2</a>: Not Implemented
     725       | "502"  ; <a href="#status.502" id="rfc.xref.status.502.1" title="502 Bad Gateway">Section&nbsp;9.5.3</a>: Bad Gateway
     726       | "503"  ; <a href="#status.503" id="rfc.xref.status.503.1" title="503 Service Unavailable">Section&nbsp;9.5.4</a>: Service Unavailable
     727       | "504"  ; <a href="#status.504" id="rfc.xref.status.504.1" title="504 Gateway Timeout">Section&nbsp;9.5.5</a>: Gateway Time-out
     728       | "505"  ; <a href="#status.505" id="rfc.xref.status.505.1" title="505 HTTP Version Not Supported">Section&nbsp;9.5.6</a>: HTTP Version not supported
    720729       | extension-code
    721730
    722731  extension-code = 3DIGIT
    723732  Reason-Phrase  = *&lt;TEXT, excluding CR, LF&gt;
    724 </pre><p id="rfc.section.4.p.4">HTTP status codes are extensible. HTTP applications are not required to understand the meaning of all registered status codes,
     733</pre><p id="rfc.section.5.p.4">HTTP status codes are extensible. HTTP applications are not required to understand the meaning of all registered status codes,
    725734         though such understanding is obviously desirable. However, applications <em class="bcp14">MUST</em> understand the class of any status code, as indicated by the first digit, and treat any unrecognized response as being equivalent
    726735         to the x00 status code of that class, with the exception that an unrecognized response <em class="bcp14">MUST NOT</em> be cached. For example, if an unrecognized status code of 431 is received by the client, it can safely assume that there was
    … …  
    728737         which will explain the unusual status.
    729738      </p>
    730       <h1 id="rfc.section.5"><a href="#rfc.section.5">5.</a>&nbsp;<a id="response.header.fields" href="#response.header.fields">Response Header Fields</a></h1>
    731       <p id="rfc.section.5.p.1">The response-header fields allow the server to pass additional information about the response which cannot be placed in the
     739      <h1 id="rfc.section.6"><a href="#rfc.section.6">6.</a>&nbsp;<a id="response.header.fields" href="#response.header.fields">Response Header Fields</a></h1>
     740      <p id="rfc.section.6.p.1">The response-header fields allow the server to pass additional information about the response which cannot be placed in the
    732741         Status-Line. These header fields give information about the server and about further access to the resource identified by
    733742         the Request-URI.
    734743      </p>
    735       <div id="rfc.figure.u.4"></div><pre class="inline"><span id="rfc.iref.g.7"></span>  response-header = Accept-Ranges           ; <a href="#Part5" id="rfc.xref.Part5.3"><cite title="HTTP/1.1, part 5: Range Requests and Partial Responses">[Part5]</cite></a>, <a href="p5-range.html#header.accept-ranges" title="Accept-Ranges">Section 5.1</a>
    736                   | Age                     ; <a href="#Part6" id="rfc.xref.Part6.1"><cite title="HTTP/1.1, part 6: Caching">[Part6]</cite></a>, <a href="p6-cache.html#header.age" title="Age">Section 15.1</a>
    737                   | ETag                    ; <a href="#Part4" id="rfc.xref.Part4.5"><cite title="HTTP/1.1, part 4: Conditional Requests">[Part4]</cite></a>, <a href="p4-conditional.html#header.etag" title="ETag">Section 6.1</a>
    738                   | Location                ; <a href="#header.location" id="rfc.xref.header.location.1" title="Location">Section&nbsp;9.4</a>
    739                   | Proxy-Authenticate      ; <a href="#Part7" id="rfc.xref.Part7.3"><cite title="HTTP/1.1, part 7: Authentication">[Part7]</cite></a>, <a href="p7-auth.html#header.proxy-authenticate" title="Proxy-Authenticate">Section 3.2</a>
    740                   | Retry-After             ; <a href="#header.retry-after" id="rfc.xref.header.retry-after.1" title="Retry-After">Section&nbsp;9.7</a>
    741                   | Server                  ; <a href="#header.server" id="rfc.xref.header.server.1" title="Server">Section&nbsp;9.8</a>
    742                   | Vary                    ; <a href="#Part6" id="rfc.xref.Part6.2"><cite title="HTTP/1.1, part 6: Caching">[Part6]</cite></a>, <a href="p6-cache.html#header.vary" title="Vary">Section 15.5</a>
    743                   | WWW-Authenticate        ; <a href="#Part7" id="rfc.xref.Part7.4"><cite title="HTTP/1.1, part 7: Authentication">[Part7]</cite></a>, <a href="p7-auth.html#header.www-authenticate" title="WWW-Authenticate">Section 3.4</a>
    744 </pre><p id="rfc.section.5.p.3">Response-header field names can be extended reliably only in combination with a change in the protocol version. However, new
     744      <div id="rfc.figure.u.6"></div><pre class="inline"><span id="rfc.iref.g.7"></span>  response-header = Accept-Ranges           ; <a href="#Part5" id="rfc.xref.Part5.3"><cite title="HTTP/1.1, part 5: Range Requests and Partial Responses">[Part5]</cite></a>, <a href="p5-range.html#header.accept-ranges" title="Accept-Ranges">Section 6.1</a>
     745                  | Age                     ; <a href="#Part6" id="rfc.xref.Part6.1"><cite title="HTTP/1.1, part 6: Caching">[Part6]</cite></a>, <a href="p6-cache.html#header.age" title="Age">Section 16.1</a>
     746                  | ETag                    ; <a href="#Part4" id="rfc.xref.Part4.5"><cite title="HTTP/1.1, part 4: Conditional Requests">[Part4]</cite></a>, <a href="p4-conditional.html#header.etag" title="ETag">Section 7.1</a>
     747                  | Location                ; <a href="#header.location" id="rfc.xref.header.location.1" title="Location">Section&nbsp;10.4</a>
     748                  | Proxy-Authenticate      ; <a href="#Part7" id="rfc.xref.Part7.3"><cite title="HTTP/1.1, part 7: Authentication">[Part7]</cite></a>, <a href="p7-auth.html#header.proxy-authenticate" title="Proxy-Authenticate">Section 4.2</a>
     749                  | Retry-After             ; <a href="#header.retry-after" id="rfc.xref.header.retry-after.1" title="Retry-After">Section&nbsp;10.7</a>
     750                  | Server                  ; <a href="#header.server" id="rfc.xref.header.server.1" title="Server">Section&nbsp;10.8</a>
     751                  | Vary                    ; <a href="#Part6" id="rfc.xref.Part6.2"><cite title="HTTP/1.1, part 6: Caching">[Part6]</cite></a>, <a href="p6-cache.html#header.vary" title="Vary">Section 16.5</a>
     752                  | WWW-Authenticate        ; <a href="#Part7" id="rfc.xref.Part7.4"><cite title="HTTP/1.1, part 7: Authentication">[Part7]</cite></a>, <a href="p7-auth.html#header.www-authenticate" title="WWW-Authenticate">Section 4.4</a>
     753</pre><p id="rfc.section.6.p.3">Response-header field names can be extended reliably only in combination with a change in the protocol version. However, new
    745754         or experimental header fields <em class="bcp14">MAY</em> be given the semantics of response-header fields if all parties in the communication recognize them to be response-header
    746755         fields. Unrecognized header fields are treated as entity-header fields.
    747756      </p>
    748       <h1 id="rfc.section.6"><a href="#rfc.section.6">6.</a>&nbsp;<a id="entity" href="#entity">Entity</a></h1>
    749       <p id="rfc.section.6.p.1">Request and Response messages <em class="bcp14">MAY</em> transfer an entity if not otherwise restricted by the request method or response status code. An entity consists of entity-header
     757      <h1 id="rfc.section.7"><a href="#rfc.section.7">7.</a>&nbsp;<a id="entity" href="#entity">Entity</a></h1>
     758      <p id="rfc.section.7.p.1">Request and Response messages <em class="bcp14">MAY</em> transfer an entity if not otherwise restricted by the request method or response status code. An entity consists of entity-header
    750759         fields and an entity-body, although some responses will only include the entity-headers. HTTP entity-body and entity-header
    751760         fields are defined in <a href="#Part3" id="rfc.xref.Part3.5"><cite title="HTTP/1.1, part 3: Message Payload and Content Negotiation">[Part3]</cite></a>.
    752761      </p>
    753       <p id="rfc.section.6.p.2">An entity-body is only present in a message when a message-body is present, as described in <a href="p1-messaging.html#message.body" title="Message Body">Section 4.3</a> of <a href="#Part1" id="rfc.xref.Part1.4"><cite title="HTTP/1.1, part 1: URIs, Connections, and Message Parsing">[Part1]</cite></a>. The entity-body is obtained from the message-body by decoding any Transfer-Encoding that might have been applied to ensure
     762      <p id="rfc.section.7.p.2">An entity-body is only present in a message when a message-body is present, as described in <a href="p1-messaging.html#message.body" title="Message Body">Section 4.3</a> of <a href="#Part1" id="rfc.xref.Part1.10"><cite title="HTTP/1.1, part 1: URIs, Connections, and Message Parsing">[Part1]</cite></a>. The entity-body is obtained from the message-body by decoding any Transfer-Encoding that might have been applied to ensure
    754763         safe and proper transfer of the message.
    755764      </p>
    756       <h1 id="rfc.section.7"><a href="#rfc.section.7">7.</a>&nbsp;<a id="method.definitions" href="#method.definitions">Method Definitions</a></h1>
    757       <p id="rfc.section.7.p.1">The set of common methods for HTTP/1.1 is defined below. Although this set can be expanded, additional methods cannot be assumed
     765      <h1 id="rfc.section.8"><a href="#rfc.section.8">8.</a>&nbsp;<a id="method.definitions" href="#method.definitions">Method Definitions</a></h1>
     766      <p id="rfc.section.8.p.1">The set of common methods for HTTP/1.1 is defined below. Although this set can be expanded, additional methods cannot be assumed
    758767         to share the same semantics for separately extended clients and servers.
    759768      </p>
    760       <h2 id="rfc.section.7.1"><a href="#rfc.section.7.1">7.1</a>&nbsp;<a id="safe.and.idempotent" href="#safe.and.idempotent">Safe and Idempotent Methods</a></h2>
    761       <h3 id="rfc.section.7.1.1"><a href="#rfc.section.7.1.1">7.1.1</a>&nbsp;<a id="safe.methods" href="#safe.methods">Safe Methods</a></h3>
    762       <p id="rfc.section.7.1.1.p.1">Implementors should be aware that the software represents the user in their interactions over the Internet, and should be
     769      <h2 id="rfc.section.8.1"><a href="#rfc.section.8.1">8.1</a>&nbsp;<a id="safe.and.idempotent" href="#safe.and.idempotent">Safe and Idempotent Methods</a></h2>
     770      <h3 id="rfc.section.8.1.1"><a href="#rfc.section.8.1.1">8.1.1</a>&nbsp;<a id="safe.methods" href="#safe.methods">Safe Methods</a></h3>
     771      <p id="rfc.section.8.1.1.p.1">Implementors should be aware that the software represents the user in their interactions over the Internet, and should be
    763772         careful to allow the user to be aware of any actions they might take which may have an unexpected significance to themselves
    764773         or others.
    765774      </p>
    766       <p id="rfc.section.7.1.1.p.2">In particular, the convention has been established that the GET and HEAD methods <em class="bcp14">SHOULD NOT</em> have the significance of taking an action other than retrieval. These methods ought to be considered "safe". This allows user
     775      <p id="rfc.section.8.1.1.p.2">In particular, the convention has been established that the GET and HEAD methods <em class="bcp14">SHOULD NOT</em> have the significance of taking an action other than retrieval. These methods ought to be considered "safe". This allows user
    767776         agents to represent other methods, such as POST, PUT and DELETE, in a special way, so that the user is made aware of the fact
    768777         that a possibly unsafe action is being requested.
    769778      </p>
    770       <p id="rfc.section.7.1.1.p.3">Naturally, it is not possible to ensure that the server does not generate side-effects as a result of performing a GET request;
     779      <p id="rfc.section.8.1.1.p.3">Naturally, it is not possible to ensure that the server does not generate side-effects as a result of performing a GET request;
    771780         in fact, some dynamic resources consider that a feature. The important distinction here is that the user did not request the
    772781         side-effects, so therefore cannot be held accountable for them.
    773782      </p>
    774       <h3 id="rfc.section.7.1.2"><a href="#rfc.section.7.1.2">7.1.2</a>&nbsp;<a id="idempotent.methods" href="#idempotent.methods">Idempotent Methods</a></h3>
    775       <p id="rfc.section.7.1.2.p.1">Methods can also have the property of "idempotence" in that (aside from error or expiration issues) the side-effects of N
     783      <h3 id="rfc.section.8.1.2"><a href="#rfc.section.8.1.2">8.1.2</a>&nbsp;<a id="idempotent.methods" href="#idempotent.methods">Idempotent Methods</a></h3>
     784      <p id="rfc.section.8.1.2.p.1">Methods can also have the property of "idempotence" in that (aside from error or expiration issues) the side-effects of N
    776785         &gt; 0 identical requests is the same as for a single request. The methods GET, HEAD, PUT and DELETE share this property. Also,
    777786         the methods OPTIONS and TRACE <em class="bcp14">SHOULD NOT</em> have side effects, and so are inherently idempotent.
    778787      </p>
    779       <p id="rfc.section.7.1.2.p.2">However, it is possible that a sequence of several requests is non-idempotent, even if all of the methods executed in that
     788      <p id="rfc.section.8.1.2.p.2">However, it is possible that a sequence of several requests is non-idempotent, even if all of the methods executed in that
    780789         sequence are idempotent. (A sequence is idempotent if a single execution of the entire sequence always yields a result that
    781790         is not changed by a reexecution of all, or part, of that sequence.) For example, a sequence is non-idempotent if its result
    782791         depends on a value that is later modified in the same sequence.
    783792      </p>
    784       <p id="rfc.section.7.1.2.p.3">A sequence that never has side effects is idempotent, by definition (provided that no concurrent operations are being executed
     793      <p id="rfc.section.8.1.2.p.3">A sequence that never has side effects is idempotent, by definition (provided that no concurrent operations are being executed
    785794         on the same set of resources).
    786795      </p>
    787796      <div id="rfc.iref.o.1"></div>
    788797      <div id="rfc.iref.m.1"></div>
    789       <h2 id="rfc.section.7.2"><a href="#rfc.section.7.2">7.2</a>&nbsp;<a id="OPTIONS" href="#OPTIONS">OPTIONS</a></h2>
    790       <p id="rfc.section.7.2.p.1">The OPTIONS method represents a request for information about the communication options available on the request/response
     798      <h2 id="rfc.section.8.2"><a href="#rfc.section.8.2">8.2</a>&nbsp;<a id="OPTIONS" href="#OPTIONS">OPTIONS</a></h2>
     799      <p id="rfc.section.8.2.p.1">The OPTIONS method represents a request for information about the communication options available on the request/response
    791800         chain identified by the Request-URI. This method allows the client to determine the options and/or requirements associated
    792801         with a resource, or the capabilities of a server, without implying a resource action or initiating a resource retrieval.
    793802      </p>
    794       <p id="rfc.section.7.2.p.2">Responses to this method are not cacheable.</p>
    795       <p id="rfc.section.7.2.p.3">If the OPTIONS request includes an entity-body (as indicated by the presence of Content-Length or Transfer-Encoding), then
     803      <p id="rfc.section.8.2.p.2">Responses to this method are not cacheable.</p>
     804      <p id="rfc.section.8.2.p.3">If the OPTIONS request includes an entity-body (as indicated by the presence of Content-Length or Transfer-Encoding), then
    796805         the media type <em class="bcp14">MUST</em> be indicated by a Content-Type field. Although this specification does not define any use for such a body, future extensions
    797806         to HTTP might use the OPTIONS body to make more detailed queries on the server. A server that does not support such an extension <em class="bcp14">MAY</em> discard the request body.
    798807      </p>
    799       <p id="rfc.section.7.2.p.4">If the Request-URI is an asterisk ("*"), the OPTIONS request is intended to apply to the server in general rather than to
     808      <p id="rfc.section.8.2.p.4">If the Request-URI is an asterisk ("*"), the OPTIONS request is intended to apply to the server in general rather than to
    800809         a specific resource. Since a server's communication options typically depend on the resource, the "*" request is only useful
    801810         as a "ping" or "no-op" type of method; it does nothing beyond allowing the client to test the capabilities of the server.
    802811         For example, this can be used to test a proxy for HTTP/1.1 compliance (or lack thereof).
    803812      </p>
    804       <p id="rfc.section.7.2.p.5">If the Request-URI is not an asterisk, the OPTIONS request applies only to the options that are available when communicating
     813      <p id="rfc.section.8.2.p.5">If the Request-URI is not an asterisk, the OPTIONS request applies only to the options that are available when communicating
    805814         with that resource.
    806815      </p>
    807       <p id="rfc.section.7.2.p.6">A 200 response <em class="bcp14">SHOULD</em> include any header fields that indicate optional features implemented by the server and applicable to that resource (e.g.,
     816      <p id="rfc.section.8.2.p.6">A 200 response <em class="bcp14">SHOULD</em> include any header fields that indicate optional features implemented by the server and applicable to that resource (e.g.,
    808817         Allow), possibly including extensions not defined by this specification. The response body, if any, <em class="bcp14">SHOULD</em> also include information about the communication options. The format for such a body is not defined by this specification,
    809818         but might be defined by future extensions to HTTP. Content negotiation <em class="bcp14">MAY</em> be used to select the appropriate response format. If no response body is included, the response <em class="bcp14">MUST</em> include a Content-Length field with a field-value of "0".
    810819      </p>
    811       <p id="rfc.section.7.2.p.7">The Max-Forwards request-header field <em class="bcp14">MAY</em> be used to target a specific proxy in the request chain. When a proxy receives an OPTIONS request on an absoluteURI for which
     820      <p id="rfc.section.8.2.p.7">The Max-Forwards request-header field <em class="bcp14">MAY</em> be used to target a specific proxy in the request chain. When a proxy receives an OPTIONS request on an absoluteURI for which
    812821         request forwarding is permitted, the proxy <em class="bcp14">MUST</em> check for a Max-Forwards field. If the Max-Forwards field-value is zero ("0"), the proxy <em class="bcp14">MUST NOT</em> forward the message; instead, the proxy <em class="bcp14">SHOULD</em> respond with its own communication options. If the Max-Forwards field-value is an integer greater than zero, the proxy <em class="bcp14">MUST</em> decrement the field-value when it forwards the request. If no Max-Forwards field is present in the request, then the forwarded
    813822         request <em class="bcp14">MUST NOT</em> include a Max-Forwards field.
    … …  
    815824      <div id="rfc.iref.g.8"></div>
    816825      <div id="rfc.iref.m.2"></div>
    817       <h2 id="rfc.section.7.3"><a href="#rfc.section.7.3">7.3</a>&nbsp;<a id="GET" href="#GET">GET</a></h2>
    818       <p id="rfc.section.7.3.p.1">The GET method means retrieve whatever information (in the form of an entity) is identified by the Request-URI. If the Request-URI
     826      <h2 id="rfc.section.8.3"><a href="#rfc.section.8.3">8.3</a>&nbsp;<a id="GET" href="#GET">GET</a></h2>
     827      <p id="rfc.section.8.3.p.1">The GET method means retrieve whatever information (in the form of an entity) is identified by the Request-URI. If the Request-URI
    819828         refers to a data-producing process, it is the produced data which shall be returned as the entity in the response and not
    820829         the source text of the process, unless that text happens to be the output of the process.
    821830      </p>
    822       <p id="rfc.section.7.3.p.2">The semantics of the GET method change to a "conditional GET" if the request message includes an If-Modified-Since, If-Unmodified-Since,
     831      <p id="rfc.section.8.3.p.2">The semantics of the GET method change to a "conditional GET" if the request message includes an If-Modified-Since, If-Unmodified-Since,
    823832         If-Match, If-None-Match, or If-Range header field. A conditional GET method requests that the entity be transferred only under
    824833         the circumstances described by the conditional header field(s). The conditional GET method is intended to reduce unnecessary
    … …  
    826835         held by the client.
    827836      </p>
    828       <p id="rfc.section.7.3.p.3">The semantics of the GET method change to a "partial GET" if the request message includes a Range header field. A partial
    829          GET requests that only part of the entity be transferred, as described in <a href="p5-range.html#header.range" title="Range">Section 5.4</a> of <a href="#Part5" id="rfc.xref.Part5.4"><cite title="HTTP/1.1, part 5: Range Requests and Partial Responses">[Part5]</cite></a>. The partial GET method is intended to reduce unnecessary network usage by allowing partially-retrieved entities to be completed
     837      <p id="rfc.section.8.3.p.3">The semantics of the GET method change to a "partial GET" if the request message includes a Range header field. A partial
     838         GET requests that only part of the entity be transferred, as described in <a href="p5-range.html#header.range" title="Range">Section 6.4</a> of <a href="#Part5" id="rfc.xref.Part5.4"><cite title="HTTP/1.1, part 5: Range Requests and Partial Responses">[Part5]</cite></a>. The partial GET method is intended to reduce unnecessary network usage by allowing partially-retrieved entities to be completed
    830839         without transferring data already held by the client.
    831840      </p>
    832       <p id="rfc.section.7.3.p.4">The response to a GET request is cacheable if and only if it meets the requirements for HTTP caching described in <a href="#Part6" id="rfc.xref.Part6.3"><cite title="HTTP/1.1, part 6: Caching">[Part6]</cite></a>.
    833       </p>
    834       <p id="rfc.section.7.3.p.5">See <a href="#encoding.sensitive.information.in.uris" title="Encoding Sensitive Information in URIs">Section&nbsp;11.2</a> for security considerations when used for forms.
     841      <p id="rfc.section.8.3.p.4">The response to a GET request is cacheable if and only if it meets the requirements for HTTP caching described in <a href="#Part6" id="rfc.xref.Part6.3"><cite title="HTTP/1.1, part 6: Caching">[Part6]</cite></a>.
     842      </p>
     843      <p id="rfc.section.8.3.p.5">See <a href="#encoding.sensitive.information.in.uris" title="Encoding Sensitive Information in URIs">Section&nbsp;12.2</a> for security considerations when used for forms.
    835844      </p>
    836845      <div id="rfc.iref.h.1"></div>
    837846      <div id="rfc.iref.m.3"></div>
    838       <h2 id="rfc.section.7.4"><a href="#rfc.section.7.4">7.4</a>&nbsp;<a id="HEAD" href="#HEAD">HEAD</a></h2>
    839       <p id="rfc.section.7.4.p.1">The HEAD method is identical to GET except that the server <em class="bcp14">MUST NOT</em> return a message-body in the response. The metainformation contained in the HTTP headers in response to a HEAD request <em class="bcp14">SHOULD</em> be identical to the information sent in response to a GET request. This method can be used for obtaining metainformation about
     847      <h2 id="rfc.section.8.4"><a href="#rfc.section.8.4">8.4</a>&nbsp;<a id="HEAD" href="#HEAD">HEAD</a></h2>
     848      <p id="rfc.section.8.4.p.1">The HEAD method is identical to GET except that the server <em class="bcp14">MUST NOT</em> return a message-body in the response. The metainformation contained in the HTTP headers in response to a HEAD request <em class="bcp14">SHOULD</em> be identical to the information sent in response to a GET request. This method can be used for obtaining metainformation about
    840849         the entity implied by the request without transferring the entity-body itself. This method is often used for testing hypertext
    841850         links for validity, accessibility, and recent modification.
    842851      </p>
    843       <p id="rfc.section.7.4.p.2">The response to a HEAD request <em class="bcp14">MAY</em> be cacheable in the sense that the information contained in the response <em class="bcp14">MAY</em> be used to update a previously cached entity from that resource. If the new field values indicate that the cached entity differs
     852      <p id="rfc.section.8.4.p.2">The response to a HEAD request <em class="bcp14">MAY</em> be cacheable in the sense that the information contained in the response <em class="bcp14">MAY</em> be used to update a previously cached entity from that resource. If the new field values indicate that the cached entity differs
    844853         from the current entity (as would be indicated by a change in Content-Length, Content-MD5, ETag or Last-Modified), then the
    845854         cache <em class="bcp14">MUST</em> treat the cache entry as stale.
    … …  
    847856      <div id="rfc.iref.p.1"></div>
    848857      <div id="rfc.iref.m.4"></div>
    849       <h2 id="rfc.section.7.5"><a href="#rfc.section.7.5">7.5</a>&nbsp;<a id="POST" href="#POST">POST</a></h2>
    850       <p id="rfc.section.7.5.p.1">The POST method is used to request that the origin server accept the entity enclosed in the request as data to be processed
     858      <h2 id="rfc.section.8.5"><a href="#rfc.section.8.5">8.5</a>&nbsp;<a id="POST" href="#POST">POST</a></h2>
     859      <p id="rfc.section.8.5.p.1">The POST method is used to request that the origin server accept the entity enclosed in the request as data to be processed
    851860         by the resource identified by the Request-URI in the Request-Line. POST is designed to allow a uniform method to cover the
    852861         following functions:
    … …  
    858867         <li>Extending a database through an append operation.</li>
    859868      </ul>
    860       <p id="rfc.section.7.5.p.2">The actual function performed by the POST method is determined by the server and is usually dependent on the Request-URI.</p>
    861       <p id="rfc.section.7.5.p.3">The action performed by the POST method might not result in a resource that can be identified by a URI. In this case, either
     869      <p id="rfc.section.8.5.p.2">The actual function performed by the POST method is determined by the server and is usually dependent on the Request-URI.</p>
     870      <p id="rfc.section.8.5.p.3">The action performed by the POST method might not result in a resource that can be identified by a URI. In this case, either
    862871         200 (OK) or 204 (No Content) is the appropriate response status, depending on whether or not the response includes an entity
    863872         that describes the result.
    864873      </p>
    865       <p id="rfc.section.7.5.p.4">If a resource has been created on the origin server, the response <em class="bcp14">SHOULD</em> be 201 (Created) and contain an entity which describes the status of the request and refers to the new resource, and a Location
    866          header (see <a href="#header.location" id="rfc.xref.header.location.2" title="Location">Section&nbsp;9.4</a>).
    867       </p>
    868       <p id="rfc.section.7.5.p.5">Responses to this method are not cacheable, unless the response includes appropriate Cache-Control or Expires header fields.
     874      <p id="rfc.section.8.5.p.4">If a resource has been created on the origin server, the response <em class="bcp14">SHOULD</em> be 201 (Created) and contain an entity which describes the status of the request and refers to the new resource, and a Location
     875         header (see <a href="#header.location" id="rfc.xref.header.location.2" title="Location">Section&nbsp;10.4</a>).
     876      </p>
     877      <p id="rfc.section.8.5.p.5">Responses to this method are not cacheable, unless the response includes appropriate Cache-Control or Expires header fields.
    869878         However, the 303 (See Other) response can be used to direct the user agent to retrieve a cacheable resource.
    870879      </p>
    871880      <div id="rfc.iref.p.2"></div>
    872881      <div id="rfc.iref.m.5"></div>
    873       <h2 id="rfc.section.7.6"><a href="#rfc.section.7.6">7.6</a>&nbsp;<a id="PUT" href="#PUT">PUT</a></h2>
    874       <p id="rfc.section.7.6.p.1">The PUT method requests that the enclosed entity be stored under the supplied Request-URI. If the Request-URI refers to an
     882      <h2 id="rfc.section.8.6"><a href="#rfc.section.8.6">8.6</a>&nbsp;<a id="PUT" href="#PUT">PUT</a></h2>
     883      <p id="rfc.section.8.6.p.1">The PUT method requests that the enclosed entity be stored under the supplied Request-URI. If the Request-URI refers to an
    875884         already existing resource, the enclosed entity <em class="bcp14">SHOULD</em> be considered as a modified version of the one residing on the origin server. If the Request-URI does not point to an existing
    876885         resource, and that URI is capable of being defined as a new resource by the requesting user agent, the origin server can create
    … …  
    879888         an appropriate error response <em class="bcp14">SHOULD</em> be given that reflects the nature of the problem. The recipient of the entity <em class="bcp14">MUST NOT</em> ignore any Content-* (e.g. Content-Range) headers that it does not understand or implement and <em class="bcp14">MUST</em> return a 501 (Not Implemented) response in such cases.
    880889      </p>
    881       <p id="rfc.section.7.6.p.2">If the request passes through a cache and the Request-URI identifies one or more currently cached entities, those entries <em class="bcp14">SHOULD</em> be treated as stale. Responses to this method are not cacheable.
    882       </p>
    883       <p id="rfc.section.7.6.p.3">The fundamental difference between the POST and PUT requests is reflected in the different meaning of the Request-URI. The
     890      <p id="rfc.section.8.6.p.2">If the request passes through a cache and the Request-URI identifies one or more currently cached entities, those entries <em class="bcp14">SHOULD</em> be treated as stale. Responses to this method are not cacheable.
     891      </p>
     892      <p id="rfc.section.8.6.p.3">The fundamental difference between the POST and PUT requests is reflected in the different meaning of the Request-URI. The
    884893         URI in a POST request identifies the resource that will handle the enclosed entity. That resource might be a data-accepting
    885894         process, a gateway to some other protocol, or a separate entity that accepts annotations. In contrast, the URI in a PUT request
    … …  
    887896         it <em class="bcp14">MUST</em> send a 301 (Moved Permanently) response; the user agent <em class="bcp14">MAY</em> then make its own decision regarding whether or not to redirect the request.
    888897      </p>
    889       <p id="rfc.section.7.6.p.4">A single resource <em class="bcp14">MAY</em> be identified by many different URIs. For example, an article might have a URI for identifying "the current version" which
     898      <p id="rfc.section.8.6.p.4">A single resource <em class="bcp14">MAY</em> be identified by many different URIs. For example, an article might have a URI for identifying "the current version" which
    890899         is separate from the URI identifying each particular version. In this case, a PUT request on a general URI might result in
    891900         several other URIs being defined by the origin server.
    892901      </p>
    893       <p id="rfc.section.7.6.p.5">HTTP/1.1 does not define how a PUT method affects the state of an origin server.</p>
    894       <p id="rfc.section.7.6.p.6">Unless otherwise specified for a particular entity-header, the entity-headers in the PUT request <em class="bcp14">SHOULD</em> be applied to the resource created or modified by the PUT.
     902      <p id="rfc.section.8.6.p.5">HTTP/1.1 does not define how a PUT method affects the state of an origin server.</p>
     903      <p id="rfc.section.8.6.p.6">Unless otherwise specified for a particular entity-header, the entity-headers in the PUT request <em class="bcp14">SHOULD</em> be applied to the resource created or modified by the PUT.
    895904      </p>
    896905      <div id="rfc.iref.d.1"></div>
    897906      <div id="rfc.iref.m.6"></div>
    898       <h2 id="rfc.section.7.7"><a href="#rfc.section.7.7">7.7</a>&nbsp;<a id="DELETE" href="#DELETE">DELETE</a></h2>
    899       <p id="rfc.section.7.7.p.1">The DELETE method requests that the origin server delete the resource identified by the Request-URI. This method <em class="bcp14">MAY</em> be overridden by human intervention (or other means) on the origin server. The client cannot be guaranteed that the operation
     907      <h2 id="rfc.section.8.7"><a href="#rfc.section.8.7">8.7</a>&nbsp;<a id="DELETE" href="#DELETE">DELETE</a></h2>
     908      <p id="rfc.section.8.7.p.1">The DELETE method requests that the origin server delete the resource identified by the Request-URI. This method <em class="bcp14">MAY</em> be overridden by human intervention (or other means) on the origin server. The client cannot be guaranteed that the operation
    900909         has been carried out, even if the status code returned from the origin server indicates that the action has been completed
    901910         successfully. However, the server <em class="bcp14">SHOULD NOT</em> indicate success unless, at the time the response is given, it intends to delete the resource or move it to an inaccessible
    902911         location.
    903912      </p>
    904       <p id="rfc.section.7.7.p.2">A successful response <em class="bcp14">SHOULD</em> be 200 (OK) if the response includes an entity describing the status, 202 (Accepted) if the action has not yet been enacted,
     913      <p id="rfc.section.8.7.p.2">A successful response <em class="bcp14">SHOULD</em> be 200 (OK) if the response includes an entity describing the status, 202 (Accepted) if the action has not yet been enacted,
    905914         or 204 (No Content) if the action has been enacted but the response does not include an entity.
    906915      </p>
    907       <p id="rfc.section.7.7.p.3">If the request passes through a cache and the Request-URI identifies one or more currently cached entities, those entries <em class="bcp14">SHOULD</em> be treated as stale. Responses to this method are not cacheable.
     916      <p id="rfc.section.8.7.p.3">If the request passes through a cache and the Request-URI identifies one or more currently cached entities, those entries <em class="bcp14">SHOULD</em> be treated as stale. Responses to this method are not cacheable.
    908917      </p>
    909918      <div id="rfc.iref.t.1"></div>
    910919      <div id="rfc.iref.m.7"></div>
    911       <h2 id="rfc.section.7.8"><a href="#rfc.section.7.8">7.8</a>&nbsp;<a id="TRACE" href="#TRACE">TRACE</a></h2>
    912       <p id="rfc.section.7.8.p.1">The TRACE method is used to invoke a remote, application-layer loop-back of the request message. The final recipient of the
     920      <h2 id="rfc.section.8.8"><a href="#rfc.section.8.8">8.8</a>&nbsp;<a id="TRACE" href="#TRACE">TRACE</a></h2>
     921      <p id="rfc.section.8.8.p.1">The TRACE method is used to invoke a remote, application-layer loop-back of the request message. The final recipient of the
    913922         request <em class="bcp14">SHOULD</em> reflect the message received back to the client as the entity-body of a 200 (OK) response. The final recipient is either the
    914          origin server or the first proxy or gateway to receive a Max-Forwards value of zero (0) in the request (see <a href="#header.max-forwards" id="rfc.xref.header.max-forwards.2" title="Max-Forwards">Section&nbsp;9.5</a>). A TRACE request <em class="bcp14">MUST NOT</em> include an entity.
    915       </p>
    916       <p id="rfc.section.7.8.p.2">TRACE allows the client to see what is being received at the other end of the request chain and use that data for testing
    917          or diagnostic information. The value of the Via header field (<a href="p1-messaging.html#header.via" title="Via">Section 8.9</a> of <a href="#Part1" id="rfc.xref.Part1.5"><cite title="HTTP/1.1, part 1: URIs, Connections, and Message Parsing">[Part1]</cite></a>) is of particular interest, since it acts as a trace of the request chain. Use of the Max-Forwards header field allows the
     923         origin server or the first proxy or gateway to receive a Max-Forwards value of zero (0) in the request (see <a href="#header.max-forwards" id="rfc.xref.header.max-forwards.2" title="Max-Forwards">Section&nbsp;10.5</a>). A TRACE request <em class="bcp14">MUST NOT</em> include an entity.
     924      </p>
     925      <p id="rfc.section.8.8.p.2">TRACE allows the client to see what is being received at the other end of the request chain and use that data for testing
     926         or diagnostic information. The value of the Via header field (<a href="p1-messaging.html#header.via" title="Via">Section 8.9</a> of <a href="#Part1" id="rfc.xref.Part1.11"><cite title="HTTP/1.1, part 1: URIs, Connections, and Message Parsing">[Part1]</cite></a>) is of particular interest, since it acts as a trace of the request chain. Use of the Max-Forwards header field allows the
    918927         client to limit the length of the request chain, which is useful for testing a chain of proxies forwarding messages in an
    919928         infinite loop.
    920929      </p>
    921       <p id="rfc.section.7.8.p.3">If the request is valid, the response <em class="bcp14">SHOULD</em> contain the entire request message in the entity-body, with a Content-Type of "message/http". Responses to this method <em class="bcp14">MUST NOT</em> be cached.
     930      <p id="rfc.section.8.8.p.3">If the request is valid, the response <em class="bcp14">SHOULD</em> contain the entire request message in the entity-body, with a Content-Type of "message/http". Responses to this method <em class="bcp14">MUST NOT</em> be cached.
    922931      </p>
    923932      <div id="rfc.iref.c.1"></div>
    924933      <div id="rfc.iref.m.8"></div>
    925       <h2 id="rfc.section.7.9"><a href="#rfc.section.7.9">7.9</a>&nbsp;<a id="CONNECT" href="#CONNECT">CONNECT</a></h2>
    926       <p id="rfc.section.7.9.p.1">This specification reserves the method name CONNECT for use with a proxy that can dynamically switch to being a tunnel (e.g.
     934      <h2 id="rfc.section.8.9"><a href="#rfc.section.8.9">8.9</a>&nbsp;<a id="CONNECT" href="#CONNECT">CONNECT</a></h2>
     935      <p id="rfc.section.8.9.p.1">This specification reserves the method name CONNECT for use with a proxy that can dynamically switch to being a tunnel (e.g.
    927936         SSL tunneling <a href="#Luo1998" id="rfc.xref.Luo1998.1"><cite title="Tunneling TCP based protocols through Web proxy servers">[Luo1998]</cite></a>).
    928937      </p>
    929       <h1 id="rfc.section.8"><a href="#rfc.section.8">8.</a>&nbsp;<a id="status.codes" href="#status.codes">Status Code Definitions</a></h1>
    930       <p id="rfc.section.8.p.1">Each Status-Code is described below, including a description of which method(s) it can follow and any metainformation required
     938      <h1 id="rfc.section.9"><a href="#rfc.section.9">9.</a>&nbsp;<a id="status.codes" href="#status.codes">Status Code Definitions</a></h1>
     939      <p id="rfc.section.9.p.1">Each Status-Code is described below, including a description of which method(s) it can follow and any metainformation required
    931940         in the response.
    932941      </p>
    933       <h2 id="rfc.section.8.1"><a href="#rfc.section.8.1">8.1</a>&nbsp;<a id="status.1xx" href="#status.1xx">Informational 1xx</a></h2>
    934       <p id="rfc.section.8.1.p.1">This class of status code indicates a provisional response, consisting only of the Status-Line and optional headers, and is
     942      <h2 id="rfc.section.9.1"><a href="#rfc.section.9.1">9.1</a>&nbsp;<a id="status.1xx" href="#status.1xx">Informational 1xx</a></h2>
     943      <p id="rfc.section.9.1.p.1">This class of status code indicates a provisional response, consisting only of the Status-Line and optional headers, and is
    935944         terminated by an empty line. There are no required headers for this class of status code. Since HTTP/1.0 did not define any
    936945         1xx status codes, servers <em class="bcp14">MUST NOT</em> send a 1xx response to an HTTP/1.0 client except under experimental conditions.
    937946      </p>
    938       <p id="rfc.section.8.1.p.2">A client <em class="bcp14">MUST</em> be prepared to accept one or more 1xx status responses prior to a regular response, even if the client does not expect a 100
     947      <p id="rfc.section.9.1.p.2">A client <em class="bcp14">MUST</em> be prepared to accept one or more 1xx status responses prior to a regular response, even if the client does not expect a 100
    939948         (Continue) status message. Unexpected 1xx status responses <em class="bcp14">MAY</em> be ignored by a user agent.
    940949      </p>
    941       <p id="rfc.section.8.1.p.3">Proxies <em class="bcp14">MUST</em> forward 1xx responses, unless the connection between the proxy and its client has been closed, or unless the proxy itself
     950      <p id="rfc.section.9.1.p.3">Proxies <em class="bcp14">MUST</em> forward 1xx responses, unless the connection between the proxy and its client has been closed, or unless the proxy itself
    942951         requested the generation of the 1xx response. (For example, if a proxy adds a "Expect: 100-continue" field when it forwards
    943952         a request, then it need not forward the corresponding 100 (Continue) response(s).)
    … …  
    945954      <div id="rfc.iref.23"></div>
    946955      <div id="rfc.iref.s.1"></div>
    947       <h3 id="rfc.section.8.1.1"><a href="#rfc.section.8.1.1">8.1.1</a>&nbsp;<a id="status.100" href="#status.100">100 Continue</a></h3>
    948       <p id="rfc.section.8.1.1.p.1">The client <em class="bcp14">SHOULD</em> continue with its request. This interim response is used to inform the client that the initial part of the request has been
     956      <h3 id="rfc.section.9.1.1"><a href="#rfc.section.9.1.1">9.1.1</a>&nbsp;<a id="status.100" href="#status.100">100 Continue</a></h3>
     957      <p id="rfc.section.9.1.1.p.1">The client <em class="bcp14">SHOULD</em> continue with its request. This interim response is used to inform the client that the initial part of the request has been
    949958         received and has not yet been rejected by the server. The client <em class="bcp14">SHOULD</em> continue by sending the remainder of the request or, if the request has already been completed, ignore this response. The
    950          server <em class="bcp14">MUST</em> send a final response after the request has been completed. See <a href="p1-messaging.html#use.of.the.100.status" title="Use of the 100 (Continue) Status">Section 7.2.3</a> of <a href="#Part1" id="rfc.xref.Part1.6"><cite title="HTTP/1.1, part 1: URIs, Connections, and Message Parsing">[Part1]</cite></a> for detailed discussion of the use and handling of this status code.
     959         server <em class="bcp14">MUST</em> send a final response after the request has been completed. See <a href="p1-messaging.html#use.of.the.100.status" title="Use of the 100 (Continue) Status">Section 7.2.3</a> of <a href="#Part1" id="rfc.xref.Part1.12"><cite title="HTTP/1.1, part 1: URIs, Connections, and Message Parsing">[Part1]</cite></a> for detailed discussion of the use and handling of this status code.
    951960      </p>
    952961      <div id="rfc.iref.24"></div>
    953962      <div id="rfc.iref.s.2"></div>
    954       <h3 id="rfc.section.8.1.2"><a href="#rfc.section.8.1.2">8.1.2</a>&nbsp;<a id="status.101" href="#status.101">101 Switching Protocols</a></h3>
    955       <p id="rfc.section.8.1.2.p.1">The server understands and is willing to comply with the client's request, via the Upgrade message header field (<a href="p5-range.html#header.range" title="Range">Section 5.4</a> of <a href="#Part5" id="rfc.xref.Part5.5"><cite title="HTTP/1.1, part 5: Range Requests and Partial Responses">[Part5]</cite></a>), for a change in the application protocol being used on this connection. The server will switch protocols to those defined
     963      <h3 id="rfc.section.9.1.2"><a href="#rfc.section.9.1.2">9.1.2</a>&nbsp;<a id="status.101" href="#status.101">101 Switching Protocols</a></h3>
     964      <p id="rfc.section.9.1.2.p.1">The server understands and is willing to comply with the client's request, via the Upgrade message header field (<a href="p5-range.html#header.range" title="Range">Section 6.4</a> of <a href="#Part5" id="rfc.xref.Part5.5"><cite title="HTTP/1.1, part 5: Range Requests and Partial Responses">[Part5]</cite></a>), for a change in the application protocol being used on this connection. The server will switch protocols to those defined
    956965         by the response's Upgrade header field immediately after the empty line which terminates the 101 response.
    957966      </p>
    958       <p id="rfc.section.8.1.2.p.2">The protocol <em class="bcp14">SHOULD</em> be switched only when it is advantageous to do so. For example, switching to a newer version of HTTP is advantageous over
     967      <p id="rfc.section.9.1.2.p.2">The protocol <em class="bcp14">SHOULD</em> be switched only when it is advantageous to do so. For example, switching to a newer version of HTTP is advantageous over
    959968         older versions, and switching to a real-time, synchronous protocol might be advantageous when delivering resources that use
    960969         such features.
    961970      </p>
    962       <h2 id="rfc.section.8.2"><a href="#rfc.section.8.2">8.2</a>&nbsp;<a id="status.2xx" href="#status.2xx">Successful 2xx</a></h2>
    963       <p id="rfc.section.8.2.p.1">This class of status code indicates that the client's request was successfully received, understood, and accepted.</p>
     971      <h2 id="rfc.section.9.2"><a href="#rfc.section.9.2">9.2</a>&nbsp;<a id="status.2xx" href="#status.2xx">Successful 2xx</a></h2>
     972      <p id="rfc.section.9.2.p.1">This class of status code indicates that the client's request was successfully received, understood, and accepted.</p>
    964973      <div id="rfc.iref.25"></div>
    965974      <div id="rfc.iref.s.3"></div>
    966       <h3 id="rfc.section.8.2.1"><a href="#rfc.section.8.2.1">8.2.1</a>&nbsp;<a id="status.200" href="#status.200">200 OK</a></h3>
    967       <p id="rfc.section.8.2.1.p.1">The request has succeeded. The information returned with the response is dependent on the method used in the request, for
     975      <h3 id="rfc.section.9.2.1"><a href="#rfc.section.9.2.1">9.2.1</a>&nbsp;<a id="status.200" href="#status.200">200 OK</a></h3>
     976      <p id="rfc.section.9.2.1.p.1">The request has succeeded. The information returned with the response is dependent on the method used in the request, for
    968977         example:
    969978      </p>
    … …  
    980989      <div id="rfc.iref.26"></div>
    981990      <div id="rfc.iref.s.4"></div>
    982       <h3 id="rfc.section.8.2.2"><a href="#rfc.section.8.2.2">8.2.2</a>&nbsp;<a id="status.201" href="#status.201">201 Created</a></h3>
    983       <p id="rfc.section.8.2.2.p.1">The request has been fulfilled and resulted in a new resource being created. The newly created resource can be referenced
     991      <h3 id="rfc.section.9.2.2"><a href="#rfc.section.9.2.2">9.2.2</a>&nbsp;<a id="status.201" href="#status.201">201 Created</a></h3>
     992      <p id="rfc.section.9.2.2.p.1">The request has been fulfilled and resulted in a new resource being created. The newly created resource can be referenced
    984993         by the URI(s) returned in the entity of the response, with the most specific URI for the resource given by a Location header
    985994         field. The response <em class="bcp14">SHOULD</em> include an entity containing a list of resource characteristics and location(s) from which the user or user agent can choose
    … …  
    987996         server <em class="bcp14">MUST</em> create the resource before returning the 201 status code. If the action cannot be carried out immediately, the server <em class="bcp14">SHOULD</em> respond with 202 (Accepted) response instead.
    988997      </p>
    989       <p id="rfc.section.8.2.2.p.2">A 201 response <em class="bcp14">MAY</em> contain an ETag response header field indicating the current value of the entity tag for the requested variant just created,
    990          see <a href="p4-conditional.html#header.etag" title="ETag">Section 6.1</a> of <a href="#Part4" id="rfc.xref.Part4.6"><cite title="HTTP/1.1, part 4: Conditional Requests">[Part4]</cite></a>.
     998      <p id="rfc.section.9.2.2.p.2">A 201 response <em class="bcp14">MAY</em> contain an ETag response header field indicating the current value of the entity tag for the requested variant just created,
     999         see <a href="p4-conditional.html#header.etag" title="ETag">Section 7.1</a> of <a href="#Part4" id="rfc.xref.Part4.6"><cite title="HTTP/1.1, part 4: Conditional Requests">[Part4]</cite></a>.
    9911000      </p>
    9921001      <div id="rfc.iref.27"></div>
    9931002      <div id="rfc.iref.s.5"></div>
    994       <h3 id="rfc.section.8.2.3"><a href="#rfc.section.8.2.3">8.2.3</a>&nbsp;<a id="status.202" href="#status.202">202 Accepted</a></h3>
    995       <p id="rfc.section.8.2.3.p.1">The request has been accepted for processing, but the processing has not been completed. The request might or might not eventually
     1003      <h3 id="rfc.section.9.2.3"><a href="#rfc.section.9.2.3">9.2.3</a>&nbsp;<a id="status.202" href="#status.202">202 Accepted</a></h3>
     1004      <p id="rfc.section.9.2.3.p.1">The request has been accepted for processing, but the processing has not been completed. The request might or might not eventually
    9961005         be acted upon, as it might be disallowed when processing actually takes place. There is no facility for re-sending a status
    9971006         code from an asynchronous operation such as this.
    9981007      </p>
    999       <p id="rfc.section.8.2.3.p.2">The 202 response is intentionally non-committal. Its purpose is to allow a server to accept a request for some other process
     1008      <p id="rfc.section.9.2.3.p.2">The 202 response is intentionally non-committal. Its purpose is to allow a server to accept a request for some other process
    10001009         (perhaps a batch-oriented process that is only run once per day) without requiring that the user agent's connection to the
    10011010         server persist until the process is completed. The entity returned with this response <em class="bcp14">SHOULD</em> include an indication of the request's current status and either a pointer to a status monitor or some estimate of when the
    … …  
    10041013      <div id="rfc.iref.28"></div>
    10051014      <div id="rfc.iref.s.6"></div>
    1006       <h3 id="rfc.section.8.2.4"><a href="#rfc.section.8.2.4">8.2.4</a>&nbsp;<a id="status.203" href="#status.203">203 Non-Authoritative Information</a></h3>
    1007       <p id="rfc.section.8.2.4.p.1">The returned metainformation in the entity-header is not the definitive set as available from the origin server, but is gathered
     1015      <h3 id="rfc.section.9.2.4"><a href="#rfc.section.9.2.4">9.2.4</a>&nbsp;<a id="status.203" href="#status.203">203 Non-Authoritative Information</a></h3>
     1016      <p id="rfc.section.9.2.4.p.1">The returned metainformation in the entity-header is not the definitive set as available from the origin server, but is gathered
    10081017         from a local or a third-party copy. The set presented <em class="bcp14">MAY</em> be a subset or superset of the original version. For example, including local annotation information about the resource might
    10091018         result in a superset of the metainformation known by the origin server. Use of this response code is not required and is only
    … …  
    10121021      <div id="rfc.iref.29"></div>
    10131022      <div id="rfc.iref.s.7"></div>
    1014       <h3 id="rfc.section.8.2.5"><a href="#rfc.section.8.2.5">8.2.5</a>&nbsp;<a id="status.204" href="#status.204">204 No Content</a></h3>
    1015       <p id="rfc.section.8.2.5.p.1">The server has fulfilled the request but does not need to return an entity-body, and might want to return updated metainformation.
     1023      <h3 id="rfc.section.9.2.5"><a href="#rfc.section.9.2.5">9.2.5</a>&nbsp;<a id="status.204" href="#status.204">204 No Content</a></h3>
     1024      <p id="rfc.section.9.2.5.p.1">The server has fulfilled the request but does not need to return an entity-body, and might want to return updated metainformation.
    10161025         The response <em class="bcp14">MAY</em> include new or updated metainformation in the form of entity-headers, which if present <em class="bcp14">SHOULD</em> be associated with the requested variant.
    10171026      </p>
    1018       <p id="rfc.section.8.2.5.p.2">If the client is a user agent, it <em class="bcp14">SHOULD NOT</em> change its document view from that which caused the request to be sent. This response is primarily intended to allow input
     1027      <p id="rfc.section.9.2.5.p.2">If the client is a user agent, it <em class="bcp14">SHOULD NOT</em> change its document view from that which caused the request to be sent. This response is primarily intended to allow input
    10191028         for actions to take place without causing a change to the user agent's active document view, although any new or updated metainformation <em class="bcp14">SHOULD</em> be applied to the document currently in the user agent's active view.
    10201029      </p>
    1021       <p id="rfc.section.8.2.5.p.3">The 204 response <em class="bcp14">MUST NOT</em> include a message-body, and thus is always terminated by the first empty line after the header fields.
     1030      <p id="rfc.section.9.2.5.p.3">The 204 response <em class="bcp14">MUST NOT</em> include a message-body, and thus is always terminated by the first empty line after the header fields.
    10221031      </p>
    10231032      <div id="rfc.iref.30"></div>
    10241033      <div id="rfc.iref.s.8"></div>
    1025       <h3 id="rfc.section.8.2.6"><a href="#rfc.section.8.2.6">8.2.6</a>&nbsp;<a id="status.205" href="#status.205">205 Reset Content</a></h3>
    1026       <p id="rfc.section.8.2.6.p.1">The server has fulfilled the request and the user agent <em class="bcp14">SHOULD</em> reset the document view which caused the request to be sent. This response is primarily intended to allow input for actions
     1034      <h3 id="rfc.section.9.2.6"><a href="#rfc.section.9.2.6">9.2.6</a>&nbsp;<a id="status.205" href="#status.205">205 Reset Content</a></h3>
     1035      <p id="rfc.section.9.2.6.p.1">The server has fulfilled the request and the user agent <em class="bcp14">SHOULD</em> reset the document view which caused the request to be sent. This response is primarily intended to allow input for actions
    10271036         to take place via user input, followed by a clearing of the form in which the input is given so that the user can easily initiate
    10281037         another input action. The response <em class="bcp14">MUST NOT</em> include an entity.
    … …  
    10301039      <div id="rfc.iref.31"></div>
    10311040      <div id="rfc.iref.s.9"></div>
    1032       <h3 id="rfc.section.8.2.7"><a href="#rfc.section.8.2.7">8.2.7</a>&nbsp;<a id="status.206" href="#status.206">206 Partial Content</a></h3>
    1033       <p id="rfc.section.8.2.7.p.1">The server has fulfilled the partial GET request for the resource and the enclosed entity is a partial representation as defined
     1041      <h3 id="rfc.section.9.2.7"><a href="#rfc.section.9.2.7">9.2.7</a>&nbsp;<a id="status.206" href="#status.206">206 Partial Content</a></h3>
     1042      <p id="rfc.section.9.2.7.p.1">The server has fulfilled the partial GET request for the resource and the enclosed entity is a partial representation as defined
    10341043         in <a href="#Part5" id="rfc.xref.Part5.6"><cite title="HTTP/1.1, part 5: Range Requests and Partial Responses">[Part5]</cite></a>.
    10351044      </p>
    1036       <h2 id="rfc.section.8.3"><a href="#rfc.section.8.3">8.3</a>&nbsp;<a id="status.3xx" href="#status.3xx">Redirection 3xx</a></h2>
    1037       <p id="rfc.section.8.3.p.1">This class of status code indicates that further action needs to be taken by the user agent in order to fulfill the request.
     1045      <h2 id="rfc.section.9.3"><a href="#rfc.section.9.3">9.3</a>&nbsp;<a id="status.3xx" href="#status.3xx">Redirection 3xx</a></h2>
     1046      <p id="rfc.section.9.3.p.1">This class of status code indicates that further action needs to be taken by the user agent in order to fulfill the request.
    10381047         The action required <em class="bcp14">MAY</em> be carried out by the user agent without interaction with the user if and only if the method used in the second request is
    10391048         GET or HEAD. A client <em class="bcp14">SHOULD</em> detect infinite redirection loops, since such loops generate network traffic for each redirection.
    … …  
    10461055      <div id="rfc.iref.32"></div>
    10471056      <div id="rfc.iref.s.10"></div>
    1048       <h3 id="rfc.section.8.3.1"><a href="#rfc.section.8.3.1">8.3.1</a>&nbsp;<a id="status.300" href="#status.300">300 Multiple Choices</a></h3>
    1049       <p id="rfc.section.8.3.1.p.1">The requested resource corresponds to any one of a set of representations, each with its own specific location, and agent-driven
    1050          negotiation information (<a href="p3-payload.html#content.negotiation" title="Content Negotiation">Section 4</a> of <a href="#Part3" id="rfc.xref.Part3.6"><cite title="HTTP/1.1, part 3: Message Payload and Content Negotiation">[Part3]</cite></a>) is being provided so that the user (or user agent) can select a preferred representation and redirect its request to that
     1057      <h3 id="rfc.section.9.3.1"><a href="#rfc.section.9.3.1">9.3.1</a>&nbsp;<a id="status.300" href="#status.300">300 Multiple Choices</a></h3>
     1058      <p id="rfc.section.9.3.1.p.1">The requested resource corresponds to any one of a set of representations, each with its own specific location, and agent-driven
     1059         negotiation information (<a href="p3-payload.html#content.negotiation" title="Content Negotiation">Section 5</a> of <a href="#Part3" id="rfc.xref.Part3.6"><cite title="HTTP/1.1, part 3: Message Payload and Content Negotiation">[Part3]</cite></a>) is being provided so that the user (or user agent) can select a preferred representation and redirect its request to that
    10511060         location.
    10521061      </p>
    1053       <p id="rfc.section.8.3.1.p.2">Unless it was a HEAD request, the response <em class="bcp14">SHOULD</em> include an entity containing a list of resource characteristics and location(s) from which the user or user agent can choose
     1062      <p id="rfc.section.9.3.1.p.2">Unless it was a HEAD request, the response <em class="bcp14">SHOULD</em> include an entity containing a list of resource characteristics and location(s) from which the user or user agent can choose
    10541063         the one most appropriate. The entity format is specified by the media type given in the Content-Type header field. Depending
    10551064         upon the format and the capabilities of the user agent, selection of the most appropriate choice <em class="bcp14">MAY</em> be performed automatically. However, this specification does not define any standard for such automatic selection.
    10561065      </p>
    1057       <p id="rfc.section.8.3.1.p.3">If the server has a preferred choice of representation, it <em class="bcp14">SHOULD</em> include the specific URI for that representation in the Location field; user agents <em class="bcp14">MAY</em> use the Location field value for automatic redirection. This response is cacheable unless indicated otherwise.
     1066      <p id="rfc.section.9.3.1.p.3">If the server has a preferred choice of representation, it <em class="bcp14">SHOULD</em> include the specific URI for that representation in the Location field; user agents <em class="bcp14">MAY</em> use the Location field value for automatic redirection. This response is cacheable unless indicated otherwise.
    10581067      </p>
    10591068      <div id="rfc.iref.33"></div>
    10601069      <div id="rfc.iref.s.11"></div>
    1061       <h3 id="rfc.section.8.3.2"><a href="#rfc.section.8.3.2">8.3.2</a>&nbsp;<a id="status.301" href="#status.301">301 Moved Permanently</a></h3>
    1062       <p id="rfc.section.8.3.2.p.1">The requested resource has been assigned a new permanent URI and any future references to this resource <em class="bcp14">SHOULD</em> use one of the returned URIs. Clients with link editing capabilities ought to automatically re-link references to the Request-URI
     1070      <h3 id="rfc.section.9.3.2"><a href="#rfc.section.9.3.2">9.3.2</a>&nbsp;<a id="status.301" href="#status.301">301 Moved Permanently</a></h3>
     1071      <p id="rfc.section.9.3.2.p.1">The requested resource has been assigned a new permanent URI and any future references to this resource <em class="bcp14">SHOULD</em> use one of the returned URIs. Clients with link editing capabilities ought to automatically re-link references to the Request-URI
    10631072         to one or more of the new references returned by the server, where possible. This response is cacheable unless indicated otherwise.
    10641073      </p>
    1065       <p id="rfc.section.8.3.2.p.2">The new permanent URI <em class="bcp14">SHOULD</em> be given by the Location field in the response. Unless the request method was HEAD, the entity of the response <em class="bcp14">SHOULD</em> contain a short hypertext note with a hyperlink to the new URI(s).
    1066       </p>
    1067       <p id="rfc.section.8.3.2.p.3">If the 301 status code is received in response to a request method that is known to be "safe", as defined in <a href="#safe.methods" title="Safe Methods">Section&nbsp;7.1.1</a>, then the request <em class="bcp14">MAY</em> be automatically redirected by the user agent without confirmation. Otherwise, the user agent <em class="bcp14">MUST NOT</em> automatically redirect the request unless it can be confirmed by the user, since this might change the conditions under which
     1074      <p id="rfc.section.9.3.2.p.2">The new permanent URI <em class="bcp14">SHOULD</em> be given by the Location field in the response. Unless the request method was HEAD, the entity of the response <em class="bcp14">SHOULD</em> contain a short hypertext note with a hyperlink to the new URI(s).
     1075      </p>
     1076      <p id="rfc.section.9.3.2.p.3">If the 301 status code is received in response to a request method that is known to be "safe", as defined in <a href="#safe.methods" title="Safe Methods">Section&nbsp;8.1.1</a>, then the request <em class="bcp14">MAY</em> be automatically redirected by the user agent without confirmation. Otherwise, the user agent <em class="bcp14">MUST NOT</em> automatically redirect the request unless it can be confirmed by the user, since this might change the conditions under which
    10681077         the request was issued.
    10691078      </p>
    … …  
    10751084      <div id="rfc.iref.34"></div>
    10761085      <div id="rfc.iref.s.12"></div>
    1077       <h3 id="rfc.section.8.3.3"><a href="#rfc.section.8.3.3">8.3.3</a>&nbsp;<a id="status.302" href="#status.302">302 Found</a></h3>
    1078       <p id="rfc.section.8.3.3.p.1">The requested resource resides temporarily under a different URI. Since the redirection might be altered on occasion, the
     1086      <h3 id="rfc.section.9.3.3"><a href="#rfc.section.9.3.3">9.3.3</a>&nbsp;<a id="status.302" href="#status.302">302 Found</a></h3>
     1087      <p id="rfc.section.9.3.3.p.1">The requested resource resides temporarily under a different URI. Since the redirection might be altered on occasion, the
    10791088         client <em class="bcp14">SHOULD</em> continue to use the Request-URI for future requests. This response is only cacheable if indicated by a Cache-Control or Expires
    10801089         header field.
    10811090      </p>
    1082       <p id="rfc.section.8.3.3.p.2">The temporary URI <em class="bcp14">SHOULD</em> be given by the Location field in the response. Unless the request method was HEAD, the entity of the response <em class="bcp14">SHOULD</em> contain a short hypertext note with a hyperlink to the new URI(s).
    1083       </p>
    1084       <p id="rfc.section.8.3.3.p.3">If the 302 status code is received in response to a request method that is known to be "safe", as defined in <a href="#safe.methods" title="Safe Methods">Section&nbsp;7.1.1</a>, then the request <em class="bcp14">MAY</em> be automatically redirected by the user agent without confirmation. Otherwise, the user agent <em class="bcp14">MUST NOT</em> automatically redirect the request unless it can be confirmed by the user, since this might change the conditions under which
     1091      <p id="rfc.section.9.3.3.p.2">The temporary URI <em class="bcp14">SHOULD</em> be given by the Location field in the response. Unless the request method was HEAD, the entity of the response <em class="bcp14">SHOULD</em> contain a short hypertext note with a hyperlink to the new URI(s).
     1092      </p>
     1093      <p id="rfc.section.9.3.3.p.3">If the 302 status code is received in response to a request method that is known to be "safe", as defined in <a href="#safe.methods" title="Safe Methods">Section&nbsp;8.1.1</a>, then the request <em class="bcp14">MAY</em> be automatically redirected by the user agent without confirmation. Otherwise, the user agent <em class="bcp14">MUST NOT</em> automatically redirect the request unless it can be confirmed by the user, since this might change the conditions under which
    10851094         the request was issued.
    10861095      </p>
    … …  
    10941103      <div id="rfc.iref.35"></div>
    10951104      <div id="rfc.iref.s.13"></div>
    1096       <h3 id="rfc.section.8.3.4"><a href="#rfc.section.8.3.4">8.3.4</a>&nbsp;<a id="status.303" href="#status.303">303 See Other</a></h3>
    1097       <p id="rfc.section.8.3.4.p.1">The response to the request can be found under a different URI and <em class="bcp14">SHOULD</em> be retrieved using a GET method on that resource. This method exists primarily to allow the output of a POST-activated script
     1105      <h3 id="rfc.section.9.3.4"><a href="#rfc.section.9.3.4">9.3.4</a>&nbsp;<a id="status.303" href="#status.303">303 See Other</a></h3>
     1106      <p id="rfc.section.9.3.4.p.1">The response to the request can be found under a different URI and <em class="bcp14">SHOULD</em> be retrieved using a GET method on that resource. This method exists primarily to allow the output of a POST-activated script
    10981107         to redirect the user agent to a selected resource. The new URI is not a substitute reference for the originally requested
    10991108         resource. The 303 response <em class="bcp14">MUST NOT</em> be cached, but the response to the second (redirected) request might be cacheable.
    11001109      </p>
    1101       <p id="rfc.section.8.3.4.p.2">The different URI <em class="bcp14">SHOULD</em> be given by the Location field in the response. Unless the request method was HEAD, the entity of the response <em class="bcp14">SHOULD</em> contain a short hypertext note with a hyperlink to the new URI(s).
     1110      <p id="rfc.section.9.3.4.p.2">The different URI <em class="bcp14">SHOULD</em> be given by the Location field in the response. Unless the request method was HEAD, the entity of the response <em class="bcp14">SHOULD</em> contain a short hypertext note with a hyperlink to the new URI(s).
    11021111      </p>
    11031112      <dl class="empty">
    … …  
    11081117      <div id="rfc.iref.36"></div>
    11091118      <div id="rfc.iref.s.14"></div>
    1110       <h3 id="rfc.section.8.3.5"><a href="#rfc.section.8.3.5">8.3.5</a>&nbsp;<a id="status.304" href="#status.304">304 Not Modified</a></h3>
    1111       <p id="rfc.section.8.3.5.p.1">The response to the request has not been modified since the conditions indicated by the client's conditional GET request,
     1119      <h3 id="rfc.section.9.3.5"><a href="#rfc.section.9.3.5">9.3.5</a>&nbsp;<a id="status.304" href="#status.304">304 Not Modified</a></h3>
     1120      <p id="rfc.section.9.3.5.p.1">The response to the request has not been modified since the conditions indicated by the client's conditional GET request,
    11121121         as defined in <a href="#Part4" id="rfc.xref.Part4.7"><cite title="HTTP/1.1, part 4: Conditional Requests">[Part4]</cite></a>.
    11131122      </p>
    11141123      <div id="rfc.iref.37"></div>
    11151124      <div id="rfc.iref.s.15"></div>
    1116       <h3 id="rfc.section.8.3.6"><a href="#rfc.section.8.3.6">8.3.6</a>&nbsp;<a id="status.305" href="#status.305">305 Use Proxy</a></h3>
    1117       <p id="rfc.section.8.3.6.p.1">The requested resource <em class="bcp14">MUST</em> be accessed through the proxy given by the Location field. The Location field gives the URI of the proxy. The recipient is
     1125      <h3 id="rfc.section.9.3.6"><a href="#rfc.section.9.3.6">9.3.6</a>&nbsp;<a id="status.305" href="#status.305">305 Use Proxy</a></h3>
     1126      <p id="rfc.section.9.3.6.p.1">The requested resource <em class="bcp14">MUST</em> be accessed through the proxy given by the Location field. The Location field gives the URI of the proxy. The recipient is
    11181127         expected to repeat this single request via the proxy. 305 responses <em class="bcp14">MUST</em> only be generated by origin servers.
    11191128      </p>
    … …  
    11251134      <div id="rfc.iref.38"></div>
    11261135      <div id="rfc.iref.s.16"></div>
    1127       <h3 id="rfc.section.8.3.7"><a href="#rfc.section.8.3.7">8.3.7</a>&nbsp;<a id="status.306" href="#status.306">306 (Unused)</a></h3>
    1128       <p id="rfc.section.8.3.7.p.1">The 306 status code was used in a previous version of the specification, is no longer used, and the code is reserved.</p>
     1136      <h3 id="rfc.section.9.3.7"><a href="#rfc.section.9.3.7">9.3.7</a>&nbsp;<a id="status.306" href="#status.306">306 (Unused)</a></h3>
     1137      <p id="rfc.section.9.3.7.p.1">The 306 status code was used in a previous version of the specification, is no longer used, and the code is reserved.</p>
    11291138      <div id="rfc.iref.39"></div>
    11301139      <div id="rfc.iref.s.17"></div>
    1131       <h3 id="rfc.section.8.3.8"><a href="#rfc.section.8.3.8">8.3.8</a>&nbsp;<a id="status.307" href="#status.307">307 Temporary Redirect</a></h3>
    1132       <p id="rfc.section.8.3.8.p.1">The requested resource resides temporarily under a different URI. Since the redirection <em class="bcp14">MAY</em> be altered on occasion, the client <em class="bcp14">SHOULD</em> continue to use the Request-URI for future requests. This response is only cacheable if indicated by a Cache-Control or Expires
     1140      <h3 id="rfc.section.9.3.8"><a href="#rfc.section.9.3.8">9.3.8</a>&nbsp;<a id="status.307" href="#status.307">307 Temporary Redirect</a></h3>
     1141      <p id="rfc.section.9.3.8.p.1">The requested resource resides temporarily under a different URI. Since the redirection <em class="bcp14">MAY</em> be altered on occasion, the client <em class="bcp14">SHOULD</em> continue to use the Request-URI for future requests. This response is only cacheable if indicated by a Cache-Control or Expires
    11331142         header field.
    11341143      </p>
    1135       <p id="rfc.section.8.3.8.p.2">The temporary URI <em class="bcp14">SHOULD</em> be given by the Location field in the response. Unless the request method was HEAD, the entity of the response <em class="bcp14">SHOULD</em> contain a short hypertext note with a hyperlink to the new URI(s) , since many pre-HTTP/1.1 user agents do not understand
     1144      <p id="rfc.section.9.3.8.p.2">The temporary URI <em class="bcp14">SHOULD</em> be given by the Location field in the response. Unless the request method was HEAD, the entity of the response <em class="bcp14">SHOULD</em> contain a short hypertext note with a hyperlink to the new URI(s) , since many pre-HTTP/1.1 user agents do not understand
    11361145         the 307 status. Therefore, the note <em class="bcp14">SHOULD</em> contain the information necessary for a user to repeat the original request on the new URI.
    11371146      </p>
    1138       <p id="rfc.section.8.3.8.p.3">If the 307 status code is received in response to a request method that is known to be "safe", as defined in <a href="#safe.methods" title="Safe Methods">Section&nbsp;7.1.1</a>, then the request <em class="bcp14">MAY</em> be automatically redirected by the user agent without confirmation. Otherwise, the user agent <em class="bcp14">MUST NOT</em> automatically redirect the request unless it can be confirmed by the user, since this might change the conditions under which
     1147      <p id="rfc.section.9.3.8.p.3">If the 307 status code is received in response to a request method that is known to be "safe", as defined in <a href="#safe.methods" title="Safe Methods">Section&nbsp;8.1.1</a>, then the request <em class="bcp14">MAY</em> be automatically redirected by the user agent without confirmation. Otherwise, the user agent <em class="bcp14">MUST NOT</em> automatically redirect the request unless it can be confirmed by the user, since this might change the conditions under which
    11391148         the request was issued.
    11401149      </p>
    1141       <h2 id="rfc.section.8.4"><a href="#rfc.section.8.4">8.4</a>&nbsp;<a id="status.4xx" href="#status.4xx">Client Error 4xx</a></h2>
    1142       <p id="rfc.section.8.4.p.1">The 4xx class of status code is intended for cases in which the client seems to have erred. Except when responding to a HEAD
     1150      <h2 id="rfc.section.9.4"><a href="#rfc.section.9.4">9.4</a>&nbsp;<a id="status.4xx" href="#status.4xx">Client Error 4xx</a></h2>
     1151      <p id="rfc.section.9.4.p.1">The 4xx class of status code is intended for cases in which the client seems to have erred. Except when responding to a HEAD
    11431152         request, the server <em class="bcp14">SHOULD</em> include an entity containing an explanation of the error situation, and whether it is a temporary or permanent condition.
    11441153         These status codes are applicable to any request method. User agents <em class="bcp14">SHOULD</em> display any included entity to the user.
    11451154      </p>
    1146       <p id="rfc.section.8.4.p.2">If the client is sending data, a server implementation using TCP <em class="bcp14">SHOULD</em> be careful to ensure that the client acknowledges receipt of the packet(s) containing the response, before the server closes
     1155      <p id="rfc.section.9.4.p.2">If the client is sending data, a server implementation using TCP <em class="bcp14">SHOULD</em> be careful to ensure that the client acknowledges receipt of the packet(s) containing the response, before the server closes
    11471156         the input connection. If the client continues sending data to the server after the close, the server's TCP stack will send
    11481157         a reset packet to the client, which may erase the client's unacknowledged input buffers before they can be read and interpreted
    … …  
    11511160      <div id="rfc.iref.40"></div>
    11521161      <div id="rfc.iref.s.18"></div>
    1153       <h3 id="rfc.section.8.4.1"><a href="#rfc.section.8.4.1">8.4.1</a>&nbsp;<a id="status.400" href="#status.400">400 Bad Request</a></h3>
    1154       <p id="rfc.section.8.4.1.p.1">The request could not be understood by the server due to malformed syntax. The client <em class="bcp14">SHOULD NOT</em> repeat the request without modifications.
     1162      <h3 id="rfc.section.9.4.1"><a href="#rfc.section.9.4.1">9.4.1</a>&nbsp;<a id="status.400" href="#status.400">400 Bad Request</a></h3>
     1163      <p id="rfc.section.9.4.1.p.1">The request could not be understood by the server due to malformed syntax. The client <em class="bcp14">SHOULD NOT</em> repeat the request without modifications.
    11551164      </p>
    11561165      <div id="rfc.iref.41"></div>
    11571166      <div id="rfc.iref.s.19"></div>
    1158       <h3 id="rfc.section.8.4.2"><a href="#rfc.section.8.4.2">8.4.2</a>&nbsp;<a id="status.401" href="#status.401">401 Unauthorized</a></h3>
    1159       <p id="rfc.section.8.4.2.p.1">The request requires user authentication (see <a href="#Part7" id="rfc.xref.Part7.5"><cite title="HTTP/1.1, part 7: Authentication">[Part7]</cite></a>).
     1167      <h3 id="rfc.section.9.4.2"><a href="#rfc.section.9.4.2">9.4.2</a>&nbsp;<a id="status.401" href="#status.401">401 Unauthorized</a></h3>
     1168      <p id="rfc.section.9.4.2.p.1">The request requires user authentication (see <a href="#Part7" id="rfc.xref.Part7.5"><cite title="HTTP/1.1, part 7: Authentication">[Part7]</cite></a>).
    11601169      </p>
    11611170      <div id="rfc.iref.42"></div>
    11621171      <div id="rfc.iref.s.20"></div>
    1163       <h3 id="rfc.section.8.4.3"><a href="#rfc.section.8.4.3">8.4.3</a>&nbsp;<a id="status.402" href="#status.402">402 Payment Required</a></h3>
    1164       <p id="rfc.section.8.4.3.p.1">This code is reserved for future use.</p>
     1172      <h3 id="rfc.section.9.4.3"><a href="#rfc.section.9.4.3">9.4.3</a>&nbsp;<a id="status.402" href="#status.402">402 Payment Required</a></h3>
     1173      <p id="rfc.section.9.4.3.p.1">This code is reserved for future use.</p>
    11651174      <div id="rfc.iref.43"></div>
    11661175      <div id="rfc.iref.s.21"></div>
    1167       <h3 id="rfc.section.8.4.4"><a href="#rfc.section.8.4.4">8.4.4</a>&nbsp;<a id="status.403" href="#status.403">403 Forbidden</a></h3>
    1168       <p id="rfc.section.8.4.4.p.1">The server understood the request, but is refusing to fulfill it. Authorization will not help and the request <em class="bcp14">SHOULD NOT</em> be repeated. If the request method was not HEAD and the server wishes to make public why the request has not been fulfilled,
     1176      <h3 id="rfc.section.9.4.4"><a href="#rfc.section.9.4.4">9.4.4</a>&nbsp;<a id="status.403" href="#status.403">403 Forbidden</a></h3>
     1177      <p id="rfc.section.9.4.4.p.1">The server understood the request, but is refusing to fulfill it. Authorization will not help and the request <em class="bcp14">SHOULD NOT</em> be repeated. If the request method was not HEAD and the server wishes to make public why the request has not been fulfilled,
    11691178         it <em class="bcp14">SHOULD</em> describe the reason for the refusal in the entity. If the server does not wish to make this information available to the client,
    11701179         the status code 404 (Not Found) can be used instead.
    … …  
    11721181      <div id="rfc.iref.44"></div>
    11731182      <div id="rfc.iref.s.22"></div>
    1174       <h3 id="rfc.section.8.4.5"><a href="#rfc.section.8.4.5">8.4.5</a>&nbsp;<a id="status.404" href="#status.404">404 Not Found</a></h3>
    1175       <p id="rfc.section.8.4.5.p.1">The server has not found anything matching the Request-URI. No indication is given of whether the condition is temporary or
     1183      <h3 id="rfc.section.9.4.5"><a href="#rfc.section.9.4.5">9.4.5</a>&nbsp;<a id="status.404" href="#status.404">404 Not Found</a></h3>
     1184      <p id="rfc.section.9.4.5.p.1">The server has not found anything matching the Request-URI. No indication is given of whether the condition is temporary or
    11761185         permanent. The 410 (Gone) status code <em class="bcp14">SHOULD</em> be used if the server knows, through some internally configurable mechanism, that an old resource is permanently unavailable
    11771186         and has no forwarding address. This status code is commonly used when the server does not wish to reveal exactly why the request
    … …  
    11801189      <div id="rfc.iref.45"></div>
    11811190      <div id="rfc.iref.s.23"></div>
    1182       <h3 id="rfc.section.8.4.6"><a href="#rfc.section.8.4.6">8.4.6</a>&nbsp;<a id="status.405" href="#status.405">405 Method Not Allowed</a></h3>
    1183       <p id="rfc.section.8.4.6.p.1">The method specified in the Request-Line is not allowed for the resource identified by the Request-URI. The response <em class="bcp14">MUST</em> include an Allow header containing a list of valid methods for the requested resource.
     1191      <h3 id="rfc.section.9.4.6"><a href="#rfc.section.9.4.6">9.4.6</a>&nbsp;<a id="status.405" href="#status.405">405 Method Not Allowed</a></h3>
     1192      <p id="rfc.section.9.4.6.p.1">The method specified in the Request-Line is not allowed for the resource identified by the Request-URI. The response <em class="bcp14">MUST</em> include an Allow header containing a list of valid methods for the requested resource.
    11841193      </p>
    11851194      <div id="rfc.iref.46"></div>
    11861195      <div id="rfc.iref.s.24"></div>
    1187       <h3 id="rfc.section.8.4.7"><a href="#rfc.section.8.4.7">8.4.7</a>&nbsp;<a id="status.406" href="#status.406">406 Not Acceptable</a></h3>
    1188       <p id="rfc.section.8.4.7.p.1">The resource identified by the request is only capable of generating response entities which have content characteristics
     1196      <h3 id="rfc.section.9.4.7"><a href="#rfc.section.9.4.7">9.4.7</a>&nbsp;<a id="status.406" href="#status.406">406 Not Acceptable</a></h3>
     1197      <p id="rfc.section.9.4.7.p.1">The resource identified by the request is only capable of generating response entities which have content characteristics
    11891198         not acceptable according to the accept headers sent in the request.
    11901199      </p>
    1191       <p id="rfc.section.8.4.7.p.2">Unless it was a HEAD request, the response <em class="bcp14">SHOULD</em> include an entity containing a list of available entity characteristics and location(s) from which the user or user agent
     1200      <p id="rfc.section.9.4.7.p.2">Unless it was a HEAD request, the response <em class="bcp14">SHOULD</em> include an entity containing a list of available entity characteristics and location(s) from which the user or user agent
    11921201         can choose the one most appropriate. The entity format is specified by the media type given in the Content-Type header field.
    11931202         Depending upon the format and the capabilities of the user agent, selection of the most appropriate choice <em class="bcp14">MAY</em> be performed automatically. However, this specification does not define any standard for such automatic selection.
    … …  
    11991208         </dd>
    12001209      </dl>
    1201       <p id="rfc.section.8.4.7.p.3">If the response could be unacceptable, a user agent <em class="bcp14">SHOULD</em> temporarily stop receipt of more data and query the user for a decision on further actions.
     1210      <p id="rfc.section.9.4.7.p.3">If the response could be unacceptable, a user agent <em class="bcp14">SHOULD</em> temporarily stop receipt of more data and query the user for a decision on further actions.
    12021211      </p>
    12031212      <div id="rfc.iref.47"></div>
    12041213      <div id="rfc.iref.s.25"></div>
    1205       <h3 id="rfc.section.8.4.8"><a href="#rfc.section.8.4.8">8.4.8</a>&nbsp;<a id="status.407" href="#status.407">407 Proxy Authentication Required</a></h3>
    1206       <p id="rfc.section.8.4.8.p.1">This code is similar to 401 (Unauthorized), but indicates that the client must first authenticate itself with the proxy (see <a href="#Part7" id="rfc.xref.Part7.6"><cite title="HTTP/1.1, part 7: Authentication">[Part7]</cite></a>).
     1214      <h3 id="rfc.section.9.4.8"><a href="#rfc.section.9.4.8">9.4.8</a>&nbsp;<a id="status.407" href="#status.407">407 Proxy Authentication Required</a></h3>
     1215      <p id="rfc.section.9.4.8.p.1">This code is similar to 401 (Unauthorized), but indicates that the client must first authenticate itself with the proxy (see <a href="#Part7" id="rfc.xref.Part7.6"><cite title="HTTP/1.1, part 7: Authentication">[Part7]</cite></a>).
    12071216      </p>
    12081217      <div id="rfc.iref.48"></div>
    12091218      <div id="rfc.iref.s.26"></div>
    1210       <h3 id="rfc.section.8.4.9"><a href="#rfc.section.8.4.9">8.4.9</a>&nbsp;<a id="status.408" href="#status.408">408 Request Timeout</a></h3>
    1211       <p id="rfc.section.8.4.9.p.1">The client did not produce a request within the time that the server was prepared to wait. The client <em class="bcp14">MAY</em> repeat the request without modifications at any later time.
     1219      <h3 id="rfc.section.9.4.9"><a href="#rfc.section.9.4.9">9.4.9</a>&nbsp;<a id="status.408" href="#status.408">408 Request Timeout</a></h3>
     1220      <p id="rfc.section.9.4.9.p.1">The client did not produce a request within the time that the server was prepared to wait. The client <em class="bcp14">MAY</em> repeat the request without modifications at any later time.
    12121221      </p>
    12131222      <div id="rfc.iref.49"></div>
    12141223      <div id="rfc.iref.s.27"></div>
    1215       <h3 id="rfc.section.8.4.10"><a href="#rfc.section.8.4.10">8.4.10</a>&nbsp;<a id="status.409" href="#status.409">409 Conflict</a></h3>
    1216       <p id="rfc.section.8.4.10.p.1">The request could not be completed due to a conflict with the current state of the resource. This code is only allowed in
     1224      <h3 id="rfc.section.9.4.10"><a href="#rfc.section.9.4.10">9.4.10</a>&nbsp;<a id="status.409" href="#status.409">409 Conflict</a></h3>
     1225      <p id="rfc.section.9.4.10.p.1">The request could not be completed due to a conflict with the current state of the resource. This code is only allowed in
    12171226         situations where it is expected that the user might be able to resolve the conflict and resubmit the request. The response
    12181227         body <em class="bcp14">SHOULD</em> include enough information for the user to recognize the source of the conflict. Ideally, the response entity would include
    12191228         enough information for the user or user agent to fix the problem; however, that might not be possible and is not required.
    12201229      </p>
    1221       <p id="rfc.section.8.4.10.p.2">Conflicts are most likely to occur in response to a PUT request. For example, if versioning were being used and the entity
     1230      <p id="rfc.section.9.4.10.p.2">Conflicts are most likely to occur in response to a PUT request. For example, if versioning were being used and the entity
    12221231         being PUT included changes to a resource which conflict with those made by an earlier (third-party) request, the server might
    12231232         use the 409 response to indicate that it can't complete the request. In this case, the response entity would likely contain
    … …  
    12261235      <div id="rfc.iref.50"></div>
    12271236      <div id="rfc.iref.s.28"></div>
    1228       <h3 id="rfc.section.8.4.11"><a href="#rfc.section.8.4.11">8.4.11</a>&nbsp;<a id="status.410" href="#status.410">410 Gone</a></h3>
    1229       <p id="rfc.section.8.4.11.p.1">The requested resource is no longer available at the server and no forwarding address is known. This condition is expected
     1237      <h3 id="rfc.section.9.4.11"><a href="#rfc.section.9.4.11">9.4.11</a>&nbsp;<a id="status.410" href="#status.410">410 Gone</a></h3>
     1238      <p id="rfc.section.9.4.11.p.1">The requested resource is no longer available at the server and no forwarding address is known. This condition is expected
    12301239         to be considered permanent. Clients with link editing capabilities <em class="bcp14">SHOULD</em> delete references to the Request-URI after user approval. If the server does not know, or has no facility to determine, whether
    12311240         or not the condition is permanent, the status code 404 (Not Found) <em class="bcp14">SHOULD</em> be used instead. This response is cacheable unless indicated otherwise.
    12321241      </p>
    1233       <p id="rfc.section.8.4.11.p.2">The 410 response is primarily intended to assist the task of web maintenance by notifying the recipient that the resource
     1242      <p id="rfc.section.9.4.11.p.2">The 410 response is primarily intended to assist the task of web maintenance by notifying the recipient that the resource
    12341243         is intentionally unavailable and that the server owners desire that remote links to that resource be removed. Such an event
    12351244         is common for limited-time, promotional services and for resources belonging to individuals no longer working at the server's
    … …  
    12391248      <div id="rfc.iref.51"></div>
    12401249      <div id="rfc.iref.s.29"></div>
    1241       <h3 id="rfc.section.8.4.12"><a href="#rfc.section.8.4.12">8.4.12</a>&nbsp;<a id="status.411" href="#status.411">411 Length Required</a></h3>
    1242       <p id="rfc.section.8.4.12.p.1">The server refuses to accept the request without a defined Content-Length. The client <em class="bcp14">MAY</em> repeat the request if it adds a valid Content-Length header field containing the length of the message-body in the request
     1250      <h3 id="rfc.section.9.4.12"><a href="#rfc.section.9.4.12">9.4.12</a>&nbsp;<a id="status.411" href="#status.411">411 Length Required</a></h3>
     1251      <p id="rfc.section.9.4.12.p.1">The server refuses to accept the request without a defined Content-Length. The client <em class="bcp14">MAY</em> repeat the request if it adds a valid Content-Length header field containing the length of the message-body in the request
    12431252         message.
    12441253      </p>
    12451254      <div id="rfc.iref.52"></div>
    12461255      <div id="rfc.iref.s.30"></div>
    1247       <h3 id="rfc.section.8.4.13"><a href="#rfc.section.8.4.13">8.4.13</a>&nbsp;<a id="status.412" href="#status.412">412 Precondition Failed</a></h3>
    1248       <p id="rfc.section.8.4.13.p.1">The precondition given in one or more of the request-header fields evaluated to false when it was tested on the server, as
     1256      <h3 id="rfc.section.9.4.13"><a href="#rfc.section.9.4.13">9.4.13</a>&nbsp;<a id="status.412" href="#status.412">412 Precondition Failed</a></h3>
     1257      <p id="rfc.section.9.4.13.p.1">The precondition given in one or more of the request-header fields evaluated to false when it was tested on the server, as
    12491258         defined in <a href="#Part4" id="rfc.xref.Part4.8"><cite title="HTTP/1.1, part 4: Conditional Requests">[Part4]</cite></a>.
    12501259      </p>
    12511260      <div id="rfc.iref.53"></div>
    12521261      <div id="rfc.iref.s.31"></div>
    1253       <h3 id="rfc.section.8.4.14"><a href="#rfc.section.8.4.14">8.4.14</a>&nbsp;<a id="status.413" href="#status.413">413 Request Entity Too Large</a></h3>
    1254       <p id="rfc.section.8.4.14.p.1">The server is refusing to process a request because the request entity is larger than the server is willing or able to process.
     1262      <h3 id="rfc.section.9.4.14"><a href="#rfc.section.9.4.14">9.4.14</a>&nbsp;<a id="status.413" href="#status.413">413 Request Entity Too Large</a></h3>
     1263      <p id="rfc.section.9.4.14.p.1">The server is refusing to process a request because the request entity is larger than the server is willing or able to process.
    12551264         The server <em class="bcp14">MAY</em> close the connection to prevent the client from continuing the request.
    12561265      </p>
    1257       <p id="rfc.section.8.4.14.p.2">If the condition is temporary, the server <em class="bcp14">SHOULD</em> include a Retry-After header field to indicate that it is temporary and after what time the client <em class="bcp14">MAY</em> try again.
     1266      <p id="rfc.section.9.4.14.p.2">If the condition is temporary, the server <em class="bcp14">SHOULD</em> include a Retry-After header field to indicate that it is temporary and after what time the client <em class="bcp14">MAY</em> try again.
    12581267      </p>
    12591268      <div id="rfc.iref.54"></div>
    12601269      <div id="rfc.iref.s.32"></div>
    1261       <h3 id="rfc.section.8.4.15"><a href="#rfc.section.8.4.15">8.4.15</a>&nbsp;<a id="status.414" href="#status.414">414 Request-URI Too Long</a></h3>
    1262       <p id="rfc.section.8.4.15.p.1">The server is refusing to service the request because the Request-URI is longer than the server is willing to interpret. This
     1270      <h3 id="rfc.section.9.4.15"><a href="#rfc.section.9.4.15">9.4.15</a>&nbsp;<a id="status.414" href="#status.414">414 Request-URI Too Long</a></h3>
     1271      <p id="rfc.section.9.4.15.p.1">The server is refusing to service the request because the Request-URI is longer than the server is willing to interpret. This
    12631272         rare condition is only likely to occur when a client has improperly converted a POST request to a GET request with long query
    12641273         information, when the client has descended into a URI "black hole" of redirection (e.g., a redirected URI prefix that points
    … …  
    12681277      <div id="rfc.iref.55"></div>
    12691278      <div id="rfc.iref.s.33"></div>
    1270       <h3 id="rfc.section.8.4.16"><a href="#rfc.section.8.4.16">8.4.16</a>&nbsp;<a id="status.415" href="#status.415">415 Unsupported Media Type</a></h3>
    1271       <p id="rfc.section.8.4.16.p.1">The server is refusing to service the request because the entity of the request is in a format not supported by the requested
     1279      <h3 id="rfc.section.9.4.16"><a href="#rfc.section.9.4.16">9.4.16</a>&nbsp;<a id="status.415" href="#status.415">415 Unsupported Media Type</a></h3>
     1280      <p id="rfc.section.9.4.16.p.1">The server is refusing to service the request because the entity of the request is in a format not supported by the requested
    12721281         resource for the requested method.
    12731282      </p>
    12741283      <div id="rfc.iref.56"></div>
    12751284      <div id="rfc.iref.s.34"></div>
    1276       <h3 id="rfc.section.8.4.17"><a href="#rfc.section.8.4.17">8.4.17</a>&nbsp;<a id="status.416" href="#status.416">416 Requested Range Not Satisfiable</a></h3>
    1277       <p id="rfc.section.8.4.17.p.1">The request included a Range request-header field (<a href="p5-range.html#header.range" title="Range">Section 5.4</a> of <a href="#Part5" id="rfc.xref.Part5.7"><cite title="HTTP/1.1, part 5: Range Requests and Partial Responses">[Part5]</cite></a>) and none of the range-specifier values in this field overlap the current extent of the selected resource.
     1285      <h3 id="rfc.section.9.4.17"><a href="#rfc.section.9.4.17">9.4.17</a>&nbsp;<a id="status.416" href="#status.416">416 Requested Range Not Satisfiable</a></h3>
     1286      <p id="rfc.section.9.4.17.p.1">The request included a Range request-header field (<a href="p5-range.html#header.range" title="Range">Section 6.4</a> of <a href="#Part5" id="rfc.xref.Part5.7"><cite title="HTTP/1.1, part 5: Range Requests and Partial Responses">[Part5]</cite></a>) and none of the range-specifier values in this field overlap the current extent of the selected resource.
    12781287      </p>
    12791288      <div id="rfc.iref.57"></div>
    12801289      <div id="rfc.iref.s.35"></div>
    1281       <h3 id="rfc.section.8.4.18"><a href="#rfc.section.8.4.18">8.4.18</a>&nbsp;<a id="status.417" href="#status.417">417 Expectation Failed</a></h3>
    1282       <p id="rfc.section.8.4.18.p.1">The expectation given in an Expect request-header field (see <a href="#header.expect" id="rfc.xref.header.expect.2" title="Expect">Section&nbsp;9.2</a>) could not be met by this server, or, if the server is a proxy, the server has unambiguous evidence that the request could
     1290      <h3 id="rfc.section.9.4.18"><a href="#rfc.section.9.4.18">9.4.18</a>&nbsp;<a id="status.417" href="#status.417">417 Expectation Failed</a></h3>
     1291      <p id="rfc.section.9.4.18.p.1">The expectation given in an Expect request-header field (see <a href="#header.expect" id="rfc.xref.header.expect.2" title="Expect">Section&nbsp;10.2</a>) could not be met by this server, or, if the server is a proxy, the server has unambiguous evidence that the request could
    12831292         not be met by the next-hop server.
    12841293      </p>
    1285       <h2 id="rfc.section.8.5"><a href="#rfc.section.8.5">8.5</a>&nbsp;<a id="status.5xx" href="#status.5xx">Server Error 5xx</a></h2>
    1286       <p id="rfc.section.8.5.p.1">Response status codes beginning with the digit "5" indicate cases in which the server is aware that it has erred or is incapable
     1294      <h2 id="rfc.section.9.5"><a href="#rfc.section.9.5">9.5</a>&nbsp;<a id="status.5xx" href="#status.5xx">Server Error 5xx</a></h2>
     1295      <p id="rfc.section.9.5.p.1">Response status codes beginning with the digit "5" indicate cases in which the server is aware that it has erred or is incapable
    12871296         of performing the request. Except when responding to a HEAD request, the server <em class="bcp14">SHOULD</em> include an entity containing an explanation of the error situation, and whether it is a temporary or permanent condition.
    12881297         User agents <em class="bcp14">SHOULD</em> display any included entity to the user. These response codes are applicable to any request method.
    … …  
    12901299      <div id="rfc.iref.58"></div>
    12911300      <div id="rfc.iref.s.36"></div>
    1292       <h3 id="rfc.section.8.5.1"><a href="#rfc.section.8.5.1">8.5.1</a>&nbsp;<a id="status.500" href="#status.500">500 Internal Server Error</a></h3>
    1293       <p id="rfc.section.8.5.1.p.1">The server encountered an unexpected condition which prevented it from fulfilling the request.</p>
     1301      <h3 id="rfc.section.9.5.1"><a href="#rfc.section.9.5.1">9.5.1</a>&nbsp;<a id="status.500" href="#status.500">500 Internal Server Error</a></h3>
     1302      <p id="rfc.section.9.5.1.p.1">The server encountered an unexpected condition which prevented it from fulfilling the request.</p>
    12941303      <div id="rfc.iref.59"></div>
    12951304      <div id="rfc.iref.s.37"></div>
    1296       <h3 id="rfc.section.8.5.2"><a href="#rfc.section.8.5.2">8.5.2</a>&nbsp;<a id="status.501" href="#status.501">501 Not Implemented</a></h3>
    1297       <p id="rfc.section.8.5.2.p.1">The server does not support the functionality required to fulfill the request. This is the appropriate response when the server
     1305      <h3 id="rfc.section.9.5.2"><a href="#rfc.section.9.5.2">9.5.2</a>&nbsp;<a id="status.501" href="#status.501">501 Not Implemented</a></h3>
     1306      <p id="rfc.section.9.5.2.p.1">The server does not support the functionality required to fulfill the request. This is the appropriate response when the server
    12981307         does not recognize the request method and is not capable of supporting it for any resource.
    12991308      </p>
    13001309      <div id="rfc.iref.60"></div>
    13011310      <div id="rfc.iref.s.38"></div>
    1302       <h3 id="rfc.section.8.5.3"><a href="#rfc.section.8.5.3">8.5.3</a>&nbsp;<a id="status.502" href="#status.502">502 Bad Gateway</a></h3>
    1303       <p id="rfc.section.8.5.3.p.1">The server, while acting as a gateway or proxy, received an invalid response from the upstream server it accessed in attempting
     1311      <h3 id="rfc.section.9.5.3"><a href="#rfc.section.9.5.3">9.5.3</a>&nbsp;<a id="status.502" href="#status.502">502 Bad Gateway</a></h3>
     1312      <p id="rfc.section.9.5.3.p.1">The server, while acting as a gateway or proxy, received an invalid response from the upstream server it accessed in attempting
    13041313         to fulfill the request.
    13051314      </p>
    13061315      <div id="rfc.iref.61"></div>
    13071316      <div id="rfc.iref.s.39"></div>
    1308       <h3 id="rfc.section.8.5.4"><a href="#rfc.section.8.5.4">8.5.4</a>&nbsp;<a id="status.503" href="#status.503">503 Service Unavailable</a></h3>
    1309       <p id="rfc.section.8.5.4.p.1">The server is currently unable to handle the request due to a temporary overloading or maintenance of the server. The implication
     1317      <h3 id="rfc.section.9.5.4"><a href="#rfc.section.9.5.4">9.5.4</a>&nbsp;<a id="status.503" href="#status.503">503 Service Unavailable</a></h3>
     1318      <p id="rfc.section.9.5.4.p.1">The server is currently unable to handle the request due to a temporary overloading or maintenance of the server. The implication
    13101319         is that this is a temporary condition which will be alleviated after some delay. If known, the length of the delay <em class="bcp14">MAY</em> be indicated in a Retry-After header. If no Retry-After is given, the client <em class="bcp14">SHOULD</em> handle the response as it would for a 500 response.
    13111320      </p>
    … …  
    13171326      <div id="rfc.iref.62"></div>
    13181327      <div id="rfc.iref.s.40"></div>
    1319       <h3 id="rfc.section.8.5.5"><a href="#rfc.section.8.5.5">8.5.5</a>&nbsp;<a id="status.504" href="#status.504">504 Gateway Timeout</a></h3>
    1320       <p id="rfc.section.8.5.5.p.1">The server, while acting as a gateway or proxy, did not receive a timely response from the upstream server specified by the
     1328      <h3 id="rfc.section.9.5.5"><a href="#rfc.section.9.5.5">9.5.5</a>&nbsp;<a id="status.504" href="#status.504">504 Gateway Timeout</a></h3>
     1329      <p id="rfc.section.9.5.5.p.1">The server, while acting as a gateway or proxy, did not receive a timely response from the upstream server specified by the
    13211330         URI (e.g. HTTP, FTP, LDAP) or some other auxiliary server (e.g. DNS) it needed to access in attempting to complete the request.
    13221331      </p>
    … …  
    13271336      <div id="rfc.iref.63"></div>
    13281337      <div id="rfc.iref.s.41"></div>
    1329       <h3 id="rfc.section.8.5.6"><a href="#rfc.section.8.5.6">8.5.6</a>&nbsp;<a id="status.505" href="#status.505">505 HTTP Version Not Supported</a></h3>
    1330       <p id="rfc.section.8.5.6.p.1">The server does not support, or refuses to support, the protocol version that was used in the request message. The server
     1338      <h3 id="rfc.section.9.5.6"><a href="#rfc.section.9.5.6">9.5.6</a>&nbsp;<a id="status.505" href="#status.505">505 HTTP Version Not Supported</a></h3>
     1339      <p id="rfc.section.9.5.6.p.1">The server does not support, or refuses to support, the protocol version that was used in the request message. The server
    13311340         is indicating that it is unable or unwilling to complete the request using the same major version as the client, as described
    1332          in <a href="p1-messaging.html#http.version" title="HTTP Version">Section 3.1</a> of <a href="#Part1" id="rfc.xref.Part1.7"><cite title="HTTP/1.1, part 1: URIs, Connections, and Message Parsing">[Part1]</cite></a>, other than with this error message. The response <em class="bcp14">SHOULD</em> contain an entity describing why that version is not supported and what other protocols are supported by that server.
    1333       </p>
    1334       <h1 id="rfc.section.9"><a href="#rfc.section.9">9.</a>&nbsp;<a id="header.fields" href="#header.fields">Header Field Definitions</a></h1>
    1335       <p id="rfc.section.9.p.1">This section defines the syntax and semantics of HTTP/1.1 header fields related to request and response semantics.</p>
    1336       <p id="rfc.section.9.p.2">For entity-header fields, both sender and recipient refer to either the client or the server, depending on who sends and who
     1341         in <a href="p1-messaging.html#http.version" title="HTTP Version">Section 3.1</a> of <a href="#Part1" id="rfc.xref.Part1.13"><cite title="HTTP/1.1, part 1: URIs, Connections, and Message Parsing">[Part1]</cite></a>, other than with this error message. The response <em class="bcp14">SHOULD</em> contain an entity describing why that version is not supported and what other protocols are supported by that server.
     1342      </p>
     1343      <h1 id="rfc.section.10"><a href="#rfc.section.10">10.</a>&nbsp;<a id="header.fields" href="#header.fields">Header Field Definitions</a></h1>
     1344      <p id="rfc.section.10.p.1">This section defines the syntax and semantics of HTTP/1.1 header fields related to request and response semantics.</p>
     1345      <p id="rfc.section.10.p.2">For entity-header fields, both sender and recipient refer to either the client or the server, depending on who sends and who
    13371346         receives the entity.
    13381347      </p>
    13391348      <div id="rfc.iref.a.1"></div>
    13401349      <div id="rfc.iref.h.2"></div>
    1341       <h2 id="rfc.section.9.1"><a href="#rfc.section.9.1">9.1</a>&nbsp;<a id="header.allow" href="#header.allow">Allow</a></h2>
    1342       <p id="rfc.section.9.1.p.1">The Allow entity-header field lists the set of methods supported by the resource identified by the Request-URI. The purpose
     1350      <h2 id="rfc.section.10.1"><a href="#rfc.section.10.1">10.1</a>&nbsp;<a id="header.allow" href="#header.allow">Allow</a></h2>
     1351      <p id="rfc.section.10.1.p.1">The Allow entity-header field lists the set of methods supported by the resource identified by the Request-URI. The purpose
    13431352         of this field is strictly to inform the recipient of valid methods associated with the resource. An Allow header field <em class="bcp14">MUST</em> be present in a 405 (Method Not Allowed) response.
    13441353      </p>
    1345       <div id="rfc.figure.u.5"></div><pre class="inline"><span id="rfc.iref.g.9"></span>  Allow   = "Allow" ":" #Method
    1346 </pre><p id="rfc.section.9.1.p.3">Example of use:</p>
    1347       <div id="rfc.figure.u.6"></div><pre class="text">       Allow: GET, HEAD, PUT
    1348 </pre><p id="rfc.section.9.1.p.5">This field cannot prevent a client from trying other methods. However, the indications given by the Allow header field value <em class="bcp14">SHOULD</em> be followed. The actual set of allowed methods is defined by the origin server at the time of each request.
    1349       </p>
    1350       <p id="rfc.section.9.1.p.6">The Allow header field <em class="bcp14">MAY</em> be provided with a PUT request to recommend the methods to be supported by the new or modified resource. The server is not
     1354      <div id="rfc.figure.u.7"></div><pre class="inline"><span id="rfc.iref.g.9"></span>  Allow   = "Allow" ":" #Method
     1355</pre><p id="rfc.section.10.1.p.3">Example of use:</p>
     1356      <div id="rfc.figure.u.8"></div><pre class="text">       Allow: GET, HEAD, PUT
     1357</pre><p id="rfc.section.10.1.p.5">This field cannot prevent a client from trying other methods. However, the indications given by the Allow header field value <em class="bcp14">SHOULD</em> be followed. The actual set of allowed methods is defined by the origin server at the time of each request.
     1358      </p>
     1359      <p id="rfc.section.10.1.p.6">The Allow header field <em class="bcp14">MAY</em> be provided with a PUT request to recommend the methods to be supported by the new or modified resource. The server is not
    13511360         required to support these methods and <em class="bcp14">SHOULD</em> include an Allow header in the response giving the actual supported methods.
    13521361      </p>
    1353       <p id="rfc.section.9.1.p.7">A proxy <em class="bcp14">MUST NOT</em> modify the Allow header field even if it does not understand all the methods specified, since the user agent might have other
     1362      <p id="rfc.section.10.1.p.7">A proxy <em class="bcp14">MUST NOT</em> modify the Allow header field even if it does not understand all the methods specified, since the user agent might have other
    13541363         means of communicating with the origin server.
    13551364      </p>
    13561365      <div id="rfc.iref.e.1"></div>
    13571366      <div id="rfc.iref.h.3"></div>
    1358       <h2 id="rfc.section.9.2"><a href="#rfc.section.9.2">9.2</a>&nbsp;<a id="header.expect" href="#header.expect">Expect</a></h2>
    1359       <p id="rfc.section.9.2.p.1">The Expect request-header field is used to indicate that particular server behaviors are required by the client.</p>
    1360       <div id="rfc.figure.u.7"></div><pre class="inline"><span id="rfc.iref.g.10"></span><span id="rfc.iref.g.11"></span><span id="rfc.iref.g.12"></span><span id="rfc.iref.g.13"></span>  Expect       =  "Expect" ":" 1#expectation
     1367      <h2 id="rfc.section.10.2"><a href="#rfc.section.10.2">10.2</a>&nbsp;<a id="header.expect" href="#header.expect">Expect</a></h2>
     1368      <p id="rfc.section.10.2.p.1">The Expect request-header field is used to indicate that particular server behaviors are required by the client.</p>
     1369      <div id="rfc.figure.u.9"></div><pre class="inline"><span id="rfc.iref.g.10"></span><span id="rfc.iref.g.11"></span><span id="rfc.iref.g.12"></span><span id="rfc.iref.g.13"></span>  Expect       =  "Expect" ":" 1#expectation
    13611370 
    13621371  expectation  =  "100-continue" | expectation-extension
    … …  
    13641373                           *expect-params ]
    13651374  expect-params =  ";" token [ "=" ( token | quoted-string ) ]
    1366 </pre><p id="rfc.section.9.2.p.3">A server that does not understand or is unable to comply with any of the expectation values in the Expect field of a request <em class="bcp14">MUST</em> respond with appropriate error status. The server <em class="bcp14">MUST</em> respond with a 417 (Expectation Failed) status if any of the expectations cannot be met or, if there are other problems with
     1375</pre><p id="rfc.section.10.2.p.3">A server that does not understand or is unable to comply with any of the expectation values in the Expect field of a request <em class="bcp14">MUST</em> respond with appropriate error status. The server <em class="bcp14">MUST</em> respond with a 417 (Expectation Failed) status if any of the expectations cannot be met or, if there are other problems with
    13671376         the request, some other 4xx status.
    13681377      </p>
    1369       <p id="rfc.section.9.2.p.4">This header field is defined with extensible syntax to allow for future extensions. If a server receives a request containing
     1378      <p id="rfc.section.10.2.p.4">This header field is defined with extensible syntax to allow for future extensions. If a server receives a request containing
    13701379         an Expect field that includes an expectation-extension that it does not support, it <em class="bcp14">MUST</em> respond with a 417 (Expectation Failed) status.
    13711380      </p>
    1372       <p id="rfc.section.9.2.p.5">Comparison of expectation values is case-insensitive for unquoted tokens (including the 100-continue token), and is case-sensitive
     1381      <p id="rfc.section.10.2.p.5">Comparison of expectation values is case-insensitive for unquoted tokens (including the 100-continue token), and is case-sensitive
    13731382         for quoted-string expectation-extensions.
    13741383      </p>
    1375       <p id="rfc.section.9.2.p.6">The Expect mechanism is hop-by-hop: that is, an HTTP/1.1 proxy <em class="bcp14">MUST</em> return a 417 (Expectation Failed) status if it receives a request with an expectation that it cannot meet. However, the Expect
     1384      <p id="rfc.section.10.2.p.6">The Expect mechanism is hop-by-hop: that is, an HTTP/1.1 proxy <em class="bcp14">MUST</em> return a 417 (Expectation Failed) status if it receives a request with an expectation that it cannot meet. However, the Expect
    13761385         request-header itself is end-to-end; it <em class="bcp14">MUST</em> be forwarded if the request is forwarded.
    13771386      </p>
    1378       <p id="rfc.section.9.2.p.7">Many older HTTP/1.0 and HTTP/1.1 applications do not understand the Expect header.</p>
    1379       <p id="rfc.section.9.2.p.8">See <a href="p1-messaging.html#use.of.the.100.status" title="Use of the 100 (Continue) Status">Section 7.2.3</a> of <a href="#Part1" id="rfc.xref.Part1.8"><cite title="HTTP/1.1, part 1: URIs, Connections, and Message Parsing">[Part1]</cite></a> for the use of the 100 (Continue) status.
     1387      <p id="rfc.section.10.2.p.7">Many older HTTP/1.0 and HTTP/1.1 applications do not understand the Expect header.</p>
     1388      <p id="rfc.section.10.2.p.8">See <a href="p1-messaging.html#use.of.the.100.status" title="Use of the 100 (Continue) Status">Section 7.2.3</a> of <a href="#Part1" id="rfc.xref.Part1.14"><cite title="HTTP/1.1, part 1: URIs, Connections, and Message Parsing">[Part1]</cite></a> for the use of the 100 (Continue) status.
    13801389      </p>
    13811390      <div id="rfc.iref.f.1"></div>
    13821391      <div id="rfc.iref.h.4"></div>
    1383       <h2 id="rfc.section.9.3"><a href="#rfc.section.9.3">9.3</a>&nbsp;<a id="header.from" href="#header.from">From</a></h2>
    1384       <p id="rfc.section.9.3.p.1">The From request-header field, if given, <em class="bcp14">SHOULD</em> contain an Internet e-mail address for the human user who controls the requesting user agent. The address <em class="bcp14">SHOULD</em> be machine-usable, as defined by "mailbox" in <a href="http://tools.ietf.org/html/rfc2822#section-3.4">Section 3.4</a> of <a href="#RFC2822" id="rfc.xref.RFC2822.1"><cite title="Internet Message Format">[RFC2822]</cite></a>:
    1385       </p>
    1386       <div id="rfc.figure.u.8"></div><pre class="inline"><span id="rfc.iref.g.14"></span>  From   = "From" ":" mailbox
    1387 </pre><p id="rfc.section.9.3.p.3">An example is:</p>
    1388       <div id="rfc.figure.u.9"></div><pre class="text">    From: webmaster@example.org
    1389 </pre><p id="rfc.section.9.3.p.5">This header field <em class="bcp14">MAY</em> be used for logging purposes and as a means for identifying the source of invalid or unwanted requests. It <em class="bcp14">SHOULD NOT</em> be used as an insecure form of access protection. The interpretation of this field is that the request is being performed
     1392      <h2 id="rfc.section.10.3"><a href="#rfc.section.10.3">10.3</a>&nbsp;<a id="header.from" href="#header.from">From</a></h2>
     1393      <p id="rfc.section.10.3.p.1">The From request-header field, if given, <em class="bcp14">SHOULD</em> contain an Internet e-mail address for the human user who controls the requesting user agent. The address <em class="bcp14">SHOULD</em> be machine-usable, as defined by "mailbox" in <a href="http://tools.ietf.org/html/rfc2822#section-3.4">Section 3.4</a> of <a href="#RFC2822" id="rfc.xref.RFC2822.1"><cite title="Internet Message Format">[RFC2822]</cite></a>:
     1394      </p>
     1395      <div id="rfc.figure.u.10"></div><pre class="inline"><span id="rfc.iref.g.14"></span>  From   = "From" ":" mailbox
     1396</pre><p id="rfc.section.10.3.p.3">An example is:</p>
     1397      <div id="rfc.figure.u.11"></div><pre class="text">    From: webmaster@example.org
     1398</pre><p id="rfc.section.10.3.p.5">This header field <em class="bcp14">MAY</em> be used for logging purposes and as a means for identifying the source of invalid or unwanted requests. It <em class="bcp14">SHOULD NOT</em> be used as an insecure form of access protection. The interpretation of this field is that the request is being performed
    13901399         on behalf of the person given, who accepts responsibility for the method performed. In particular, robot agents <em class="bcp14">SHOULD</em> include this header so that the person responsible for running the robot can be contacted if problems occur on the receiving
    13911400         end.
    13921401      </p>
    1393       <p id="rfc.section.9.3.p.6">The Internet e-mail address in this field <em class="bcp14">MAY</em> be separate from the Internet host which issued the request. For example, when a request is passed through a proxy the original
     1402      <p id="rfc.section.10.3.p.6">The Internet e-mail address in this field <em class="bcp14">MAY</em> be separate from the Internet host which issued the request. For example, when a request is passed through a proxy the original
    13941403         issuer's address <em class="bcp14">SHOULD</em> be used.
    13951404      </p>
    1396       <p id="rfc.section.9.3.p.7">The client <em class="bcp14">SHOULD NOT</em> send the From header field without the user's approval, as it might conflict with the user's privacy interests or their site's
     1405      <p id="rfc.section.10.3.p.7">The client <em class="bcp14">SHOULD NOT</em> send the From header field without the user's approval, as it might conflict with the user's privacy interests or their site's
    13971406         security policy. It is strongly recommended that the user be able to disable, enable, and modify the value of this field at
    13981407         any time prior to a request.
    … …  
    14001409      <div id="rfc.iref.l.1"></div>
    14011410      <div id="rfc.iref.h.5"></div>
    1402       <h2 id="rfc.section.9.4"><a href="#rfc.section.9.4">9.4</a>&nbsp;<a id="header.location" href="#header.location">Location</a></h2>
    1403       <p id="rfc.section.9.4.p.1">The Location response-header field is used to redirect the recipient to a location other than the Request-URI for completion
     1411      <h2 id="rfc.section.10.4"><a href="#rfc.section.10.4">10.4</a>&nbsp;<a id="header.location" href="#header.location">Location</a></h2>
     1412      <p id="rfc.section.10.4.p.1">The Location response-header field is used to redirect the recipient to a location other than the Request-URI for completion
    14041413         of the request or identification of a new resource. For 201 (Created) responses, the Location is that of the new resource
    14051414         which was created by the request. For 3xx responses, the location <em class="bcp14">SHOULD</em> indicate the server's preferred URI for automatic redirection to the resource. The field value consists of a single absolute
    14061415         URI.
    14071416      </p>
    1408       <div id="rfc.figure.u.10"></div><pre class="inline"><span id="rfc.iref.g.15"></span>  Location       = "Location" ":" absoluteURI [ "#" fragment ]
    1409 </pre><p id="rfc.section.9.4.p.3">An example is:</p>
    1410       <div id="rfc.figure.u.11"></div><pre class="text">    Location: http://www.example.org/pub/WWW/People.html
    1411 </pre><p id="rfc.section.9.4.p.5"> </p>
     1417      <div id="rfc.figure.u.12"></div><pre class="inline"><span id="rfc.iref.g.15"></span>  Location       = "Location" ":" absoluteURI [ "#" fragment ]
     1418</pre><p id="rfc.section.10.4.p.3">An example is:</p>
     1419      <div id="rfc.figure.u.13"></div><pre class="text">    Location: http://www.example.org/pub/WWW/People.html
     1420</pre><p id="rfc.section.10.4.p.5"> </p>
    14121421      <dl class="empty">
    1413          <dd> <b>Note:</b> The Content-Location header field (<a href="p3-payload.html#header.content-location" title="Content-Location">Section 5.7</a> of <a href="#Part3" id="rfc.xref.Part3.7"><cite title="HTTP/1.1, part 3: Message Payload and Content Negotiation">[Part3]</cite></a>) differs from Location in that the Content-Location identifies the original location of the entity enclosed in the request.
     1422         <dd> <b>Note:</b> The Content-Location header field (<a href="p3-payload.html#header.content-location" title="Content-Location">Section 6.7</a> of <a href="#Part3" id="rfc.xref.Part3.7"><cite title="HTTP/1.1, part 3: Message Payload and Content Negotiation">[Part3]</cite></a>) differs from Location in that the Content-Location identifies the original location of the entity enclosed in the request.
    14141423            It is therefore possible for a response to contain header fields for both Location and Content-Location.
    14151424         </dd>
    14161425      </dl>
    1417       <p id="rfc.section.9.4.p.6">There are circumstances in which a fragment identifier in a Location URL would not be appropriate: </p>
     1426      <p id="rfc.section.10.4.p.6">There are circumstances in which a fragment identifier in a Location URL would not be appropriate: </p>
    14181427      <ul>
    14191428         <li>With a 201 Created response, because in this usage the Location header specifies the URL for the entire created resource.</li>
    … …  
    14251434      <div id="rfc.iref.m.9"></div>
    14261435      <div id="rfc.iref.h.6"></div>
    1427       <h2 id="rfc.section.9.5"><a href="#rfc.section.9.5">9.5</a>&nbsp;<a id="header.max-forwards" href="#header.max-forwards">Max-Forwards</a></h2>
    1428       <p id="rfc.section.9.5.p.1">The Max-Forwards request-header field provides a mechanism with the TRACE (<a href="#TRACE" id="rfc.xref.TRACE.2" title="TRACE">Section&nbsp;7.8</a>) and OPTIONS (<a href="#OPTIONS" id="rfc.xref.OPTIONS.2" title="OPTIONS">Section&nbsp;7.2</a>) methods to limit the number of proxies or gateways that can forward the request to the next inbound server. This can be
     1436      <h2 id="rfc.section.10.5"><a href="#rfc.section.10.5">10.5</a>&nbsp;<a id="header.max-forwards" href="#header.max-forwards">Max-Forwards</a></h2>
     1437      <p id="rfc.section.10.5.p.1">The Max-Forwards request-header field provides a mechanism with the TRACE (<a href="#TRACE" id="rfc.xref.TRACE.2" title="TRACE">Section&nbsp;8.8</a>) and OPTIONS (<a href="#OPTIONS" id="rfc.xref.OPTIONS.2" title="OPTIONS">Section&nbsp;8.2</a>) methods to limit the number of proxies or gateways that can forward the request to the next inbound server. This can be
    14291438         useful when the client is attempting to trace a request chain which appears to be failing or looping in mid-chain.
    14301439      </p>
    1431       <div id="rfc.figure.u.12"></div><pre class="inline"><span id="rfc.iref.g.16"></span>  Max-Forwards   = "Max-Forwards" ":" 1*DIGIT
    1432 </pre><p id="rfc.section.9.5.p.3">The Max-Forwards value is a decimal integer indicating the remaining number of times this request message may be forwarded.</p>
    1433       <p id="rfc.section.9.5.p.4">Each proxy or gateway recipient of a TRACE or OPTIONS request containing a Max-Forwards header field <em class="bcp14">MUST</em> check and update its value prior to forwarding the request. If the received value is zero (0), the recipient <em class="bcp14">MUST NOT</em> forward the request; instead, it <em class="bcp14">MUST</em> respond as the final recipient. If the received Max-Forwards value is greater than zero, then the forwarded message <em class="bcp14">MUST</em> contain an updated Max-Forwards field with a value decremented by one (1).
    1434       </p>
    1435       <p id="rfc.section.9.5.p.5">The Max-Forwards header field <em class="bcp14">MAY</em> be ignored for all other methods defined by this specification and for any extension methods for which it is not explicitly
     1440      <div id="rfc.figure.u.14"></div><pre class="inline"><span id="rfc.iref.g.16"></span>  Max-Forwards   = "Max-Forwards" ":" 1*DIGIT
     1441</pre><p id="rfc.section.10.5.p.3">The Max-Forwards value is a decimal integer indicating the remaining number of times this request message may be forwarded.</p>
     1442      <p id="rfc.section.10.5.p.4">Each proxy or gateway recipient of a TRACE or OPTIONS request containing a Max-Forwards header field <em class="bcp14">MUST</em> check and update its value prior to forwarding the request. If the received value is zero (0), the recipient <em class="bcp14">MUST NOT</em> forward the request; instead, it <em class="bcp14">MUST</em> respond as the final recipient. If the received Max-Forwards value is greater than zero, then the forwarded message <em class="bcp14">MUST</em> contain an updated Max-Forwards field with a value decremented by one (1).
     1443      </p>
     1444      <p id="rfc.section.10.5.p.5">The Max-Forwards header field <em class="bcp14">MAY</em> be ignored for all other methods defined by this specification and for any extension methods for which it is not explicitly
    14361445         referred to as part of that method definition.
    14371446      </p>
    14381447      <div id="rfc.iref.r.1"></div>
    14391448      <div id="rfc.iref.h.7"></div>
    1440       <h2 id="rfc.section.9.6"><a href="#rfc.section.9.6">9.6</a>&nbsp;<a id="header.referer" href="#header.referer">Referer</a></h2>
    1441       <p id="rfc.section.9.6.p.1">The Referer[sic] request-header field allows the client to specify, for the server's benefit, the address (URI) of the resource
     1449      <h2 id="rfc.section.10.6"><a href="#rfc.section.10.6">10.6</a>&nbsp;<a id="header.referer" href="#header.referer">Referer</a></h2>
     1450      <p id="rfc.section.10.6.p.1">The Referer[sic] request-header field allows the client to specify, for the server's benefit, the address (URI) of the resource
    14421451         from which the Request-URI was obtained (the "referrer", although the header field is misspelled.) The Referer request-header
    14431452         allows a server to generate lists of back-links to resources for interest, logging, optimized caching, etc. It also allows
    14441453         obsolete or mistyped links to be traced for maintenance. The Referer field <em class="bcp14">MUST NOT</em> be sent if the Request-URI was obtained from a source that does not have its own URI, such as input from the user keyboard.
    14451454      </p>
    1446       <div id="rfc.figure.u.13"></div><pre class="inline"><span id="rfc.iref.g.17"></span>  Referer        = "Referer" ":" ( absoluteURI | relativeURI )
    1447 </pre><p id="rfc.section.9.6.p.3">Example:</p>
    1448       <div id="rfc.figure.u.14"></div><pre class="text">    Referer: http://www.example.org/hypertext/Overview.html
    1449 </pre><p id="rfc.section.9.6.p.5">If the field value is a relative URI, it <em class="bcp14">SHOULD</em> be interpreted relative to the Request-URI. The URI <em class="bcp14">MUST NOT</em> include a fragment. See <a href="#encoding.sensitive.information.in.uris" title="Encoding Sensitive Information in URIs">Section&nbsp;11.2</a> for security considerations.
     1455      <div id="rfc.figure.u.15"></div><pre class="inline"><span id="rfc.iref.g.17"></span>  Referer        = "Referer" ":" ( absoluteURI | relativeURI )
     1456</pre><p id="rfc.section.10.6.p.3">Example:</p>
     1457      <div id="rfc.figure.u.16"></div><pre class="text">    Referer: http://www.example.org/hypertext/Overview.html
     1458</pre><p id="rfc.section.10.6.p.5">If the field value is a relative URI, it <em class="bcp14">SHOULD</em> be interpreted relative to the Request-URI. The URI <em class="bcp14">MUST NOT</em> include a fragment. See <a href="#encoding.sensitive.information.in.uris" title="Encoding Sensitive Information in URIs">Section&nbsp;12.2</a> for security considerations.
    14501459      </p>
    14511460      <div id="rfc.iref.r.2"></div>
    14521461      <div id="rfc.iref.h.8"></div>
    1453       <h2 id="rfc.section.9.7"><a href="#rfc.section.9.7">9.7</a>&nbsp;<a id="header.retry-after" href="#header.retry-after">Retry-After</a></h2>
    1454       <p id="rfc.section.9.7.p.1">The Retry-After response-header field can be used with a 503 (Service Unavailable) response to indicate how long the service
     1462      <h2 id="rfc.section.10.7"><a href="#rfc.section.10.7">10.7</a>&nbsp;<a id="header.retry-after" href="#header.retry-after">Retry-After</a></h2>
     1463      <p id="rfc.section.10.7.p.1">The Retry-After response-header field can be used with a 503 (Service Unavailable) response to indicate how long the service
    14551464         is expected to be unavailable to the requesting client. This field <em class="bcp14">MAY</em> also be used with any 3xx (Redirection) response to indicate the minimum time the user-agent is asked wait before issuing
    14561465         the redirected request. The value of this field can be either an HTTP-date or an integer number of seconds (in decimal) after
    14571466         the time of the response.
    14581467      </p>
    1459       <div id="rfc.figure.u.15"></div><pre class="inline"><span id="rfc.iref.g.18"></span>  Retry-After  = "Retry-After" ":" ( HTTP-date | delta-seconds )
    1460 </pre><p id="rfc.section.9.7.p.3">Two examples of its use are</p>
    1461       <div id="rfc.figure.u.16"></div><pre class="text">    Retry-After: Fri, 31 Dec 1999 23:59:59 GMT
     1468      <div id="rfc.figure.u.17"></div><pre class="inline"><span id="rfc.iref.g.18"></span>  Retry-After  = "Retry-After" ":" ( HTTP-date | delta-seconds )
     1469</pre><p id="rfc.section.10.7.p.3">Two examples of its use are</p>
     1470      <div id="rfc.figure.u.18"></div><pre class="text">    Retry-After: Fri, 31 Dec 1999 23:59:59 GMT
    14621471    Retry-After: 120
    1463 </pre><p id="rfc.section.9.7.p.5">In the latter example, the delay is 2 minutes.</p>
     1472</pre><p id="rfc.section.10.7.p.5">In the latter example, the delay is 2 minutes.</p>
    14641473      <div id="rfc.iref.s.42"></div>
    14651474      <div id="rfc.iref.h.9"></div>
    1466       <h2 id="rfc.section.9.8"><a href="#rfc.section.9.8">9.8</a>&nbsp;<a id="header.server" href="#header.server">Server</a></h2>
    1467       <p id="rfc.section.9.8.p.1">The Server response-header field contains information about the software used by the origin server to handle the request.
    1468          The field can contain multiple product tokens (<a href="p1-messaging.html#product.tokens" title="Product Tokens">Section 3.5</a> of <a href="#Part1" id="rfc.xref.Part1.9"><cite title="HTTP/1.1, part 1: URIs, Connections, and Message Parsing">[Part1]</cite></a>) and comments identifying the server and any significant subproducts. The product tokens are listed in order of their significance
     1475      <h2 id="rfc.section.10.8"><a href="#rfc.section.10.8">10.8</a>&nbsp;<a id="header.server" href="#header.server">Server</a></h2>
     1476      <p id="rfc.section.10.8.p.1">The Server response-header field contains information about the software used by the origin server to handle the request.
     1477         The field can contain multiple product tokens (<a href="p1-messaging.html#product.tokens" title="Product Tokens">Section 3.5</a> of <a href="#Part1" id="rfc.xref.Part1.15"><cite title="HTTP/1.1, part 1: URIs, Connections, and Message Parsing">[Part1]</cite></a>) and comments identifying the server and any significant subproducts. The product tokens are listed in order of their significance
    14691478         for identifying the application.
    14701479      </p>
    1471       <div id="rfc.figure.u.17"></div><pre class="inline"><span id="rfc.iref.g.19"></span>  Server         = "Server" ":" 1*( product | comment )
    1472 </pre><p id="rfc.section.9.8.p.3">Example:</p>
    1473       <div id="rfc.figure.u.18"></div><pre class="text">    Server: CERN/3.0 libwww/2.17
    1474 </pre><p id="rfc.section.9.8.p.5">If the response is being forwarded through a proxy, the proxy application <em class="bcp14">MUST NOT</em> modify the Server response-header. Instead, it <em class="bcp14">MUST</em> include a Via field (as described in <a href="p1-messaging.html#header.via" title="Via">Section 8.9</a> of <a href="#Part1" id="rfc.xref.Part1.10"><cite title="HTTP/1.1, part 1: URIs, Connections, and Message Parsing">[Part1]</cite></a>).
     1480      <div id="rfc.figure.u.19"></div><pre class="inline"><span id="rfc.iref.g.19"></span>  Server         = "Server" ":" 1*( product | comment )
     1481</pre><p id="rfc.section.10.8.p.3">Example:</p>
     1482      <div id="rfc.figure.u.20"></div><pre class="text">    Server: CERN/3.0 libwww/2.17
     1483</pre><p id="rfc.section.10.8.p.5">If the response is being forwarded through a proxy, the proxy application <em class="bcp14">MUST NOT</em> modify the Server response-header. Instead, it <em class="bcp14">MUST</em> include a Via field (as described in <a href="p1-messaging.html#header.via" title="Via">Section 8.9</a> of <a href="#Part1" id="rfc.xref.Part1.16"><cite title="HTTP/1.1, part 1: URIs, Connections, and Message Parsing">[Part1]</cite></a>).
    14751484      </p>
    14761485      <dl class="empty">
    … …  
    14821491      <div id="rfc.iref.u.1"></div>
    14831492      <div id="rfc.iref.h.10"></div>
    1484       <h2 id="rfc.section.9.9"><a href="#rfc.section.9.9">9.9</a>&nbsp;<a id="header.user-agent" href="#header.user-agent">User-Agent</a></h2>
    1485       <p id="rfc.section.9.9.p.1">The User-Agent request-header field contains information about the user agent originating the request. This is for statistical
     1493      <h2 id="rfc.section.10.9"><a href="#rfc.section.10.9">10.9</a>&nbsp;<a id="header.user-agent" href="#header.user-agent">User-Agent</a></h2>
     1494      <p id="rfc.section.10.9.p.1">The User-Agent request-header field contains information about the user agent originating the request. This is for statistical
    14861495         purposes, the tracing of protocol violations, and automated recognition of user agents for the sake of tailoring responses
    1487          to avoid particular user agent limitations. User agents <em class="bcp14">SHOULD</em> include this field with requests. The field can contain multiple product tokens (<a href="p1-messaging.html#product.tokens" title="Product Tokens">Section 3.5</a> of <a href="#Part1" id="rfc.xref.Part1.11"><cite title="HTTP/1.1, part 1: URIs, Connections, and Message Parsing">[Part1]</cite></a>) and comments identifying the agent and any subproducts which form a significant part of the user agent. By convention, the
     1496         to avoid particular user agent limitations. User agents <em class="bcp14">SHOULD</em> include this field with requests. The field can contain multiple product tokens (<a href="p1-messaging.html#product.tokens" title="Product Tokens">Section 3.5</a> of <a href="#Part1" id="rfc.xref.Part1.17"><cite title="HTTP/1.1, part 1: URIs, Connections, and Message Parsing">[Part1]</cite></a>) and comments identifying the agent and any subproducts which form a significant part of the user agent. By convention, the
    14881497         product tokens are listed in order of their significance for identifying the application.
    14891498      </p>
    1490       <div id="rfc.figure.u.19"></div><pre class="inline"><span id="rfc.iref.g.20"></span>  User-Agent     = "User-Agent" ":" 1*( product | comment )
    1491 </pre><p id="rfc.section.9.9.p.3">Example:</p>
    1492       <div id="rfc.figure.u.20"></div><pre class="text">    User-Agent: CERN-LineMode/2.15 libwww/2.17b3
    1493 </pre><h1 id="rfc.section.10"><a href="#rfc.section.10">10.</a>&nbsp;<a id="IANA.considerations" href="#IANA.considerations">IANA Considerations</a></h1>
    1494       <p id="rfc.section.10.p.1"> <span class="comment">[rfc.comment.1: TBD.]</span>
    1495       </p>
    1496       <h1 id="rfc.section.11"><a href="#rfc.section.11">11.</a>&nbsp;<a id="security.considerations" href="#security.considerations">Security Considerations</a></h1>
    1497       <p id="rfc.section.11.p.1">This section is meant to inform application developers, information providers, and users of the security limitations in HTTP/1.1
     1499      <div id="rfc.figure.u.21"></div><pre class="inline"><span id="rfc.iref.g.20"></span>  User-Agent     = "User-Agent" ":" 1*( product | comment )
     1500</pre><p id="rfc.section.10.9.p.3">Example:</p>
     1501      <div id="rfc.figure.u.22"></div><pre class="text">    User-Agent: CERN-LineMode/2.15 libwww/2.17b3
     1502</pre><h1 id="rfc.section.11"><a href="#rfc.section.11">11.</a>&nbsp;<a id="IANA.considerations" href="#IANA.considerations">IANA Considerations</a></h1>
     1503      <p id="rfc.section.11.p.1"> <span class="comment">[rfc.comment.1: TBD.]</span>
     1504      </p>
     1505      <h1 id="rfc.section.12"><a href="#rfc.section.12">12.</a>&nbsp;<a id="security.considerations" href="#security.considerations">Security Considerations</a></h1>
     1506      <p id="rfc.section.12.p.1">This section is meant to inform application developers, information providers, and users of the security limitations in HTTP/1.1
    14981507         as described by this document. The discussion does not include definitive solutions to the problems revealed, though it does
    14991508         make some suggestions for reducing security risks.
    15001509      </p>
    1501       <h2 id="rfc.section.11.1"><a href="#rfc.section.11.1">11.1</a>&nbsp;<a id="security.sensitive" href="#security.sensitive">Transfer of Sensitive Information</a></h2>
    1502       <p id="rfc.section.11.1.p.1">Like any generic data transfer protocol, HTTP cannot regulate the content of the data that is transferred, nor is there any
     1510      <h2 id="rfc.section.12.1"><a href="#rfc.section.12.1">12.1</a>&nbsp;<a id="security.sensitive" href="#security.sensitive">Transfer of Sensitive Information</a></h2>
     1511      <p id="rfc.section.12.1.p.1">Like any generic data transfer protocol, HTTP cannot regulate the content of the data that is transferred, nor is there any
    15031512         a priori method of determining the sensitivity of any particular piece of information within the context of any given request.
    15041513         Therefore, applications <em class="bcp14">SHOULD</em> supply as much control over this information as possible to the provider of that information. Four header fields are worth
    15051514         special mention in this context: Server, Via, Referer and From.
    15061515      </p>
    1507       <p id="rfc.section.11.1.p.2">Revealing the specific software version of the server might allow the server machine to become more vulnerable to attacks
     1516      <p id="rfc.section.12.1.p.2">Revealing the specific software version of the server might allow the server machine to become more vulnerable to attacks
    15081517         against software that is known to contain security holes. Implementors <em class="bcp14">SHOULD</em> make the Server header field a configurable option.
    15091518      </p>
    1510       <p id="rfc.section.11.1.p.3">Proxies which serve as a portal through a network firewall <em class="bcp14">SHOULD</em> take special precautions regarding the transfer of header information that identifies the hosts behind the firewall. In particular,
     1519      <p id="rfc.section.12.1.p.3">Proxies which serve as a portal through a network firewall <em class="bcp14">SHOULD</em> take special precautions regarding the transfer of header information that identifies the hosts behind the firewall. In particular,
    15111520         they <em class="bcp14">SHOULD</em> remove, or replace with sanitized versions, any Via fields generated behind the firewall.
    15121521      </p>
    1513       <p id="rfc.section.11.1.p.4">The Referer header allows reading patterns to be studied and reverse links drawn. Although it can be very useful, its power
     1522      <p id="rfc.section.12.1.p.4">The Referer header allows reading patterns to be studied and reverse links drawn. Although it can be very useful, its power
    15141523         can be abused if user details are not separated from the information contained in the Referer. Even when the personal information
    15151524         has been removed, the Referer header might indicate a private document's URI whose publication would be inappropriate.
    15161525      </p>
    1517       <p id="rfc.section.11.1.p.5">The information sent in the From field might conflict with the user's privacy interests or their site's security policy, and
     1526      <p id="rfc.section.12.1.p.5">The information sent in the From field might conflict with the user's privacy interests or their site's security policy, and
    15181527         hence it <em class="bcp14">SHOULD NOT</em> be transmitted without the user being able to disable, enable, and modify the contents of the field. The user <em class="bcp14">MUST</em> be able to set the contents of this field within a user preference or application defaults configuration.
    15191528      </p>
    1520       <p id="rfc.section.11.1.p.6">We suggest, though do not require, that a convenient toggle interface be provided for the user to enable or disable the sending
     1529      <p id="rfc.section.12.1.p.6">We suggest, though do not require, that a convenient toggle interface be provided for the user to enable or disable the sending
    15211530         of From and Referer information.
    15221531      </p>
    1523       <p id="rfc.section.11.1.p.7">The User-Agent (<a href="#header.user-agent" id="rfc.xref.header.user-agent.2" title="User-Agent">Section&nbsp;9.9</a>) or Server (<a href="#header.server" id="rfc.xref.header.server.2" title="Server">Section&nbsp;9.8</a>) header fields can sometimes be used to determine that a specific client or server have a particular security hole which
     1532      <p id="rfc.section.12.1.p.7">The User-Agent (<a href="#header.user-agent" id="rfc.xref.header.user-agent.2" title="User-Agent">Section&nbsp;10.9</a>) or Server (<a href="#header.server" id="rfc.xref.header.server.2" title="Server">Section&nbsp;10.8</a>) header fields can sometimes be used to determine that a specific client or server have a particular security hole which
    15241533         might be exploited. Unfortunately, this same information is often used for other valuable purposes for which HTTP currently
    15251534         has no better mechanism.
    15261535      </p>
    1527       <h2 id="rfc.section.11.2"><a href="#rfc.section.11.2">11.2</a>&nbsp;<a id="encoding.sensitive.information.in.uris" href="#encoding.sensitive.information.in.uris">Encoding Sensitive Information in URIs</a></h2>
    1528       <p id="rfc.section.11.2.p.1">Because the source of a link might be private information or might reveal an otherwise private information source, it is strongly
     1536      <h2 id="rfc.section.12.2"><a href="#rfc.section.12.2">12.2</a>&nbsp;<a id="encoding.sensitive.information.in.uris" href="#encoding.sensitive.information.in.uris">Encoding Sensitive Information in URIs</a></h2>
     1537      <p id="rfc.section.12.2.p.1">Because the source of a link might be private information or might reveal an otherwise private information source, it is strongly
    15291538         recommended that the user be able to select whether or not the Referer field is sent. For example, a browser client could
    15301539         have a toggle switch for browsing openly/anonymously, which would respectively enable/disable the sending of Referer and From
    15311540         information.
    15321541      </p>
    1533       <p id="rfc.section.11.2.p.2">Clients <em class="bcp14">SHOULD NOT</em> include a Referer header field in a (non-secure) HTTP request if the referring page was transferred with a secure protocol.
    1534       </p>
    1535       <p id="rfc.section.11.2.p.3">Authors of services should not use GET-based forms for the submission of sensitive data because that data will be encoded
     1542      <p id="rfc.section.12.2.p.2">Clients <em class="bcp14">SHOULD NOT</em> include a Referer header field in a (non-secure) HTTP request if the referring page was transferred with a secure protocol.
     1543      </p>
     1544      <p id="rfc.section.12.2.p.3">Authors of services should not use GET-based forms for the submission of sensitive data because that data will be encoded
    15361545         in the Request-URI. Many existing servers, proxies, and user agents log or display the Request-URI in places where it might
    15371546         be visible to third parties. Such services can use POST-based form submission instead.
    15381547      </p>
    1539       <h2 id="rfc.section.11.3"><a href="#rfc.section.11.3">11.3</a>&nbsp;<a id="location.spoofing" href="#location.spoofing">Location Headers and Spoofing</a></h2>
    1540       <p id="rfc.section.11.3.p.1">If a single server supports multiple organizations that do not trust one another, then it <em class="bcp14">MUST</em> check the values of Location and Content-Location headers in responses that are generated under control of said organizations
     1548      <h2 id="rfc.section.12.3"><a href="#rfc.section.12.3">12.3</a>&nbsp;<a id="location.spoofing" href="#location.spoofing">Location Headers and Spoofing</a></h2>
     1549      <p id="rfc.section.12.3.p.1">If a single server supports multiple organizations that do not trust one another, then it <em class="bcp14">MUST</em> check the values of Location and Content-Location headers in responses that are generated under control of said organizations
    15411550         to make sure that they do not attempt to invalidate resources over which they have no authority.
    15421551      </p>
    1543       <h1 id="rfc.section.12"><a href="#rfc.section.12">12.</a>&nbsp;<a id="ack" href="#ack">Acknowledgments</a></h1>
    1544       <h1 id="rfc.references"><a id="rfc.section.13" href="#rfc.section.13">13.</a> References
     1552      <h1 id="rfc.section.13"><a href="#rfc.section.13">13.</a>&nbsp;<a id="ack" href="#ack">Acknowledgments</a></h1>
     1553      <h1 id="rfc.references"><a id="rfc.section.14" href="#rfc.section.14">14.</a> References
    15451554      </h1>
    1546       <h2 id="rfc.references.1"><a href="#rfc.section.13.1" id="rfc.section.13.1">13.1</a> Normative References
     1555      <h2 id="rfc.references.1"><a href="#rfc.section.14.1" id="rfc.section.14.1">14.1</a> Normative References
    15471556      </h2>
    15481557      <table summary="Normative References">             
    … …  
    15831592         </tr>
    15841593      </table>
    1585       <h2 id="rfc.references.2"><a href="#rfc.section.13.2" id="rfc.section.13.2">13.2</a> Informative References
     1594      <h2 id="rfc.references.2"><a href="#rfc.section.14.2" id="rfc.section.14.2">14.2</a> Informative References
    15861595      </h2>
    15871596      <table summary="Informative References">         
    … …  
    16301639      <h1 id="rfc.section.A"><a href="#rfc.section.A">A.</a>&nbsp;<a id="compatibility" href="#compatibility">Compatibility with Previous Versions</a></h1>
    16311640      <h2 id="rfc.section.A.1"><a href="#rfc.section.A.1">A.1</a>&nbsp;<a id="changes.from.rfc.2068" href="#changes.from.rfc.2068">Changes from RFC 2068</a></h2>
    1632       <p id="rfc.section.A.1.p.1">Clarified which error code should be used for inbound server failures (e.g. DNS failures). (<a href="#status.504" id="rfc.xref.status.504.2" title="504 Gateway Timeout">Section&nbsp;8.5.5</a>).
    1633       </p>
    1634       <p id="rfc.section.A.1.p.2">201 (Created) had a race that required an Etag be sent when a resource is first created. (<a href="#status.201" id="rfc.xref.status.201.2" title="201 Created">Section&nbsp;8.2.2</a>).
     1641      <p id="rfc.section.A.1.p.1">Clarified which error code should be used for inbound server failures (e.g. DNS failures). (<a href="#status.504" id="rfc.xref.status.504.2" title="504 Gateway Timeout">Section&nbsp;9.5.5</a>).
     1642      </p>
     1643      <p id="rfc.section.A.1.p.2">201 (Created) had a race that required an Etag be sent when a resource is first created. (<a href="#status.201" id="rfc.xref.status.201.2" title="201 Created">Section&nbsp;9.2.2</a>).
    16351644      </p>
    16361645      <p id="rfc.section.A.1.p.3">Rewrite of message transmission requirements to make it much harder for implementors to get it wrong, as the consequences
    … …  
    16521661      </ol>
    16531662      <p id="rfc.section.A.1.p.4">This change adds the Expect header and 417 status code.</p>
    1654       <p id="rfc.section.A.1.p.5">Clean up confusion between 403 and 404 responses. (Section <a href="#status.403" id="rfc.xref.status.403.2" title="403 Forbidden">8.4.4</a>, <a href="#status.404" id="rfc.xref.status.404.2" title="404 Not Found">8.4.5</a>, and <a href="#status.410" id="rfc.xref.status.410.2" title="410 Gone">8.4.11</a>)
     1663      <p id="rfc.section.A.1.p.5">Clean up confusion between 403 and 404 responses. (Section <a href="#status.403" id="rfc.xref.status.403.2" title="403 Forbidden">9.4.4</a>, <a href="#status.404" id="rfc.xref.status.404.2" title="404 Not Found">9.4.5</a>, and <a href="#status.410" id="rfc.xref.status.410.2" title="410 Gone">9.4.11</a>)
    16551664      </p>
    16561665      <p id="rfc.section.A.1.p.6">The PATCH<span id="rfc.iref.p.3"></span><span id="rfc.iref.m.10"></span>, LINK<span id="rfc.iref.l.2"></span><span id="rfc.iref.m.11"></span>, UNLINK<span id="rfc.iref.u.2"></span><span id="rfc.iref.m.12"></span> methods were defined but not commonly implemented in previous versions of this specification. See <a href="#RFC2068" id="rfc.xref.RFC2068.3"><cite title="Hypertext Transfer Protocol -- HTTP/1.1">[RFC2068]</cite></a>.
    16571666      </p>
    16581667      <h2 id="rfc.section.A.2"><a href="#rfc.section.A.2">A.2</a>&nbsp;<a id="changes.from.rfc.2616" href="#changes.from.rfc.2616">Changes from RFC 2616</a></h2>
    1659       <p id="rfc.section.A.2.p.1">Clarify definition of POST. (<a href="#POST" id="rfc.xref.POST.2" title="POST">Section&nbsp;7.5</a>)
     1668      <p id="rfc.section.A.2.p.1">Clarify definition of POST. (<a href="#POST" id="rfc.xref.POST.2" title="POST">Section&nbsp;8.5</a>)
    16601669      </p>
    16611670      <p id="rfc.section.A.2.p.2">Failed to consider that there are many other request methods that are safe to automatically redirect, and further that the
    1662          user agent is able to make that determination based on the request method semantics. (Sections <a href="#status.301" id="rfc.xref.status.301.2" title="301 Moved Permanently">8.3.2</a>, <a href="#status.302" id="rfc.xref.status.302.2" title="302 Found">8.3.3</a> and <a href="#status.307" id="rfc.xref.status.307.2" title="307 Temporary Redirect">8.3.8</a> )
     1671         user agent is able to make that determination based on the request method semantics. (Sections <a href="#status.301" id="rfc.xref.status.301.2" title="301 Moved Permanently">9.3.2</a>, <a href="#status.302" id="rfc.xref.status.302.2" title="302 Found">9.3.3</a> and <a href="#status.307" id="rfc.xref.status.307.2" title="307 Temporary Redirect">9.3.8</a> )
    16631672      </p>
    16641673      <p id="rfc.section.A.2.p.3">Correct syntax of Location header to allow fragment, as referred symbol wasn't what was expected, and add some clarifications
    1665          as to when it would not be appropriate. (<a href="#header.location" id="rfc.xref.header.location.3" title="Location">Section&nbsp;9.4</a>)
     1674         as to when it would not be appropriate. (<a href="#header.location" id="rfc.xref.header.location.3" title="Location">Section&nbsp;10.4</a>)
    16661675      </p>
    16671676      <p id="rfc.section.A.2.p.4">In the description of the Server header, the Via field was described as a SHOULD. The requirement was and is stated correctly
    1668          in the description of the Via header in <a href="p1-messaging.html#header.via" title="Via">Section 8.9</a> of <a href="#Part1" id="rfc.xref.Part1.12"><cite title="HTTP/1.1, part 1: URIs, Connections, and Message Parsing">[Part1]</cite></a>. (<a href="#header.server" id="rfc.xref.header.server.3" title="Server">Section&nbsp;9.8</a>)
     1677         in the description of the Via header in <a href="p1-messaging.html#header.via" title="Via">Section 8.9</a> of <a href="#Part1" id="rfc.xref.Part1.18"><cite title="HTTP/1.1, part 1: URIs, Connections, and Message Parsing">[Part1]</cite></a>. (<a href="#header.server" id="rfc.xref.header.server.3" title="Server">Section&nbsp;10.8</a>)
    16691678      </p>
    16701679      <h1 id="rfc.section.B"><a href="#rfc.section.B">B.</a>&nbsp;Change Log (to be removed by RFC Editor before publication)
    … …  
    17131722      <ul>
    17141723         <li>Move "Product Tokens" section (back) into Part 1, as "token" is used in the definition of the Upgrade header.</li>
     1724         <li>Add explicit references to BNF syntax and rules imported from other parts of the specification.</li>
    17151725      </ul>
    17161726      <h1><a id="rfc.copyright" href="#rfc.copyright">Full Copyright Statement</a></h1>
    … …  
    17471757         <ul class="ind">
    17481758            <li class="indline0"><a id="rfc.index.1" href="#rfc.index.1"><b>1</b></a><ul class="ind">
    1749                   <li class="indline1">100 Continue (status code)&nbsp;&nbsp;<a class="iref" href="#rfc.xref.status.100.1">4</a>, <a class="iref" href="#rfc.iref.23"><b>8.1.1</b></a></li>
    1750                   <li class="indline1">101 Switching Protocols (status code)&nbsp;&nbsp;<a class="iref" href="#rfc.xref.status.101.1">4</a>, <a class="iref" href="#rfc.iref.24"><b>8.1.2</b></a></li>
     1759                  <li class="indline1">100 Continue (status code)&nbsp;&nbsp;<a class="iref" href="#rfc.xref.status.100.1">5</a>, <a class="iref" href="#rfc.iref.23"><b>9.1.1</b></a></li>
     1760                  <li class="indline1">101 Switching Protocols (status code)&nbsp;&nbsp;<a class="iref" href="#rfc.xref.status.101.1">5</a>, <a class="iref" href="#rfc.iref.24"><b>9.1.2</b></a></li>
    17511761               </ul>
    17521762            </li>
    17531763            <li class="indline0"><a id="rfc.index.2" href="#rfc.index.2"><b>2</b></a><ul class="ind">
    1754                   <li class="indline1">200 OK (status code)&nbsp;&nbsp;<a class="iref" href="#rfc.xref.status.200.1">4</a>, <a class="iref" href="#rfc.iref.25"><b>8.2.1</b></a></li>
    1755                   <li class="indline1">201 Created (status code)&nbsp;&nbsp;<a class="iref" href="#rfc.xref.status.201.1">4</a>, <a class="iref" href="#rfc.iref.26"><b>8.2.2</b></a>, <a class="iref" href="#rfc.xref.status.201.2">A.1</a></li>
    1756                   <li class="indline1">202 Accepted (status code)&nbsp;&nbsp;<a class="iref" href="#rfc.xref.status.202.1">4</a>, <a class="iref" href="#rfc.iref.27"><b>8.2.3</b></a></li>
    1757                   <li class="indline1">203 Non-Authoritative Information (status code)&nbsp;&nbsp;<a class="iref" href="#rfc.xref.status.203.1">4</a>, <a class="iref" href="#rfc.iref.28"><b>8.2.4</b></a></li>
    1758                   <li class="indline1">204 No Content (status code)&nbsp;&nbsp;<a class="iref" href="#rfc.xref.status.204.1">4</a>, <a class="iref" href="#rfc.iref.29"><b>8.2.5</b></a></li>
    1759                   <li class="indline1">205 Reset Content (status code)&nbsp;&nbsp;<a class="iref" href="#rfc.xref.status.205.1">4</a>, <a class="iref" href="#rfc.iref.30"><b>8.2.6</b></a></li>
    1760                   <li class="indline1">206 Partial Content (status code)&nbsp;&nbsp;<a class="iref" href="#rfc.xref.status.206.1">4</a>, <a class="iref" href="#rfc.iref.31"><b>8.2.7</b></a></li>
     1764                  <li class="indline1">200 OK (status code)&nbsp;&nbsp;<a class="iref" href="#rfc.xref.status.200.1">5</a>, <a class="iref" href="#rfc.iref.25"><b>9.2.1</b></a></li>
     1765                  <li class="indline1">201 Created (status code)&nbsp;&nbsp;<a class="iref" href="#rfc.xref.status.201.1">5</a>, <a class="iref" href="#rfc.iref.26"><b>9.2.2</b></a>, <a class="iref" href="#rfc.xref.status.201.2">A.1</a></li>
     1766                  <li class="indline1">202 Accepted (status code)&nbsp;&nbsp;<a class="iref" href="#rfc.xref.status.202.1">5</a>, <a class="iref" href="#rfc.iref.27"><b>9.2.3</b></a></li>
     1767                  <li class="indline1">203 Non-Authoritative Information (status code)&nbsp;&nbsp;<a class="iref" href="#rfc.xref.status.203.1">5</a>, <a class="iref" href="#rfc.iref.28"><b>9.2.4</b></a></li>
     1768                  <li class="indline1">204 No Content (status code)&nbsp;&nbsp;<a class="iref" href="#rfc.xref.status.204.1">5</a>, <a class="iref" href="#rfc.iref.29"><b>9.2.5</b></a></li>
     1769                  <li class="indline1">205 Reset Content (status code)&nbsp;&nbsp;<a class="iref" href="#rfc.xref.status.205.1">5</a>, <a class="iref" href="#rfc.iref.30"><b>9.2.6</b></a></li>
     1770                  <li class="indline1">206 Partial Content (status code)&nbsp;&nbsp;<a class="iref" href="#rfc.xref.status.206.1">5</a>, <a class="iref" href="#rfc.iref.31"><b>9.2.7</b></a></li>
    17611771               </ul>
    17621772            </li>
    17631773            <li class="indline0"><a id="rfc.index.3" href="#rfc.index.3"><b>3</b></a><ul class="ind">
    1764                   <li class="indline1">300 Multiple Choices (status code)&nbsp;&nbsp;<a class="iref" href="#rfc.xref.status.300.1">4</a>, <a class="iref" href="#rfc.iref.32"><b>8.3.1</b></a></li>
    1765                   <li class="indline1">301 Moved Permanently (status code)&nbsp;&nbsp;<a class="iref" href="#rfc.xref.status.301.1">4</a>, <a class="iref" href="#rfc.iref.33"><b>8.3.2</b></a>, <a class="iref" href="#rfc.xref.status.301.2">A.2</a></li>
    1766                   <li class="indline1">302 Found (status code)&nbsp;&nbsp;<a class="iref" href="#rfc.xref.status.302.1">4</a>, <a class="iref" href="#rfc.iref.34"><b>8.3.3</b></a>, <a class="iref" href="#rfc.xref.status.302.2">A.2</a></li>
    1767                   <li class="indline1">303 See Other (status code)&nbsp;&nbsp;<a class="iref" href="#rfc.xref.status.303.1">4</a>, <a class="iref" href="#rfc.iref.35"><b>8.3.4</b></a></li>
    1768                   <li class="indline1">304 Not Modified (status code)&nbsp;&nbsp;<a class="iref" href="#rfc.xref.status.304.1">4</a>, <a class="iref" href="#rfc.iref.36"><b>8.3.5</b></a></li>
    1769                   <li class="indline1">305 Use Proxy (status code)&nbsp;&nbsp;<a class="iref" href="#rfc.xref.status.305.1">4</a>, <a class="iref" href="#rfc.iref.37"><b>8.3.6</b></a></li>
    1770                   <li class="indline1">306 (Unused) (status code)&nbsp;&nbsp;<a class="iref" href="#rfc.iref.38"><b>8.3.7</b></a></li>
    1771                   <li class="indline1">307 Temporary Redirect (status code)&nbsp;&nbsp;<a class="iref" href="#rfc.xref.status.307.1">4</a>, <a class="iref" href="#rfc.iref.39"><b>8.3.8</b></a>, <a class="iref" href="#rfc.xref.status.307.2">A.2</a></li>
     1774                  <li class="indline1">300 Multiple Choices (status code)&nbsp;&nbsp;<a class="iref" href="#rfc.xref.status.300.1">5</a>, <a class="iref" href="#rfc.iref.32"><b>9.3.1</b></a></li>
     1775                  <li class="indline1">301 Moved Permanently (status code)&nbsp;&nbsp;<a class="iref" href="#rfc.xref.status.301.1">5</a>, <a class="iref" href="#rfc.iref.33"><b>9.3.2</b></a>, <a class="iref" href="#rfc.xref.status.301.2">A.2</a></li>
     1776                  <li class="indline1">302 Found (status code)&nbsp;&nbsp;<a class="iref" href="#rfc.xref.status.302.1">5</a>, <a class="iref" href="#rfc.iref.34"><b>9.3.3</b></a>, <a class="iref" href="#rfc.xref.status.302.2">A.2</a></li>
     1777                  <li class="indline1">303 See Other (status code)&nbsp;&nbsp;<a class="iref" href="#rfc.xref.status.303.1">5</a>, <a class="iref" href="#rfc.iref.35"><b>9.3.4</b></a></li>
     1778                  <li class="indline1">304 Not Modified (status code)&nbsp;&nbsp;<a class="iref" href="#rfc.xref.status.304.1">5</a>, <a class="iref" href="#rfc.iref.36"><b>9.3.5</b></a></li>
     1779                  <li class="indline1">305 Use Proxy (status code)&nbsp;&nbsp;<a class="iref" href="#rfc.xref.status.305.1">5</a>, <a class="iref" href="#rfc.iref.37"><b>9.3.6</b></a></li>
     1780                  <li class="indline1">306 (Unused) (status code)&nbsp;&nbsp;<a class="iref" href="#rfc.iref.38"><b>9.3.7</b></a></li>
     1781                  <li class="indline1">307 Temporary Redirect (status code)&nbsp;&nbsp;<a class="iref" href="#rfc.xref.status.307.1">5</a>, <a class="iref" href="#rfc.iref.39"><b>9.3.8</b></a>, <a class="iref" href="#rfc.xref.status.307.2">A.2</a></li>
    17721782               </ul>
    17731783            </li>
    17741784            <li class="indline0"><a id="rfc.index.4" href="#rfc.index.4"><b>4</b></a><ul class="ind">
    1775                   <li class="indline1">400 Bad Request (status code)&nbsp;&nbsp;<a class="iref" href="#rfc.xref.status.400.1">4</a>, <a class="iref" href="#rfc.iref.40"><b>8.4.1</b></a></li>
    1776                   <li class="indline1">401 Unauthorized (status code)&nbsp;&nbsp;<a class="iref" href="#rfc.xref.status.401.1">4</a>, <a class="iref" href="#rfc.iref.41"><b>8.4.2</b></a></li>
    1777                   <li class="indline1">402 Payment Required (status code)&nbsp;&nbsp;<a class="iref" href="#rfc.xref.status.402.1">4</a>, <a class="iref" href="#rfc.iref.42"><b>8.4.3</b></a></li>
    1778                   <li class="indline1">403 Forbidden (status code)&nbsp;&nbsp;<a class="iref" href="#rfc.xref.status.403.1">4</a>, <a class="iref" href="#rfc.iref.43"><b>8.4.4</b></a>, <a class="iref" href="#rfc.xref.status.403.2">A.1</a></li>
    1779                   <li class="indline1">404 Not Found (status code)&nbsp;&nbsp;<a class="iref" href="#rfc.xref.status.404.1">4</a>, <a class="iref" href="#rfc.iref.44"><b>8.4.5</b></a>, <a class="iref" href="#rfc.xref.status.404.2">A.1</a></li>
    1780                   <li class="indline1">405 Method Not Allowed (status code)&nbsp;&nbsp;<a class="iref" href="#rfc.xref.status.405.1">4</a>, <a class="iref" href="#rfc.iref.45"><b>8.4.6</b></a></li>
    1781                   <li class="indline1">406 Not Acceptable (status code)&nbsp;&nbsp;<a class="iref" href="#rfc.xref.status.406.1">4</a>, <a class="iref" href="#rfc.iref.46"><b>8.4.7</b></a></li>
    1782                   <li class="indline1">407 Proxy Authentication Required (status code)&nbsp;&nbsp;<a class="iref" href="#rfc.xref.status.407.1">4</a>, <a class="iref" href="#rfc.iref.47"><b>8.4.8</b></a></li>
    1783                   <li class="indline1">408 Request Timeout (status code)&nbsp;&nbsp;<a class="iref" href="#rfc.xref.status.408.1">4</a>, <a class="iref" href="#rfc.iref.48"><b>8.4.9</b></a></li>
    1784                   <li class="indline1">409 Conflict (status code)&nbsp;&nbsp;<a class="iref" href="#rfc.xref.status.409.1">4</a>, <a class="iref" href="#rfc.iref.49"><b>8.4.10</b></a></li>
    1785                   <li class="indline1">410 Gone (status code)&nbsp;&nbsp;<a class="iref" href="#rfc.xref.status.410.1">4</a>, <a class="iref" href="#rfc.iref.50"><b>8.4.11</b></a>, <a class="iref" href="#rfc.xref.status.410.2">A.1</a></li>
    1786                   <li class="indline1">411 Length Required (status code)&nbsp;&nbsp;<a class="iref" href="#rfc.xref.status.411.1">4</a>, <a class="iref" href="#rfc.iref.51"><b>8.4.12</b></a></li>
    1787                   <li class="indline1">412 Precondition Failed (status code)&nbsp;&nbsp;<a class="iref" href="#rfc.xref.status.412.1">4</a>, <a class="iref" href="#rfc.iref.52"><b>8.4.13</b></a></li>
    1788                   <li class="indline1">413 Request Entity Too Large (status code)&nbsp;&nbsp;<a class="iref" href="#rfc.xref.status.413.1">4</a>, <a class="iref" href="#rfc.iref.53"><b>8.4.14</b></a></li>
    1789                   <li class="indline1">414 Request-URI Too Long (status code)&nbsp;&nbsp;<a class="iref" href="#rfc.xref.status.414.1">4</a>, <a class="iref" href="#rfc.iref.54"><b>8.4.15</b></a></li>
    1790                   <li class="indline1">415 Unsupported Media Type (status code)&nbsp;&nbsp;<a class="iref" href="#rfc.xref.status.415.1">4</a>, <a class="iref" href="#rfc.iref.55"><b>8.4.16</b></a></li>
    1791                   <li class="indline1">416 Requested Range Not Satisfiable (status code)&nbsp;&nbsp;<a class="iref" href="#rfc.xref.status.416.1">4</a>, <a class="iref" href="#rfc.iref.56"><b>8.4.17</b></a></li>
    1792                   <li class="indline1">417 Expectation Failed (status code)&nbsp;&nbsp;<a class="iref" href="#rfc.xref.status.417.1">4</a>, <a class="iref" href="#rfc.iref.57"><b>8.4.18</b></a></li>
     1785                  <li class="indline1">400 Bad Request (status code)&nbsp;&nbsp;<a class="iref" href="#rfc.xref.status.400.1">5</a>, <a class="iref" href="#rfc.iref.40"><b>9.4.1</b></a></li>
     1786                  <li class="indline1">401 Unauthorized (status code)&nbsp;&nbsp;<a class="iref" href="#rfc.xref.status.401.1">5</a>, <a class="iref" href="#rfc.iref.41"><b>9.4.2</b></a></li>
     1787                  <li class="indline1">402 Payment Required (status code)&nbsp;&nbsp;<a class="iref" href="#rfc.xref.status.402.1">5</a>, <a class="iref" href="#rfc.iref.42"><b>9.4.3</b></a></li>
     1788                  <li class="indline1">403 Forbidden (status code)&nbsp;&nbsp;<a class="iref" href="#rfc.xref.status.403.1">5</a>, <a class="iref" href="#rfc.iref.43"><b>9.4.4</b></a>, <a class="iref" href="#rfc.xref.status.403.2">A.1</a></li>
     1789                  <li class="indline1">404 Not Found (status code)&nbsp;&nbsp;<a class="iref" href="#rfc.xref.status.404.1">5</a>, <a class="iref" href="#rfc.iref.44"><b>9.4.5</b></a>, <a class="iref" href="#rfc.xref.status.404.2">A.1</a></li>
     1790                  <li class="indline1">405 Method Not Allowed (status code)&nbsp;&nbsp;<a class="iref" href="#rfc.xref.status.405.1">5</a>, <a class="iref" href="#rfc.iref.45"><b>9.4.6</b></a></li>
     1791                  <li class="indline1">406 Not Acceptable (status code)&nbsp;&nbsp;<a class="iref" href="#rfc.xref.status.406.1">5</a>, <a class="iref" href="#rfc.iref.46"><b>9.4.7</b></a></li>
     1792                  <li class="indline1">407 Proxy Authentication Required (status code)&nbsp;&nbsp;<a class="iref" href="#rfc.xref.status.407.1">5</a>, <a class="iref" href="#rfc.iref.47"><b>9.4.8</b></a></li>
     1793                  <li class="indline1">408 Request Timeout (status code)&nbsp;&nbsp;<a class="iref" href="#rfc.xref.status.408.1">5</a>, <a class="iref" href="#rfc.iref.48"><b>9.4.9</b></a></li>
     1794                  <li class="indline1">409 Conflict (status code)&nbsp;&nbsp;<a class="iref" href="#rfc.xref.status.409.1">5</a>, <a class="iref" href="#rfc.iref.49"><b>9.4.10</b></a></li>
     1795                  <li class="indline1">410 Gone (status code)&nbsp;&nbsp;<a class="iref" href="#rfc.xref.status.410.1">5</a>, <a class="iref" href="#rfc.iref.50"><b>9.4.11</b></a>, <a class="iref" href="#rfc.xref.status.410.2">A.1</a></li>
     1796                  <li class="indline1">411 Length Required (status code)&nbsp;&nbsp;<a class="iref" href="#rfc.xref.status.411.1">5</a>, <a class="iref" href="#rfc.iref.51"><b>9.4.12</b></a></li>
     1797                  <li class="indline1">412 Precondition Failed (status code)&nbsp;&nbsp;<a class="iref" href="#rfc.xref.status.412.1">5</a>, <a class="iref" href="#rfc.iref.52"><b>9.4.13</b></a></li>
     1798                  <li class="indline1">413 Request Entity Too Large (status code)&nbsp;&nbsp;<a class="iref" href="#rfc.xref.status.413.1">5</a>, <a class="iref" href="#rfc.iref.53"><b>9.4.14</b></a></li>
     1799                  <li class="indline1">414 Request-URI Too Long (status code)&nbsp;&nbsp;<a class="iref" href="#rfc.xref.status.414.1">5</a>, <a class="iref" href="#rfc.iref.54"><b>9.4.15</b></a></li>
     1800                  <li class="indline1">415 Unsupported Media Type (status code)&nbsp;&nbsp;<a class="iref" href="#rfc.xref.status.415.1">5</a>, <a class="iref" href="#rfc.iref.55"><b>9.4.16</b></a></li>
     1801                  <li class="indline1">416 Requested Range Not Satisfiable (status code)&nbsp;&nbsp;<a class="iref" href="#rfc.xref.status.416.1">5</a>, <a class="iref" href="#rfc.iref.56"><b>9.4.17</b></a></li>
     1802                  <li class="indline1">417 Expectation Failed (status code)&nbsp;&nbsp;<a class="iref" href="#rfc.xref.status.417.1">5</a>, <a class="iref" href="#rfc.iref.57"><b>9.4.18</b></a></li>
    17931803               </ul>
    17941804            </li>
    17951805            <li class="indline0"><a id="rfc.index.5" href="#rfc.index.5"><b>5</b></a><ul class="ind">
    1796                   <li class="indline1">500 Internal Server Error (status code)&nbsp;&nbsp;<a class="iref" href="#rfc.xref.status.500.1">4</a>, <a class="iref" href="#rfc.iref.58"><b>8.5.1</b></a></li>
    1797                   <li class="indline1">501 Not Implemented (status code)&nbsp;&nbsp;<a class="iref" href="#rfc.xref.status.501.1">4</a>, <a class="iref" href="#rfc.iref.59"><b>8.5.2</b></a></li>
    1798                   <li class="indline1">502 Bad Gateway (status code)&nbsp;&nbsp;<a class="iref" href="#rfc.xref.status.502.1">4</a>, <a class="iref" href="#rfc.iref.60"><b>8.5.3</b></a></li>
    1799                   <li class="indline1">503 Service Unavailable (status code)&nbsp;&nbsp;<a class="iref" href="#rfc.xref.status.503.1">4</a>, <a class="iref" href="#rfc.iref.61"><b>8.5.4</b></a></li>
    1800                   <li class="indline1">504 Gateway Timeout (status code)&nbsp;&nbsp;<a class="iref" href="#rfc.xref.status.504.1">4</a>, <a class="iref" href="#rfc.iref.62"><b>8.5.5</b></a>, <a class="iref" href="#rfc.xref.status.504.2">A.1</a></li>
    1801                   <li class="indline1">505 HTTP Version Not Supported (status code)&nbsp;&nbsp;<a class="iref" href="#rfc.xref.status.505.1">4</a>, <a class="iref" href="#rfc.iref.63"><b>8.5.6</b></a></li>
     1806                  <li class="indline1">500 Internal Server Error (status code)&nbsp;&nbsp;<a class="iref" href="#rfc.xref.status.500.1">5</a>, <a class="iref" href="#rfc.iref.58"><b>9.5.1</b></a></li>
     1807                  <li class="indline1">501 Not Implemented (status code)&nbsp;&nbsp;<a class="iref" href="#rfc.xref.status.501.1">5</a>, <a class="iref" href="#rfc.iref.59"><b>9.5.2</b></a></li>
     1808                  <li class="indline1">502 Bad Gateway (status code)&nbsp;&nbsp;<a class="iref" href="#rfc.xref.status.502.1">5</a>, <a class="iref" href="#rfc.iref.60"><b>9.5.3</b></a></li>
     1809                  <li class="indline1">503 Service Unavailable (status code)&nbsp;&nbsp;<a class="iref" href="#rfc.xref.status.503.1">5</a>, <a class="iref" href="#rfc.iref.61"><b>9.5.4</b></a></li>
     1810                  <li class="indline1">504 Gateway Timeout (status code)&nbsp;&nbsp;<a class="iref" href="#rfc.xref.status.504.1">5</a>, <a class="iref" href="#rfc.iref.62"><b>9.5.5</b></a>, <a class="iref" href="#rfc.xref.status.504.2">A.1</a></li>
     1811                  <li class="indline1">505 HTTP Version Not Supported (status code)&nbsp;&nbsp;<a class="iref" href="#rfc.xref.status.505.1">5</a>, <a class="iref" href="#rfc.iref.63"><b>9.5.6</b></a></li>
    18021812               </ul>
    18031813            </li>
    18041814            <li class="indline0"><a id="rfc.index.A" href="#rfc.index.A"><b>A</b></a><ul class="ind">
    1805                   <li class="indline1">Allow header&nbsp;&nbsp;<a class="iref" href="#rfc.xref.header.allow.1">2</a>, <a class="iref" href="#rfc.iref.a.1"><b>9.1</b></a></li>
     1815                  <li class="indline1">Allow header&nbsp;&nbsp;<a class="iref" href="#rfc.xref.header.allow.1">3</a>, <a class="iref" href="#rfc.iref.a.1"><b>10.1</b></a></li>
    18061816               </ul>
    18071817            </li>
    18081818            <li class="indline0"><a id="rfc.index.C" href="#rfc.index.C"><b>C</b></a><ul class="ind">
    1809                   <li class="indline1">CONNECT method&nbsp;&nbsp;<a class="iref" href="#rfc.xref.CONNECT.1">2</a>, <a class="iref" href="#rfc.iref.c.1"><b>7.9</b></a></li>
     1819                  <li class="indline1">CONNECT method&nbsp;&nbsp;<a class="iref" href="#rfc.xref.CONNECT.1">3</a>, <a class="iref" href="#rfc.iref.c.1"><b>8.9</b></a></li>
    18101820               </ul>
    18111821            </li>
    18121822            <li class="indline0"><a id="rfc.index.D" href="#rfc.index.D"><b>D</b></a><ul class="ind">
    1813                   <li class="indline1">DELETE method&nbsp;&nbsp;<a class="iref" href="#rfc.xref.DELETE.1">2</a>, <a class="iref" href="#rfc.iref.d.1"><b>7.7</b></a></li>
     1823                  <li class="indline1">DELETE method&nbsp;&nbsp;<a class="iref" href="#rfc.xref.DELETE.1">3</a>, <a class="iref" href="#rfc.iref.d.1"><b>8.7</b></a></li>
    18141824               </ul>
    18151825            </li>
    18161826            <li class="indline0"><a id="rfc.index.E" href="#rfc.index.E"><b>E</b></a><ul class="ind">
    1817                   <li class="indline1">Expect header&nbsp;&nbsp;<a class="iref" href="#rfc.xref.header.expect.1">3</a>, <a class="iref" href="#rfc.xref.header.expect.2">8.4.18</a>, <a class="iref" href="#rfc.iref.e.1"><b>9.2</b></a></li>
     1827                  <li class="indline1">Expect header&nbsp;&nbsp;<a class="iref" href="#rfc.xref.header.expect.1">4</a>, <a class="iref" href="#rfc.xref.header.expect.2">9.4.18</a>, <a class="iref" href="#rfc.iref.e.1"><b>10.2</b></a></li>
    18181828               </ul>
    18191829            </li>
    18201830            <li class="indline0"><a id="rfc.index.F" href="#rfc.index.F"><b>F</b></a><ul class="ind">
    1821                   <li class="indline1">From header&nbsp;&nbsp;<a class="iref" href="#rfc.xref.header.from.1">3</a>, <a class="iref" href="#rfc.iref.f.1"><b>9.3</b></a></li>
     1831                  <li class="indline1">From header&nbsp;&nbsp;<a class="iref" href="#rfc.xref.header.from.1">4</a>, <a class="iref" href="#rfc.iref.f.1"><b>10.3</b></a></li>
    18221832               </ul>
    18231833            </li>
    18241834            <li class="indline0"><a id="rfc.index.G" href="#rfc.index.G"><b>G</b></a><ul class="ind">
    1825                   <li class="indline1">GET method&nbsp;&nbsp;<a class="iref" href="#rfc.xref.GET.1">2</a>, <a class="iref" href="#rfc.iref.g.8"><b>7.3</b></a></li>
     1835                  <li class="indline1">GET method&nbsp;&nbsp;<a class="iref" href="#rfc.xref.GET.1">3</a>, <a class="iref" href="#rfc.iref.g.8"><b>8.3</b></a></li>
    18261836                  <li class="indline1"><tt>Grammar</tt>&nbsp;&nbsp;
    18271837                     <ul class="ind">
    1828                         <li class="indline1"><tt>Allow</tt>&nbsp;&nbsp;<a class="iref" href="#rfc.iref.g.9"><b>9.1</b></a></li>
    1829                         <li class="indline1"><tt>Expect</tt>&nbsp;&nbsp;<a class="iref" href="#rfc.iref.g.10"><b>9.2</b></a></li>
    1830                         <li class="indline1"><tt>expect-params</tt>&nbsp;&nbsp;<a class="iref" href="#rfc.iref.g.13"><b>9.2</b></a></li>
    1831                         <li class="indline1"><tt>expectation</tt>&nbsp;&nbsp;<a class="iref" href="#rfc.iref.g.11"><b>9.2</b></a></li>
    1832                         <li class="indline1"><tt>expectation-extension</tt>&nbsp;&nbsp;<a class="iref" href="#rfc.iref.g.12"><b>9.2</b></a></li>
    1833                         <li class="indline1"><tt>extension-code</tt>&nbsp;&nbsp;<a class="iref" href="#rfc.iref.g.5"><b>4</b></a></li>
    1834                         <li class="indline1"><tt>extension-method</tt>&nbsp;&nbsp;<a class="iref" href="#rfc.iref.g.2"><b>2</b></a></li>
    1835                         <li class="indline1"><tt>From</tt>&nbsp;&nbsp;<a class="iref" href="#rfc.iref.g.14"><b>9.3</b></a></li>
    1836                         <li class="indline1"><tt>Location</tt>&nbsp;&nbsp;<a class="iref" href="#rfc.iref.g.15"><b>9.4</b></a></li>
    1837                         <li class="indline1"><tt>Max-Forwards</tt>&nbsp;&nbsp;<a class="iref" href="#rfc.iref.g.16"><b>9.5</b></a></li>
    1838                         <li class="indline1"><tt>Method</tt>&nbsp;&nbsp;<a class="iref" href="#rfc.iref.g.1"><b>2</b></a></li>
    1839                         <li class="indline1"><tt>Reason-Phrase</tt>&nbsp;&nbsp;<a class="iref" href="#rfc.iref.g.6"><b>4</b></a></li>
    1840                         <li class="indline1"><tt>Referer</tt>&nbsp;&nbsp;<a class="iref" href="#rfc.iref.g.17"><b>9.6</b></a></li>
    1841                         <li class="indline1"><tt>request-header</tt>&nbsp;&nbsp;<a class="iref" href="#rfc.iref.g.3"><b>3</b></a></li>
    1842                         <li class="indline1"><tt>response-header</tt>&nbsp;&nbsp;<a class="iref" href="#rfc.iref.g.7"><b>5</b></a></li>
    1843                         <li class="indline1"><tt>Retry-After</tt>&nbsp;&nbsp;<a class="iref" href="#rfc.iref.g.18"><b>9.7</b></a></li>
    1844                         <li class="indline1"><tt>Server</tt>&nbsp;&nbsp;<a class="iref" href="#rfc.iref.g.19"><b>9.8</b></a></li>
    1845                         <li class="indline1"><tt>Status-Code</tt>&nbsp;&nbsp;<a class="iref" href="#rfc.iref.g.4"><b>4</b></a></li>
    1846                         <li class="indline1"><tt>User-Agent</tt>&nbsp;&nbsp;<a class="iref" href="#rfc.iref.g.20"><b>9.9</b></a></li>
     1838                        <li class="indline1"><tt>Allow</tt>&nbsp;&nbsp;<a class="iref" href="#rfc.iref.g.9"><b>10.1</b></a></li>
     1839                        <li class="indline1"><tt>Expect</tt>&nbsp;&nbsp;<a class="iref" href="#rfc.iref.g.10"><b>10.2</b></a></li>
     1840                        <li class="indline1"><tt>expect-params</tt>&nbsp;&nbsp;<a class="iref" href="#rfc.iref.g.13"><b>10.2</b></a></li>
     1841                        <li class="indline1"><tt>expectation</tt>&nbsp;&nbsp;<a class="iref" href="#rfc.iref.g.11"><b>10.2</b></a></li>
     1842                        <li class="indline1"><tt>expectation-extension</tt>&nbsp;&nbsp;<a class="iref" href="#rfc.iref.g.12"><b>10.2</b></a></li>
     1843                        <li class="indline1"><tt>extension-code</tt>&nbsp;&nbsp;<a class="iref" href="#rfc.iref.g.5"><b>5</b></a></li>
     1844                        <li class="indline1"><tt>extension-method</tt>&nbsp;&nbsp;<a class="iref" href="#rfc.iref.g.2"><b>3</b></a></li>
     1845                        <li class="indline1"><tt>From</tt>&nbsp;&nbsp;<a class="iref" href="#rfc.iref.g.14"><b>10.3</b></a></li>
     1846                        <li class="indline1"><tt>Location</tt>&nbsp;&nbsp;<a class="iref" href="#rfc.iref.g.15"><b>10.4</b></a></li>
     1847                        <li class="indline1"><tt>Max-Forwards</tt>&nbsp;&nbsp;<a class="iref" href="#rfc.iref.g.16"><b>10.5</b></a></li>
     1848                        <li class="indline1"><tt>Method</tt>&nbsp;&nbsp;<a class="iref" href="#rfc.iref.g.1"><b>3</b></a></li>
     1849                        <li class="indline1"><tt>Reason-Phrase</tt>&nbsp;&nbsp;<a class="iref" href="#rfc.iref.g.6"><b>5</b></a></li>
     1850                        <li class="indline1"><tt>Referer</tt>&nbsp;&nbsp;<a class="iref" href="#rfc.iref.g.17"><b>10.6</b></a></li>
     1851                        <li class="indline1"><tt>request-header</tt>&nbsp;&nbsp;<a class="iref" href="#rfc.iref.g.3"><b>4</b></a></li>
     1852                        <li class="indline1"><tt>response-header</tt>&nbsp;&nbsp;<a class="iref" href="#rfc.iref.g.7"><b>6</b></a></li>
     1853                        <li class="indline1"><tt>Retry-After</tt>&nbsp;&nbsp;<a class="iref" href="#rfc.iref.g.18"><b>10.7</b></a></li>
     1854                        <li class="indline1"><tt>Server</tt>&nbsp;&nbsp;<a class="iref" href="#rfc.iref.g.19"><b>10.8</b></a></li>
     1855                        <li class="indline1"><tt>Status-Code</tt>&nbsp;&nbsp;<a class="iref" href="#rfc.iref.g.4"><b>5</b></a></li>
     1856                        <li class="indline1"><tt>User-Agent</tt>&nbsp;&nbsp;<a class="iref" href="#rfc.iref.g.20"><b>10.9</b></a></li>
    18471857                     </ul>
    18481858                  </li>
    … …  
    18501860            </li>
    18511861            <li class="indline0"><a id="rfc.index.H" href="#rfc.index.H"><b>H</b></a><ul class="ind">
    1852                   <li class="indline1">HEAD method&nbsp;&nbsp;<a class="iref" href="#rfc.xref.HEAD.1">2</a>, <a class="iref" href="#rfc.iref.h.1"><b>7.4</b></a></li>
     1862                  <li class="indline1">HEAD method&nbsp;&nbsp;<a class="iref" href="#rfc.xref.HEAD.1">3</a>, <a class="iref" href="#rfc.iref.h.1"><b>8.4</b></a></li>
    18531863                  <li class="indline1">Headers&nbsp;&nbsp;
    18541864                     <ul class="ind">
    1855                         <li class="indline1">Allow&nbsp;&nbsp;<a class="iref" href="#rfc.xref.header.allow.1">2</a>, <a class="iref" href="#rfc.iref.h.2"><b>9.1</b></a></li>
    1856                         <li class="indline1">Expect&nbsp;&nbsp;<a class="iref" href="#rfc.xref.header.expect.1">3</a>, <a class="iref" href="#rfc.xref.header.expect.2">8.4.18</a>, <a class="iref" href="#rfc.iref.h.3"><b>9.2</b></a></li>
    1857                         <li class="indline1">From&nbsp;&nbsp;<a class="iref" href="#rfc.xref.header.from.1">3</a>, <a class="iref" href="#rfc.iref.h.4"><b>9.3</b></a></li>
    1858                         <li class="indline1">Location&nbsp;&nbsp;<a class="iref" href="#rfc.xref.header.location.1">5</a>, <a class="iref" href="#rfc.xref.header.location.2">7.5</a>, <a class="iref" href="#rfc.iref.h.5"><b>9.4</b></a>, <a class="iref" href="#rfc.xref.header.location.3">A.2</a></li>
    1859                         <li class="indline1">Max-Forwards&nbsp;&nbsp;<a class="iref" href="#rfc.xref.header.max-forwards.1">3</a>, <a class="iref" href="#rfc.xref.header.max-forwards.2">7.8</a>, <a class="iref" href="#rfc.iref.h.6"><b>9.5</b></a></li>
    1860                         <li class="indline1">Referer&nbsp;&nbsp;<a class="iref" href="#rfc.xref.header.referer.1">3</a>, <a class="iref" href="#rfc.iref.h.7"><b>9.6</b></a></li>
    1861                         <li class="indline1">Retry-After&nbsp;&nbsp;<a class="iref" href="#rfc.xref.header.retry-after.1">5</a>, <a class="iref" href="#rfc.iref.h.8"><b>9.7</b></a></li>
    1862                         <li class="indline1">Server&nbsp;&nbsp;<a class="iref" href="#rfc.xref.header.server.1">5</a>, <a class="iref" href="#rfc.iref.h.9"><b>9.8</b></a>, <a class="iref" href="#rfc.xref.header.server.2">11.1</a>, <a class="iref" href="#rfc.xref.header.server.3">A.2</a></li>
    1863                         <li class="indline1">User-Agent&nbsp;&nbsp;<a class="iref" href="#rfc.xref.header.user-agent.1">3</a>, <a class="iref" href="#rfc.iref.h.10"><b>9.9</b></a>, <a class="iref" href="#rfc.xref.header.user-agent.2">11.1</a></li>
     1865                        <li class="indline1">Allow&nbsp;&nbsp;<a class="iref" href="#rfc.xref.header.allow.1">3</a>, <a class="iref" href="#rfc.iref.h.2"><b>10.1</b></a></li>
     1866                        <li class="indline1">Expect&nbsp;&nbsp;<a class="iref" href="#rfc.xref.header.expect.1">4</a>, <a class="iref" href="#rfc.xref.header.expect.2">9.4.18</a>, <a class="iref" href="#rfc.iref.h.3"><b>10.2</b></a></li>
     1867                        <li class="indline1">From&nbsp;&nbsp;<a class="iref" href="#rfc.xref.header.from.1">4</a>, <a class="iref" href="#rfc.iref.h.4"><b>10.3</b></a></li>
     1868                        <li class="indline1">Location&nbsp;&nbsp;<a class="iref" href="#rfc.xref.header.location.1">6</a>, <a class="iref" href="#rfc.xref.header.location.2">8.5</a>, <a class="iref" href="#rfc.iref.h.5"><b>10.4</b></a>, <a class="iref" href="#rfc.xref.header.location.3">A.2</a></li>
     1869                        <li class="indline1">Max-Forwards&nbsp;&nbsp;<a class="iref" href="#rfc.xref.header.max-forwards.1">4</a>, <a class="iref" href="#rfc.xref.header.max-forwards.2">8.8</a>, <a class="iref" href="#rfc.iref.h.6"><b>10.5</b></a></li>
     1870                        <li class="indline1">Referer&nbsp;&nbsp;<a class="iref" href="#rfc.xref.header.referer.1">4</a>, <a class="iref" href="#rfc.iref.h.7"><b>10.6</b></a></li>
     1871                        <li class="indline1">Retry-After&nbsp;&nbsp;<a class="iref" href="#rfc.xref.header.retry-after.1">6</a>, <a class="iref" href="#rfc.iref.h.8"><b>10.7</b></a></li>
     1872                        <li class="indline1">Server&nbsp;&nbsp;<a class="iref" href="#rfc.xref.header.server.1">6</a>, <a class="iref" href="#rfc.iref.h.9"><b>10.8</b></a>, <a class="iref" href="#rfc.xref.header.server.2">12.1</a>, <a class="iref" href="#rfc.xref.header.server.3">A.2</a></li>
     1873                        <li class="indline1">User-Agent&nbsp;&nbsp;<a class="iref" href="#rfc.xref.header.user-agent.1">4</a>, <a class="iref" href="#rfc.iref.h.10"><b>10.9</b></a>, <a class="iref" href="#rfc.xref.header.user-agent.2">12.1</a></li>
    18641874                     </ul>
    18651875                  </li>
    … …  
    18681878            <li class="indline0"><a id="rfc.index.L" href="#rfc.index.L"><b>L</b></a><ul class="ind">
    18691879                  <li class="indline1">LINK method&nbsp;&nbsp;<a class="iref" href="#rfc.iref.l.2"><b>A.1</b></a></li>
    1870                   <li class="indline1">Location header&nbsp;&nbsp;<a class="iref" href="#rfc.xref.header.location.1">5</a>, <a class="iref" href="#rfc.xref.header.location.2">7.5</a>, <a class="iref" href="#rfc.iref.l.1"><b>9.4</b></a>, <a class="iref" href="#rfc.xref.header.location.3">A.2</a></li>
    1871                   <li class="indline1"><em>Luo1998</em>&nbsp;&nbsp;<a class="iref" href="#rfc.xref.Luo1998.1">7.9</a>, <a class="iref" href="#Luo1998"><b>13.2</b></a></li>
     1880                  <li class="indline1">Location header&nbsp;&nbsp;<a class="iref" href="#rfc.xref.header.location.1">6</a>, <a class="iref" href="#rfc.xref.header.location.2">8.5</a>, <a class="iref" href="#rfc.iref.l.1"><b>10.4</b></a>, <a class="iref" href="#rfc.xref.header.location.3">A.2</a></li>
     1881                  <li class="indline1"><em>Luo1998</em>&nbsp;&nbsp;<a class="iref" href="#rfc.xref.Luo1998.1">8.9</a>, <a class="iref" href="#Luo1998"><b>14.2</b></a></li>
    18721882               </ul>
    18731883            </li>
    18741884            <li class="indline0"><a id="rfc.index.M" href="#rfc.index.M"><b>M</b></a><ul class="ind">
    1875                   <li class="indline1">Max-Forwards header&nbsp;&nbsp;<a class="iref" href="#rfc.xref.header.max-forwards.1">3</a>, <a class="iref" href="#rfc.xref.header.max-forwards.2">7.8</a>, <a class="iref" href="#rfc.iref.m.9"><b>9.5</b></a></li>
     1885                  <li class="indline1">Max-Forwards header&nbsp;&nbsp;<a class="iref" href="#rfc.xref.header.max-forwards.1">4</a>, <a class="iref" href="#rfc.xref.header.max-forwards.2">8.8</a>, <a class="iref" href="#rfc.iref.m.9"><b>10.5</b></a></li>
    18761886                  <li class="indline1">Methods&nbsp;&nbsp;
    18771887                     <ul class="ind">
    1878                         <li class="indline1">CONNECT&nbsp;&nbsp;<a class="iref" href="#rfc.xref.CONNECT.1">2</a>, <a class="iref" href="#rfc.iref.m.8"><b>7.9</b></a></li>
    1879                         <li class="indline1">DELETE&nbsp;&nbsp;<a class="iref" href="#rfc.xref.DELETE.1">2</a>, <a class="iref" href="#rfc.iref.m.6"><b>7.7</b></a></li>
    1880                         <li class="indline1">GET&nbsp;&nbsp;<a class="iref" href="#rfc.xref.GET.1">2</a>, <a class="iref" href="#rfc.iref.m.2"><b>7.3</b></a></li>
    1881                         <li class="indline1">HEAD&nbsp;&nbsp;<a class="iref" href="#rfc.xref.HEAD.1">2</a>, <a class="iref" href="#rfc.iref.m.3"><b>7.4</b></a></li>
     1888                        <li class="indline1">CONNECT&nbsp;&nbsp;<a class="iref" href="#rfc.xref.CONNECT.1">3</a>, <a class="iref" href="#rfc.iref.m.8"><b>8.9</b></a></li>
     1889                        <li class="indline1">DELETE&nbsp;&nbsp;<a class="iref" href="#rfc.xref.DELETE.1">3</a>, <a class="iref" href="#rfc.iref.m.6"><b>8.7</b></a></li>
     1890                        <li class="indline1">GET&nbsp;&nbsp;<a class="iref" href="#rfc.xref.GET.1">3</a>, <a class="iref" href="#rfc.iref.m.2"><b>8.3</b></a></li>
     1891                        <li class="indline1">HEAD&nbsp;&nbsp;<a class="iref" href="#rfc.xref.HEAD.1">3</a>, <a class="iref" href="#rfc.iref.m.3"><b>8.4</b></a></li>
    18821892                        <li class="indline1">LINK&nbsp;&nbsp;<a class="iref" href="#rfc.iref.m.11"><b>A.1</b></a></li>
    1883                         <li class="indline1">OPTIONS&nbsp;&nbsp;<a class="iref" href="#rfc.xref.OPTIONS.1">2</a>, <a class="iref" href="#rfc.iref.m.1"><b>7.2</b></a>, <a class="iref" href="#rfc.xref.OPTIONS.2">9.5</a></li>
     1893                        <li class="indline1">OPTIONS&nbsp;&nbsp;<a class="iref" href="#rfc.xref.OPTIONS.1">3</a>, <a class="iref" href="#rfc.iref.m.1"><b>8.2</b></a>, <a class="iref" href="#rfc.xref.OPTIONS.2">10.5</a></li>
    18841894                        <li class="indline1">PATCH&nbsp;&nbsp;<a class="iref" href="#rfc.iref.m.10"><b>A.1</b></a></li>
    1885                         <li class="indline1">POST&nbsp;&nbsp;<a class="iref" href="#rfc.xref.POST.1">2</a>, <a class="iref" href="#rfc.iref.m.4"><b>7.5</b></a>, <a class="iref" href="#rfc.xref.POST.2">A.2</a></li>
    1886                         <li class="indline1">PUT&nbsp;&nbsp;<a class="iref" href="#rfc.xref.PUT.1">2</a>, <a class="iref" href="#rfc.iref.m.5"><b>7.6</b></a></li>
    1887                         <li class="indline1">TRACE&nbsp;&nbsp;<a class="iref" href="#rfc.xref.TRACE.1">2</a>, <a class="iref" href="#rfc.iref.m.7"><b>7.8</b></a>, <a class="iref" href="#rfc.xref.TRACE.2">9.5</a></li>
     1895                        <li class="indline1">POST&nbsp;&nbsp;<a class="iref" href="#rfc.xref.POST.1">3</a>, <a class="iref" href="#rfc.iref.m.4"><b>8.5</b></a>, <a class="iref" href="#rfc.xref.POST.2">A.2</a></li>
     1896                        <li class="indline1">PUT&nbsp;&nbsp;<a class="iref" href="#rfc.xref.PUT.1">3</a>, <a class="iref" href="#rfc.iref.m.5"><b>8.6</b></a></li>
     1897                        <li class="indline1">TRACE&nbsp;&nbsp;<a class="iref" href="#rfc.xref.TRACE.1">3</a>, <a class="iref" href="#rfc.iref.m.7"><b>8.8</b></a>, <a class="iref" href="#rfc.xref.TRACE.2">10.5</a></li>
    18881898                        <li class="indline1">UNLINK&nbsp;&nbsp;<a class="iref" href="#rfc.iref.m.12"><b>A.1</b></a></li>
    18891899                     </ul>
    … …  
    18921902            </li>
    18931903            <li class="indline0"><a id="rfc.index.O" href="#rfc.index.O"><b>O</b></a><ul class="ind">
    1894                   <li class="indline1">OPTIONS method&nbsp;&nbsp;<a class="iref" href="#rfc.xref.OPTIONS.1">2</a>, <a class="iref" href="#rfc.iref.o.1"><b>7.2</b></a>, <a class="iref" href="#rfc.xref.OPTIONS.2">9.5</a></li>
     1904                  <li class="indline1">OPTIONS method&nbsp;&nbsp;<a class="iref" href="#rfc.xref.OPTIONS.1">3</a>, <a class="iref" href="#rfc.iref.o.1"><b>8.2</b></a>, <a class="iref" href="#rfc.xref.OPTIONS.2">10.5</a></li>
    18951905               </ul>
    18961906            </li>
    18971907            <li class="indline0"><a id="rfc.index.P" href="#rfc.index.P"><b>P</b></a><ul class="ind">
    1898                   <li class="indline1"><em>Part1</em>&nbsp;&nbsp;<a class="iref" href="#rfc.xref.Part1.1">1</a>, <a class="iref" href="#rfc.xref.Part1.2">3</a>, <a class="iref" href="#rfc.xref.Part1.3">3</a>, <a class="iref" href="#rfc.xref.Part1.4">6</a>, <a class="iref" href="#rfc.xref.Part1.5">7.8</a>, <a class="iref" href="#rfc.xref.Part1.6">8.1.1</a>, <a class="iref" href="#rfc.xref.Part1.7">8.5.6</a>, <a class="iref" href="#rfc.xref.Part1.8">9.2</a>, <a class="iref" href="#rfc.xref.Part1.9">9.8</a>, <a class="iref" href="#rfc.xref.Part1.10">9.8</a>, <a class="iref" href="#rfc.xref.Part1.11">9.9</a>, <a class="iref" href="#Part1"><b>13.1</b></a>, <a class="iref" href="#rfc.xref.Part1.12">A.2</a><ul class="ind">
    1899                         <li class="indline1"><em>Section 3.1</em>&nbsp;&nbsp;<a class="iref" href="#rfc.xref.Part1.7">8.5.6</a></li>
    1900                         <li class="indline1"><em>Section 3.5</em>&nbsp;&nbsp;<a class="iref" href="#rfc.xref.Part1.9">9.8</a>, <a class="iref" href="#rfc.xref.Part1.11">9.9</a></li>
    1901                         <li class="indline1"><em>Section 4.3</em>&nbsp;&nbsp;<a class="iref" href="#rfc.xref.Part1.4">6</a></li>
    1902                         <li class="indline1"><em>Section 7.2.3</em>&nbsp;&nbsp;<a class="iref" href="#rfc.xref.Part1.6">8.1.1</a>, <a class="iref" href="#rfc.xref.Part1.8">9.2</a></li>
    1903                         <li class="indline1"><em>Section 8.4</em>&nbsp;&nbsp;<a class="iref" href="#rfc.xref.Part1.2">3</a></li>
    1904                         <li class="indline1"><em>Section 8.8</em>&nbsp;&nbsp;<a class="iref" href="#rfc.xref.Part1.3">3</a></li>
    1905                         <li class="indline1"><em>Section 8.9</em>&nbsp;&nbsp;<a class="iref" href="#rfc.xref.Part1.5">7.8</a>, <a class="iref" href="#rfc.xref.Part1.10">9.8</a>, <a class="iref" href="#rfc.xref.Part1.12">A.2</a></li>
     1908                  <li class="indline1"><em>Part1</em>&nbsp;&nbsp;<a class="iref" href="#rfc.xref.Part1.1">1</a>, <a class="iref" href="#rfc.xref.Part1.2">2</a>, <a class="iref" href="#rfc.xref.Part1.3">2</a>, <a class="iref" href="#rfc.xref.Part1.4">2</a>, <a class="iref" href="#rfc.xref.Part1.5">2</a>, <a class="iref" href="#rfc.xref.Part1.6">2</a>, <a class="iref" href="#rfc.xref.Part1.7">2</a>, <a class="iref" href="#rfc.xref.Part1.8">4</a>, <a class="iref" href="#rfc.xref.Part1.9">4</a>, <a class="iref" href="#rfc.xref.Part1.10">7</a>, <a class="iref" href="#rfc.xref.Part1.11">8.8</a>, <a class="iref" href="#rfc.xref.Part1.12">9.1.1</a>, <a class="iref" href="#rfc.xref.Part1.13">9.5.6</a>, <a class="iref" href="#rfc.xref.Part1.14">10.2</a>, <a class="iref" href="#rfc.xref.Part1.15">10.8</a>, <a class="iref" href="#rfc.xref.Part1.16">10.8</a>, <a class="iref" href="#rfc.xref.Part1.17">10.9</a>, <a class="iref" href="#Part1"><b>14.1</b></a>, <a class="iref" href="#rfc.xref.Part1.18">A.2</a><ul class="ind">
     1909                        <li class="indline1"><em>Section 2.1</em>&nbsp;&nbsp;<a class="iref" href="#rfc.xref.Part1.2">2</a></li>
     1910                        <li class="indline1"><em>Section 2.2</em>&nbsp;&nbsp;<a class="iref" href="#rfc.xref.Part1.3">2</a>, <a class="iref" href="#rfc.xref.Part1.4">2</a>, <a class="iref" href="#rfc.xref.Part1.5">2</a>, <a class="iref" href="#rfc.xref.Part1.6">2</a>, <a class="iref" href="#rfc.xref.Part1.7">2</a></li>
     1911                        <li class="indline1"><em>Section 3.1</em>&nbsp;&nbsp;<a class="iref" href="#rfc.xref.Part1.13">9.5.6</a></li>
     1912                        <li class="indline1"><em>Section 3.5</em>&nbsp;&nbsp;<a class="iref" href="#rfc.xref.Part1.15">10.8</a>, <a class="iref" href="#rfc.xref.Part1.17">10.9</a></li>
     1913                        <li class="indline1"><em>Section 4.3</em>&nbsp;&nbsp;<a class="iref" href="#rfc.xref.Part1.10">7</a></li>
     1914                        <li class="indline1"><em>Section 7.2.3</em>&nbsp;&nbsp;<a class="iref" href="#rfc.xref.Part1.12">9.1.1</a>, <a class="iref" href="#rfc.xref.Part1.14">10.2</a></li>
     1915                        <li class="indline1"><em>Section 8.4</em>&nbsp;&nbsp;<a class="iref" href="#rfc.xref.Part1.8">4</a></li>
     1916                        <li class="indline1"><em>Section 8.8</em>&nbsp;&nbsp;<a class="iref" href="#rfc.xref.Part1.9">4</a></li>
     1917                        <li class="indline1"><em>Section 8.9</em>&nbsp;&nbsp;<a class="iref" href="#rfc.xref.Part1.11">8.8</a>, <a class="iref" href="#rfc.xref.Part1.16">10.8</a>, <a class="iref" href="#rfc.xref.Part1.18">A.2</a></li>
    19061918                     </ul>
    19071919                  </li>
    1908                   <li class="indline1"><em>Part3</em>&nbsp;&nbsp;<a class="iref" href="#rfc.xref.Part3.1">3</a>, <a class="iref" href="#rfc.xref.Part3.2">3</a>, <a class="iref" href="#rfc.xref.Part3.3">3</a>, <a class="iref" href="#rfc.xref.Part3.4">3</a>, <a class="iref" href="#rfc.xref.Part3.5">6</a>, <a class="iref" href="#rfc.xref.Part3.6">8.3.1</a>, <a class="iref" href="#rfc.xref.Part3.7">9.4</a>, <a class="iref" href="#Part3"><b>13.1</b></a><ul class="ind">
    1909                         <li class="indline1"><em>Section 4</em>&nbsp;&nbsp;<a class="iref" href="#rfc.xref.Part3.6">8.3.1</a></li>
    1910                         <li class="indline1"><em>Section 5.1</em>&nbsp;&nbsp;<a class="iref" href="#rfc.xref.Part3.1">3</a></li>
    1911                         <li class="indline1"><em>Section 5.2</em>&nbsp;&nbsp;<a class="iref" href="#rfc.xref.Part3.2">3</a></li>
    1912                         <li class="indline1"><em>Section 5.3</em>&nbsp;&nbsp;<a class="iref" href="#rfc.xref.Part3.3">3</a></li>
    1913                         <li class="indline1"><em>Section 5.4</em>&nbsp;&nbsp;<a class="iref" href="#rfc.xref.Part3.4">3</a></li>
    1914                         <li class="indline1"><em>Section 5.7</em>&nbsp;&nbsp;<a class="iref" href="#rfc.xref.Part3.7">9.4</a></li>
     1920                  <li class="indline1"><em>Part3</em>&nbsp;&nbsp;<a class="iref" href="#rfc.xref.Part3.1">4</a>, <a class="iref" href="#rfc.xref.Part3.2">4</a>, <a class="iref" href="#rfc.xref.Part3.3">4</a>, <a class="iref" href="#rfc.xref.Part3.4">4</a>, <a class="iref" href="#rfc.xref.Part3.5">7</a>, <a class="iref" href="#rfc.xref.Part3.6">9.3.1</a>, <a class="iref" href="#rfc.xref.Part3.7">10.4</a>, <a class="iref" href="#Part3"><b>14.1</b></a><ul class="ind">
     1921                        <li class="indline1"><em>Section 5</em>&nbsp;&nbsp;<a class="iref" href="#rfc.xref.Part3.6">9.3.1</a></li>
     1922                        <li class="indline1"><em>Section 6.1</em>&nbsp;&nbsp;<a class="iref" href="#rfc.xref.Part3.1">4</a></li>
     1923                        <li class="indline1"><em>Section 6.2</em>&nbsp;&nbsp;<a class="iref" href="#rfc.xref.Part3.2">4</a></li>
     1924                        <li class="indline1"><em>Section 6.3</em>&nbsp;&nbsp;<a class="iref" href="#rfc.xref.Part3.3">4</a></li>
     1925                        <li class="indline1"><em>Section 6.4</em>&nbsp;&nbsp;<a class="iref" href="#rfc.xref.Part3.4">4</a></li>
     1926                        <li class="indline1"><em>Section 6.7</em>&nbsp;&nbsp;<a class="iref" href="#rfc.xref.Part3.7">10.4</a></li>
    19151927                     </ul>
    19161928                  </li>
    1917                   <li class="indline1"><em>Part4</em>&nbsp;&nbsp;<a class="iref" href="#rfc.xref.Part4.1">3</a>, <a class="iref" href="#rfc.xref.Part4.2">3</a>, <a class="iref" href="#rfc.xref.Part4.3">3</a>, <a class="iref" href="#rfc.xref.Part4.4">3</a>, <a class="iref" href="#rfc.xref.Part4.5">5</a>, <a class="iref" href="#rfc.xref.Part4.6">8.2.2</a>, <a class="iref" href="#rfc.xref.Part4.7">8.3.5</a>, <a class="iref" href="#rfc.xref.Part4.8">8.4.13</a>, <a class="iref" href="#Part4"><b>13.1</b></a>, <a class="iref" href="#rfc.xref.Part4.9">B.2</a><ul class="ind">
    1918                         <li class="indline1"><em>Section 6.1</em>&nbsp;&nbsp;<a class="iref" href="#rfc.xref.Part4.5">5</a>, <a class="iref" href="#rfc.xref.Part4.6">8.2.2</a></li>
    1919                         <li class="indline1"><em>Section 6.2</em>&nbsp;&nbsp;<a class="iref" href="#rfc.xref.Part4.1">3</a></li>
    1920                         <li class="indline1"><em>Section 6.3</em>&nbsp;&nbsp;<a class="iref" href="#rfc.xref.Part4.2">3</a></li>
    1921                         <li class="indline1"><em>Section 6.4</em>&nbsp;&nbsp;<a class="iref" href="#rfc.xref.Part4.3">3</a></li>
    1922                         <li class="indline1"><em>Section 6.5</em>&nbsp;&nbsp;<a class="iref" href="#rfc.xref.Part4.4">3</a></li>
     1929                  <li class="indline1"><em>Part4</em>&nbsp;&nbsp;<a class="iref" href="#rfc.xref.Part4.1">4</a>, <a class="iref" href="#rfc.xref.Part4.2">4</a>, <a class="iref" href="#rfc.xref.Part4.3">4</a>, <a class="iref" href="#rfc.xref.Part4.4">4</a>, <a class="iref" href="#rfc.xref.Part4.5">6</a>, <a class="iref" href="#rfc.xref.Part4.6">9.2.2</a>, <a class="iref" href="#rfc.xref.Part4.7">9.3.5</a>, <a class="iref" href="#rfc.xref.Part4.8">9.4.13</a>, <a class="iref" href="#Part4"><b>14.1</b></a>, <a class="iref" href="#rfc.xref.Part4.9">B.2</a><ul class="ind">
     1930                        <li class="indline1"><em>Section 7.1</em>&nbsp;&nbsp;<a class="iref" href="#rfc.xref.Part4.5">6</a>, <a class="iref" href="#rfc.xref.Part4.6">9.2.2</a></li>
     1931                        <li class="indline1"><em>Section 7.2</em>&nbsp;&nbsp;<a class="iref" href="#rfc.xref.Part4.1">4</a></li>
     1932                        <li class="indline1"><em>Section 7.3</em>&nbsp;&nbsp;<a class="iref" href="#rfc.xref.Part4.2">4</a></li>
     1933                        <li class="indline1"><em>Section 7.4</em>&nbsp;&nbsp;<a class="iref" href="#rfc.xref.Part4.3">4</a></li>
     1934                        <li class="indline1"><em>Section 7.5</em>&nbsp;&nbsp;<a class="iref" href="#rfc.xref.Part4.4">4</a></li>
    19231935                     </ul>
    19241936                  </li>
    1925                   <li class="indline1"><em>Part5</em>&nbsp;&nbsp;<a class="iref" href="#rfc.xref.Part5.1">3</a>, <a class="iref" href="#rfc.xref.Part5.2">3</a>, <a class="iref" href="#rfc.xref.Part5.3">5</a>, <a class="iref" href="#rfc.xref.Part5.4">7.3</a>, <a class="iref" href="#rfc.xref.Part5.5">8.1.2</a>, <a class="iref" href="#rfc.xref.Part5.6">8.2.7</a>, <a class="iref" href="#rfc.xref.Part5.7">8.4.17</a>, <a class="iref" href="#Part5"><b>13.1</b></a><ul class="ind">
    1926                         <li class="indline1"><em>Section 5.1</em>&nbsp;&nbsp;<a class="iref" href="#rfc.xref.Part5.3">5</a></li>
    1927                         <li class="indline1"><em>Section 5.3</em>&nbsp;&nbsp;<a class="iref" href="#rfc.xref.Part5.1">3</a></li>
    1928                         <li class="indline1"><em>Section 5.4</em>&nbsp;&nbsp;<a class="iref" href="#rfc.xref.Part5.2">3</a>, <a class="iref" href="#rfc.xref.Part5.4">7.3</a>, <a class="iref" href="#rfc.xref.Part5.5">8.1.2</a>, <a class="iref" href="#rfc.xref.Part5.7">8.4.17</a></li>
     1937                  <li class="indline1"><em>Part5</em>&nbsp;&nbsp;<a class="iref" href="#rfc.xref.Part5.1">4</a>, <a class="iref" href="#rfc.xref.Part5.2">4</a>, <a class="iref" href="#rfc.xref.Part5.3">6</a>, <a class="iref" href="#rfc.xref.Part5.4">8.3</a>, <a class="iref" href="#rfc.xref.Part5.5">9.1.2</a>, <a class="iref" href="#rfc.xref.Part5.6">9.2.7</a>, <a class="iref" href="#rfc.xref.Part5.7">9.4.17</a>, <a class="iref" href="#Part5"><b>14.1</b></a><ul class="ind">
     1938                        <li class="indline1"><em>Section 6.1</em>&nbsp;&nbsp;<a class="iref" href="#rfc.xref.Part5.3">6</a></li>
     1939                        <li class="indline1"><em>Section 6.3</em>&nbsp;&nbsp;<a class="iref" href="#rfc.xref.Part5.1">4</a></li>
     1940                        <li class="indline1"><em>Section 6.4</em>&nbsp;&nbsp;<a class="iref" href="#rfc.xref.Part5.2">4</a>, <a class="iref" href="#rfc.xref.Part5.4">8.3</a>, <a class="iref" href="#rfc.xref.Part5.5">9.1.2</a>, <a class="iref" href="#rfc.xref.Part5.7">9.4.17</a></li>
    19291941                     </ul>
    19301942                  </li>
    1931                   <li class="indline1"><em>Part6</em>&nbsp;&nbsp;<a class="iref" href="#rfc.xref.Part6.1">5</a>, <a class="iref" href="#rfc.xref.Part6.2">5</a>, <a class="iref" href="#rfc.xref.Part6.3">7.3</a>, <a class="iref" href="#Part6"><b>13.1</b></a><ul class="ind">
    1932                         <li class="indline1"><em>Section 15.1</em>&nbsp;&nbsp;<a class="iref" href="#rfc.xref.Part6.1">5</a></li>
    1933                         <li class="indline1"><em>Section 15.5</em>&nbsp;&nbsp;<a class="iref" href="#rfc.xref.Part6.2">5</a></li>
     1943                  <li class="indline1"><em>Part6</em>&nbsp;&nbsp;<a class="iref" href="#rfc.xref.Part6.1">6</a>, <a class="iref" href="#rfc.xref.Part6.2">6</a>, <a class="iref" href="#rfc.xref.Part6.3">8.3</a>, <a class="iref" href="#Part6"><b>14.1</b></a><ul class="ind">
     1944                        <li class="indline1"><em>Section 16.1</em>&nbsp;&nbsp;<a class="iref" href="#rfc.xref.Part6.1">6</a></li>
     1945                        <li class="indline1"><em>Section 16.5</em>&nbsp;&nbsp;<a class="iref" href="#rfc.xref.Part6.2">6</a></li>
    19341946                     </ul>
    19351947                  </li>
    1936                   <li class="indline1"><em>Part7</em>&nbsp;&nbsp;<a class="iref" href="#rfc.xref.Part7.1">3</a>, <a class="iref" href="#rfc.xref.Part7.2">3</a>, <a class="iref" href="#rfc.xref.Part7.3">5</a>, <a class="iref" href="#rfc.xref.Part7.4">5</a>, <a class="iref" href="#rfc.xref.Part7.5">8.4.2</a>, <a class="iref" href="#rfc.xref.Part7.6">8.4.8</a>, <a class="iref" href="#Part7"><b>13.1</b></a><ul class="ind">
    1937                         <li class="indline1"><em>Section 3.1</em>&nbsp;&nbsp;<a class="iref" href="#rfc.xref.Part7.1">3</a></li>
    1938                         <li class="indline1"><em>Section 3.2</em>&nbsp;&nbsp;<a class="iref" href="#rfc.xref.Part7.3">5</a></li>
    1939                         <li class="indline1"><em>Section 3.3</em>&nbsp;&nbsp;<a class="iref" href="#rfc.xref.Part7.2">3</a></li>
    1940                         <li class="indline1"><em>Section 3.4</em>&nbsp;&nbsp;<a class="iref" href="#rfc.xref.Part7.4">5</a></li>
     1948                  <li class="indline1"><em>Part7</em>&nbsp;&nbsp;<a class="iref" href="#rfc.xref.Part7.1">4</a>, <a class="iref" href="#rfc.xref.Part7.2">4</a>, <a class="iref" href="#rfc.xref.Part7.3">6</a>, <a class="iref" href="#rfc.xref.Part7.4">6</a>, <a class="iref" href="#rfc.xref.Part7.5">9.4.2</a>, <a class="iref" href="#rfc.xref.Part7.6">9.4.8</a>, <a class="iref" href="#Part7"><b>14.1</b></a><ul class="ind">
     1949                        <li class="indline1"><em>Section 4.1</em>&nbsp;&nbsp;<a class="iref" href="#rfc.xref.Part7.1">4</a></li>
     1950                        <li class="indline1"><em>Section 4.2</em>&nbsp;&nbsp;<a class="iref" href="#rfc.xref.Part7.3">6</a></li>
     1951                        <li class="indline1"><em>Section 4.3</em>&nbsp;&nbsp;<a class="iref" href="#rfc.xref.Part7.2">4</a></li>
     1952                        <li class="indline1"><em>Section 4.4</em>&nbsp;&nbsp;<a class="iref" href="#rfc.xref.Part7.4">6</a></li>
    19411953                     </ul>
    19421954                  </li>
    19431955                  <li class="indline1">PATCH method&nbsp;&nbsp;<a class="iref" href="#rfc.iref.p.3"><b>A.1</b></a></li>
    1944                   <li class="indline1">POST method&nbsp;&nbsp;<a class="iref" href="#rfc.xref.POST.1">2</a>, <a class="iref" href="#rfc.iref.p.1"><b>7.5</b></a>, <a class="iref" href="#rfc.xref.POST.2">A.2</a></li>
    1945                   <li class="indline1">PUT method&nbsp;&nbsp;<a class="iref" href="#rfc.xref.PUT.1">2</a>, <a class="iref" href="#rfc.iref.p.2"><b>7.6</b></a></li>
     1956                  <li class="indline1">POST method&nbsp;&nbsp;<a class="iref" href="#rfc.xref.POST.1">3</a>, <a class="iref" href="#rfc.iref.p.1"><b>8.5</b></a>, <a class="iref" href="#rfc.xref.POST.2">A.2</a></li>
     1957                  <li class="indline1">PUT method&nbsp;&nbsp;<a class="iref" href="#rfc.xref.PUT.1">3</a>, <a class="iref" href="#rfc.iref.p.2"><b>8.6</b></a></li>
    19461958               </ul>
    19471959            </li>
    19481960            <li class="indline0"><a id="rfc.index.R" href="#rfc.index.R"><b>R</b></a><ul class="ind">
    1949                   <li class="indline1">Referer header&nbsp;&nbsp;<a class="iref" href="#rfc.xref.header.referer.1">3</a>, <a class="iref" href="#rfc.iref.r.1"><b>9.6</b></a></li>
    1950                   <li class="indline1">Retry-After header&nbsp;&nbsp;<a class="iref" href="#rfc.xref.header.retry-after.1">5</a>, <a class="iref" href="#rfc.iref.r.2"><b>9.7</b></a></li>
    1951                   <li class="indline1"><em>RFC1945</em>&nbsp;&nbsp;<a class="iref" href="#rfc.xref.RFC1945.1">8.3.3</a>, <a class="iref" href="#RFC1945"><b>13.2</b></a></li>
    1952                   <li class="indline1"><em>RFC2068</em>&nbsp;&nbsp;<a class="iref" href="#rfc.xref.RFC2068.1">8.3.3</a>, <a class="iref" href="#rfc.xref.RFC2068.2">8.3.6</a>, <a class="iref" href="#RFC2068"><b>13.2</b></a>, <a class="iref" href="#rfc.xref.RFC2068.3">A.1</a></li>
    1953                   <li class="indline1"><em>RFC2119</em>&nbsp;&nbsp;<a class="iref" href="#rfc.xref.RFC2119.1">1.1</a>, <a class="iref" href="#RFC2119"><b>13.1</b></a></li>
    1954                   <li class="indline1"><em>RFC2616</em>&nbsp;&nbsp;<a class="iref" href="#rfc.xref.RFC2616.1">1</a>, <a class="iref" href="#RFC2616"><b>13.2</b></a>, <a class="iref" href="#rfc.xref.RFC2616.2">B.1</a></li>
    1955                   <li class="indline1"><em>RFC2822</em>&nbsp;&nbsp;<a class="iref" href="#rfc.xref.RFC2822.1">9.3</a>, <a class="iref" href="#RFC2822"><b>13.2</b></a><ul class="ind">
    1956                         <li class="indline1"><em>Section 3.4</em>&nbsp;&nbsp;<a class="iref" href="#rfc.xref.RFC2822.1">9.3</a></li>
     1961                  <li class="indline1">Referer header&nbsp;&nbsp;<a class="iref" href="#rfc.xref.header.referer.1">4</a>, <a class="iref" href="#rfc.iref.r.1"><b>10.6</b></a></li>
     1962                  <li class="indline1">Retry-After header&nbsp;&nbsp;<a class="iref" href="#rfc.xref.header.retry-after.1">6</a>, <a class="iref" href="#rfc.iref.r.2"><b>10.7</b></a></li>
     1963                  <li class="indline1"><em>RFC1945</em>&nbsp;&nbsp;<a class="iref" href="#rfc.xref.RFC1945.1">9.3.3</a>, <a class="iref" href="#RFC1945"><b>14.2</b></a></li>
     1964                  <li class="indline1"><em>RFC2068</em>&nbsp;&nbsp;<a class="iref" href="#rfc.xref.RFC2068.1">9.3.3</a>, <a class="iref" href="#rfc.xref.RFC2068.2">9.3.6</a>, <a class="iref" href="#RFC2068"><b>14.2</b></a>, <a class="iref" href="#rfc.xref.RFC2068.3">A.1</a></li>