Ignore:
Timestamp:
05/11/08 14:50:10 (12 years ago)
Author:
julian.reschke@…
Message:

use "/" instead of "|" for alternatives (related to #36)

File:
1 edited

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

    r333 r334  
    717717      <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>
    718718      <div id="rfc.figure.u.9"></div><pre class="inline"><span id="rfc.iref.g.1"></span><span id="rfc.iref.g.2"></span>  <a href="#method" class="smpl">Method</a>         = %x4F.50.54.49.4F.4E.53   ; "OPTIONS", <a href="#OPTIONS" id="rfc.xref.OPTIONS.1" title="OPTIONS">Section&nbsp;8.2</a>
    719                  | %x47.45.54               ; "GET", <a href="#GET" id="rfc.xref.GET.1" title="GET">Section&nbsp;8.3</a>
    720                  | %x48.45.41.44            ; "HEAD", <a href="#HEAD" id="rfc.xref.HEAD.1" title="HEAD">Section&nbsp;8.4</a>
    721                  | %x50.4F.53.54            ; "POST", <a href="#POST" id="rfc.xref.POST.1" title="POST">Section&nbsp;8.5</a>
    722                  | %x50.55.54               ; "PUT", <a href="#PUT" id="rfc.xref.PUT.1" title="PUT">Section&nbsp;8.6</a>
    723                  | %x44.45.4C.45.54.45      ; "DELETE", <a href="#DELETE" id="rfc.xref.DELETE.1" title="DELETE">Section&nbsp;8.7</a>
    724                  | %x54.52.41.43.45         ; "TRACE", <a href="#TRACE" id="rfc.xref.TRACE.1" title="TRACE">Section&nbsp;8.8</a>
    725                  | %x43.4F.4E.4E.45.43.54   ; "CONNECT", <a href="#CONNECT" id="rfc.xref.CONNECT.1" title="CONNECT">Section&nbsp;8.9</a>
    726                  | <a href="#method" class="smpl">extension-method</a>
     719                 / %x47.45.54               ; "GET", <a href="#GET" id="rfc.xref.GET.1" title="GET">Section&nbsp;8.3</a>
     720                 / %x48.45.41.44            ; "HEAD", <a href="#HEAD" id="rfc.xref.HEAD.1" title="HEAD">Section&nbsp;8.4</a>
     721                 / %x50.4F.53.54            ; "POST", <a href="#POST" id="rfc.xref.POST.1" title="POST">Section&nbsp;8.5</a>
     722                 / %x50.55.54               ; "PUT", <a href="#PUT" id="rfc.xref.PUT.1" title="PUT">Section&nbsp;8.6</a>
     723                 / %x44.45.4C.45.54.45      ; "DELETE", <a href="#DELETE" id="rfc.xref.DELETE.1" title="DELETE">Section&nbsp;8.7</a>
     724                 / %x54.52.41.43.45         ; "TRACE", <a href="#TRACE" id="rfc.xref.TRACE.1" title="TRACE">Section&nbsp;8.8</a>
     725                 / %x43.4F.4E.4E.45.43.54   ; "CONNECT", <a href="#CONNECT" id="rfc.xref.CONNECT.1" title="CONNECT">Section&nbsp;8.9</a>
     726                 / <a href="#method" class="smpl">extension-method</a>
    727727  <a href="#method" class="smpl">extension-method</a> = <a href="#notation" class="smpl">token</a>
    728728</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
    … …  
    753753      </p>
    754754      <div id="rfc.figure.u.10"></div><pre class="inline"><span id="rfc.iref.g.3"></span>  <a href="#request.header.fields" class="smpl">request-header</a> = <a href="#abnf.dependencies" class="smpl">Accept</a>                   ; <a href="#Part3" id="rfc.xref.Part3.5"><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>
    755                  | <a href="#abnf.dependencies" class="smpl">Accept-Charset</a>           ; <a href="#Part3" id="rfc.xref.Part3.6"><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>
    756                  | <a href="#abnf.dependencies" class="smpl">Accept-Encoding</a>          ; <a href="#Part3" id="rfc.xref.Part3.7"><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>
    757                  | <a href="#abnf.dependencies" class="smpl">Accept-Language</a>          ; <a href="#Part3" id="rfc.xref.Part3.8"><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>
    758                  | <a href="#abnf.dependencies" class="smpl">Authorization</a>            ; <a href="#Part7" id="rfc.xref.Part7.5"><cite title="HTTP/1.1, part 7: Authentication">[Part7]</cite></a>, <a href="p7-auth.html#header.authorization" title="Authorization">Section 4.1</a>
    759                  | <a href="#header.expect" class="smpl">Expect</a>                   ; <a href="#header.expect" id="rfc.xref.header.expect.1" title="Expect">Section&nbsp;10.2</a>
    760                  | <a href="#header.from" class="smpl">From</a>                     ; <a href="#header.from" id="rfc.xref.header.from.1" title="From">Section&nbsp;10.3</a>
    761                  | <a href="#abnf.dependencies" class="smpl">Host</a>                     ; <a href="#Part1" id="rfc.xref.Part1.15"><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>
    762                  | <a href="#abnf.dependencies" class="smpl">If-Match</a>                 ; <a href="#Part4" id="rfc.xref.Part4.6"><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>
    763                  | <a href="#abnf.dependencies" class="smpl">If-Modified-Since</a>        ; <a href="#Part4" id="rfc.xref.Part4.7"><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>
    764                  | <a href="#abnf.dependencies" class="smpl">If-None-Match</a>            ; <a href="#Part4" id="rfc.xref.Part4.8"><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>
    765                  | <a href="#abnf.dependencies" class="smpl">If-Range</a>                 ; <a href="#Part5" id="rfc.xref.Part5.4"><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>
    766                  | <a href="#abnf.dependencies" class="smpl">If-Unmodified-Since</a>      ; <a href="#Part4" id="rfc.xref.Part4.9"><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>
    767                  | <a href="#header.max-forwards" class="smpl">Max-Forwards</a>             ; <a href="#header.max-forwards" id="rfc.xref.header.max-forwards.1" title="Max-Forwards">Section&nbsp;10.5</a>
    768                  | <a href="#abnf.dependencies" class="smpl">Proxy-Authorization</a>      ; <a href="#Part7" id="rfc.xref.Part7.6"><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>
    769                  | <a href="#abnf.dependencies" class="smpl">Range</a>                    ; <a href="#Part5" id="rfc.xref.Part5.5"><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>
    770                  | <a href="#header.referer" class="smpl">Referer</a>                  ; <a href="#header.referer" id="rfc.xref.header.referer.1" title="Referer">Section&nbsp;10.6</a>
    771                  | <a href="#abnf.dependencies" class="smpl">TE</a>                       ; <a href="#Part1" id="rfc.xref.Part1.16"><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>
    772                  | <a href="#header.user-agent" class="smpl">User-Agent</a>               ; <a href="#header.user-agent" id="rfc.xref.header.user-agent.1" title="User-Agent">Section&nbsp;10.9</a>
     755                 / <a href="#abnf.dependencies" class="smpl">Accept-Charset</a>           ; <a href="#Part3" id="rfc.xref.Part3.6"><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>
     756                 / <a href="#abnf.dependencies" class="smpl">Accept-Encoding</a>          ; <a href="#Part3" id="rfc.xref.Part3.7"><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>
     757                 / <a href="#abnf.dependencies" class="smpl">Accept-Language</a>          ; <a href="#Part3" id="rfc.xref.Part3.8"><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>
     758                 / <a href="#abnf.dependencies" class="smpl">Authorization</a>            ; <a href="#Part7" id="rfc.xref.Part7.5"><cite title="HTTP/1.1, part 7: Authentication">[Part7]</cite></a>, <a href="p7-auth.html#header.authorization" title="Authorization">Section 4.1</a>
     759                 / <a href="#header.expect" class="smpl">Expect</a>                   ; <a href="#header.expect" id="rfc.xref.header.expect.1" title="Expect">Section&nbsp;10.2</a>
     760                 / <a href="#header.from" class="smpl">From</a>                     ; <a href="#header.from" id="rfc.xref.header.from.1" title="From">Section&nbsp;10.3</a>
     761                 / <a href="#abnf.dependencies" class="smpl">Host</a>                     ; <a href="#Part1" id="rfc.xref.Part1.15"><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>
     762                 / <a href="#abnf.dependencies" class="smpl">If-Match</a>                 ; <a href="#Part4" id="rfc.xref.Part4.6"><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>
     763                 / <a href="#abnf.dependencies" class="smpl">If-Modified-Since</a>        ; <a href="#Part4" id="rfc.xref.Part4.7"><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>
     764                 / <a href="#abnf.dependencies" class="smpl">If-None-Match</a>            ; <a href="#Part4" id="rfc.xref.Part4.8"><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>
     765                 / <a href="#abnf.dependencies" class="smpl">If-Range</a>                 ; <a href="#Part5" id="rfc.xref.Part5.4"><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>
     766                 / <a href="#abnf.dependencies" class="smpl">If-Unmodified-Since</a>      ; <a href="#Part4" id="rfc.xref.Part4.9"><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>
     767                 / <a href="#header.max-forwards" class="smpl">Max-Forwards</a>             ; <a href="#header.max-forwards" id="rfc.xref.header.max-forwards.1" title="Max-Forwards">Section&nbsp;10.5</a>
     768                 / <a href="#abnf.dependencies" class="smpl">Proxy-Authorization</a>      ; <a href="#Part7" id="rfc.xref.Part7.6"><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>
     769                 / <a href="#abnf.dependencies" class="smpl">Range</a>                    ; <a href="#Part5" id="rfc.xref.Part5.5"><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>
     770                 / <a href="#header.referer" class="smpl">Referer</a>                  ; <a href="#header.referer" id="rfc.xref.header.referer.1" title="Referer">Section&nbsp;10.6</a>
     771                 / <a href="#abnf.dependencies" class="smpl">TE</a>                       ; <a href="#Part1" id="rfc.xref.Part1.16"><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>
     772                 / <a href="#header.user-agent" class="smpl">User-Agent</a>               ; <a href="#header.user-agent" id="rfc.xref.header.user-agent.1" title="User-Agent">Section&nbsp;10.9</a>
    773773</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
    774774         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.
    … …  
    785785      <div id="rfc.figure.u.11"></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>  <a href="#status.code.and.reason.phrase" class="smpl">Status-Code</a>    =
    786786         "100"  ; <a href="#status.100" id="rfc.xref.status.100.1" title="100 Continue">Section&nbsp;9.1.1</a>: Continue
    787        | "101"  ; <a href="#status.101" id="rfc.xref.status.101.1" title="101 Switching Protocols">Section&nbsp;9.1.2</a>: Switching Protocols
    788        | "200"  ; <a href="#status.200" id="rfc.xref.status.200.1" title="200 OK">Section&nbsp;9.2.1</a>: OK
    789        | "201"  ; <a href="#status.201" id="rfc.xref.status.201.1" title="201 Created">Section&nbsp;9.2.2</a>: Created
    790        | "202"  ; <a href="#status.202" id="rfc.xref.status.202.1" title="202 Accepted">Section&nbsp;9.2.3</a>: Accepted
    791        | "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
    792        | "204"  ; <a href="#status.204" id="rfc.xref.status.204.1" title="204 No Content">Section&nbsp;9.2.5</a>: No Content
    793        | "205"  ; <a href="#status.205" id="rfc.xref.status.205.1" title="205 Reset Content">Section&nbsp;9.2.6</a>: Reset Content
    794        | "206"  ; <a href="#status.206" id="rfc.xref.status.206.1" title="206 Partial Content">Section&nbsp;9.2.7</a>: Partial Content
    795        | "300"  ; <a href="#status.300" id="rfc.xref.status.300.1" title="300 Multiple Choices">Section&nbsp;9.3.1</a>: Multiple Choices
    796        | "301"  ; <a href="#status.301" id="rfc.xref.status.301.1" title="301 Moved Permanently">Section&nbsp;9.3.2</a>: Moved Permanently
    797        | "302"  ; <a href="#status.302" id="rfc.xref.status.302.1" title="302 Found">Section&nbsp;9.3.3</a>: Found
    798        | "303"  ; <a href="#status.303" id="rfc.xref.status.303.1" title="303 See Other">Section&nbsp;9.3.4</a>: See Other
    799        | "304"  ; <a href="#status.304" id="rfc.xref.status.304.1" title="304 Not Modified">Section&nbsp;9.3.5</a>: Not Modified
    800        | "305"  ; <a href="#status.305" id="rfc.xref.status.305.1" title="305 Use Proxy">Section&nbsp;9.3.6</a>: Use Proxy
    801        | "307"  ; <a href="#status.307" id="rfc.xref.status.307.1" title="307 Temporary Redirect">Section&nbsp;9.3.8</a>: Temporary Redirect
    802        | "400"  ; <a href="#status.400" id="rfc.xref.status.400.1" title="400 Bad Request">Section&nbsp;9.4.1</a>: Bad Request
    803        | "401"  ; <a href="#status.401" id="rfc.xref.status.401.1" title="401 Unauthorized">Section&nbsp;9.4.2</a>: Unauthorized
    804        | "402"  ; <a href="#status.402" id="rfc.xref.status.402.1" title="402 Payment Required">Section&nbsp;9.4.3</a>: Payment Required
    805        | "403"  ; <a href="#status.403" id="rfc.xref.status.403.1" title="403 Forbidden">Section&nbsp;9.4.4</a>: Forbidden
    806        | "404"  ; <a href="#status.404" id="rfc.xref.status.404.1" title="404 Not Found">Section&nbsp;9.4.5</a>: Not Found
    807        | "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
    808        | "406"  ; <a href="#status.406" id="rfc.xref.status.406.1" title="406 Not Acceptable">Section&nbsp;9.4.7</a>: Not Acceptable
    809        | "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
    810        | "408"  ; <a href="#status.408" id="rfc.xref.status.408.1" title="408 Request Timeout">Section&nbsp;9.4.9</a>: Request Time-out
    811        | "409"  ; <a href="#status.409" id="rfc.xref.status.409.1" title="409 Conflict">Section&nbsp;9.4.10</a>: Conflict
    812        | "410"  ; <a href="#status.410" id="rfc.xref.status.410.1" title="410 Gone">Section&nbsp;9.4.11</a>: Gone
    813        | "411"  ; <a href="#status.411" id="rfc.xref.status.411.1" title="411 Length Required">Section&nbsp;9.4.12</a>: Length Required
    814        | "412"  ; <a href="#status.412" id="rfc.xref.status.412.1" title="412 Precondition Failed">Section&nbsp;9.4.13</a>: Precondition Failed
    815        | "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
    816        | "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
    817        | "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
    818        | "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
    819        | "417"  ; <a href="#status.417" id="rfc.xref.status.417.1" title="417 Expectation Failed">Section&nbsp;9.4.18</a>: Expectation Failed
    820        | "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
    821        | "501"  ; <a href="#status.501" id="rfc.xref.status.501.1" title="501 Not Implemented">Section&nbsp;9.5.2</a>: Not Implemented
    822        | "502"  ; <a href="#status.502" id="rfc.xref.status.502.1" title="502 Bad Gateway">Section&nbsp;9.5.3</a>: Bad Gateway
    823        | "503"  ; <a href="#status.503" id="rfc.xref.status.503.1" title="503 Service Unavailable">Section&nbsp;9.5.4</a>: Service Unavailable
    824        | "504"  ; <a href="#status.504" id="rfc.xref.status.504.1" title="504 Gateway Timeout">Section&nbsp;9.5.5</a>: Gateway Time-out
    825        | "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
    826        | <a href="#request.header.fields" class="smpl">extension-code</a>
     787       / "101"  ; <a href="#status.101" id="rfc.xref.status.101.1" title="101 Switching Protocols">Section&nbsp;9.1.2</a>: Switching Protocols
     788       / "200"  ; <a href="#status.200" id="rfc.xref.status.200.1" title="200 OK">Section&nbsp;9.2.1</a>: OK
     789       / "201"  ; <a href="#status.201" id="rfc.xref.status.201.1" title="201 Created">Section&nbsp;9.2.2</a>: Created
     790       / "202"  ; <a href="#status.202" id="rfc.xref.status.202.1" title="202 Accepted">Section&nbsp;9.2.3</a>: Accepted
     791       / "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
     792       / "204"  ; <a href="#status.204" id="rfc.xref.status.204.1" title="204 No Content">Section&nbsp;9.2.5</a>: No Content
     793       / "205"  ; <a href="#status.205" id="rfc.xref.status.205.1" title="205 Reset Content">Section&nbsp;9.2.6</a>: Reset Content
     794       / "206"  ; <a href="#status.206" id="rfc.xref.status.206.1" title="206 Partial Content">Section&nbsp;9.2.7</a>: Partial Content
     795       / "300"  ; <a href="#status.300" id="rfc.xref.status.300.1" title="300 Multiple Choices">Section&nbsp;9.3.1</a>: Multiple Choices
     796       / "301"  ; <a href="#status.301" id="rfc.xref.status.301.1" title="301 Moved Permanently">Section&nbsp;9.3.2</a>: Moved Permanently
     797       / "302"  ; <a href="#status.302" id="rfc.xref.status.302.1" title="302 Found">Section&nbsp;9.3.3</a>: Found
     798       / "303"  ; <a href="#status.303" id="rfc.xref.status.303.1" title="303 See Other">Section&nbsp;9.3.4</a>: See Other
     799       / "304"  ; <a href="#status.304" id="rfc.xref.status.304.1" title="304 Not Modified">Section&nbsp;9.3.5</a>: Not Modified
     800       / "305"  ; <a href="#status.305" id="rfc.xref.status.305.1" title="305 Use Proxy">Section&nbsp;9.3.6</a>: Use Proxy
     801       / "307"  ; <a href="#status.307" id="rfc.xref.status.307.1" title="307 Temporary Redirect">Section&nbsp;9.3.8</a>: Temporary Redirect
     802       / "400"  ; <a href="#status.400" id="rfc.xref.status.400.1" title="400 Bad Request">Section&nbsp;9.4.1</a>: Bad Request
     803       / "401"  ; <a href="#status.401" id="rfc.xref.status.401.1" title="401 Unauthorized">Section&nbsp;9.4.2</a>: Unauthorized
     804       / "402"  ; <a href="#status.402" id="rfc.xref.status.402.1" title="402 Payment Required">Section&nbsp;9.4.3</a>: Payment Required
     805       / "403"  ; <a href="#status.403" id="rfc.xref.status.403.1" title="403 Forbidden">Section&nbsp;9.4.4</a>: Forbidden
     806       / "404"  ; <a href="#status.404" id="rfc.xref.status.404.1" title="404 Not Found">Section&nbsp;9.4.5</a>: Not Found
     807       / "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
     808       / "406"  ; <a href="#status.406" id="rfc.xref.status.406.1" title="406 Not Acceptable">Section&nbsp;9.4.7</a>: Not Acceptable
     809       / "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
     810       / "408"  ; <a href="#status.408" id="rfc.xref.status.408.1" title="408 Request Timeout">Section&nbsp;9.4.9</a>: Request Time-out
     811       / "409"  ; <a href="#status.409" id="rfc.xref.status.409.1" title="409 Conflict">Section&nbsp;9.4.10</a>: Conflict
     812       / "410"  ; <a href="#status.410" id="rfc.xref.status.410.1" title="410 Gone">Section&nbsp;9.4.11</a>: Gone
     813       / "411"  ; <a href="#status.411" id="rfc.xref.status.411.1" title="411 Length Required">Section&nbsp;9.4.12</a>: Length Required
     814       / "412"  ; <a href="#status.412" id="rfc.xref.status.412.1" title="412 Precondition Failed">Section&nbsp;9.4.13</a>: Precondition Failed
     815       / "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
     816       / "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
     817       / "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
     818       / "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
     819       / "417"  ; <a href="#status.417" id="rfc.xref.status.417.1" title="417 Expectation Failed">Section&nbsp;9.4.18</a>: Expectation Failed
     820       / "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
     821       / "501"  ; <a href="#status.501" id="rfc.xref.status.501.1" title="501 Not Implemented">Section&nbsp;9.5.2</a>: Not Implemented
     822       / "502"  ; <a href="#status.502" id="rfc.xref.status.502.1" title="502 Bad Gateway">Section&nbsp;9.5.3</a>: Bad Gateway
     823       / "503"  ; <a href="#status.503" id="rfc.xref.status.503.1" title="503 Service Unavailable">Section&nbsp;9.5.4</a>: Service Unavailable
     824       / "504"  ; <a href="#status.504" id="rfc.xref.status.504.1" title="504 Gateway Timeout">Section&nbsp;9.5.5</a>: Gateway Time-out
     825       / "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
     826       / <a href="#request.header.fields" class="smpl">extension-code</a>
    827827
    828828  <a href="#request.header.fields" class="smpl">extension-code</a> = 3<a href="#notation" class="smpl">DIGIT</a>
    … …  
    847847      </p>
    848848      <div id="rfc.figure.u.12"></div><pre class="inline"><span id="rfc.iref.g.7"></span>  <a href="#response.header.fields" class="smpl">response-header</a> = <a href="#abnf.dependencies" class="smpl">Accept-Ranges</a>           ; <a href="#Part5" id="rfc.xref.Part5.6"><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>
    849                   | <a href="#abnf.dependencies" class="smpl">Age</a>                     ; <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.age" title="Age">Section 16.1</a>
    850                   | <a href="#header.allow" class="smpl">Allow</a>                   ; <a href="#header.allow" id="rfc.xref.header.allow.2" title="Allow">Section&nbsp;10.1</a>
    851                   | <a href="#abnf.dependencies" class="smpl">ETag</a>                    ; <a href="#Part4" id="rfc.xref.Part4.10"><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>
    852                   | <a href="#header.location" class="smpl">Location</a>                ; <a href="#header.location" id="rfc.xref.header.location.1" title="Location">Section&nbsp;10.4</a>
    853                   | <a href="#abnf.dependencies" class="smpl">Proxy-Authenticate</a>      ; <a href="#Part7" id="rfc.xref.Part7.7"><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>
    854                   | <a href="#header.retry-after" class="smpl">Retry-After</a>             ; <a href="#header.retry-after" id="rfc.xref.header.retry-after.1" title="Retry-After">Section&nbsp;10.7</a>
    855                   | <a href="#header.server" class="smpl">Server</a>                  ; <a href="#header.server" id="rfc.xref.header.server.1" title="Server">Section&nbsp;10.8</a>
    856                   | <a href="#abnf.dependencies" class="smpl">Vary</a>                    ; <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.vary" title="Vary">Section 16.5</a>
    857                   | <a href="#abnf.dependencies" class="smpl">WWW-Authenticate</a>        ; <a href="#Part7" id="rfc.xref.Part7.8"><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>
     849                  / <a href="#abnf.dependencies" class="smpl">Age</a>                     ; <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.age" title="Age">Section 16.1</a>
     850                  / <a href="#header.allow" class="smpl">Allow</a>                   ; <a href="#header.allow" id="rfc.xref.header.allow.2" title="Allow">Section&nbsp;10.1</a>
     851                  / <a href="#abnf.dependencies" class="smpl">ETag</a>                    ; <a href="#Part4" id="rfc.xref.Part4.10"><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>
     852                  / <a href="#header.location" class="smpl">Location</a>                ; <a href="#header.location" id="rfc.xref.header.location.1" title="Location">Section&nbsp;10.4</a>
     853                  / <a href="#abnf.dependencies" class="smpl">Proxy-Authenticate</a>      ; <a href="#Part7" id="rfc.xref.Part7.7"><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>
     854                  / <a href="#header.retry-after" class="smpl">Retry-After</a>             ; <a href="#header.retry-after" id="rfc.xref.header.retry-after.1" title="Retry-After">Section&nbsp;10.7</a>
     855                  / <a href="#header.server" class="smpl">Server</a>                  ; <a href="#header.server" id="rfc.xref.header.server.1" title="Server">Section&nbsp;10.8</a>
     856                  / <a href="#abnf.dependencies" class="smpl">Vary</a>                    ; <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.vary" title="Vary">Section 16.5</a>
     857                  / <a href="#abnf.dependencies" class="smpl">WWW-Authenticate</a>        ; <a href="#Part7" id="rfc.xref.Part7.8"><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>
    858858</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
    859859         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
    … …  
    14731473      <div id="rfc.figure.u.15"></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>  <a href="#header.expect" class="smpl">Expect</a>       =  "Expect" ":" 1#<a href="#header.expect" class="smpl">expectation</a>
    14741474 
    1475   <a href="#header.expect" class="smpl">expectation</a>  =  "100-continue" | <a href="#header.expect" class="smpl">expectation-extension</a>
    1476   <a href="#header.expect" class="smpl">expectation-extension</a> =  <a href="#notation" class="smpl">token</a> [ "=" ( <a href="#notation" class="smpl">token</a> | <a href="#notation" class="smpl">quoted-string</a> )
     1475  <a href="#header.expect" class="smpl">expectation</a>  =  "100-continue" / <a href="#header.expect" class="smpl">expectation-extension</a>
     1476  <a href="#header.expect" class="smpl">expectation-extension</a> =  <a href="#notation" class="smpl">token</a> [ "=" ( <a href="#notation" class="smpl">token</a> / <a href="#notation" class="smpl">quoted-string</a> )
    14771477                           *<a href="#header.expect" class="smpl">expect-params</a> ]
    1478   <a href="#header.expect" class="smpl">expect-params</a> =  ";" <a href="#notation" class="smpl">token</a> [ "=" ( <a href="#notation" class="smpl">token</a> | <a href="#notation" class="smpl">quoted-string</a> ) ]
     1478  <a href="#header.expect" class="smpl">expect-params</a> =  ";" <a href="#notation" class="smpl">token</a> [ "=" ( <a href="#notation" class="smpl">token</a> / <a href="#notation" class="smpl">quoted-string</a> ) ]
    14791479</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
    14801480         the request, some other 4xx status.
    … …  
    15591559         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.
    15601560      </p>
    1561       <div id="rfc.figure.u.21"></div><pre class="inline"><span id="rfc.iref.g.17"></span>  <a href="#header.referer" class="smpl">Referer</a>        = "Referer" ":" ( <a href="#abnf.dependencies" class="smpl">absoluteURI</a> | <a href="#abnf.dependencies" class="smpl">relativeURI</a> )
     1561      <div id="rfc.figure.u.21"></div><pre class="inline"><span id="rfc.iref.g.17"></span>  <a href="#header.referer" class="smpl">Referer</a>        = "Referer" ":" ( <a href="#abnf.dependencies" class="smpl">absoluteURI</a> / <a href="#abnf.dependencies" class="smpl">relativeURI</a> )
    15621562</pre><p id="rfc.section.10.6.p.3">Example:</p>
    15631563      <div id="rfc.figure.u.22"></div><pre class="text">    Referer: http://www.example.org/hypertext/Overview.html
    … …  
    15721572         the time of the response.
    15731573      </p>
    1574       <div id="rfc.figure.u.23"></div><pre class="inline"><span id="rfc.iref.g.18"></span>  <a href="#header.retry-after" class="smpl">Retry-After</a>   = "Retry-After" ":" ( <a href="#abnf.dependencies" class="smpl">HTTP-date</a> | <a href="#rule.delta-seconds" class="smpl">delta-seconds</a> )
     1574      <div id="rfc.figure.u.23"></div><pre class="inline"><span id="rfc.iref.g.18"></span>  <a href="#header.retry-after" class="smpl">Retry-After</a>   = "Retry-After" ":" ( <a href="#abnf.dependencies" class="smpl">HTTP-date</a> / <a href="#rule.delta-seconds" class="smpl">delta-seconds</a> )
    15751575</pre><div id="rule.delta-seconds">
    15761576         <p id="rfc.section.10.7.p.3">  Time spans are non-negative decimal integers, representing time in seconds.</p>
    … …  
    15881588         for identifying the application.
    15891589      </p>
    1590       <div id="rfc.figure.u.26"></div><pre class="inline"><span id="rfc.iref.g.20"></span>  <a href="#header.server" class="smpl">Server</a>         = "Server" ":" 1*( <a href="#abnf.dependencies" class="smpl">product</a> | <a href="#notation" class="smpl">comment</a> )
     1590      <div id="rfc.figure.u.26"></div><pre class="inline"><span id="rfc.iref.g.20"></span>  <a href="#header.server" class="smpl">Server</a>         = "Server" ":" 1*( <a href="#abnf.dependencies" class="smpl">product</a> / <a href="#notation" class="smpl">comment</a> )
    15911591</pre><p id="rfc.section.10.8.p.3">Example:</p>
    15921592      <div id="rfc.figure.u.27"></div><pre class="text">    Server: CERN/3.0 libwww/2.17
    … …  
    16071607         product tokens are listed in order of their significance for identifying the application.
    16081608      </p>
    1609       <div id="rfc.figure.u.28"></div><pre class="inline"><span id="rfc.iref.g.21"></span>  <a href="#header.user-agent" class="smpl">User-Agent</a>     = "User-Agent" ":" 1*( <a href="#abnf.dependencies" class="smpl">product</a> | <a href="#notation" class="smpl">comment</a> )
     1609      <div id="rfc.figure.u.28"></div><pre class="inline"><span id="rfc.iref.g.21"></span>  <a href="#header.user-agent" class="smpl">User-Agent</a>     = "User-Agent" ":" 1*( <a href="#abnf.dependencies" class="smpl">product</a> / <a href="#notation" class="smpl">comment</a> )
    16101610</pre><p id="rfc.section.10.9.p.3">Example:</p>
    16111611      <div id="rfc.figure.u.29"></div><pre class="text">    User-Agent: CERN-LineMode/2.15 libwww/2.17b3
    … …  
    23152315         <li> &lt;<a href="http://tools.ietf.org/wg/httpbis/trac/ticket/132">http://tools.ietf.org/wg/httpbis/trac/ticket/132</a>&gt;: "RFC 2822 is updated by RFC 5322"
    23162316         </li>
     2317      </ul>
     2318      <p id="rfc.section.B.6.p.2">Ongoing work on ABNF conversion (&lt;<a href="http://tools.ietf.org/wg/httpbis/trac/ticket/36">http://tools.ietf.org/wg/httpbis/trac/ticket/36</a>&gt;):
     2319      </p>
     2320      <ul>
     2321         <li>Use "/" instead of "|" for alternatives.</li>
    23172322      </ul>
    23182323      <h1><a id="rfc.copyright" href="#rfc.copyright">Full Copyright Statement</a></h1>
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