Ignore:
Timestamp:
20/08/12 01:04:36 (8 years ago)
Author:
fielding@…
Message:

remove nonsense about specific header fields being hop-by-hop; a field is only hop-by-hop if defined so by Connection

File:
1 edited

Legend:

Unmodified
Added
Removed

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

    r1833 r1834  
    639639               <li><a href="#rfc.section.5.4">5.4</a>&nbsp;&nbsp;&nbsp;<a href="#header.host">Host</a></li>
    640640               <li><a href="#rfc.section.5.5">5.5</a>&nbsp;&nbsp;&nbsp;<a href="#effective.request.uri">Effective Request URI</a></li>
    641                <li><a href="#rfc.section.5.6">5.6</a>&nbsp;&nbsp;&nbsp;<a href="#message.forwarding">Message Forwarding</a><ul>
    642                      <li><a href="#rfc.section.5.6.1">5.6.1</a>&nbsp;&nbsp;&nbsp;<a href="#end-to-end.and.hop-by-hop.header-fields">End-to-end and Hop-by-hop Header Fields</a></li>
    643                      <li><a href="#rfc.section.5.6.2">5.6.2</a>&nbsp;&nbsp;&nbsp;<a href="#non-modifiable.header-fields">Non-modifiable Header Fields</a></li>
    644                   </ul>
    645                </li>
    646                <li><a href="#rfc.section.5.7">5.7</a>&nbsp;&nbsp;&nbsp;<a href="#associating.response.to.request">Associating a Response to a Request</a></li>
     641               <li><a href="#rfc.section.5.6">5.6</a>&nbsp;&nbsp;&nbsp;<a href="#message.forwarding">Message Forwarding</a></li>
     642               <li><a href="#rfc.section.5.7">5.7</a>&nbsp;&nbsp;&nbsp;<a href="#message.transforming">Message Transforming</a></li>
     643               <li><a href="#rfc.section.5.8">5.8</a>&nbsp;&nbsp;&nbsp;<a href="#associating.response.to.request">Associating a Response to a Request</a></li>
    647644            </ul>
    648645         </li>
    … …  
    18491846         enhance (or interfere) with either direction of the stream.
    18501847      </p>
    1851       <p id="rfc.section.5.6.p.2">In order to avoid request loops, a proxy that forwards requests to other proxies <em class="bcp14">MUST</em> be able to recognize and exclude all of its own server names, including any aliases, local variations, or literal IP addresses.
    1852       </p>
    1853       <p id="rfc.section.5.6.p.3">If a proxy receives a request-target with a host name that is not a fully qualified domain name, it <em class="bcp14">MAY</em> add its own domain to the host name it received when forwarding the request. A proxy <em class="bcp14">MUST NOT</em> change the host name if it is a fully qualified domain name.
    1854       </p>
    1855       <p id="rfc.section.5.6.p.4">A non-transforming proxy <em class="bcp14">MUST NOT</em> modify the "path-absolute" and "query" parts of the received request-target when forwarding it to the next inbound server,
     1848      <p id="rfc.section.5.6.p.2">Intermediaries that forward a message <em class="bcp14">MUST</em> implement the <a href="#header.connection" class="smpl">Connection</a> header field, as specified in <a href="#header.connection" id="rfc.xref.header.connection.5" title="Connection">Section&nbsp;6.1</a>, to exclude fields that are only intended for the incoming connection.
     1849      </p>
     1850      <p id="rfc.section.5.6.p.3">In order to avoid request loops, a proxy that forwards requests to other proxies <em class="bcp14">MUST</em> be able to recognize and exclude all of its own server names, including any aliases, local variations, or literal IP addresses.
     1851      </p>
     1852      <h2 id="rfc.section.5.7"><a href="#rfc.section.5.7">5.7</a>&nbsp;<a id="message.transforming" href="#message.transforming">Message Transforming</a></h2>
     1853      <p id="rfc.section.5.7.p.1">If a proxy receives a request-target with a host name that is not a fully qualified domain name, it <em class="bcp14">MAY</em> add its own domain to the host name it received when forwarding the request. A proxy <em class="bcp14">MUST NOT</em> change the host name if it is a fully qualified domain name.
     1854      </p>
     1855      <p id="rfc.section.5.7.p.2">A non-transforming proxy <em class="bcp14">MUST NOT</em> modify the "path-absolute" and "query" parts of the received request-target when forwarding it to the next inbound server,
    18561856         except as noted above to replace an empty path with "/" or "*".
    18571857      </p>
    1858       <p id="rfc.section.5.6.p.5">Intermediaries that forward a message <em class="bcp14">MUST</em> implement the <a href="#header.connection" class="smpl">Connection</a> header field as specified in <a href="#header.connection" id="rfc.xref.header.connection.5" title="Connection">Section&nbsp;6.1</a>.
    1859       </p>
    1860       <h3 id="rfc.section.5.6.1"><a href="#rfc.section.5.6.1">5.6.1</a>&nbsp;<a id="end-to-end.and.hop-by-hop.header-fields" href="#end-to-end.and.hop-by-hop.header-fields">End-to-end and Hop-by-hop Header Fields</a></h3>
    1861       <p id="rfc.section.5.6.1.p.1">For the purpose of defining the behavior of caches and non-caching proxies, we divide HTTP header fields into two categories: </p>
    1862       <ul>
    1863          <li>End-to-end header fields, which are transmitted to the ultimate recipient of a request or response. End-to-end header fields
    1864             in responses <em class="bcp14">MUST</em> be stored as part of a cache entry and <em class="bcp14">MUST</em> be transmitted in any response formed from a cache entry.
    1865          </li>
    1866          <li>Hop-by-hop header fields, which are meaningful only for a single transport-level connection, and are not stored by caches
    1867             or forwarded by proxies.
    1868          </li>
    1869       </ul>
    1870       <p id="rfc.section.5.6.1.p.2">The following HTTP/1.1 header fields are hop-by-hop header fields: </p>
    1871       <ul>
    1872          <li><a href="#header.connection" class="smpl">Connection</a></li>
    1873          <li>Keep-Alive (<a href="http://tools.ietf.org/html/rfc2068#section-19.7.1.1">Section 19.7.1.1</a> of <a href="#RFC2068" id="rfc.xref.RFC2068.3"><cite title="Hypertext Transfer Protocol -- HTTP/1.1">[RFC2068]</cite></a>)
    1874          </li>
    1875          <li><a href="p7-auth.html#header.proxy-authenticate" class="smpl">Proxy-Authenticate</a> (<a href="p7-auth.html#header.proxy-authenticate" title="Proxy-Authenticate">Section 4.2</a> of <a href="#Part7" id="rfc.xref.Part7.2"><cite title="HTTP/1.1, part 7: Authentication">[Part7]</cite></a>)
    1876          </li>
    1877          <li><a href="p7-auth.html#header.proxy-authorization" class="smpl">Proxy-Authorization</a> (<a href="p7-auth.html#header.proxy-authorization" title="Proxy-Authorization">Section 4.3</a> of <a href="#Part7" id="rfc.xref.Part7.3"><cite title="HTTP/1.1, part 7: Authentication">[Part7]</cite></a>)
    1878          </li>
    1879          <li><a href="#header.te" class="smpl">TE</a></li>
    1880          <li><a href="#header.trailer" class="smpl">Trailer</a></li>
    1881          <li><a href="#header.transfer-encoding" class="smpl">Transfer-Encoding</a></li>
    1882          <li><a href="#header.upgrade" class="smpl">Upgrade</a></li>
    1883       </ul>
    1884       <p id="rfc.section.5.6.1.p.3">All other header fields defined by HTTP/1.1 are end-to-end header fields.</p>
    1885       <p id="rfc.section.5.6.1.p.4">Other hop-by-hop header fields <em class="bcp14">MUST</em> be listed in a <a href="#header.connection" class="smpl">Connection</a> header field (<a href="#header.connection" id="rfc.xref.header.connection.6" title="Connection">Section&nbsp;6.1</a>).
    1886       </p>
    1887       <h3 id="rfc.section.5.6.2"><a href="#rfc.section.5.6.2">5.6.2</a>&nbsp;<a id="non-modifiable.header-fields" href="#non-modifiable.header-fields">Non-modifiable Header Fields</a></h3>
    1888       <p id="rfc.section.5.6.2.p.1">Some features of HTTP/1.1, such as Digest Authentication, depend on the value of certain end-to-end header fields. A non-transforming
    1889          proxy <em class="bcp14">SHOULD NOT</em> modify an end-to-end header field unless the definition of that header field requires or specifically allows that.
    1890       </p>
    1891       <p id="rfc.section.5.6.2.p.2">A non-transforming proxy <em class="bcp14">MUST NOT</em> modify any of the following fields in a request or response, and it <em class="bcp14">MUST NOT</em> add any of these fields if not already present:
    1892       </p>
    1893       <ul>
    1894          <li><a href="p2-semantics.html#header.allow" class="smpl">Allow</a> (<a href="p2-semantics.html#header.allow" title="Allow">Section 9.5</a> of <a href="#Part2" id="rfc.xref.Part2.15"><cite title="HTTP/1.1, part 2: Semantics and Payloads">[Part2]</cite></a>)
    1895          </li>
    1896          <li><a href="p2-semantics.html#header.content-location" class="smpl">Content-Location</a> (<a href="p2-semantics.html#header.content-location" title="Content-Location">Section 9.8</a> of <a href="#Part2" id="rfc.xref.Part2.16"><cite title="HTTP/1.1, part 2: Semantics and Payloads">[Part2]</cite></a>)
     1858      <p id="rfc.section.5.7.p.3">A non-transforming proxy <em class="bcp14">MUST</em> preserve the message payload (<a href="#Part2" id="rfc.xref.Part2.15"><cite title="HTTP/1.1, part 2: Semantics and Payloads">[Part2]</cite></a>), though it <em class="bcp14">MAY</em> change the message body through application or removal of a transfer-coding (<a href="#transfer.codings" title="Transfer Codings">Section&nbsp;4</a>).
     1859      </p>
     1860      <p id="rfc.section.5.7.p.4">A non-transforming proxy <em class="bcp14">SHOULD NOT</em> modify header fields that provide information about the end points of the communication chain, the resource state, or the
     1861         selected representation.
     1862      </p>
     1863      <p id="rfc.section.5.7.p.5">A non-transforming proxy <em class="bcp14">MUST NOT</em> modify any of the following fields in a request or response, and it <em class="bcp14">MUST NOT</em> add any of these fields if not already present:
     1864      </p>
     1865      <ul>
     1866         <li><a href="p2-semantics.html#header.allow" class="smpl">Allow</a> (<a href="p2-semantics.html#header.allow" title="Allow">Section 9.5</a> of <a href="#Part2" id="rfc.xref.Part2.16"><cite title="HTTP/1.1, part 2: Semantics and Payloads">[Part2]</cite></a>)
     1867         </li>
     1868         <li><a href="p2-semantics.html#header.content-location" class="smpl">Content-Location</a> (<a href="p2-semantics.html#header.content-location" title="Content-Location">Section 9.8</a> of <a href="#Part2" id="rfc.xref.Part2.17"><cite title="HTTP/1.1, part 2: Semantics and Payloads">[Part2]</cite></a>)
    18971869         </li>
    18981870         <li>Content-MD5 (<a href="http://tools.ietf.org/html/rfc2616#section-14.15">Section 14.15</a> of <a href="#RFC2616" id="rfc.xref.RFC2616.3"><cite title="Hypertext Transfer Protocol -- HTTP/1.1">[RFC2616]</cite></a>)
    … …  
    19021874         <li><a href="p4-conditional.html#header.last-modified" class="smpl">Last-Modified</a> (<a href="p4-conditional.html#header.last-modified" title="Last-Modified">Section 2.2</a> of <a href="#Part4" id="rfc.xref.Part4.5"><cite title="HTTP/1.1, part 4: Conditional Requests">[Part4]</cite></a>)
    19031875         </li>
    1904          <li><a href="p2-semantics.html#header.server" class="smpl">Server</a> (<a href="p2-semantics.html#header.server" title="Server">Section 9.17</a> of <a href="#Part2" id="rfc.xref.Part2.17"><cite title="HTTP/1.1, part 2: Semantics and Payloads">[Part2]</cite></a>)
    1905          </li>
    1906       </ul>
    1907       <p id="rfc.section.5.6.2.p.3">A non-transforming proxy <em class="bcp14">MUST NOT</em> modify any of the following fields in a response:
    1908       </p>
    1909       <ul>
    1910          <li><a href="p6-cache.html#header.expires" class="smpl">Expires</a> (<a href="p6-cache.html#header.expires" title="Expires">Section 7.3</a> of <a href="#Part6" id="rfc.xref.Part6.7"><cite title="HTTP/1.1, part 6: Caching">[Part6]</cite></a>)
    1911          </li>
    1912       </ul>
    1913       <p id="rfc.section.5.6.2.p.4">but it <em class="bcp14">MAY</em> add any of these fields if not already present. If an <a href="p6-cache.html#header.expires" class="smpl">Expires</a> header field is added, it <em class="bcp14">MUST</em> be given a field value identical to that of the <a href="p2-semantics.html#header.date" class="smpl">Date</a> header field in that response.
    1914       </p>
    1915       <p id="rfc.section.5.6.2.p.5">A proxy <em class="bcp14">MUST NOT</em> modify or add any of the following fields in a message that contains the no-transform cache-control directive, or in any request:
    1916       </p>
    1917       <ul>
    1918          <li><a href="p2-semantics.html#header.content-encoding" class="smpl">Content-Encoding</a> (<a href="p2-semantics.html#header.content-encoding" title="Content-Encoding">Section 9.6</a> of <a href="#Part2" id="rfc.xref.Part2.18"><cite title="HTTP/1.1, part 2: Semantics and Payloads">[Part2]</cite></a>)
     1876         <li><a href="p2-semantics.html#header.server" class="smpl">Server</a> (<a href="p2-semantics.html#header.server" title="Server">Section 9.17</a> of <a href="#Part2" id="rfc.xref.Part2.18"><cite title="HTTP/1.1, part 2: Semantics and Payloads">[Part2]</cite></a>)
     1877         </li>
     1878      </ul>
     1879      <p id="rfc.section.5.7.p.6">A non-transforming proxy <em class="bcp14">MUST NOT</em> modify an <a href="p6-cache.html#header.expires" class="smpl">Expires</a> header field (<a href="p6-cache.html#header.expires" title="Expires">Section 7.3</a> of <a href="#Part6" id="rfc.xref.Part6.7"><cite title="HTTP/1.1, part 6: Caching">[Part6]</cite></a>) if already present in a response, but it <em class="bcp14">MAY</em> add an <a href="p6-cache.html#header.expires" class="smpl">Expires</a> header field with a field-value identical to that of the <a href="p2-semantics.html#header.date" class="smpl">Date</a> header field.
     1880      </p>
     1881      <p id="rfc.section.5.7.p.7">A proxy <em class="bcp14">MUST NOT</em> modify or add any of the following fields in a message that contains the no-transform cache-control directive:
     1882      </p>
     1883      <ul>
     1884         <li><a href="p2-semantics.html#header.content-encoding" class="smpl">Content-Encoding</a> (<a href="p2-semantics.html#header.content-encoding" title="Content-Encoding">Section 9.6</a> of <a href="#Part2" id="rfc.xref.Part2.19"><cite title="HTTP/1.1, part 2: Semantics and Payloads">[Part2]</cite></a>)
    19191885         </li>
    19201886         <li><a href="p5-range.html#header.content-range" class="smpl">Content-Range</a> (<a href="p5-range.html#header.content-range" title="Content-Range">Section 5.2</a> of <a href="#Part5" id="rfc.xref.Part5.2"><cite title="HTTP/1.1, part 5: Range Requests">[Part5]</cite></a>)
    19211887         </li>
    1922          <li><a href="p2-semantics.html#header.content-type" class="smpl">Content-Type</a> (<a href="p2-semantics.html#header.content-type" title="Content-Type">Section 9.9</a> of <a href="#Part2" id="rfc.xref.Part2.19"><cite title="HTTP/1.1, part 2: Semantics and Payloads">[Part2]</cite></a>)
    1923          </li>
    1924       </ul>
    1925       <p id="rfc.section.5.6.2.p.6">A transforming proxy <em class="bcp14">MAY</em> modify or add these fields to a message that does not include no-transform, but if it does so, it <em class="bcp14">MUST</em> add a Warning 214 (Transformation applied) if one does not already appear in the message (see <a href="p6-cache.html#header.warning" title="Warning">Section 7.6</a> of <a href="#Part6" id="rfc.xref.Part6.8"><cite title="HTTP/1.1, part 6: Caching">[Part6]</cite></a>).
    1926       </p>
    1927       <div class="note" id="rfc.section.5.6.2.p.7">
    1928          <p> <b>Warning:</b> Unnecessary modification of end-to-end header fields might cause authentication failures if stronger authentication mechanisms
    1929             are introduced in later versions of HTTP. Such authentication mechanisms <em class="bcp14">MAY</em> rely on the values of header fields not listed here.
     1888         <li><a href="p2-semantics.html#header.content-type" class="smpl">Content-Type</a> (<a href="p2-semantics.html#header.content-type" title="Content-Type">Section 9.9</a> of <a href="#Part2" id="rfc.xref.Part2.20"><cite title="HTTP/1.1, part 2: Semantics and Payloads">[Part2]</cite></a>)
     1889         </li>
     1890      </ul>
     1891      <p id="rfc.section.5.7.p.8">A transforming proxy <em class="bcp14">MAY</em> modify or add these fields to a message that does not include no-transform, but if it does so, it <em class="bcp14">MUST</em> add a Warning 214 (Transformation applied) if one does not already appear in the message (see <a href="p6-cache.html#header.warning" title="Warning">Section 7.6</a> of <a href="#Part6" id="rfc.xref.Part6.8"><cite title="HTTP/1.1, part 6: Caching">[Part6]</cite></a>).
     1892      </p>
     1893      <div class="note" id="rfc.section.5.7.p.9">
     1894         <p> <b>Warning:</b> Unnecessary modification of header fields might cause authentication failures if stronger authentication mechanisms are introduced
     1895            in later versions of HTTP. Such authentication mechanisms <em class="bcp14">MAY</em> rely on the values of header fields not listed here.
    19301896         </p>
    19311897      </div>
    1932       <p id="rfc.section.5.6.2.p.8">A non-transforming proxy <em class="bcp14">MUST</em> preserve the message payload (<a href="#Part2" id="rfc.xref.Part2.20"><cite title="HTTP/1.1, part 2: Semantics and Payloads">[Part2]</cite></a>), though it <em class="bcp14">MAY</em> change the message body through application or removal of a transfer-coding (<a href="#transfer.codings" title="Transfer Codings">Section&nbsp;4</a>).
    1933       </p>
    1934       <h2 id="rfc.section.5.7"><a href="#rfc.section.5.7">5.7</a>&nbsp;<a id="associating.response.to.request" href="#associating.response.to.request">Associating a Response to a Request</a></h2>
    1935       <p id="rfc.section.5.7.p.1">HTTP does not include a request identifier for associating a given request message with its corresponding one or more response
     1898      <h2 id="rfc.section.5.8"><a href="#rfc.section.5.8">5.8</a>&nbsp;<a id="associating.response.to.request" href="#associating.response.to.request">Associating a Response to a Request</a></h2>
     1899      <p id="rfc.section.5.8.p.1">HTTP does not include a request identifier for associating a given request message with its corresponding one or more response
    19361900         messages. Hence, it relies on the order of response arrival to correspond exactly to the order in which requests are made
    19371901         on the same connection. More than one response message per request only occurs when one or more informational responses (<a href="p2-semantics.html#status.1xx" class="smpl">1xx</a>, see <a href="p2-semantics.html#status.1xx" title="Informational 1xx">Section 4.3</a> of <a href="#Part2" id="rfc.xref.Part2.21"><cite title="HTTP/1.1, part 2: Semantics and Payloads">[Part2]</cite></a>) precede a final response to the same request.
    19381902      </p>
    1939       <p id="rfc.section.5.7.p.2">A client that uses persistent connections and sends more than one request per connection <em class="bcp14">MUST</em> maintain a list of outstanding requests in the order sent on that connection and <em class="bcp14">MUST</em> associate each received response message to the highest ordered request that has not yet received a final (non-<a href="p2-semantics.html#status.1xx" class="smpl">1xx</a>) response.
     1903      <p id="rfc.section.5.8.p.2">A client that uses persistent connections and sends more than one request per connection <em class="bcp14">MUST</em> maintain a list of outstanding requests in the order sent on that connection and <em class="bcp14">MUST</em> associate each received response message to the highest ordered request that has not yet received a final (non-<a href="p2-semantics.html#status.1xx" class="smpl">1xx</a>) response.
    19401904      </p>
    19411905      <h1 id="rfc.section.6"><a href="#rfc.section.6">6.</a>&nbsp;<a id="connection.management" href="#connection.management">Connection Management</a></h1>
    … …  
    20562020      </p>
    20572021      <p id="rfc.section.6.3.2.p.2">Persistent connections provide a mechanism by which a client and a server can signal the close of a TCP connection. This signaling
    2058          takes place using the <a href="#header.connection" class="smpl">Connection</a> header field (<a href="#header.connection" id="rfc.xref.header.connection.7" title="Connection">Section&nbsp;6.1</a>). Once a close has been signaled, the client <em class="bcp14">MUST NOT</em> send any more requests on that connection.
     2022         takes place using the <a href="#header.connection" class="smpl">Connection</a> header field (<a href="#header.connection" id="rfc.xref.header.connection.6" title="Connection">Section&nbsp;6.1</a>). Once a close has been signaled, the client <em class="bcp14">MUST NOT</em> send any more requests on that connection.
    20592023      </p>
    20602024      <h4 id="rfc.section.6.3.2.1"><a href="#rfc.section.6.3.2.1">6.3.2.1</a>&nbsp;<a id="persistent.negotiation" href="#persistent.negotiation">Negotiation</a></h4>
    … …  
    20712035      </p>
    20722036      <p id="rfc.section.6.3.2.1.p.5">Each persistent connection applies to only one transport link.</p>
    2073       <p id="rfc.section.6.3.2.1.p.6">A proxy server <em class="bcp14">MUST NOT</em> establish a HTTP/1.1 persistent connection with an HTTP/1.0 client (but see <a href="http://tools.ietf.org/html/rfc2068#section-19.7.1">Section 19.7.1</a> of <a href="#RFC2068" id="rfc.xref.RFC2068.4"><cite title="Hypertext Transfer Protocol -- HTTP/1.1">[RFC2068]</cite></a> for information and discussion of the problems with the Keep-Alive header field implemented by many HTTP/1.0 clients).
     2037      <p id="rfc.section.6.3.2.1.p.6">A proxy server <em class="bcp14">MUST NOT</em> establish a HTTP/1.1 persistent connection with an HTTP/1.0 client (but see <a href="http://tools.ietf.org/html/rfc2068#section-19.7.1">Section 19.7.1</a> of <a href="#RFC2068" id="rfc.xref.RFC2068.3"><cite title="Hypertext Transfer Protocol -- HTTP/1.1">[RFC2068]</cite></a> for information and discussion of the problems with the Keep-Alive header field implemented by many HTTP/1.0 clients).
    20742038      </p>
    20752039      <p id="rfc.section.6.3.2.1.p.7">In order to remain persistent, all messages on the connection <em class="bcp14">MUST</em> have a self-defined message length (i.e., one not defined by closure of the connection), as described in <a href="#message.body" title="Message Body">Section&nbsp;3.3</a>.
    … …  
    21442108         </li>
    21452109         <li>An origin server <em class="bcp14">SHOULD NOT</em> send a <a href="p2-semantics.html#status.100" class="smpl">100 (Continue)</a> response if the request message does not include an <a href="p2-semantics.html#header.expect" class="smpl">Expect</a> header field with the "100-continue" expectation, and <em class="bcp14">MUST NOT</em> send a <a href="p2-semantics.html#status.100" class="smpl">100 (Continue)</a> response if such a request comes from an HTTP/1.0 (or earlier) client. There is an exception to this rule: for compatibility
    2146             with <a href="#RFC2068" id="rfc.xref.RFC2068.5"><cite title="Hypertext Transfer Protocol -- HTTP/1.1">[RFC2068]</cite></a>, a server <em class="bcp14">MAY</em> send a <a href="p2-semantics.html#status.100" class="smpl">100 (Continue)</a> status code in response to an HTTP/1.1 PUT or POST request that does not include an Expect header field with the "100-continue"
     2110            with <a href="#RFC2068" id="rfc.xref.RFC2068.4"><cite title="Hypertext Transfer Protocol -- HTTP/1.1">[RFC2068]</cite></a>, a server <em class="bcp14">MAY</em> send a <a href="p2-semantics.html#status.100" class="smpl">100 (Continue)</a> status code in response to an HTTP/1.1 PUT or POST request that does not include an Expect header field with the "100-continue"
    21472111            expectation. This exception, the purpose of which is to minimize any client processing delays associated with an undeclared
    21482112            wait for <a href="p2-semantics.html#status.100" class="smpl">100 (Continue)</a> status code, applies only to HTTP/1.1 requests, and not to requests with any other HTTP-version value.
    … …  
    22022166         although the first action after changing the protocol <em class="bcp14">MUST</em> be a response to the initial HTTP request containing the Upgrade header field.
    22032167      </p>
    2204       <p id="rfc.section.6.5.p.7">The Upgrade header field only applies to the immediate connection. Therefore, the upgrade keyword <em class="bcp14">MUST</em> be supplied within a <a href="#header.connection" class="smpl">Connection</a> header field (<a href="#header.connection" id="rfc.xref.header.connection.8" title="Connection">Section&nbsp;6.1</a>) whenever Upgrade is present in an HTTP/1.1 message.
     2168      <p id="rfc.section.6.5.p.7">The Upgrade header field only applies to the immediate connection. Therefore, the upgrade keyword <em class="bcp14">MUST</em> be supplied within a <a href="#header.connection" class="smpl">Connection</a> header field (<a href="#header.connection" id="rfc.xref.header.connection.7" title="Connection">Section&nbsp;6.1</a>) whenever Upgrade is present in an HTTP/1.1 message.
    22052169      </p>
    22062170      <p id="rfc.section.6.5.p.8">The Upgrade header field cannot be used to indicate a switch to a protocol on a different connection. For that purpose, it
    … …  
    22372201                  <td class="left">http</td>
    22382202                  <td class="left">standard</td>
    2239                   <td class="left"> <a href="#header.connection" id="rfc.xref.header.connection.9" title="Connection">Section&nbsp;6.1</a>
     2203                  <td class="left"> <a href="#header.connection" id="rfc.xref.header.connection.8" title="Connection">Section&nbsp;6.1</a>
    22402204                  </td>
    22412205               </tr>
    … …  
    22932257      </div>
    22942258      <p id="rfc.section.7.1.p.3">Furthermore, the header field-name "Close" shall be registered as "reserved", since using that name as an HTTP header field
    2295          might conflict with the "close" connection option of the "<a href="#header.connection" class="smpl">Connection</a>" header field (<a href="#header.connection" id="rfc.xref.header.connection.10" title="Connection">Section&nbsp;6.1</a>).
     2259         might conflict with the "close" connection option of the "<a href="#header.connection" class="smpl">Connection</a>" header field (<a href="#header.connection" id="rfc.xref.header.connection.9" title="Connection">Section&nbsp;6.1</a>).
    22962260      </p>
    22972261      <div id="rfc.table.u.1">
    … …  
    26302594      </p>
    26312595      <h1 id="rfc.section.9"><a href="#rfc.section.9">9.</a>&nbsp;<a id="acks" href="#acks">Acknowledgments</a></h1>
    2632       <p id="rfc.section.9.p.1">This edition of HTTP builds on the many contributions that went into <a href="#RFC1945" id="rfc.xref.RFC1945.2">RFC 1945</a>, <a href="#RFC2068" id="rfc.xref.RFC2068.6">RFC 2068</a>, <a href="#RFC2145" id="rfc.xref.RFC2145.2">RFC 2145</a>, and <a href="#RFC2616" id="rfc.xref.RFC2616.4">RFC 2616</a>, including substantial contributions made by the previous authors, editors, and working group chairs: Tim Berners-Lee, Ari
     2596      <p id="rfc.section.9.p.1">This edition of HTTP builds on the many contributions that went into <a href="#RFC1945" id="rfc.xref.RFC1945.2">RFC 1945</a>, <a href="#RFC2068" id="rfc.xref.RFC2068.5">RFC 2068</a>, <a href="#RFC2145" id="rfc.xref.RFC2145.2">RFC 2145</a>, and <a href="#RFC2616" id="rfc.xref.RFC2616.4">RFC 2616</a>, including substantial contributions made by the previous authors, editors, and working group chairs: Tim Berners-Lee, Ari
    26332597         Luotonen, Roy T. Fielding, Henrik Frystyk Nielsen, Jim Gettys, Jeffrey C. Mogul, Larry Masinter, Paul J. Leach, and Mark Nottingham.
    26342598         See <a href="http://tools.ietf.org/html/rfc2616#section-16">Section 16</a> of <a href="#RFC2616" id="rfc.xref.RFC2616.5"><cite title="Hypertext Transfer Protocol -- HTTP/1.1">[RFC2616]</cite></a> for additional acknowledgements from prior revisions.
    … …  
    29102874      <p id="rfc.section.A.1.2.p.1">In HTTP/1.0, each connection is established by the client prior to the request and closed by the server after sending the
    29112875         response. However, some implementations implement the explicitly negotiated ("Keep-Alive") version of persistent connections
    2912          described in <a href="http://tools.ietf.org/html/rfc2068#section-19.7.1">Section 19.7.1</a> of <a href="#RFC2068" id="rfc.xref.RFC2068.7"><cite title="Hypertext Transfer Protocol -- HTTP/1.1">[RFC2068]</cite></a>.
     2876         described in <a href="http://tools.ietf.org/html/rfc2068#section-19.7.1">Section 19.7.1</a> of <a href="#RFC2068" id="rfc.xref.RFC2068.6"><cite title="Hypertext Transfer Protocol -- HTTP/1.1">[RFC2068]</cite></a>.
    29132877      </p>
    29142878      <p id="rfc.section.A.1.2.p.2">Some clients and servers might wish to be compatible with these previous approaches to persistent connections, by explicitly
    … …  
    29622926      </p>
    29632927      <p id="rfc.section.A.2.p.13">Change ABNF productions for header fields to only define the field value.</p>
    2964       <p id="rfc.section.A.2.p.14">Clarify exactly when "close" connection options have to be sent. (<a href="#header.connection" id="rfc.xref.header.connection.11" title="Connection">Section&nbsp;6.1</a>)
     2928      <p id="rfc.section.A.2.p.14">Clarify exactly when "close" connection options have to be sent. (<a href="#header.connection" id="rfc.xref.header.connection.10" title="Connection">Section&nbsp;6.1</a>)
    29652929      </p>
    29662930      <p id="rfc.section.A.2.p.15">Define the semantics of the <a href="#header.upgrade" class="smpl">Upgrade</a> header field in responses other than 101 (this was incorporated from <a href="#RFC2817" id="rfc.xref.RFC2817.3"><cite title="Upgrading to TLS Within HTTP/1.1">[RFC2817]</cite></a>). (<a href="#header.upgrade" id="rfc.xref.header.upgrade.2" title="Upgrade">Section&nbsp;6.5</a>)
    … …  
    35533517                  <li>compress (Coding Format)&nbsp;&nbsp;<a href="#rfc.iref.c.9">4.2.1</a></li>
    35543518                  <li>connection&nbsp;&nbsp;<a href="#rfc.iref.c.2"><b>2.1</b></a></li>
    3555                   <li>Connection header field&nbsp;&nbsp;<a href="#rfc.xref.header.connection.1">2.4</a>, <a href="#rfc.xref.header.connection.2">2.7</a>, <a href="#rfc.xref.header.connection.3">3.2</a>, <a href="#rfc.xref.header.connection.4">4.3</a>, <a href="#rfc.xref.header.connection.5">5.6</a>, <a href="#rfc.xref.header.connection.6">5.6.1</a>, <a href="#rfc.iref.c.13"><b>6.1</b></a>, <a href="#rfc.xref.header.connection.7">6.3.2</a>, <a href="#rfc.xref.header.connection.8">6.5</a>, <a href="#rfc.xref.header.connection.9">7.1</a>, <a href="#rfc.xref.header.connection.10">7.1</a>, <a href="#rfc.xref.header.connection.11">A.2</a></li>
     3519                  <li>Connection header field&nbsp;&nbsp;<a href="#rfc.xref.header.connection.1">2.4</a>, <a href="#rfc.xref.header.connection.2">2.7</a>, <a href="#rfc.xref.header.connection.3">3.2</a>, <a href="#rfc.xref.header.connection.4">4.3</a>, <a href="#rfc.xref.header.connection.5">5.6</a>, <a href="#rfc.iref.c.13"><b>6.1</b></a>, <a href="#rfc.xref.header.connection.6">6.3.2</a>, <a href="#rfc.xref.header.connection.7">6.5</a>, <a href="#rfc.xref.header.connection.8">7.1</a>, <a href="#rfc.xref.header.connection.9">7.1</a>, <a href="#rfc.xref.header.connection.10">A.2</a></li>
    35563520                  <li>Content-Length header field&nbsp;&nbsp;<a href="#rfc.iref.c.6"><b>3.3.2</b></a>, <a href="#rfc.xref.header.content-length.1">7.1</a></li>
    35573521               </ul>
    … …  
    36703634                  <li>Header Fields&nbsp;&nbsp;
    36713635                     <ul>
    3672                         <li>Connection&nbsp;&nbsp;<a href="#rfc.xref.header.connection.1">2.4</a>, <a href="#rfc.xref.header.connection.2">2.7</a>, <a href="#rfc.xref.header.connection.3">3.2</a>, <a href="#rfc.xref.header.connection.4">4.3</a>, <a href="#rfc.xref.header.connection.5">5.6</a>, <a href="#rfc.xref.header.connection.6">5.6.1</a>, <a href="#rfc.iref.h.12"><b>6.1</b></a>, <a href="#rfc.xref.header.connection.7">6.3.2</a>, <a href="#rfc.xref.header.connection.8">6.5</a>, <a href="#rfc.xref.header.connection.9">7.1</a>, <a href="#rfc.xref.header.connection.10">7.1</a>, <a href="#rfc.xref.header.connection.11">A.2</a></li>
     3636                        <li>Connection&nbsp;&nbsp;<a href="#rfc.xref.header.connection.1">2.4</a>, <a href="#rfc.xref.header.connection.2">2.7</a>, <a href="#rfc.xref.header.connection.3">3.2</a>, <a href="#rfc.xref.header.connection.4">4.3</a>, <a href="#rfc.xref.header.connection.5">5.6</a>, <a href="#rfc.iref.h.12"><b>6.1</b></a>, <a href="#rfc.xref.header.connection.6">6.3.2</a>, <a href="#rfc.xref.header.connection.7">6.5</a>, <a href="#rfc.xref.header.connection.8">7.1</a>, <a href="#rfc.xref.header.connection.9">7.1</a>, <a href="#rfc.xref.header.connection.10">A.2</a></li>
    36733637                        <li>Content-Length&nbsp;&nbsp;<a href="#rfc.iref.h.7"><b>3.3.2</b></a>, <a href="#rfc.xref.header.content-length.1">7.1</a></li>
    36743638                        <li>Host&nbsp;&nbsp;<a href="#rfc.xref.header.host.1">5.3</a>, <a href="#rfc.iref.h.11"><b>5.4</b></a>, <a href="#rfc.xref.header.host.2">7.1</a>, <a href="#rfc.xref.header.host.3">A.1.1</a></li>
    … …  
    37233687            <li><a id="rfc.index.P" href="#rfc.index.P"><b>P</b></a><ul>
    37243688                  <li><em>Pad1995</em>&nbsp;&nbsp;<a href="#rfc.xref.Pad1995.1">6.3.1</a>, <a href="#Pad1995"><b>10.2</b></a></li>
    3725                   <li><em>Part2</em>&nbsp;&nbsp;<a href="#rfc.xref.Part2.1">1</a>, <a href="#rfc.xref.Part2.2">2.1</a>, <a href="#rfc.xref.Part2.3">2.4</a>, <a href="#rfc.xref.Part2.4">2.8.1</a>, <a href="#rfc.xref.Part2.5">3.1.1</a>, <a href="#rfc.xref.Part2.6">3.1.1</a>, <a href="#rfc.xref.Part2.7">3.1.2</a>, <a href="#rfc.xref.Part2.8">3.2</a>, <a href="#rfc.xref.Part2.9">3.2</a>, <a href="#rfc.xref.Part2.10">3.3.1</a>, <a href="#rfc.xref.Part2.11">4.3</a>, <a href="#rfc.xref.Part2.12">5.1</a>, <a href="#rfc.xref.Part2.13">5.3</a>, <a href="#rfc.xref.Part2.14">5.3</a>, <a href="#rfc.xref.Part2.15">5.6.2</a>, <a href="#rfc.xref.Part2.16">5.6.2</a>, <a href="#rfc.xref.Part2.17">5.6.2</a>, <a href="#rfc.xref.Part2.18">5.6.2</a>, <a href="#rfc.xref.Part2.19">5.6.2</a>, <a href="#rfc.xref.Part2.20">5.6.2</a>, <a href="#rfc.xref.Part2.21">5.7</a>, <a href="#rfc.xref.Part2.22">6.3.2.2</a>, <a href="#rfc.xref.Part2.23">6.3.4</a>, <a href="#rfc.xref.Part2.24">6.4.3</a>, <a href="#rfc.xref.Part2.25">6.4.3</a>, <a href="#rfc.xref.Part2.26">6.4.3</a>, <a href="#rfc.xref.Part2.27">6.5</a>, <a href="#rfc.xref.Part2.28">7.4</a>, <a href="#rfc.xref.Part2.29">8.6</a>, <a href="#rfc.xref.Part2.30">8.6</a>, <a href="#Part2"><b>10.1</b></a><ul>
     3689                  <li><em>Part2</em>&nbsp;&nbsp;<a href="#rfc.xref.Part2.1">1</a>, <a href="#rfc.xref.Part2.2">2.1</a>, <a href="#rfc.xref.Part2.3">2.4</a>, <a href="#rfc.xref.Part2.4">2.8.1</a>, <a href="#rfc.xref.Part2.5">3.1.1</a>, <a href="#rfc.xref.Part2.6">3.1.1</a>, <a href="#rfc.xref.Part2.7">3.1.2</a>, <a href="#rfc.xref.Part2.8">3.2</a>, <a href="#rfc.xref.Part2.9">3.2</a>, <a href="#rfc.xref.Part2.10">3.3.1</a>, <a href="#rfc.xref.Part2.11">4.3</a>, <a href="#rfc.xref.Part2.12">5.1</a>, <a href="#rfc.xref.Part2.13">5.3</a>, <a href="#rfc.xref.Part2.14">5.3</a>, <a href="#rfc.xref.Part2.15">5.7</a>, <a href="#rfc.xref.Part2.16">5.7</a>, <a href="#rfc.xref.Part2.17">5.7</a>, <a href="#rfc.xref.Part2.18">5.7</a>, <a href="#rfc.xref.Part2.19">5.7</a>, <a href="#rfc.xref.Part2.20">5.7</a>, <a href="#rfc.xref.Part2.21">5.8</a>, <a href="#rfc.xref.Part2.22">6.3.2.2</a>, <a href="#rfc.xref.Part2.23">6.3.4</a>, <a href="#rfc.xref.Part2.24">6.4.3</a>, <a href="#rfc.xref.Part2.25">6.4.3</a>, <a href="#rfc.xref.Part2.26">6.4.3</a>, <a href="#rfc.xref.Part2.27">6.5</a>, <a href="#rfc.xref.Part2.28">7.4</a>, <a href="#rfc.xref.Part2.29">8.6</a>, <a href="#rfc.xref.Part2.30">8.6</a>, <a href="#Part2"><b>10.1</b></a><ul>
    37263690                        <li><em>Section 2</em>&nbsp;&nbsp;<a href="#rfc.xref.Part2.5">3.1.1</a></li>
    37273691                        <li><em>Section 2.1.2</em>&nbsp;&nbsp;<a href="#rfc.xref.Part2.22">6.3.2.2</a>, <a href="#rfc.xref.Part2.23">6.3.4</a></li>
    … …  
    37303694                        <li><em>Section 3.1</em>&nbsp;&nbsp;<a href="#rfc.xref.Part2.9">3.2</a></li>
    37313695                        <li><em>Section 4</em>&nbsp;&nbsp;<a href="#rfc.xref.Part2.4">2.8.1</a>, <a href="#rfc.xref.Part2.7">3.1.2</a></li>
    3732                         <li><em>Section 4.3</em>&nbsp;&nbsp;<a href="#rfc.xref.Part2.21">5.7</a>, <a href="#rfc.xref.Part2.26">6.4.3</a></li>
     3696                        <li><em>Section 4.3</em>&nbsp;&nbsp;<a href="#rfc.xref.Part2.21">5.8</a>, <a href="#rfc.xref.Part2.26">6.4.3</a></li>
    37333697                        <li><em>Section 4.3.1</em>&nbsp;&nbsp;<a href="#rfc.xref.Part2.24">6.4.3</a></li>
    37343698                        <li><em>Section 4.4.4</em>&nbsp;&nbsp;<a href="#rfc.xref.Part2.3">2.4</a></li>
    … …  
    37383702                        <li><em>Section 5.4</em>&nbsp;&nbsp;<a href="#rfc.xref.Part2.10">3.3.1</a>, <a href="#rfc.xref.Part2.28">7.4</a></li>
    37393703                        <li><em>Section 8.3</em>&nbsp;&nbsp;<a href="#rfc.xref.Part2.11">4.3</a></li>
    3740                         <li><em>Section 9.5</em>&nbsp;&nbsp;<a href="#rfc.xref.Part2.15">5.6.2</a></li>
    3741                         <li><em>Section 9.6</em>&nbsp;&nbsp;<a href="#rfc.xref.Part2.18">5.6.2</a></li>
    3742                         <li><em>Section 9.8</em>&nbsp;&nbsp;<a href="#rfc.xref.Part2.16">5.6.2</a></li>
    3743                         <li><em>Section 9.9</em>&nbsp;&nbsp;<a href="#rfc.xref.Part2.19">5.6.2</a></li>
     3704                        <li><em>Section 9.5</em>&nbsp;&nbsp;<a href="#rfc.xref.Part2.16">5.7</a></li>
     3705                        <li><em>Section 9.6</em>&nbsp;&nbsp;<a href="#rfc.xref.Part2.19">5.7</a></li>
     3706                        <li><em>Section 9.8</em>&nbsp;&nbsp;<a href="#rfc.xref.Part2.17">5.7</a></li>
     3707                        <li><em>Section 9.9</em>&nbsp;&nbsp;<a href="#rfc.xref.Part2.20">5.7</a></li>
    37443708                        <li><em>Section 9.10</em>&nbsp;&nbsp;<a href="#rfc.xref.Part2.8">3.2</a></li>
    37453709                        <li><em>Section 9.11</em>&nbsp;&nbsp;<a href="#rfc.xref.Part2.25">6.4.3</a></li>
    3746                         <li><em>Section 9.17</em>&nbsp;&nbsp;<a href="#rfc.xref.Part2.17">5.6.2</a></li>
     3710                        <li><em>Section 9.17</em>&nbsp;&nbsp;<a href="#rfc.xref.Part2.18">5.7</a></li>
    37473711                        <li><em>Appendix A</em>&nbsp;&nbsp;<a href="#rfc.xref.Part2.2">2.1</a></li>
    37483712                     </ul>
    37493713                  </li>
    3750                   <li><em>Part4</em>&nbsp;&nbsp;<a href="#rfc.xref.Part4.1">1</a>, <a href="#rfc.xref.Part4.2">3.3.1</a>, <a href="#rfc.xref.Part4.3">3.3.2</a>, <a href="#rfc.xref.Part4.4">5.6.2</a>, <a href="#rfc.xref.Part4.5">5.6.2</a>, <a href="#Part4"><b>10.1</b></a><ul>
    3751                         <li><em>Section 2.2</em>&nbsp;&nbsp;<a href="#rfc.xref.Part4.5">5.6.2</a></li>
    3752                         <li><em>Section 2.3</em>&nbsp;&nbsp;<a href="#rfc.xref.Part4.4">5.6.2</a></li>
     3714                  <li><em>Part4</em>&nbsp;&nbsp;<a href="#rfc.xref.Part4.1">1</a>, <a href="#rfc.xref.Part4.2">3.3.1</a>, <a href="#rfc.xref.Part4.3">3.3.2</a>, <a href="#rfc.xref.Part4.4">5.7</a>, <a href="#rfc.xref.Part4.5">5.7</a>, <a href="#Part4"><b>10.1</b></a><ul>
     3715                        <li><em>Section 2.2</em>&nbsp;&nbsp;<a href="#rfc.xref.Part4.5">5.7</a></li>
     3716                        <li><em>Section 2.3</em>&nbsp;&nbsp;<a href="#rfc.xref.Part4.4">5.7</a></li>
    37533717                        <li><em>Section 4.1</em>&nbsp;&nbsp;<a href="#rfc.xref.Part4.2">3.3.1</a>, <a href="#rfc.xref.Part4.3">3.3.2</a></li>
    37543718                     </ul>
    37553719                  </li>
    3756                   <li><em>Part5</em>&nbsp;&nbsp;<a href="#rfc.xref.Part5.1">1</a>, <a href="#rfc.xref.Part5.2">5.6.2</a>, <a href="#Part5"><b>10.1</b></a><ul>
    3757                         <li><em>Section 5.2</em>&nbsp;&nbsp;<a href="#rfc.xref.Part5.2">5.6.2</a></li>
     3720                  <li><em>Part5</em>&nbsp;&nbsp;<a href="#rfc.xref.Part5.1">1</a>, <a href="#rfc.xref.Part5.2">5.7</a>, <a href="#Part5"><b>10.1</b></a><ul>
     3721                        <li><em>Section 5.2</em>&nbsp;&nbsp;<a href="#rfc.xref.Part5.2">5.7</a></li>
    37583722                     </ul>
    37593723                  </li>
    3760                   <li><em>Part6</em>&nbsp;&nbsp;<a href="#rfc.xref.Part6.1">1</a>, <a href="#rfc.xref.Part6.2">2.4</a>, <a href="#rfc.xref.Part6.3">2.5</a>, <a href="#rfc.xref.Part6.4">2.8.2</a>, <a href="#rfc.xref.Part6.5">3.4</a>, <a href="#rfc.xref.Part6.6">5.2</a>, <a href="#rfc.xref.Part6.7">5.6.2</a>, <a href="#rfc.xref.Part6.8">5.6.2</a>, <a href="#rfc.xref.Part6.9">6.1</a>, <a href="#Part6"><b>10.1</b></a><ul>
     3724                  <li><em>Part6</em>&nbsp;&nbsp;<a href="#rfc.xref.Part6.1">1</a>, <a href="#rfc.xref.Part6.2">2.4</a>, <a href="#rfc.xref.Part6.3">2.5</a>, <a href="#rfc.xref.Part6.4">2.8.2</a>, <a href="#rfc.xref.Part6.5">3.4</a>, <a href="#rfc.xref.Part6.6">5.2</a>, <a href="#rfc.xref.Part6.7">5.7</a>, <a href="#rfc.xref.Part6.8">5.7</a>, <a href="#rfc.xref.Part6.9">6.1</a>, <a href="#Part6"><b>10.1</b></a><ul>
    37613725                        <li><em>Section 2</em>&nbsp;&nbsp;<a href="#rfc.xref.Part6.3">2.5</a></li>
    37623726                        <li><em>Section 3</em>&nbsp;&nbsp;<a href="#rfc.xref.Part6.5">3.4</a></li>
    37633727                        <li><em>Section 7.2</em>&nbsp;&nbsp;<a href="#rfc.xref.Part6.4">2.8.2</a>, <a href="#rfc.xref.Part6.9">6.1</a></li>
    3764                         <li><em>Section 7.3</em>&nbsp;&nbsp;<a href="#rfc.xref.Part6.7">5.6.2</a></li>
    3765                         <li><em>Section 7.6</em>&nbsp;&nbsp;<a href="#rfc.xref.Part6.2">2.4</a>, <a href="#rfc.xref.Part6.8">5.6.2</a></li>
     3728                        <li><em>Section 7.3</em>&nbsp;&nbsp;<a href="#rfc.xref.Part6.7">5.7</a></li>
     3729                        <li><em>Section 7.6</em>&nbsp;&nbsp;<a href="#rfc.xref.Part6.2">2.4</a>, <a href="#rfc.xref.Part6.8">5.7</a></li>
    37663730                     </ul>
    37673731                  </li>
    3768                   <li><em>Part7</em>&nbsp;&nbsp;<a href="#rfc.xref.Part7.1">1</a>, <a href="#rfc.xref.Part7.2">5.6.1</a>, <a href="#rfc.xref.Part7.3">5.6.1</a>, <a href="#Part7"><b>10.1</b></a><ul>
    3769                         <li><em>Section 4.2</em>&nbsp;&nbsp;<a href="#rfc.xref.Part7.2">5.6.1</a></li>
    3770                         <li><em>Section 4.3</em>&nbsp;&nbsp;<a href="#rfc.xref.Part7.3">5.6.1</a></li>
    3771                      </ul>
    3772                   </li>
     3732                  <li><em>Part7</em>&nbsp;&nbsp;<a href="#rfc.xref.Part7.1">1</a>, <a href="#Part7"><b>10.1</b></a></li>
    37733733                  <li>proxy&nbsp;&nbsp;<a href="#rfc.iref.p.1"><b>2.4</b></a></li>
    37743734               </ul>
    … …  
    37913751                  </li>
    37923752                  <li><em>RFC2047</em>&nbsp;&nbsp;<a href="#rfc.xref.RFC2047.1">3.2.2</a>, <a href="#RFC2047"><b>10.2</b></a></li>
    3793                   <li><em>RFC2068</em>&nbsp;&nbsp;<a href="#rfc.xref.RFC2068.1">1</a>, <a href="#rfc.xref.RFC2068.2">2.7</a>, <a href="#rfc.xref.RFC2068.3">5.6.1</a>, <a href="#rfc.xref.RFC2068.4">6.3.2.1</a>, <a href="#rfc.xref.RFC2068.5">6.4.3</a>, <a href="#rfc.xref.RFC2068.6">9</a>, <a href="#RFC2068"><b>10.2</b></a>, <a href="#rfc.xref.RFC2068.7">A.1.2</a><ul>
    3794                         <li><em>Section 19.7.1.1</em>&nbsp;&nbsp;<a href="#rfc.xref.RFC2068.3">5.6.1</a></li>
    3795                         <li><em>Section 19.7.1</em>&nbsp;&nbsp;<a href="#rfc.xref.RFC2068.4">6.3.2.1</a>, <a href="#rfc.xref.RFC2068.7">A.1.2</a></li>
     3753                  <li><em>RFC2068</em>&nbsp;&nbsp;<a href="#rfc.xref.RFC2068.1">1</a>, <a href="#rfc.xref.RFC2068.2">2.7</a>, <a href="#rfc.xref.RFC2068.3">6.3.2.1</a>, <a href="#rfc.xref.RFC2068.4">6.4.3</a>, <a href="#rfc.xref.RFC2068.5">9</a>, <a href="#RFC2068"><b>10.2</b></a>, <a href="#rfc.xref.RFC2068.6">A.1.2</a><ul>
     3754                        <li><em>Section 19.7.1</em>&nbsp;&nbsp;<a href="#rfc.xref.RFC2068.3">6.3.2.1</a>, <a href="#rfc.xref.RFC2068.6">A.1.2</a></li>
    37963755                     </ul>
    37973756                  </li>
    37983757                  <li><em>RFC2119</em>&nbsp;&nbsp;<a href="#rfc.xref.RFC2119.1">1.1</a>, <a href="#RFC2119"><b>10.1</b></a></li>
    37993758                  <li><em>RFC2145</em>&nbsp;&nbsp;<a href="#rfc.xref.RFC2145.1">1</a>, <a href="#rfc.xref.RFC2145.2">9</a>, <a href="#RFC2145"><b>10.2</b></a></li>
    3800                   <li><em>RFC2616</em>&nbsp;&nbsp;<a href="#rfc.xref.RFC2616.1">1</a>, <a href="#rfc.xref.RFC2616.2">2.7</a>, <a href="#rfc.xref.RFC2616.3">5.6.2</a>, <a href="#rfc.xref.RFC2616.4">9</a>, <a href="#rfc.xref.RFC2616.5">9</a>, <a href="#RFC2616"><b>10.2</b></a>, <a href="#rfc.xref.RFC2616.6">D.1</a><ul>
    3801                         <li><em>Section 14.15</em>&nbsp;&nbsp;<a href="#rfc.xref.RFC2616.3">5.6.2</a></li>
     3759                  <li><em>RFC2616</em>&nbsp;&nbsp;<a href="#rfc.xref.RFC2616.1">1</a>, <a href="#rfc.xref.RFC2616.2">2.7</a>, <a href="#rfc.xref.RFC2616.3">5.7</a>, <a href="#rfc.xref.RFC2616.4">9</a>, <a href="#rfc.xref.RFC2616.5">9</a>, <a href="#RFC2616"><b>10.2</b></a>, <a href="#rfc.xref.RFC2616.6">D.1</a><ul>
     3760                        <li><em>Section 14.15</em>&nbsp;&nbsp;<a href="#rfc.xref.RFC2616.3">5.7</a></li>
    38023761                        <li><em>Section 16</em>&nbsp;&nbsp;<a href="#rfc.xref.RFC2616.5">9</a></li>
    38033762                     </ul>
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