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Timestamp:
Sep 15, 2012, 11:06:23 PM (7 years ago)
Author:
fielding@…
Message:

(editorial) description of resource is now in p2, remove redundant xrefs to 3986

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

    r1894 r1899  
    10331033      <div id="rfc.iref.r.5"></div>
    10341034      <h2 id="rfc.section.2.7"><a href="#rfc.section.2.7">2.7</a>&nbsp;<a id="uri" href="#uri">Uniform Resource Identifiers</a></h2>
    1035       <p id="rfc.section.2.7.p.1">Uniform Resource Identifiers (URIs) <a href="#RFC3986" id="rfc.xref.RFC3986.2"><cite title="Uniform Resource Identifier (URI): Generic Syntax">[RFC3986]</cite></a> are used throughout HTTP as the means for identifying resources. URI references are used to target requests, indicate redirects,
    1036          and define relationships. HTTP does not limit what a resource might be; it merely defines an interface that can be used to
    1037          interact with a resource via HTTP. More information on the scope of URIs and resources can be found in <a href="#RFC3986" id="rfc.xref.RFC3986.3"><cite title="Uniform Resource Identifier (URI): Generic Syntax">[RFC3986]</cite></a>.
     1035      <p id="rfc.section.2.7.p.1">Uniform Resource Identifiers (URIs) <a href="#RFC3986" id="rfc.xref.RFC3986.2"><cite title="Uniform Resource Identifier (URI): Generic Syntax">[RFC3986]</cite></a> are used throughout HTTP as the means for identifying resources (<a href="p2-semantics.html#resource" title="Resource">Section 2</a> of <a href="#Part2" id="rfc.xref.Part2.4"><cite title="Hypertext Transfer Protocol (HTTP/1.1): Semantics and Content">[Part2]</cite></a>). URI references are used to target requests, indicate redirects, and define relationships.
    10381036      </p>
    10391037      <p id="rfc.section.2.7.p.2">This specification adopts the definitions of "URI-reference", "absolute-URI", "relative-part", "port", "host", "path-abempty",
    1040          "path-absolute", "query", and "authority" from the URI generic syntax <a href="#RFC3986" id="rfc.xref.RFC3986.4"><cite title="Uniform Resource Identifier (URI): Generic Syntax">[RFC3986]</cite></a>. In addition, we define a partial-URI rule for protocol elements that allow a relative URI but not a fragment.
    1041       </p>
    1042       <div id="rfc.figure.u.7"></div><pre class="inline"><span id="rfc.iref.g.16"></span><span id="rfc.iref.g.17"></span><span id="rfc.iref.g.18"></span><span id="rfc.iref.g.19"></span><span id="rfc.iref.g.20"></span><span id="rfc.iref.g.21"></span><span id="rfc.iref.g.22"></span><span id="rfc.iref.g.23"></span>  <a href="#uri" class="smpl">URI-reference</a> = &lt;URI-reference, defined in <a href="#RFC3986" id="rfc.xref.RFC3986.5"><cite title="Uniform Resource Identifier (URI): Generic Syntax">[RFC3986]</cite></a>, <a href="http://tools.ietf.org/html/rfc3986#section-4.1">Section 4.1</a>&gt;
    1043   <a href="#uri" class="smpl">absolute-URI</a>  = &lt;absolute-URI, defined in <a href="#RFC3986" id="rfc.xref.RFC3986.6"><cite title="Uniform Resource Identifier (URI): Generic Syntax">[RFC3986]</cite></a>, <a href="http://tools.ietf.org/html/rfc3986#section-4.3">Section 4.3</a>&gt;
    1044   <a href="#uri" class="smpl">relative-part</a> = &lt;relative-part, defined in <a href="#RFC3986" id="rfc.xref.RFC3986.7"><cite title="Uniform Resource Identifier (URI): Generic Syntax">[RFC3986]</cite></a>, <a href="http://tools.ietf.org/html/rfc3986#section-4.2">Section 4.2</a>&gt;
    1045   <a href="#uri" class="smpl">authority</a>     = &lt;authority, defined in <a href="#RFC3986" id="rfc.xref.RFC3986.8"><cite title="Uniform Resource Identifier (URI): Generic Syntax">[RFC3986]</cite></a>, <a href="http://tools.ietf.org/html/rfc3986#section-3.2">Section 3.2</a>&gt;
    1046   <a href="#uri" class="smpl">path-abempty</a>  = &lt;path-abempty, defined in <a href="#RFC3986" id="rfc.xref.RFC3986.9"><cite title="Uniform Resource Identifier (URI): Generic Syntax">[RFC3986]</cite></a>, <a href="http://tools.ietf.org/html/rfc3986#section-3.3">Section 3.3</a>&gt;
    1047   <a href="#uri" class="smpl">path-absolute</a> = &lt;path-absolute, defined in <a href="#RFC3986" id="rfc.xref.RFC3986.10"><cite title="Uniform Resource Identifier (URI): Generic Syntax">[RFC3986]</cite></a>, <a href="http://tools.ietf.org/html/rfc3986#section-3.3">Section 3.3</a>&gt;
    1048   <a href="#uri" class="smpl">port</a>          = &lt;port, defined in <a href="#RFC3986" id="rfc.xref.RFC3986.11"><cite title="Uniform Resource Identifier (URI): Generic Syntax">[RFC3986]</cite></a>, <a href="http://tools.ietf.org/html/rfc3986#section-3.2.3">Section 3.2.3</a>&gt;
    1049   <a href="#uri" class="smpl">query</a>         = &lt;query, defined in <a href="#RFC3986" id="rfc.xref.RFC3986.12"><cite title="Uniform Resource Identifier (URI): Generic Syntax">[RFC3986]</cite></a>, <a href="http://tools.ietf.org/html/rfc3986#section-3.4">Section 3.4</a>&gt;
    1050   <a href="#uri" class="smpl">uri-host</a>      = &lt;host, defined in <a href="#RFC3986" id="rfc.xref.RFC3986.13"><cite title="Uniform Resource Identifier (URI): Generic Syntax">[RFC3986]</cite></a>, <a href="http://tools.ietf.org/html/rfc3986#section-3.2.2">Section 3.2.2</a>&gt;
     1038         "path-absolute", "query", and "authority" from the URI generic syntax. In addition, we define a partial-URI rule for protocol
     1039         elements that allow a relative URI but not a fragment.
     1040      </p>
     1041      <div id="rfc.figure.u.7"></div><pre class="inline"><span id="rfc.iref.g.16"></span><span id="rfc.iref.g.17"></span><span id="rfc.iref.g.18"></span><span id="rfc.iref.g.19"></span><span id="rfc.iref.g.20"></span><span id="rfc.iref.g.21"></span><span id="rfc.iref.g.22"></span><span id="rfc.iref.g.23"></span>  <a href="#uri" class="smpl">URI-reference</a> = &lt;URI-reference, defined in <a href="#RFC3986" id="rfc.xref.RFC3986.3"><cite title="Uniform Resource Identifier (URI): Generic Syntax">[RFC3986]</cite></a>, <a href="http://tools.ietf.org/html/rfc3986#section-4.1">Section 4.1</a>&gt;
     1042  <a href="#uri" class="smpl">absolute-URI</a>  = &lt;absolute-URI, defined in <a href="#RFC3986" id="rfc.xref.RFC3986.4"><cite title="Uniform Resource Identifier (URI): Generic Syntax">[RFC3986]</cite></a>, <a href="http://tools.ietf.org/html/rfc3986#section-4.3">Section 4.3</a>&gt;
     1043  <a href="#uri" class="smpl">relative-part</a> = &lt;relative-part, defined in <a href="#RFC3986" id="rfc.xref.RFC3986.5"><cite title="Uniform Resource Identifier (URI): Generic Syntax">[RFC3986]</cite></a>, <a href="http://tools.ietf.org/html/rfc3986#section-4.2">Section 4.2</a>&gt;
     1044  <a href="#uri" class="smpl">authority</a>     = &lt;authority, defined in <a href="#RFC3986" id="rfc.xref.RFC3986.6"><cite title="Uniform Resource Identifier (URI): Generic Syntax">[RFC3986]</cite></a>, <a href="http://tools.ietf.org/html/rfc3986#section-3.2">Section 3.2</a>&gt;
     1045  <a href="#uri" class="smpl">path-abempty</a>  = &lt;path-abempty, defined in <a href="#RFC3986" id="rfc.xref.RFC3986.7"><cite title="Uniform Resource Identifier (URI): Generic Syntax">[RFC3986]</cite></a>, <a href="http://tools.ietf.org/html/rfc3986#section-3.3">Section 3.3</a>&gt;
     1046  <a href="#uri" class="smpl">path-absolute</a> = &lt;path-absolute, defined in <a href="#RFC3986" id="rfc.xref.RFC3986.8"><cite title="Uniform Resource Identifier (URI): Generic Syntax">[RFC3986]</cite></a>, <a href="http://tools.ietf.org/html/rfc3986#section-3.3">Section 3.3</a>&gt;
     1047  <a href="#uri" class="smpl">port</a>          = &lt;port, defined in <a href="#RFC3986" id="rfc.xref.RFC3986.9"><cite title="Uniform Resource Identifier (URI): Generic Syntax">[RFC3986]</cite></a>, <a href="http://tools.ietf.org/html/rfc3986#section-3.2.3">Section 3.2.3</a>&gt;
     1048  <a href="#uri" class="smpl">query</a>         = &lt;query, defined in <a href="#RFC3986" id="rfc.xref.RFC3986.10"><cite title="Uniform Resource Identifier (URI): Generic Syntax">[RFC3986]</cite></a>, <a href="http://tools.ietf.org/html/rfc3986#section-3.4">Section 3.4</a>&gt;
     1049  <a href="#uri" class="smpl">uri-host</a>      = &lt;host, defined in <a href="#RFC3986" id="rfc.xref.RFC3986.11"><cite title="Uniform Resource Identifier (URI): Generic Syntax">[RFC3986]</cite></a>, <a href="http://tools.ietf.org/html/rfc3986#section-3.2.2">Section 3.2.2</a>&gt;
    10511050 
    10521051  <a href="#uri" class="smpl">partial-URI</a>   = relative-part [ "?" query ]
    … …  
    10631062      </p>
    10641063      <div id="rfc.figure.u.8"></div><pre class="inline"><span id="rfc.iref.g.24"></span>  <a href="#http.uri" class="smpl">http-URI</a> = "http:" "//" <a href="#uri" class="smpl">authority</a> <a href="#uri" class="smpl">path-abempty</a> [ "?" <a href="#uri" class="smpl">query</a> ]
    1065 </pre><p id="rfc.section.2.7.1.p.3">The HTTP origin server is identified by the generic syntax's <a href="#uri" class="smpl">authority</a> component, which includes a host identifier and optional TCP port (<a href="#RFC3986" id="rfc.xref.RFC3986.14"><cite title="Uniform Resource Identifier (URI): Generic Syntax">[RFC3986]</cite></a>, <a href="http://tools.ietf.org/html/rfc3986#section-3.2.2">Section 3.2.2</a>). The remainder of the URI, consisting of both the hierarchical path component and optional query component, serves as an
     1064</pre><p id="rfc.section.2.7.1.p.3">The HTTP origin server is identified by the generic syntax's <a href="#uri" class="smpl">authority</a> component, which includes a host identifier and optional TCP port (<a href="#RFC3986" id="rfc.xref.RFC3986.12"><cite title="Uniform Resource Identifier (URI): Generic Syntax">[RFC3986]</cite></a>, <a href="http://tools.ietf.org/html/rfc3986#section-3.2.2">Section 3.2.2</a>). The remainder of the URI, consisting of both the hierarchical path component and optional query component, serves as an
    10661065         identifier for a potential resource within that origin server's name space.
    10671066      </p>
    … …  
    10781077      </p>
    10791078      <p id="rfc.section.2.7.1.p.6">When an "http" URI is used within a context that calls for access to the indicated resource, a client <em class="bcp14">MAY</em> attempt access by resolving the host to an IP address, establishing a TCP connection to that address on the indicated port,
    1080          and sending an HTTP request message (<a href="#http.message" title="Message Format">Section&nbsp;3</a>) containing the URI's identifying data (<a href="#message.routing" title="Message Routing">Section&nbsp;5</a>) to the server. If the server responds to that request with a non-interim HTTP response message, as described in <a href="p2-semantics.html#status.codes" title="Response Status Codes">Section 7</a> of <a href="#Part2" id="rfc.xref.Part2.4"><cite title="Hypertext Transfer Protocol (HTTP/1.1): Semantics and Content">[Part2]</cite></a>, then that response is considered an authoritative answer to the client's request.
     1079         and sending an HTTP request message (<a href="#http.message" title="Message Format">Section&nbsp;3</a>) containing the URI's identifying data (<a href="#message.routing" title="Message Routing">Section&nbsp;5</a>) to the server. If the server responds to that request with a non-interim HTTP response message, as described in <a href="p2-semantics.html#status.codes" title="Response Status Codes">Section 7</a> of <a href="#Part2" id="rfc.xref.Part2.5"><cite title="Hypertext Transfer Protocol (HTTP/1.1): Semantics and Content">[Part2]</cite></a>, then that response is considered an authoritative answer to the client's request.
    10811080      </p>
    10821081      <p id="rfc.section.2.7.1.p.7">Although HTTP is independent of the transport protocol, the "http" scheme is specific to TCP-based services because the name
    … …  
    10861085         — it is only the authoritative interface used for mapping the namespace that is specific to TCP.
    10871086      </p>
    1088       <p id="rfc.section.2.7.1.p.8">The URI generic syntax for authority also includes a deprecated userinfo subcomponent (<a href="#RFC3986" id="rfc.xref.RFC3986.15"><cite title="Uniform Resource Identifier (URI): Generic Syntax">[RFC3986]</cite></a>, <a href="http://tools.ietf.org/html/rfc3986#section-3.2.1">Section 3.2.1</a>) for including user authentication information in the URI. Some implementations make use of the userinfo component for internal
     1087      <p id="rfc.section.2.7.1.p.8">The URI generic syntax for authority also includes a deprecated userinfo subcomponent (<a href="#RFC3986" id="rfc.xref.RFC3986.13"><cite title="Uniform Resource Identifier (URI): Generic Syntax">[RFC3986]</cite></a>, <a href="http://tools.ietf.org/html/rfc3986#section-3.2.1">Section 3.2.1</a>) for including user authentication information in the URI. Some implementations make use of the userinfo component for internal
    10891088         configuration of authentication information, such as within command invocation options, configuration files, or bookmark lists,
    10901089         even though such usage might expose a user identifier or password. Senders <em class="bcp14">MUST NOT</em> include a userinfo subcomponent (and its "@" delimiter) when transmitting an "http" URI in a message. Recipients of HTTP messages
    … …  
    11141113      <h3 id="rfc.section.2.7.3"><a href="#rfc.section.2.7.3">2.7.3</a>&nbsp;<a id="uri.comparison" href="#uri.comparison">http and https URI Normalization and Comparison</a></h3>
    11151114      <p id="rfc.section.2.7.3.p.1">Since the "http" and "https" schemes conform to the URI generic syntax, such URIs are normalized and compared according to
    1116          the algorithm defined in <a href="#RFC3986" id="rfc.xref.RFC3986.16"><cite title="Uniform Resource Identifier (URI): Generic Syntax">[RFC3986]</cite></a>, <a href="http://tools.ietf.org/html/rfc3986#section-6">Section 6</a>, using the defaults described above for each scheme.
     1115         the algorithm defined in <a href="#RFC3986" id="rfc.xref.RFC3986.14"><cite title="Uniform Resource Identifier (URI): Generic Syntax">[RFC3986]</cite></a>, <a href="http://tools.ietf.org/html/rfc3986#section-6">Section 6</a>, using the defaults described above for each scheme.
    11171116      </p>
    11181117      <p id="rfc.section.2.7.3.p.2">If the port is equal to the default port for a scheme, the normal form is to elide the port subcomponent. Likewise, an empty
    11191118         path component is equivalent to an absolute path of "/", so the normal form is to provide a path of "/" instead. The scheme
    11201119         and host are case-insensitive and normally provided in lowercase; all other components are compared in a case-sensitive manner.
    1121          Characters other than those in the "reserved" set are equivalent to their percent-encoded octets (see <a href="#RFC3986" id="rfc.xref.RFC3986.17"><cite title="Uniform Resource Identifier (URI): Generic Syntax">[RFC3986]</cite></a>, <a href="http://tools.ietf.org/html/rfc3986#section-2.1">Section 2.1</a>): the normal form is to not encode them.
     1120         Characters other than those in the "reserved" set are equivalent to their percent-encoded octets (see <a href="#RFC3986" id="rfc.xref.RFC3986.15"><cite title="Uniform Resource Identifier (URI): Generic Syntax">[RFC3986]</cite></a>, <a href="http://tools.ietf.org/html/rfc3986#section-2.1">Section 2.1</a>): the normal form is to not encode them.
    11221121      </p>
    11231122      <p id="rfc.section.2.7.3.p.3">For example, the following three URIs are equivalent:</p>
    … …  
    11761175      </div>
    11771176      <div id="rfc.figure.u.14"></div><pre class="inline"><span id="rfc.iref.g.29"></span>  <a href="#method" class="smpl">method</a>         = <a href="#rule.token.separators" class="smpl">token</a>
    1178 </pre><p id="rfc.section.3.1.1.p.6">The methods defined by this specification can be found in <a href="p2-semantics.html#methods" title="Request Methods">Section 5</a> of <a href="#Part2" id="rfc.xref.Part2.5"><cite title="Hypertext Transfer Protocol (HTTP/1.1): Semantics and Content">[Part2]</cite></a>, along with information regarding the HTTP method registry and considerations for defining new methods.
     1177</pre><p id="rfc.section.3.1.1.p.6">The methods defined by this specification can be found in <a href="p2-semantics.html#methods" title="Request Methods">Section 5</a> of <a href="#Part2" id="rfc.xref.Part2.6"><cite title="Hypertext Transfer Protocol (HTTP/1.1): Semantics and Content">[Part2]</cite></a>, along with information regarding the HTTP method registry and considerations for defining new methods.
    11791178      </p>
    11801179      <div id="rfc.iref.r.6"></div>
    … …  
    11891188      </p>
    11901189      <p id="rfc.section.3.1.1.p.10">HTTP does not place a pre-defined limit on the length of a request-line. A server that receives a method longer than any that
    1191          it implements <em class="bcp14">SHOULD</em> respond with either a <a href="p2-semantics.html#status.405" class="smpl">405 (Method Not Allowed)</a>, if it is an origin server, or a <a href="p2-semantics.html#status.501" class="smpl">501 (Not Implemented)</a> status code. A server <em class="bcp14">MUST</em> be prepared to receive URIs of unbounded length and respond with the <a href="p2-semantics.html#status.414" class="smpl">414 (URI Too Long)</a> status code if the received request-target would be longer than the server wishes to handle (see <a href="p2-semantics.html#status.414" title="414 URI Too Long">Section 7.5.12</a> of <a href="#Part2" id="rfc.xref.Part2.6"><cite title="Hypertext Transfer Protocol (HTTP/1.1): Semantics and Content">[Part2]</cite></a>).
     1190         it implements <em class="bcp14">SHOULD</em> respond with either a <a href="p2-semantics.html#status.405" class="smpl">405 (Method Not Allowed)</a>, if it is an origin server, or a <a href="p2-semantics.html#status.501" class="smpl">501 (Not Implemented)</a> status code. A server <em class="bcp14">MUST</em> be prepared to receive URIs of unbounded length and respond with the <a href="p2-semantics.html#status.414" class="smpl">414 (URI Too Long)</a> status code if the received request-target would be longer than the server wishes to handle (see <a href="p2-semantics.html#status.414" title="414 URI Too Long">Section 7.5.12</a> of <a href="#Part2" id="rfc.xref.Part2.7"><cite title="Hypertext Transfer Protocol (HTTP/1.1): Semantics and Content">[Part2]</cite></a>).
    11921191      </p>
    11931192      <p id="rfc.section.3.1.1.p.11">Various ad-hoc limitations on request-line length are found in practice. It is <em class="bcp14">RECOMMENDED</em> that all HTTP senders and recipients support, at a minimum, request-line lengths of up to 8000 octets.
    … …  
    12021201      <p id="rfc.section.3.1.2.p.4">The status-code element is a 3-digit integer code describing the result of the server's attempt to understand and satisfy
    12031202         the client's corresponding request. The rest of the response message is to be interpreted in light of the semantics defined
    1204          for that status code. See <a href="p2-semantics.html#status.codes" title="Response Status Codes">Section 7</a> of <a href="#Part2" id="rfc.xref.Part2.7"><cite title="Hypertext Transfer Protocol (HTTP/1.1): Semantics and Content">[Part2]</cite></a> for information about the semantics of status codes, including the classes of status code (indicated by the first digit),
     1203         for that status code. See <a href="p2-semantics.html#status.codes" title="Response Status Codes">Section 7</a> of <a href="#Part2" id="rfc.xref.Part2.8"><cite title="Hypertext Transfer Protocol (HTTP/1.1): Semantics and Content">[Part2]</cite></a> for information about the semantics of status codes, including the classes of status code (indicated by the first digit),
    12051204         the status codes defined by this specification, considerations for the definition of new status codes, and the IANA registry.
    12061205      </p>
    … …  
    12231222                 ; see <a href="#field.parsing" title="Field Parsing">Section&nbsp;3.2.2</a>
    12241223</pre><p id="rfc.section.3.2.p.3">The field-name token labels the corresponding field-value as having the semantics defined by that header field. For example,
    1225          the <a href="p2-semantics.html#header.date" class="smpl">Date</a> header field is defined in <a href="p2-semantics.html#header.date" title="Date">Section 8.2.1</a> of <a href="#Part2" id="rfc.xref.Part2.8"><cite title="Hypertext Transfer Protocol (HTTP/1.1): Semantics and Content">[Part2]</cite></a> as containing the origination timestamp for the message in which it appears.
     1224         the <a href="p2-semantics.html#header.date" class="smpl">Date</a> header field is defined in <a href="p2-semantics.html#header.date" title="Date">Section 8.2.1</a> of <a href="#Part2" id="rfc.xref.Part2.9"><cite title="Hypertext Transfer Protocol (HTTP/1.1): Semantics and Content">[Part2]</cite></a> as containing the origination timestamp for the message in which it appears.
    12261225      </p>
    12271226      <p id="rfc.section.3.2.p.4">HTTP header fields are fully extensible: there is no limit on the introduction of new field names, each presumably defining
    … …  
    12311230         them.
    12321231      </p>
    1233       <p id="rfc.section.3.2.p.5">New HTTP header fields <em class="bcp14">SHOULD</em> be registered with IANA in the Message Header Field Registry, as described in <a href="p2-semantics.html#header.field.registry" title="Header Field Registry">Section 10.3</a> of <a href="#Part2" id="rfc.xref.Part2.9"><cite title="Hypertext Transfer Protocol (HTTP/1.1): Semantics and Content">[Part2]</cite></a>. Unrecognized header fields <em class="bcp14">MUST</em> be forwarded by a proxy unless the field-name is listed in the <a href="#header.connection" class="smpl">Connection</a> header field (<a href="#header.connection" id="rfc.xref.header.connection.3" title="Connection">Section&nbsp;6.1</a>) or the proxy is specifically configured to block or otherwise transform such fields. Unrecognized header fields <em class="bcp14">SHOULD</em> be ignored by other recipients.
     1232      <p id="rfc.section.3.2.p.5">New HTTP header fields <em class="bcp14">SHOULD</em> be registered with IANA in the Message Header Field Registry, as described in <a href="p2-semantics.html#header.field.registry" title="Header Field Registry">Section 10.3</a> of <a href="#Part2" id="rfc.xref.Part2.10"><cite title="Hypertext Transfer Protocol (HTTP/1.1): Semantics and Content">[Part2]</cite></a>. Unrecognized header fields <em class="bcp14">MUST</em> be forwarded by a proxy unless the field-name is listed in the <a href="#header.connection" class="smpl">Connection</a> header field (<a href="#header.connection" id="rfc.xref.header.connection.3" title="Connection">Section&nbsp;6.1</a>) or the proxy is specifically configured to block or otherwise transform such fields. Unrecognized header fields <em class="bcp14">SHOULD</em> be ignored by other recipients.
    12341233      </p>
    12351234      <p id="rfc.section.3.2.p.6">The order in which header fields with differing field names are received is not significant. However, it is "good practice"
    … …  
    13821381      <p id="rfc.section.3.3.1.p.6">If more than one Transfer-Encoding header field is present in a message, the multiple field-values <em class="bcp14">MUST</em> be combined into one field-value, according to the algorithm defined in <a href="#header.fields" title="Header Fields">Section&nbsp;3.2</a>, before determining the message body length.
    13831382      </p>
    1384       <p id="rfc.section.3.3.1.p.7">Unlike <a href="p2-semantics.html#header.content-encoding" class="smpl">Content-Encoding</a> (<a href="p2-semantics.html#content.codings" title="Content Codings">Section 9.4</a> of <a href="#Part2" id="rfc.xref.Part2.10"><cite title="Hypertext Transfer Protocol (HTTP/1.1): Semantics and Content">[Part2]</cite></a>), Transfer-Encoding is a property of the message, not of the payload, and thus <em class="bcp14">MAY</em> be added or removed by any implementation along the request/response chain. Additional information about the encoding parameters <em class="bcp14">MAY</em> be provided by other header fields not defined by this specification.
     1383      <p id="rfc.section.3.3.1.p.7">Unlike <a href="p2-semantics.html#header.content-encoding" class="smpl">Content-Encoding</a> (<a href="p2-semantics.html#content.codings" title="Content Codings">Section 9.4</a> of <a href="#Part2" id="rfc.xref.Part2.11"><cite title="Hypertext Transfer Protocol (HTTP/1.1): Semantics and Content">[Part2]</cite></a>), Transfer-Encoding is a property of the message, not of the payload, and thus <em class="bcp14">MAY</em> be added or removed by any implementation along the request/response chain. Additional information about the encoding parameters <em class="bcp14">MAY</em> be provided by other header fields not defined by this specification.
    13851384      </p>
    13861385      <p id="rfc.section.3.3.1.p.8">Transfer-Encoding <em class="bcp14">MAY</em> be sent in a response to a HEAD request or in a <a href="p4-conditional.html#status.304" class="smpl">304 (Not Modified)</a> response (<a href="p4-conditional.html#status.304" title="304 Not Modified">Section 4.1</a> of <a href="#Part4" id="rfc.xref.Part4.2"><cite title="Hypertext Transfer Protocol (HTTP/1.1): Conditional Requests">[Part4]</cite></a>) to a GET request, neither of which includes a message body, to indicate that the origin server would have applied a transfer
    … …  
    16601659      </p>
    16611660      <p id="rfc.section.4.3.p.7">When multiple transfer-codings are acceptable, the client <em class="bcp14">MAY</em> rank the codings by preference using a case-insensitive "q" parameter (similar to the qvalues used in content negotiation
    1662          fields, <a href="p2-semantics.html#quality.values" title="Quality Values">Section 6.3.1</a> of <a href="#Part2" id="rfc.xref.Part2.11"><cite title="Hypertext Transfer Protocol (HTTP/1.1): Semantics and Content">[Part2]</cite></a>). The rank value is a real number in the range 0 through 1, where 0.001 is the least preferred and 1 is the most preferred;
     1661         fields, <a href="p2-semantics.html#quality.values" title="Quality Values">Section 6.3.1</a> of <a href="#Part2" id="rfc.xref.Part2.12"><cite title="Hypertext Transfer Protocol (HTTP/1.1): Semantics and Content">[Part2]</cite></a>). The rank value is a real number in the range 0 through 1, where 0.001 is the least preferred and 1 is the most preferred;
    16631662         a value of 0 means "not acceptable".
    16641663      </p>
    … …  
    16811680      </p>
    16821681      <p id="rfc.section.5.1.p.2">HTTP communication is initiated by a user agent for some purpose. The purpose is a combination of request semantics, which
    1683          are defined in <a href="#Part2" id="rfc.xref.Part2.12"><cite title="Hypertext Transfer Protocol (HTTP/1.1): Semantics and Content">[Part2]</cite></a>, and a target resource upon which to apply those semantics. A URI reference (<a href="#uri" title="Uniform Resource Identifiers">Section&nbsp;2.7</a>) is typically used as an identifier for the "<dfn>target resource</dfn>", which a user agent would resolve to its absolute form in order to obtain the "<dfn>target URI</dfn>". The target URI excludes the reference's fragment identifier component, if any, since fragment identifiers are reserved
    1684          for client-side processing (<a href="#RFC3986" id="rfc.xref.RFC3986.18"><cite title="Uniform Resource Identifier (URI): Generic Syntax">[RFC3986]</cite></a>, <a href="http://tools.ietf.org/html/rfc3986#section-3.5">Section 3.5</a>).
     1682         are defined in <a href="#Part2" id="rfc.xref.Part2.13"><cite title="Hypertext Transfer Protocol (HTTP/1.1): Semantics and Content">[Part2]</cite></a>, and a target resource upon which to apply those semantics. A URI reference (<a href="#uri" title="Uniform Resource Identifiers">Section&nbsp;2.7</a>) is typically used as an identifier for the "<dfn>target resource</dfn>", which a user agent would resolve to its absolute form in order to obtain the "<dfn>target URI</dfn>". The target URI excludes the reference's fragment identifier component, if any, since fragment identifiers are reserved
     1683         for client-side processing (<a href="#RFC3986" id="rfc.xref.RFC3986.16"><cite title="Uniform Resource Identifier (URI): Generic Syntax">[RFC3986]</cite></a>, <a href="http://tools.ietf.org/html/rfc3986#section-3.5">Section 3.5</a>).
    16851684      </p>
    16861685      <h2 id="rfc.section.5.2"><a href="#rfc.section.5.2">5.2</a>&nbsp;<a id="connecting.inbound" href="#connecting.inbound">Connecting Inbound</a></h2>
    … …  
    17401739      </p>
    17411740      <div id="authority-form">
    1742          <p id="rfc.section.5.3.p.13"><span id="rfc.iref.a.3"></span> The authority-form of request-target is only used for CONNECT requests (<a href="p2-semantics.html#CONNECT" title="CONNECT">Section 5.3.6</a> of <a href="#Part2" id="rfc.xref.Part2.13"><cite title="Hypertext Transfer Protocol (HTTP/1.1): Semantics and Content">[Part2]</cite></a>). When making a CONNECT request to establish a tunnel through one or more proxies, a client <em class="bcp14">MUST</em> send only the target URI's authority component (excluding any userinfo) as the request-target. For example,
     1741         <p id="rfc.section.5.3.p.13"><span id="rfc.iref.a.3"></span> The authority-form of request-target is only used for CONNECT requests (<a href="p2-semantics.html#CONNECT" title="CONNECT">Section 5.3.6</a> of <a href="#Part2" id="rfc.xref.Part2.14"><cite title="Hypertext Transfer Protocol (HTTP/1.1): Semantics and Content">[Part2]</cite></a>). When making a CONNECT request to establish a tunnel through one or more proxies, a client <em class="bcp14">MUST</em> send only the target URI's authority component (excluding any userinfo) as the request-target. For example,
    17431742         </p>
    17441743      </div>
    17451744      <div id="rfc.figure.u.41"></div><pre class="text2">CONNECT www.example.com:80 HTTP/1.1
    17461745</pre><div id="asterisk-form">
    1747          <p id="rfc.section.5.3.p.15"><span id="rfc.iref.a.4"></span> The asterisk-form of request-target is only used for a server-wide OPTIONS request (<a href="p2-semantics.html#OPTIONS" title="OPTIONS">Section 5.3.7</a> of <a href="#Part2" id="rfc.xref.Part2.14"><cite title="Hypertext Transfer Protocol (HTTP/1.1): Semantics and Content">[Part2]</cite></a>). When a client wishes to request OPTIONS for the server as a whole, as opposed to a specific named resource of that server,
     1746         <p id="rfc.section.5.3.p.15"><span id="rfc.iref.a.4"></span> The asterisk-form of request-target is only used for a server-wide OPTIONS request (<a href="p2-semantics.html#OPTIONS" title="OPTIONS">Section 5.3.7</a> of <a href="#Part2" id="rfc.xref.Part2.15"><cite title="Hypertext Transfer Protocol (HTTP/1.1): Semantics and Content">[Part2]</cite></a>). When a client wishes to request OPTIONS for the server as a whole, as opposed to a specific named resource of that server,
    17481747            the client <em class="bcp14">MUST</em> send only "*" (%x2A) as the request-target. For example,
    17491748         </p>
    … …  
    18811880         except as noted above to replace an empty path with "/" or "*".
    18821881      </p>
    1883       <p id="rfc.section.5.8.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="Hypertext Transfer Protocol (HTTP/1.1): Semantics and Content">[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>).
     1882      <p id="rfc.section.5.8.p.3">A non-transforming proxy <em class="bcp14">MUST</em> preserve the message payload (<a href="#Part2" id="rfc.xref.Part2.16"><cite title="Hypertext Transfer Protocol (HTTP/1.1): Semantics and Content">[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>).
    18841883      </p>
    18851884      <p id="rfc.section.5.8.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
    … …  
    18891888      </p>
    18901889      <ul>
    1891          <li><a href="p2-semantics.html#header.allow" class="smpl">Allow</a> (<a href="p2-semantics.html#header.allow" title="Allow">Section 8.4.1</a> of <a href="#Part2" id="rfc.xref.Part2.16"><cite title="Hypertext Transfer Protocol (HTTP/1.1): Semantics and Content">[Part2]</cite></a>)
    1892          </li>
    1893          <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 3.2.4</a> of <a href="#Part2" id="rfc.xref.Part2.17"><cite title="Hypertext Transfer Protocol (HTTP/1.1): Semantics and Content">[Part2]</cite></a>)
     1890         <li><a href="p2-semantics.html#header.allow" class="smpl">Allow</a> (<a href="p2-semantics.html#header.allow" title="Allow">Section 8.4.1</a> of <a href="#Part2" id="rfc.xref.Part2.17"><cite title="Hypertext Transfer Protocol (HTTP/1.1): Semantics and Content">[Part2]</cite></a>)
     1891         </li>
     1892         <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 3.2.4</a> of <a href="#Part2" id="rfc.xref.Part2.18"><cite title="Hypertext Transfer Protocol (HTTP/1.1): Semantics and Content">[Part2]</cite></a>)
    18941893         </li>
    18951894         <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>)
    … …  
    18991898         <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="Hypertext Transfer Protocol (HTTP/1.1): Conditional Requests">[Part4]</cite></a>)
    19001899         </li>
    1901          <li><a href="p2-semantics.html#header.server" class="smpl">Server</a> (<a href="p2-semantics.html#header.server" title="Server">Section 8.4.2</a> of <a href="#Part2" id="rfc.xref.Part2.18"><cite title="Hypertext Transfer Protocol (HTTP/1.1): Semantics and Content">[Part2]</cite></a>)
     1900         <li><a href="p2-semantics.html#header.server" class="smpl">Server</a> (<a href="p2-semantics.html#header.server" title="Server">Section 8.4.2</a> of <a href="#Part2" id="rfc.xref.Part2.19"><cite title="Hypertext Transfer Protocol (HTTP/1.1): Semantics and Content">[Part2]</cite></a>)
    19021901         </li>
    19031902      </ul>
    … …  
    19071906      </p>
    19081907      <ul>
    1909          <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 3.2.2</a> of <a href="#Part2" id="rfc.xref.Part2.19"><cite title="Hypertext Transfer Protocol (HTTP/1.1): Semantics and Content">[Part2]</cite></a>)
     1908         <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 3.2.2</a> of <a href="#Part2" id="rfc.xref.Part2.20"><cite title="Hypertext Transfer Protocol (HTTP/1.1): Semantics and Content">[Part2]</cite></a>)
    19101909         </li>
    19111910         <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="Hypertext Transfer Protocol (HTTP/1.1): Range Requests">[Part5]</cite></a>)
    19121911         </li>
    1913          <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 3.2.1</a> of <a href="#Part2" id="rfc.xref.Part2.20"><cite title="Hypertext Transfer Protocol (HTTP/1.1): Semantics and Content">[Part2]</cite></a>)
     1912         <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 3.2.1</a> of <a href="#Part2" id="rfc.xref.Part2.21"><cite title="Hypertext Transfer Protocol (HTTP/1.1): Semantics and Content">[Part2]</cite></a>)
    19141913         </li>
    19151914      </ul>
    … …  
    19241923      <p id="rfc.section.5.9.p.1">HTTP does not include a request identifier for associating a given request message with its corresponding one or more response
    19251924         messages. Hence, it relies on the order of response arrival to correspond exactly to the order in which requests are made
    1926          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 7.2</a> of <a href="#Part2" id="rfc.xref.Part2.21"><cite title="Hypertext Transfer Protocol (HTTP/1.1): Semantics and Content">[Part2]</cite></a>) precede a final response to the same request.
     1925         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 7.2</a> of <a href="#Part2" id="rfc.xref.Part2.22"><cite title="Hypertext Transfer Protocol (HTTP/1.1): Semantics and Content">[Part2]</cite></a>) precede a final response to the same request.
    19271926      </p>
    19281927      <p id="rfc.section.5.9.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.
    … …  
    20452044      <p id="rfc.section.6.2.2.1.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.
    20462045      </p>
    2047       <p id="rfc.section.6.2.2.1.p.3">Clients <em class="bcp14">SHOULD NOT</em> pipeline requests using non-idempotent request methods or non-idempotent sequences of request methods (see <a href="p2-semantics.html#idempotent.methods" title="Idempotent Methods">Section 5.2.2</a> of <a href="#Part2" id="rfc.xref.Part2.22"><cite title="Hypertext Transfer Protocol (HTTP/1.1): Semantics and Content">[Part2]</cite></a>). Otherwise, a premature termination of the transport connection could lead to indeterminate results. A client wishing to
     2046      <p id="rfc.section.6.2.2.1.p.3">Clients <em class="bcp14">SHOULD NOT</em> pipeline requests using non-idempotent request methods or non-idempotent sequences of request methods (see <a href="p2-semantics.html#idempotent.methods" title="Idempotent Methods">Section 5.2.2</a> of <a href="#Part2" id="rfc.xref.Part2.23"><cite title="Hypertext Transfer Protocol (HTTP/1.1): Semantics and Content">[Part2]</cite></a>). Otherwise, a premature termination of the transport connection could lead to indeterminate results. A client wishing to
    20482047         send a non-idempotent request <em class="bcp14">SHOULD</em> wait to send that request until it has received the response status line for the previous request.
    20492048      </p>
    20502049      <h4 id="rfc.section.6.2.2.2"><a href="#rfc.section.6.2.2.2">6.2.2.2</a>&nbsp;<a id="persistent.retrying.requests" href="#persistent.retrying.requests">Retrying Requests</a></h4>
    20512050      <p id="rfc.section.6.2.2.2.p.1">Senders can close the transport connection at any time. Therefore, clients, servers, and proxies <em class="bcp14">MUST</em> be able to recover from asynchronous close events. Client software <em class="bcp14">MAY</em> reopen the transport connection and retransmit the aborted sequence of requests without user interaction so long as the request
    2052          sequence is idempotent (see <a href="p2-semantics.html#idempotent.methods" title="Idempotent Methods">Section 5.2.2</a> of <a href="#Part2" id="rfc.xref.Part2.23"><cite title="Hypertext Transfer Protocol (HTTP/1.1): Semantics and Content">[Part2]</cite></a>). Non-idempotent request 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
     2051         sequence is idempotent (see <a href="p2-semantics.html#idempotent.methods" title="Idempotent Methods">Section 5.2.2</a> of <a href="#Part2" id="rfc.xref.Part2.24"><cite title="Hypertext Transfer Protocol (HTTP/1.1): Semantics and Content">[Part2]</cite></a>). Non-idempotent request 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
    20532052         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.
    20542053      </p>
    … …  
    21432142      </p>
    21442143      <p id="rfc.section.6.3.p.9">The Upgrade header field only applies to switching application-level protocols on the existing connection; it cannot be used
    2145          to switch to a protocol on a different connection. For that purpose, it is more appropriate to use a <a href="p2-semantics.html#status.3xx" class="smpl">3xx (Redirection)</a> response (<a href="p2-semantics.html#status.3xx" title="Redirection 3xx">Section 7.4</a> of <a href="#Part2" id="rfc.xref.Part2.24"><cite title="Hypertext Transfer Protocol (HTTP/1.1): Semantics and Content">[Part2]</cite></a>).
     2144         to switch to a protocol on a different connection. For that purpose, it is more appropriate to use a <a href="p2-semantics.html#status.3xx" class="smpl">3xx (Redirection)</a> response (<a href="p2-semantics.html#status.3xx" title="Redirection 3xx">Section 7.4</a> of <a href="#Part2" id="rfc.xref.Part2.25"><cite title="Hypertext Transfer Protocol (HTTP/1.1): Semantics and Content">[Part2]</cite></a>).
    21462145      </p>
    21472146      <p id="rfc.section.6.3.p.10">This specification only defines the protocol name "HTTP" for use by the family of Hypertext Transfer Protocols, as defined
    … …  
    24042403         <li>Pointer to specification text</li>
    24052404      </ul>
    2406       <p id="rfc.section.7.4.p.3">Names of transfer codings <em class="bcp14">MUST NOT</em> overlap with names of content codings (<a href="p2-semantics.html#content.codings" title="Content Codings">Section 9.4</a> of <a href="#Part2" id="rfc.xref.Part2.25"><cite title="Hypertext Transfer Protocol (HTTP/1.1): Semantics and Content">[Part2]</cite></a>) unless the encoding transformation is identical, as is the case for the compression codings defined in <a href="#compression.codings" title="Compression Codings">Section&nbsp;4.2</a>.
     2405      <p id="rfc.section.7.4.p.3">Names of transfer codings <em class="bcp14">MUST NOT</em> overlap with names of content codings (<a href="p2-semantics.html#content.codings" title="Content Codings">Section 9.4</a> of <a href="#Part2" id="rfc.xref.Part2.26"><cite title="Hypertext Transfer Protocol (HTTP/1.1): Semantics and Content">[Part2]</cite></a>) unless the encoding transformation is identical, as is the case for the compression codings defined in <a href="#compression.codings" title="Compression Codings">Section&nbsp;4.2</a>.
    24072406      </p>
    24082407      <p id="rfc.section.7.4.p.4">Values to be added to this name space require IETF Review (see <a href="http://tools.ietf.org/html/rfc5226#section-4.1">Section 4.1</a> of <a href="#RFC5226" id="rfc.xref.RFC5226.1"><cite title="Guidelines for Writing an IANA Considerations Section in RFCs">[RFC5226]</cite></a>), and <em class="bcp14">MUST</em> conform to the purpose of transfer coding defined in this section. Use of program names for the identification of encoding
    … …  
    25592558         that most implementations will choose substantially higher limits.
    25602559      </p>
    2561       <p id="rfc.section.8.6.p.3">This specification also provides a way for servers to reject messages that have request-targets that are too long (<a href="p2-semantics.html#status.414" title="414 URI Too Long">Section 7.5.12</a> of <a href="#Part2" id="rfc.xref.Part2.26"><cite title="Hypertext Transfer Protocol (HTTP/1.1): Semantics and Content">[Part2]</cite></a>) or request entities that are too large (<a href="p2-semantics.html#status.4xx" title="Client Error 4xx">Section 7.5</a> of <a href="#Part2" id="rfc.xref.Part2.27"><cite title="Hypertext Transfer Protocol (HTTP/1.1): Semantics and Content">[Part2]</cite></a>).
     2560      <p id="rfc.section.8.6.p.3">This specification also provides a way for servers to reject messages that have request-targets that are too long (<a href="p2-semantics.html#status.414" title="414 URI Too Long">Section 7.5.12</a> of <a href="#Part2" id="rfc.xref.Part2.27"><cite title="Hypertext Transfer Protocol (HTTP/1.1): Semantics and Content">[Part2]</cite></a>) or request entities that are too large (<a href="p2-semantics.html#status.4xx" title="Client Error 4xx">Section 7.5</a> of <a href="#Part2" id="rfc.xref.Part2.28"><cite title="Hypertext Transfer Protocol (HTTP/1.1): Semantics and Content">[Part2]</cite></a>).
    25622561      </p>
    25632562      <p id="rfc.section.8.6.p.4">Recipients <em class="bcp14">SHOULD</em> carefully limit the extent to which they read other fields, including (but not limited to) request methods, response status
    … …  
    36413640            </li>
    36423641            <li><a id="rfc.index.P" href="#rfc.index.P"><b>P</b></a><ul>
    3643                   <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">2.3</a>, <a href="#rfc.xref.Part2.4">2.7.1</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">5.8</a>, <a href="#rfc.xref.Part2.16">5.8</a>, <a href="#rfc.xref.Part2.17">5.8</a>, <a href="#rfc.xref.Part2.18">5.8</a>, <a href="#rfc.xref.Part2.19">5.8</a>, <a href="#rfc.xref.Part2.20">5.8</a>, <a href="#rfc.xref.Part2.21">5.9</a>, <a href="#rfc.xref.Part2.22">6.2.2.1</a>, <a href="#rfc.xref.Part2.23">6.2.2.2</a>, <a href="#rfc.xref.Part2.24">6.3</a>, <a href="#rfc.xref.Part2.25">7.4</a>, <a href="#rfc.xref.Part2.26">8.6</a>, <a href="#rfc.xref.Part2.27">8.6</a>, <a href="#Part2"><b>10.1</b></a><ul>
    3644                         <li><em>Section 3.2.1</em>&nbsp;&nbsp;<a href="#rfc.xref.Part2.20">5.8</a></li>
    3645                         <li><em>Section 3.2.2</em>&nbsp;&nbsp;<a href="#rfc.xref.Part2.19">5.8</a></li>
    3646                         <li><em>Section 3.2.4</em>&nbsp;&nbsp;<a href="#rfc.xref.Part2.17">5.8</a></li>
    3647                         <li><em>Section 5</em>&nbsp;&nbsp;<a href="#rfc.xref.Part2.5">3.1.1</a></li>
    3648                         <li><em>Section 5.2.2</em>&nbsp;&nbsp;<a href="#rfc.xref.Part2.22">6.2.2.1</a>, <a href="#rfc.xref.Part2.23">6.2.2.2</a></li>
    3649                         <li><em>Section 5.3.6</em>&nbsp;&nbsp;<a href="#rfc.xref.Part2.13">5.3</a></li>
    3650                         <li><em>Section 5.3.7</em>&nbsp;&nbsp;<a href="#rfc.xref.Part2.14">5.3</a></li>
    3651                         <li><em>Section 6.3.1</em>&nbsp;&nbsp;<a href="#rfc.xref.Part2.11">4.3</a></li>
    3652                         <li><em>Section 7</em>&nbsp;&nbsp;<a href="#rfc.xref.Part2.4">2.7.1</a>, <a href="#rfc.xref.Part2.7">3.1.2</a></li>
    3653                         <li><em>Section 7.2</em>&nbsp;&nbsp;<a href="#rfc.xref.Part2.21">5.9</a></li>
     3642                  <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">2.3</a>, <a href="#rfc.xref.Part2.4">2.7</a>, <a href="#rfc.xref.Part2.5">2.7.1</a>, <a href="#rfc.xref.Part2.6">3.1.1</a>, <a href="#rfc.xref.Part2.7">3.1.1</a>, <a href="#rfc.xref.Part2.8">3.1.2</a>, <a href="#rfc.xref.Part2.9">3.2</a>, <a href="#rfc.xref.Part2.10">3.2</a>, <a href="#rfc.xref.Part2.11">3.3.1</a>, <a href="#rfc.xref.Part2.12">4.3</a>, <a href="#rfc.xref.Part2.13">5.1</a>, <a href="#rfc.xref.Part2.14">5.3</a>, <a href="#rfc.xref.Part2.15">5.3</a>, <a href="#rfc.xref.Part2.16">5.8</a>, <a href="#rfc.xref.Part2.17">5.8</a>, <a href="#rfc.xref.Part2.18">5.8</a>, <a href="#rfc.xref.Part2.19">5.8</a>, <a href="#rfc.xref.Part2.20">5.8</a>, <a href="#rfc.xref.Part2.21">5.8</a>, <a href="#rfc.xref.Part2.22">5.9</a>, <a href="#rfc.xref.Part2.23">6.2.2.1</a>, <a href="#rfc.xref.Part2.24">6.2.2.2</a>, <a href="#rfc.xref.Part2.25">6.3</a>, <a href="#rfc.xref.Part2.26">7.4</a>, <a href="#rfc.xref.Part2.27">8.6</a>, <a href="#rfc.xref.Part2.28">8.6</a>, <a href="#Part2"><b>10.1</b></a><ul>
     3643                        <li><em>Section 2</em>&nbsp;&nbsp;<a href="#rfc.xref.Part2.4">2.7</a></li>
     3644                        <li><em>Section 3.2.1</em>&nbsp;&nbsp;<a href="#rfc.xref.Part2.21">5.8</a></li>
     3645                        <li><em>Section 3.2.2</em>&nbsp;&nbsp;<a href="#rfc.xref.Part2.20">5.8</a></li>
     3646                        <li><em>Section 3.2.4</em>&nbsp;&nbsp;<a href="#rfc.xref.Part2.18">5.8</a></li>
     3647                        <li><em>Section 5</em>&nbsp;&nbsp;<a href="#rfc.xref.Part2.6">3.1.1</a></li>
     3648                        <li><em>Section 5.2.2</em>&nbsp;&nbsp;<a href="#rfc.xref.Part2.23">6.2.2.1</a>, <a href="#rfc.xref.Part2.24">6.2.2.2</a></li>
     3649                        <li><em>Section 5.3.6</em>&nbsp;&nbsp;<a href="#rfc.xref.Part2.14">5.3</a></li>
     3650                        <li><em>Section 5.3.7</em>&nbsp;&nbsp;<a href="#rfc.xref.Part2.15">5.3</a></li>
     3651                        <li><em>Section 6.3.1</em>&nbsp;&nbsp;<a href="#rfc.xref.Part2.12">4.3</a></li>
     3652                        <li><em>Section 7</em>&nbsp;&nbsp;<a href="#rfc.xref.Part2.5">2.7.1</a>, <a href="#rfc.xref.Part2.8">3.1.2</a></li>
     3653                        <li><em>Section 7.2</em>&nbsp;&nbsp;<a href="#rfc.xref.Part2.22">5.9</a></li>
    36543654                        <li><em>Section 7.3.4</em>&nbsp;&nbsp;<a href="#rfc.xref.Part2.3">2.3</a></li>
    3655                         <li><em>Section 7.4</em>&nbsp;&nbsp;<a href="#rfc.xref.Part2.24">6.3</a></li>
    3656                         <li><em>Section 7.5</em>&nbsp;&nbsp;<a href="#rfc.xref.Part2.27">8.6</a></li>
    3657                         <li><em>Section 7.5.12</em>&nbsp;&nbsp;<a href="#rfc.xref.Part2.6">3.1.1</a>, <a href="#rfc.xref.Part2.26">8.6</a></li>
    3658                         <li><em>Section 8.2.1</em>&nbsp;&nbsp;<a href="#rfc.xref.Part2.8">3.2</a></li>
    3659                         <li><em>Section 8.4.1</em>&nbsp;&nbsp;<a href="#rfc.xref.Part2.16">5.8</a></li>
    3660                         <li><em>Section 8.4.2</em>&nbsp;&nbsp;<a href="#rfc.xref.Part2.18">5.8</a></li>
    3661                         <li><em>Section 9.4</em>&nbsp;&nbsp;<a href="#rfc.xref.Part2.10">3.3.1</a>, <a href="#rfc.xref.Part2.25">7.4</a></li>
    3662                         <li><em>Section 10.3</em>&nbsp;&nbsp;<a href="#rfc.xref.Part2.9">3.2</a></li>
     3655                        <li><em>Section 7.4</em>&nbsp;&nbsp;<a href="#rfc.xref.Part2.25">6.3</a></li>
     3656                        <li><em>Section 7.5</em>&nbsp;&nbsp;<a href="#rfc.xref.Part2.28">8.6</a></li>
     3657                        <li><em>Section 7.5.12</em>&nbsp;&nbsp;<a href="#rfc.xref.Part2.7">3.1.1</a>, <a href="#rfc.xref.Part2.27">8.6</a></li>
     3658                        <li><em>Section 8.2.1</em>&nbsp;&nbsp;<a href="#rfc.xref.Part2.9">3.2</a></li>
     3659                        <li><em>Section 8.4.1</em>&nbsp;&nbsp;<a href="#rfc.xref.Part2.17">5.8</a></li>
     3660                        <li><em>Section 8.4.2</em>&nbsp;&nbsp;<a href="#rfc.xref.Part2.19">5.8</a></li>
     3661                        <li><em>Section 9.4</em>&nbsp;&nbsp;<a href="#rfc.xref.Part2.11">3.3.1</a>, <a href="#rfc.xref.Part2.26">7.4</a></li>
     3662                        <li><em>Section 10.3</em>&nbsp;&nbsp;<a href="#rfc.xref.Part2.10">3.2</a></li>
    36633663                        <li><em>Appendix A</em>&nbsp;&nbsp;<a href="#rfc.xref.Part2.2">2.1</a></li>
    36643664                     </ul>
    … …  
    37223722                  <li><em>RFC3040</em>&nbsp;&nbsp;<a href="#rfc.xref.RFC3040.1">2.3</a>, <a href="#RFC3040"><b>10.2</b></a></li>
    37233723                  <li><em>RFC3864</em>&nbsp;&nbsp;<a href="#rfc.xref.RFC3864.1">7.1</a>, <a href="#RFC3864"><b>10.2</b></a></li>
    3724                   <li><em>RFC3986</em>&nbsp;&nbsp;<a href="#rfc.xref.RFC3986.1">2.1</a>, <a href="#rfc.xref.RFC3986.2">2.7</a>, <a href="#rfc.xref.RFC3986.3">2.7</a>, <a href="#rfc.xref.RFC3986.4">2.7</a>, <a href="#rfc.xref.RFC3986.5">2.7</a>, <a href="#rfc.xref.RFC3986.6">2.7</a>, <a href="#rfc.xref.RFC3986.7">2.7</a>, <a href="#rfc.xref.RFC3986.8">2.7</a>, <a href="#rfc.xref.RFC3986.9">2.7</a>, <a href="#rfc.xref.RFC3986.10">2.7</a>, <a href="#rfc.xref.RFC3986.11">2.7</a>, <a href="#rfc.xref.RFC3986.12">2.7</a>, <a href="#rfc.xref.RFC3986.13">2.7</a>, <a href="#rfc.xref.RFC3986.14">2.7.1</a>, <a href="#rfc.xref.RFC3986.15">2.7.1</a>, <a href="#rfc.xref.RFC3986.16">2.7.3</a>, <a href="#rfc.xref.RFC3986.17">2.7.3</a>, <a href="#rfc.xref.RFC3986.18">5.1</a>, <a href="#RFC3986"><b>10.1</b></a><ul>
    3725                         <li><em>Section 2.1</em>&nbsp;&nbsp;<a href="#rfc.xref.RFC3986.17">2.7.3</a></li>
    3726                         <li><em>Section 3.2</em>&nbsp;&nbsp;<a href="#rfc.xref.RFC3986.8">2.7</a></li>
    3727                         <li><em>Section 3.2.1</em>&nbsp;&nbsp;<a href="#rfc.xref.RFC3986.15">2.7.1</a></li>
    3728                         <li><em>Section 3.2.2</em>&nbsp;&nbsp;<a href="#rfc.xref.RFC3986.13">2.7</a>, <a href="#rfc.xref.RFC3986.14">2.7.1</a></li>
    3729                         <li><em>Section 3.2.3</em>&nbsp;&nbsp;<a href="#rfc.xref.RFC3986.11">2.7</a></li>
    3730                         <li><em>Section 3.3</em>&nbsp;&nbsp;<a href="#rfc.xref.RFC3986.9">2.7</a>, <a href="#rfc.xref.RFC3986.10">2.7</a></li>
    3731                         <li><em>Section 3.4</em>&nbsp;&nbsp;<a href="#rfc.xref.RFC3986.12">2.7</a></li>
    3732                         <li><em>Section 3.5</em>&nbsp;&nbsp;<a href="#rfc.xref.RFC3986.18">5.1</a></li>
    3733                         <li><em>Section 4.1</em>&nbsp;&nbsp;<a href="#rfc.xref.RFC3986.5">2.7</a></li>
    3734                         <li><em>Section 4.2</em>&nbsp;&nbsp;<a href="#rfc.xref.RFC3986.7">2.7</a></li>
    3735                         <li><em>Section 4.3</em>&nbsp;&nbsp;<a href="#rfc.xref.RFC3986.6">2.7</a></li>
    3736                         <li><em>Section 6</em>&nbsp;&nbsp;<a href="#rfc.xref.RFC3986.16">2.7.3</a></li>
     3724                  <li><em>RFC3986</em>&nbsp;&nbsp;<a href="#rfc.xref.RFC3986.1">2.1</a>, <a href="#rfc.xref.RFC3986.2">2.7</a>, <a href="#rfc.xref.RFC3986.3">2.7</a>, <a href="#rfc.xref.RFC3986.4">2.7</a>, <a href="#rfc.xref.RFC3986.5">2.7</a>, <a href="#rfc.xref.RFC3986.6">2.7</a>, <a href="#rfc.xref.RFC3986.7">2.7</a>, <a href="#rfc.xref.RFC3986.8">2.7</a>, <a href="#rfc.xref.RFC3986.9">2.7</a>, <a href="#rfc.xref.RFC3986.10">2.7</a>, <a href="#rfc.xref.RFC3986.11">2.7</a>, <a href="#rfc.xref.RFC3986.12">2.7.1</a>, <a href="#rfc.xref.RFC3986.13">2.7.1</a>, <a href="#rfc.xref.RFC3986.14">2.7.3</a>, <a href="#rfc.xref.RFC3986.15">2.7.3</a>, <a href="#rfc.xref.RFC3986.16">5.1</a>, <a href="#RFC3986"><b>10.1</b></a><ul>
     3725                        <li><em>Section 2.1</em>&nbsp;&nbsp;<a href="#rfc.xref.RFC3986.15">2.7.3</a></li>
     3726                        <li><em>Section 3.2</em>&nbsp;&nbsp;<a href="#rfc.xref.RFC3986.6">2.7</a></li>
     3727                        <li><em>Section 3.2.1</em>&nbsp;&nbsp;<a href="#rfc.xref.RFC3986.13">2.7.1</a></li>
     3728                        <li><em>Section 3.2.2</em>&nbsp;&nbsp;<a href="#rfc.xref.RFC3986.11">2.7</a>, <a href="#rfc.xref.RFC3986.12">2.7.1</a></li>
     3729                        <li><em>Section 3.2.3</em>&nbsp;&nbsp;<a href="#rfc.xref.RFC3986.9">2.7</a></li>
     3730                        <li><em>Section 3.3</em>&nbsp;&nbsp;<a href="#rfc.xref.RFC3986.7">2.7</a>, <a href="#rfc.xref.RFC3986.8">2.7</a></li>
     3731                        <li><em>Section 3.4</em>&nbsp;&nbsp;<a href="#rfc.xref.RFC3986.10">2.7</a></li>
     3732                        <li><em>Section 3.5</em>&nbsp;&nbsp;<a href="#rfc.xref.RFC3986.16">5.1</a></li>
     3733                        <li><em>Section 4.1</em>&nbsp;&nbsp;<a href="#rfc.xref.RFC3986.3">2.7</a></li>
     3734                        <li><em>Section 4.2</em>&nbsp;&nbsp;<a href="#rfc.xref.RFC3986.5">2.7</a></li>
     3735                        <li><em>Section 4.3</em>&nbsp;&nbsp;<a href="#rfc.xref.RFC3986.4">2.7</a></li>
     3736                        <li><em>Section 6</em>&nbsp;&nbsp;<a href="#rfc.xref.RFC3986.14">2.7.3</a></li>
    37373737                     </ul>
    37383738                  </li>
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