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Aug 3, 2011, 10:44:42 PM (8 years ago)
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fielding@…
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update generated html

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

    r1373 r1375  
    12651265         </li>
    12661266         <li>If the response status code is 204, 206, or 304 and the request method was GET or HEAD, the response payload is a partial
    1267             representation of the target resource (see <a href="p6-cache.html#combining.responses" title="Combining Responses">Section 2.8</a> of <a href="#Part6" id="rfc.xref.Part6.5"><cite title="HTTP/1.1, part 6: Caching">[Part6]</cite></a>).
     1267            representation of the target resource.
    12681268         </li>
    12691269         <li>If the response has a Content-Location header field, and that URI is the same as the effective request URI, the response payload
     
    13491349         to reject the request.
    13501350      </p>
    1351       <p id="rfc.section.7.3.p.6">The response to a GET request is cacheable and <em class="bcp14">MAY</em> be used to satisfy subsequent GET and HEAD requests (see <a href="#Part6" id="rfc.xref.Part6.6"><cite title="HTTP/1.1, part 6: Caching">[Part6]</cite></a>).
     1351      <p id="rfc.section.7.3.p.6">The response to a GET request is cacheable and <em class="bcp14">MAY</em> be used to satisfy subsequent GET and HEAD requests (see <a href="#Part6" id="rfc.xref.Part6.5"><cite title="HTTP/1.1, part 6: Caching">[Part6]</cite></a>).
    13521352      </p>
    13531353      <p id="rfc.section.7.3.p.7">See <a href="#encoding.sensitive.information.in.uris" title="Encoding Sensitive Information in URIs">Section&nbsp;11.2</a> for security considerations when used for forms.
     
    13601360         hypertext links for validity, accessibility, and recent modification.
    13611361      </p>
    1362       <p id="rfc.section.7.4.p.2">The response to a HEAD request is cacheable and <em class="bcp14">MAY</em> be used to satisfy a subsequent HEAD request; see <a href="#Part6" id="rfc.xref.Part6.7"><cite title="HTTP/1.1, part 6: Caching">[Part6]</cite></a>. It also <em class="bcp14">MAY</em> be used to update a previously cached representation from that resource; if the new field values indicate that the cached
     1362      <p id="rfc.section.7.4.p.2">The response to a HEAD request is cacheable and <em class="bcp14">MAY</em> be used to satisfy a subsequent HEAD request; see <a href="#Part6" id="rfc.xref.Part6.6"><cite title="HTTP/1.1, part 6: Caching">[Part6]</cite></a>. It also <em class="bcp14">MAY</em> be used to update a previously cached representation from that resource; if the new field values indicate that the cached
    13631363         representation differs from the current representation (as would be indicated by a change in Content-Length, ETag or Last-Modified),
    13641364         then the cache <em class="bcp14">MUST</em> treat the cache entry as stale.
     
    13891389         a Location header field (see <a href="#header.location" id="rfc.xref.header.location.2" title="Location">Section&nbsp;9.4</a>).
    13901390      </p>
    1391       <p id="rfc.section.7.5.p.5">Responses to POST requests are only cacheable when they include explicit freshness information (see <a href="p6-cache.html#calculating.freshness.lifetime" title="Calculating Freshness Lifetime">Section 2.3.1</a> of <a href="#Part6" id="rfc.xref.Part6.8"><cite title="HTTP/1.1, part 6: Caching">[Part6]</cite></a>). A cached POST response with a Content-Location header field (see <a href="p3-payload.html#header.content-location" title="Content-Location">Section 6.7</a> of <a href="#Part3" id="rfc.xref.Part3.6"><cite title="HTTP/1.1, part 3: Message Payload and Content Negotiation">[Part3]</cite></a>) whose value is the effective Request URI <em class="bcp14">MAY</em> be used to satisfy subsequent GET and HEAD requests.
     1391      <p id="rfc.section.7.5.p.5">Responses to POST requests are only cacheable when they include explicit freshness information (see <a href="p6-cache.html#calculating.freshness.lifetime" title="Calculating Freshness Lifetime">Section 2.3.1</a> of <a href="#Part6" id="rfc.xref.Part6.7"><cite title="HTTP/1.1, part 6: Caching">[Part6]</cite></a>). A cached POST response with a Content-Location header field (see <a href="p3-payload.html#header.content-location" title="Content-Location">Section 6.7</a> of <a href="#Part3" id="rfc.xref.Part3.6"><cite title="HTTP/1.1, part 3: Message Payload and Content Negotiation">[Part3]</cite></a>) whose value is the effective Request URI <em class="bcp14">MAY</em> be used to satisfy subsequent GET and HEAD requests.
    13921392      </p>
    13931393      <p id="rfc.section.7.5.p.6">Note that POST caching is not widely implemented. However, the 303 (See Other) response can be used to direct the user agent
     
    14541454      </p>
    14551455      <p id="rfc.section.7.6.p.11">Responses to the PUT method are not cacheable. If a PUT request passes through a cache that has one or more stored responses
    1456          for the effective request URI, those stored responses will be invalidated (see <a href="p6-cache.html#invalidation.after.updates.or.deletions" title="Request Methods that Invalidate">Section 2.5</a> of <a href="#Part6" id="rfc.xref.Part6.9"><cite title="HTTP/1.1, part 6: Caching">[Part6]</cite></a>).
     1456         for the effective request URI, those stored responses will be invalidated (see <a href="p6-cache.html#invalidation.after.updates.or.deletions" title="Request Methods that Invalidate">Section 2.5</a> of <a href="#Part6" id="rfc.xref.Part6.8"><cite title="HTTP/1.1, part 6: Caching">[Part6]</cite></a>).
    14571457      </p>
    14581458      <div id="rfc.iref.d.1"></div>
     
    14711471      </p>
    14721472      <p id="rfc.section.7.7.p.4">Responses to the DELETE method are not cacheable. If a DELETE request passes through a cache that has one or more stored responses
    1473          for the effective request URI, those stored responses will be invalidated (see <a href="p6-cache.html#invalidation.after.updates.or.deletions" title="Request Methods that Invalidate">Section 2.5</a> of <a href="#Part6" id="rfc.xref.Part6.10"><cite title="HTTP/1.1, part 6: Caching">[Part6]</cite></a>).
     1473         for the effective request URI, those stored responses will be invalidated (see <a href="p6-cache.html#invalidation.after.updates.or.deletions" title="Request Methods that Invalidate">Section 2.5</a> of <a href="#Part6" id="rfc.xref.Part6.9"><cite title="HTTP/1.1, part 6: Caching">[Part6]</cite></a>).
    14741474      </p>
    14751475      <h2 id="rfc.section.7.8"><a href="#rfc.section.7.8">7.8</a>&nbsp;<a id="TRACE" href="#TRACE">TRACE</a></h2>
     
    15741574         <dd>a representation containing the request message as received by the end server.</dd>
    15751575      </dl>
    1576       <p id="rfc.section.8.2.1.p.2">Caches <em class="bcp14">MAY</em> use a heuristic (see <a href="p6-cache.html#heuristic.freshness" title="Calculating Heuristic Freshness">Section 2.3.1.1</a> of <a href="#Part6" id="rfc.xref.Part6.11"><cite title="HTTP/1.1, part 6: Caching">[Part6]</cite></a>) to determine freshness for 200 responses.
     1576      <p id="rfc.section.8.2.1.p.2">Caches <em class="bcp14">MAY</em> use a heuristic (see <a href="p6-cache.html#heuristic.freshness" title="Calculating Heuristic Freshness">Section 2.3.1.1</a> of <a href="#Part6" id="rfc.xref.Part6.10"><cite title="HTTP/1.1, part 6: Caching">[Part6]</cite></a>) to determine freshness for 200 responses.
    15771577      </p>
    15781578      <div id="rfc.iref.25"></div>
     
    16031603      <div id="rfc.iref.s.7"></div>
    16041604      <h3 id="rfc.section.8.2.4"><a href="#rfc.section.8.2.4">8.2.4</a>&nbsp;<a id="status.203" href="#status.203">203 Non-Authoritative Information</a></h3>
    1605       <p id="rfc.section.8.2.4.p.1">The representation in the response has been transformed or otherwise modified by a transforming proxy (<a href="p1-messaging.html#intermediaries" title="Intermediaries">Section 2.4</a> of <a href="#Part1" id="rfc.xref.Part1.27"><cite title="HTTP/1.1, part 1: URIs, Connections, and Message Parsing">[Part1]</cite></a>). Note that the behaviour of transforming intermediaries is controlled by the no-transform Cache-Control directive (<a href="p6-cache.html#header.cache-control" title="Cache-Control">Section 3.2</a> of <a href="#Part6" id="rfc.xref.Part6.12"><cite title="HTTP/1.1, part 6: Caching">[Part6]</cite></a>).
     1605      <p id="rfc.section.8.2.4.p.1">The representation in the response has been transformed or otherwise modified by a transforming proxy (<a href="p1-messaging.html#intermediaries" title="Intermediaries">Section 2.4</a> of <a href="#Part1" id="rfc.xref.Part1.27"><cite title="HTTP/1.1, part 1: URIs, Connections, and Message Parsing">[Part1]</cite></a>). Note that the behaviour of transforming intermediaries is controlled by the no-transform Cache-Control directive (<a href="p6-cache.html#header.cache-control" title="Cache-Control">Section 3.2</a> of <a href="#Part6" id="rfc.xref.Part6.11"><cite title="HTTP/1.1, part 6: Caching">[Part6]</cite></a>).
    16061606      </p>
    16071607      <p id="rfc.section.8.2.4.p.2">This status code is only appropriate when the response status code would have been 200 (OK) otherwise. When the status code
    1608          before transformation would have been different, the 214 Transformation Applied warn-code (<a href="p6-cache.html#header.warning" title="Warning">Section 3.6</a> of <a href="#Part6" id="rfc.xref.Part6.13"><cite title="HTTP/1.1, part 6: Caching">[Part6]</cite></a>) is appropriate.
    1609       </p>
    1610       <p id="rfc.section.8.2.4.p.3">Caches <em class="bcp14">MAY</em> use a heuristic (see <a href="p6-cache.html#heuristic.freshness" title="Calculating Heuristic Freshness">Section 2.3.1.1</a> of <a href="#Part6" id="rfc.xref.Part6.14"><cite title="HTTP/1.1, part 6: Caching">[Part6]</cite></a>) to determine freshness for 203 responses.
     1608         before transformation would have been different, the 214 Transformation Applied warn-code (<a href="p6-cache.html#header.warning" title="Warning">Section 3.6</a> of <a href="#Part6" id="rfc.xref.Part6.12"><cite title="HTTP/1.1, part 6: Caching">[Part6]</cite></a>) is appropriate.
     1609      </p>
     1610      <p id="rfc.section.8.2.4.p.3">Caches <em class="bcp14">MAY</em> use a heuristic (see <a href="p6-cache.html#heuristic.freshness" title="Calculating Heuristic Freshness">Section 2.3.1.1</a> of <a href="#Part6" id="rfc.xref.Part6.13"><cite title="HTTP/1.1, part 6: Caching">[Part6]</cite></a>) to determine freshness for 203 responses.
    16111611      </p>
    16121612      <div id="rfc.iref.28"></div>
     
    16461646         defined in <a href="p5-range.html#status.206" title="206 Partial Content">Section 3.1</a> of <a href="#Part5" id="rfc.xref.Part5.8"><cite title="HTTP/1.1, part 5: Range Requests and Partial Responses">[Part5]</cite></a>.
    16471647      </p>
    1648       <p id="rfc.section.8.2.7.p.2">Caches <em class="bcp14">MAY</em> use a heuristic (see <a href="p6-cache.html#heuristic.freshness" title="Calculating Heuristic Freshness">Section 2.3.1.1</a> of <a href="#Part6" id="rfc.xref.Part6.15"><cite title="HTTP/1.1, part 6: Caching">[Part6]</cite></a>) to determine freshness for 206 responses.
     1648      <p id="rfc.section.8.2.7.p.2">Caches <em class="bcp14">MAY</em> use a heuristic (see <a href="p6-cache.html#heuristic.freshness" title="Calculating Heuristic Freshness">Section 2.3.1.1</a> of <a href="#Part6" id="rfc.xref.Part6.14"><cite title="HTTP/1.1, part 6: Caching">[Part6]</cite></a>) to determine freshness for 206 responses.
    16491649      </p>
    16501650      <h2 id="rfc.section.8.3"><a href="#rfc.section.8.3">8.3</a>&nbsp;<a id="status.3xx" href="#status.3xx">Redirection 3xx</a></h2>
     
    16701670      <p id="rfc.section.8.3.1.p.3">If the server has a preferred choice of representation, it <em class="bcp14">SHOULD</em> include the specific URI for that representation in the Location field; user agents <em class="bcp14">MAY</em> use the Location field value for automatic redirection.
    16711671      </p>
    1672       <p id="rfc.section.8.3.1.p.4">Caches <em class="bcp14">MAY</em> use a heuristic (see <a href="p6-cache.html#heuristic.freshness" title="Calculating Heuristic Freshness">Section 2.3.1.1</a> of <a href="#Part6" id="rfc.xref.Part6.16"><cite title="HTTP/1.1, part 6: Caching">[Part6]</cite></a>) to determine freshness for 300 responses.
     1672      <p id="rfc.section.8.3.1.p.4">Caches <em class="bcp14">MAY</em> use a heuristic (see <a href="p6-cache.html#heuristic.freshness" title="Calculating Heuristic Freshness">Section 2.3.1.1</a> of <a href="#Part6" id="rfc.xref.Part6.15"><cite title="HTTP/1.1, part 6: Caching">[Part6]</cite></a>) to determine freshness for 300 responses.
    16731673      </p>
    16741674      <div id="rfc.iref.32"></div>
     
    16781678         request URI to one or more of the new references returned by the server, where possible.
    16791679      </p>
    1680       <p id="rfc.section.8.3.2.p.2">Caches <em class="bcp14">MAY</em> use a heuristic (see <a href="p6-cache.html#heuristic.freshness" title="Calculating Heuristic Freshness">Section 2.3.1.1</a> of <a href="#Part6" id="rfc.xref.Part6.17"><cite title="HTTP/1.1, part 6: Caching">[Part6]</cite></a>) to determine freshness for 301 responses.
     1680      <p id="rfc.section.8.3.2.p.2">Caches <em class="bcp14">MAY</em> use a heuristic (see <a href="p6-cache.html#heuristic.freshness" title="Calculating Heuristic Freshness">Section 2.3.1.1</a> of <a href="#Part6" id="rfc.xref.Part6.16"><cite title="HTTP/1.1, part 6: Caching">[Part6]</cite></a>) to determine freshness for 301 responses.
    16811681      </p>
    16821682      <p id="rfc.section.8.3.2.p.3">The new permanent URI <em class="bcp14">SHOULD</em> be given by the Location field in the response. Unless the request method was HEAD, the representation of the response <em class="bcp14">SHOULD</em> contain a short hypertext note with a hyperlink to the new URI(s).
     
    18511851         — that is left to the discretion of the server owner.
    18521852      </p>
    1853       <p id="rfc.section.8.4.11.p.3">Caches <em class="bcp14">MAY</em> use a heuristic (see <a href="p6-cache.html#heuristic.freshness" title="Calculating Heuristic Freshness">Section 2.3.1.1</a> of <a href="#Part6" id="rfc.xref.Part6.18"><cite title="HTTP/1.1, part 6: Caching">[Part6]</cite></a>) to determine freshness for 410 responses.
     1853      <p id="rfc.section.8.4.11.p.3">Caches <em class="bcp14">MAY</em> use a heuristic (see <a href="p6-cache.html#heuristic.freshness" title="Calculating Heuristic Freshness">Section 2.3.1.1</a> of <a href="#Part6" id="rfc.xref.Part6.17"><cite title="HTTP/1.1, part 6: Caching">[Part6]</cite></a>) to determine freshness for 410 responses.
    18541854      </p>
    18551855      <div id="rfc.iref.50"></div>
     
    32753275                     </ul>
    32763276                  </li>
    3277                   <li><em>Part6</em>&nbsp;&nbsp;<a href="#rfc.xref.Part6.1">2.2.1</a>, <a href="#rfc.xref.Part6.2">4.2.1</a>, <a href="#rfc.xref.Part6.3">5</a>, <a href="#rfc.xref.Part6.4">5</a>, <a href="#rfc.xref.Part6.5">6.1</a>, <a href="#rfc.xref.Part6.6">7.3</a>, <a href="#rfc.xref.Part6.7">7.4</a>, <a href="#rfc.xref.Part6.8">7.5</a>, <a href="#rfc.xref.Part6.9">7.6</a>, <a href="#rfc.xref.Part6.10">7.7</a>, <a href="#rfc.xref.Part6.11">8.2.1</a>, <a href="#rfc.xref.Part6.12">8.2.4</a>, <a href="#rfc.xref.Part6.13">8.2.4</a>, <a href="#rfc.xref.Part6.14">8.2.4</a>, <a href="#rfc.xref.Part6.15">8.2.7</a>, <a href="#rfc.xref.Part6.16">8.3.1</a>, <a href="#rfc.xref.Part6.17">8.3.2</a>, <a href="#rfc.xref.Part6.18">8.4.11</a>, <a href="#Part6"><b>13.1</b></a><ul>
    3278                         <li><em>Section 2.3.1</em>&nbsp;&nbsp;<a href="#rfc.xref.Part6.8">7.5</a></li>
    3279                         <li><em>Section 2.3.1.1</em>&nbsp;&nbsp;<a href="#rfc.xref.Part6.11">8.2.1</a>, <a href="#rfc.xref.Part6.14">8.2.4</a>, <a href="#rfc.xref.Part6.15">8.2.7</a>, <a href="#rfc.xref.Part6.16">8.3.1</a>, <a href="#rfc.xref.Part6.17">8.3.2</a>, <a href="#rfc.xref.Part6.18">8.4.11</a></li>
    3280                         <li><em>Section 2.5</em>&nbsp;&nbsp;<a href="#rfc.xref.Part6.9">7.6</a>, <a href="#rfc.xref.Part6.10">7.7</a></li>
    3281                         <li><em>Section 2.8</em>&nbsp;&nbsp;<a href="#rfc.xref.Part6.5">6.1</a></li>
     3277                  <li><em>Part6</em>&nbsp;&nbsp;<a href="#rfc.xref.Part6.1">2.2.1</a>, <a href="#rfc.xref.Part6.2">4.2.1</a>, <a href="#rfc.xref.Part6.3">5</a>, <a href="#rfc.xref.Part6.4">5</a>, <a href="#rfc.xref.Part6.5">7.3</a>, <a href="#rfc.xref.Part6.6">7.4</a>, <a href="#rfc.xref.Part6.7">7.5</a>, <a href="#rfc.xref.Part6.8">7.6</a>, <a href="#rfc.xref.Part6.9">7.7</a>, <a href="#rfc.xref.Part6.10">8.2.1</a>, <a href="#rfc.xref.Part6.11">8.2.4</a>, <a href="#rfc.xref.Part6.12">8.2.4</a>, <a href="#rfc.xref.Part6.13">8.2.4</a>, <a href="#rfc.xref.Part6.14">8.2.7</a>, <a href="#rfc.xref.Part6.15">8.3.1</a>, <a href="#rfc.xref.Part6.16">8.3.2</a>, <a href="#rfc.xref.Part6.17">8.4.11</a>, <a href="#Part6"><b>13.1</b></a><ul>
     3278                        <li><em>Section 2.3.1</em>&nbsp;&nbsp;<a href="#rfc.xref.Part6.7">7.5</a></li>
     3279                        <li><em>Section 2.3.1.1</em>&nbsp;&nbsp;<a href="#rfc.xref.Part6.10">8.2.1</a>, <a href="#rfc.xref.Part6.13">8.2.4</a>, <a href="#rfc.xref.Part6.14">8.2.7</a>, <a href="#rfc.xref.Part6.15">8.3.1</a>, <a href="#rfc.xref.Part6.16">8.3.2</a>, <a href="#rfc.xref.Part6.17">8.4.11</a></li>
     3280                        <li><em>Section 2.5</em>&nbsp;&nbsp;<a href="#rfc.xref.Part6.8">7.6</a>, <a href="#rfc.xref.Part6.9">7.7</a></li>
    32823281                        <li><em>Section 3.1</em>&nbsp;&nbsp;<a href="#rfc.xref.Part6.3">5</a></li>
    3283                         <li><em>Section 3.2</em>&nbsp;&nbsp;<a href="#rfc.xref.Part6.12">8.2.4</a></li>
     3282                        <li><em>Section 3.2</em>&nbsp;&nbsp;<a href="#rfc.xref.Part6.11">8.2.4</a></li>
    32843283                        <li><em>Section 3.5</em>&nbsp;&nbsp;<a href="#rfc.xref.Part6.4">5</a></li>
    3285                         <li><em>Section 3.6</em>&nbsp;&nbsp;<a href="#rfc.xref.Part6.13">8.2.4</a></li>
     3284                        <li><em>Section 3.6</em>&nbsp;&nbsp;<a href="#rfc.xref.Part6.12">8.2.4</a></li>
    32863285                     </ul>
    32873286                  </li>
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