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Changeset 1799 for draft-ietf-httpbis/latest/p4-conditional.html
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- 16/07/12 06:22:34 (8 years ago)
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draft-ietf-httpbis/latest/p4-conditional.html (modified) (23 diffs)
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draft-ietf-httpbis/latest/p4-conditional.html
r1796 r1799 449 449 } 450 450 @bottom-center { 451 content: "Expires January 1 7, 2013";451 content: "Expires January 16, 2013"; 452 452 } 453 453 @bottom-right { … … 475 475 <link rel="Chapter" title="3 Precondition Header Fields" href="#rfc.section.3"> 476 476 <link rel="Chapter" title="4 Status Code Definitions" href="#rfc.section.4"> 477 <link rel="Chapter" title="5 IANA Considerations" href="#rfc.section.5"> 478 <link rel="Chapter" title="6 Security Considerations" href="#rfc.section.6"> 479 <link rel="Chapter" title="7 Acknowledgments" href="#rfc.section.7"> 480 <link rel="Chapter" href="#rfc.section.8" title="8 References"> 477 <link rel="Chapter" title="5 Precedence" href="#rfc.section.5"> 478 <link rel="Chapter" title="6 IANA Considerations" href="#rfc.section.6"> 479 <link rel="Chapter" title="7 Security Considerations" href="#rfc.section.7"> 480 <link rel="Chapter" title="8 Acknowledgments" href="#rfc.section.8"> 481 <link rel="Chapter" href="#rfc.section.9" title="9 References"> 481 482 <link rel="Appendix" title="A Changes from RFC 2616" href="#rfc.section.A"> 482 483 <link rel="Appendix" title="B Collected ABNF" href="#rfc.section.B"> … … 490 491 <meta name="dct.creator" content="Reschke, J. F."> 491 492 <meta name="dct.identifier" content="urn:ietf:id:draft-ietf-httpbis-p4-conditional-latest"> 492 <meta name="dct.issued" scheme="ISO8601" content="2012-07-1 6">493 <meta name="dct.issued" scheme="ISO8601" content="2012-07-15"> 493 494 <meta name="dct.replaces" content="urn:ietf:rfc:2616"> 494 495 <meta name="dct.abstract" content="The Hypertext Transfer Protocol (HTTP) is an application-level protocol for distributed, collaborative, hypertext information systems. This document defines HTTP/1.1 conditional requests, including metadata header fields for indicating state changes, request header fields for making preconditions on such state, and rules for constructing the responses to a conditional request when one or more preconditions evaluate to false."> … … 516 517 </tr> 517 518 <tr> 518 <td class="left">Expires: January 1 7, 2013</td>519 <td class="left">Expires: January 16, 2013</td> 519 520 <td class="right">J. Reschke, Editor</td> 520 521 </tr> … … 525 526 <tr> 526 527 <td class="left"></td> 527 <td class="right">July 1 6, 2012</td>528 <td class="right">July 15, 2012</td> 528 529 </tr> 529 530 </tbody> … … 552 553 in progress”. 553 554 </p> 554 <p>This Internet-Draft will expire on January 1 7, 2013.</p>555 <p>This Internet-Draft will expire on January 16, 2013.</p> 555 556 <h1><a id="rfc.copyrightnotice" href="#rfc.copyrightnotice">Copyright Notice</a></h1> 556 557 <p>Copyright © 2012 IETF Trust and the persons identified as the document authors. All rights reserved.</p> … … 604 605 </ul> 605 606 </li> 606 <li>5. <a href="#IANA.considerations">IANA Considerations</a><ul> 607 <li>5.1 <a href="#status.code.registration">Status Code Registration</a></li> 608 <li>5.2 <a href="#header.field.registration">Header Field Registration</a></li> 607 <li>5. <a href="#precedence">Precedence</a></li> 608 <li>6. <a href="#IANA.considerations">IANA Considerations</a><ul> 609 <li>6.1 <a href="#status.code.registration">Status Code Registration</a></li> 610 <li>6.2 <a href="#header.field.registration">Header Field Registration</a></li> 609 611 </ul> 610 612 </li> 611 <li> 6. <a href="#security.considerations">Security Considerations</a></li>612 <li> 7. <a href="#acks">Acknowledgments</a></li>613 <li> 8. <a href="#rfc.references">References</a><ul>614 <li> 8.1 <a href="#rfc.references.1">Normative References</a></li>615 <li> 8.2 <a href="#rfc.references.2">Informative References</a></li>613 <li>7. <a href="#security.considerations">Security Considerations</a></li> 614 <li>8. <a href="#acks">Acknowledgments</a></li> 615 <li>9. <a href="#rfc.references">References</a><ul> 616 <li>9.1 <a href="#rfc.references.1">Normative References</a></li> 617 <li>9.2 <a href="#rfc.references.2">Informative References</a></li> 616 618 </ul> 617 619 </li> … … 968 970 </ul> 969 971 <h1 id="rfc.section.3"><a href="#rfc.section.3">3.</a> <a id="header.field.definitions" href="#header.field.definitions">Precondition Header Fields</a></h1> 970 <p id="rfc.section.3.p.1">This section defines the syntax and semantics of HTTP/1.1 header fields for applying preconditions on requests.</p> 972 <p id="rfc.section.3.p.1">This section defines the syntax and semantics of HTTP/1.1 header fields for applying preconditions on requests. <a href="#precedence" title="Precedence">Section 5</a> defines the order of evaluation when more than one precondition is present in a request. 973 </p> 971 974 <div id="rfc.iref.i.1"></div> 972 975 <div id="rfc.iref.h.3"></div> … … 996 999 If-Match: "xyzzy", "r2d2xxxx", "c3piozzzz" 997 1000 If-Match: * 998 </pre><p id="rfc.section.3.1.p.11">The result of a request having both an If-Match header field and either an <a href="#header.if-none-match" class="smpl">If-None-Match</a> or an <a href="#header.if-modified-since" class="smpl">If-Modified-Since</a> header field is undefined by this specification. 999 </p> 1000 <div id="rfc.iref.i.2"></div> 1001 </pre><div id="rfc.iref.i.2"></div> 1001 1002 <div id="rfc.iref.h.4"></div> 1002 1003 <h2 id="rfc.section.3.2"><a href="#rfc.section.3.2">3.2</a> <a id="header.if-none-match" href="#header.if-none-match">If-None-Match</a></h2> … … 1032 1033 If-None-Match: W/"xyzzy", W/"r2d2xxxx", W/"c3piozzzz" 1033 1034 If-None-Match: * 1034 </pre><p id="rfc.section.3.2.p.11">The result of a request having both an If-None-Match header field and either an <a href="#header.if-match" class="smpl">If-Match</a> or an <a href="#header.if-unmodified-since" class="smpl">If-Unmodified-Since</a> header field is undefined by this specification. 1035 </p> 1036 <div id="rfc.iref.i.3"></div> 1035 </pre><div id="rfc.iref.i.3"></div> 1037 1036 <div id="rfc.iref.h.5"></div> 1038 1037 <h2 id="rfc.section.3.3"><a href="#rfc.section.3.3">3.3</a> <a id="header.if-modified-since" href="#header.if-modified-since">If-Modified-Since</a></h2> 1039 <p id="rfc.section.3.3.p.1">The "If-Modified-Since" header field can be used to make a request method conditional by modification date: if the selected1040 representation has not been modified since the time specified in this field, then do not perform the request method; instead,1041 respond as detailed below.1038 <p id="rfc.section.3.3.p.1">The "If-Modified-Since" header field can be used with GET or HEAD to make the method conditional by modification date: if 1039 the selected representation has not been modified since the time specified in this field, then do not perform the request 1040 method; instead, respond as detailed below. 1042 1041 </p> 1043 1042 <div id="rfc.figure.u.13"></div><pre class="inline"><span id="rfc.iref.g.9"></span> <a href="#header.if-modified-since" class="smpl">If-Modified-Since</a> = <a href="#notation" class="smpl">HTTP-date</a> … … 1075 1074 </li> 1076 1075 </ul> 1077 <p id="rfc.section.3.3.p.7">The result of a request having both an If-Modified-Since header field and either an <a href="#header.if-match" class="smpl">If-Match</a> or an <a href="#header.if-unmodified-since" class="smpl">If-Unmodified-Since</a> header field is undefined by this specification.1078 </p>1079 1076 <div id="rfc.iref.i.4"></div> 1080 1077 <div id="rfc.iref.h.6"></div> … … 1089 1086 </p> 1090 1087 <p id="rfc.section.3.4.p.6">If the specified date is invalid, the header field <em class="bcp14">MUST</em> be ignored. 1091 </p>1092 <p id="rfc.section.3.4.p.7">The result of a request having both an If-Unmodified-Since header field and either an <a href="#header.if-none-match" class="smpl">If-None-Match</a> or an <a href="#header.if-modified-since" class="smpl">If-Modified-Since</a> header field is undefined by this specification.1093 1088 </p> 1094 1089 <h2 id="rfc.section.3.5"><a href="#rfc.section.3.5">3.5</a> <a id="header.if-range" href="#header.if-range">If-Range</a></h2> … … 1124 1119 and metadata) and thus prevent the request method from being applied if the target resource is in an unexpected state. 1125 1120 </p> 1126 <h1 id="rfc.section.5"><a href="#rfc.section.5">5.</a> <a id="IANA.considerations" href="#IANA.considerations">IANA Considerations</a></h1> 1127 <h2 id="rfc.section.5.1"><a href="#rfc.section.5.1">5.1</a> <a id="status.code.registration" href="#status.code.registration">Status Code Registration</a></h2> 1128 <p id="rfc.section.5.1.p.1">The HTTP Status Code Registry located at <<a href="http://www.iana.org/assignments/http-status-codes">http://www.iana.org/assignments/http-status-codes</a>> shall be updated with the registrations below: 1121 <h1 id="rfc.section.5"><a href="#rfc.section.5">5.</a> <a id="precedence" href="#precedence">Precedence</a></h1> 1122 <p id="rfc.section.5.p.1">When more than one conditional request header field is present in a request, the order in which the fields are evaluated becomes 1123 important. In practice, the fields defined in this document are consistently implemented in a single, logical order, due to 1124 the fact that entity tags are presumed to be more accurate than date validators. For example, the only reason to send both <a href="#header.if-modified-since" class="smpl">If-Modified-Since</a> and <a href="#header.if-none-match" class="smpl">If-None-Match</a> in the same GET request is to support intermediary caches that might not have implemented <a href="#header.if-none-match" class="smpl">If-None-Match</a>, so it makes sense to ignore the <a href="#header.if-modified-since" class="smpl">If-Modified-Since</a> when entity tags are understood and available for the selected representation. 1125 </p> 1126 <p id="rfc.section.5.p.2">The general rule of conditional precedence is that exact match conditions are evaluated before cache-validating conditions 1127 and, within that order, last-modified conditions are only evaluated if the corresponding entity tag condition is not present 1128 (or not applicable because the selected representation does not have an entity tag). 1129 </p> 1130 <p id="rfc.section.5.p.3">Specifically, the fields defined by this specification are evaluated as follows: </p> 1131 <ol> 1132 <li>When <a href="#header.if-match" class="smpl">If-Match</a> is present, evaluate it: 1133 <ul> 1134 <li>if true, continue to step 3</li> 1135 <li>if false, respond <a href="#status.412" class="smpl">412 (Precondition Failed)</a></li> 1136 </ul> 1137 </li> 1138 <li>When <a href="#header.if-match" class="smpl">If-Match</a> is not present and <a href="#header.if-unmodified-since" class="smpl">If-Unmodified-Since</a> is present, evaluate it: 1139 <ul> 1140 <li>if true, continue to step 3</li> 1141 <li>if false, respond <a href="#status.412" class="smpl">412 (Precondition Failed)</a></li> 1142 </ul> 1143 </li> 1144 <li>When the method is GET and both <a href="p5-range.html#range.retrieval.requests" class="smpl">Range</a> and <a href="p5-range.html#header.if-range" class="smpl">If-Range</a> are present, evaluate it: 1145 <ul> 1146 <li>if the validator matches, respond 206 (Partial Content)</li> 1147 <li>if the validator does not match, respond <a href="p2-semantics.html#status.200" class="smpl">200 (OK)</a></li> 1148 </ul> 1149 </li> 1150 <li>When <a href="#header.if-none-match" class="smpl">If-None-Match</a> is present, evaluate it: 1151 <ul> 1152 <li>if true, all conditions are met</li> 1153 <li>if false for GET/HEAD, respond <a href="#status.304" class="smpl">304 (Not Modified)</a></li> 1154 <li>if false for other methods, respond <a href="#status.412" class="smpl">412 (Precondition Failed)</a></li> 1155 </ul> 1156 </li> 1157 <li>When the method is GET or HEAD, <a href="#header.if-none-match" class="smpl">If-None-Match</a> is not present, and <a href="#header.if-modified-since" class="smpl">If-Modified-Since</a> is present, evaluate it: 1158 <ul> 1159 <li>if true, all conditions are met</li> 1160 <li>if false, respond <a href="#status.304" class="smpl">304 (Not Modified)</a></li> 1161 </ul> 1162 </li> 1163 </ol> 1164 <p id="rfc.section.5.p.4">Any extension to HTTP/1.1 that defines additional conditional request header fields ought to define its own expectations regarding 1165 the order for evaluating such fields in relation to those defined in this document and other conditionals that might be found 1166 in practice. 1167 </p> 1168 <h1 id="rfc.section.6"><a href="#rfc.section.6">6.</a> <a id="IANA.considerations" href="#IANA.considerations">IANA Considerations</a></h1> 1169 <h2 id="rfc.section.6.1"><a href="#rfc.section.6.1">6.1</a> <a id="status.code.registration" href="#status.code.registration">Status Code Registration</a></h2> 1170 <p id="rfc.section.6.1.p.1">The HTTP Status Code Registry located at <<a href="http://www.iana.org/assignments/http-status-codes">http://www.iana.org/assignments/http-status-codes</a>> shall be updated with the registrations below: 1129 1171 </p> 1130 1172 <div id="rfc.table.1"> … … 1154 1196 </table> 1155 1197 </div> 1156 <h2 id="rfc.section. 5.2"><a href="#rfc.section.5.2">5.2</a> <a id="header.field.registration" href="#header.field.registration">Header Field Registration</a></h2>1157 <p id="rfc.section. 5.2.p.1">The Message Header Field Registry located at <<a href="http://www.iana.org/assignments/message-headers/message-header-index.html">http://www.iana.org/assignments/message-headers/message-header-index.html</a>> shall be updated with the permanent registrations below (see <a href="#RFC3864" id="rfc.xref.RFC3864.1"><cite title="Registration Procedures for Message Header Fields">[RFC3864]</cite></a>):1198 <h2 id="rfc.section.6.2"><a href="#rfc.section.6.2">6.2</a> <a id="header.field.registration" href="#header.field.registration">Header Field Registration</a></h2> 1199 <p id="rfc.section.6.2.p.1">The Message Header Field Registry located at <<a href="http://www.iana.org/assignments/message-headers/message-header-index.html">http://www.iana.org/assignments/message-headers/message-header-index.html</a>> shall be updated with the permanent registrations below (see <a href="#RFC3864" id="rfc.xref.RFC3864.1"><cite title="Registration Procedures for Message Header Fields">[RFC3864]</cite></a>): 1158 1200 </p> 1159 1201 <div id="rfc.table.2"> … … 1214 1256 </table> 1215 1257 </div> 1216 <p id="rfc.section. 5.2.p.2">The change controller is: "IETF (iesg@ietf.org) - Internet Engineering Task Force".</p>1217 <h1 id="rfc.section. 6"><a href="#rfc.section.6">6.</a> <a id="security.considerations" href="#security.considerations">Security Considerations</a></h1>1218 <p id="rfc.section. 6.p.1">No additional security considerations have been identified beyond those applicable to HTTP in general <a href="#Part1" id="rfc.xref.Part1.8"><cite title="HTTP/1.1, part 1: URIs, Connections, and Message Parsing">[Part1]</cite></a>.1219 </p> 1220 <h1 id="rfc.section. 7"><a href="#rfc.section.7">7.</a> <a id="acks" href="#acks">Acknowledgments</a></h1>1221 <p id="rfc.section. 7.p.1">See <a href="p1-messaging.html#acks" title="Acknowledgments">Section 9</a> of <a href="#Part1" id="rfc.xref.Part1.9"><cite title="HTTP/1.1, part 1: URIs, Connections, and Message Parsing">[Part1]</cite></a>.1222 </p> 1223 <h1 id="rfc.references"><a id="rfc.section. 8" href="#rfc.section.8">8.</a> References1258 <p id="rfc.section.6.2.p.2">The change controller is: "IETF (iesg@ietf.org) - Internet Engineering Task Force".</p> 1259 <h1 id="rfc.section.7"><a href="#rfc.section.7">7.</a> <a id="security.considerations" href="#security.considerations">Security Considerations</a></h1> 1260 <p id="rfc.section.7.p.1">No additional security considerations have been identified beyond those applicable to HTTP in general <a href="#Part1" id="rfc.xref.Part1.8"><cite title="HTTP/1.1, part 1: URIs, Connections, and Message Parsing">[Part1]</cite></a>. 1261 </p> 1262 <h1 id="rfc.section.8"><a href="#rfc.section.8">8.</a> <a id="acks" href="#acks">Acknowledgments</a></h1> 1263 <p id="rfc.section.8.p.1">See <a href="p1-messaging.html#acks" title="Acknowledgments">Section 9</a> of <a href="#Part1" id="rfc.xref.Part1.9"><cite title="HTTP/1.1, part 1: URIs, Connections, and Message Parsing">[Part1]</cite></a>. 1264 </p> 1265 <h1 id="rfc.references"><a id="rfc.section.9" href="#rfc.section.9">9.</a> References 1224 1266 </h1> 1225 <h2 id="rfc.references.1"><a href="#rfc.section. 8.1" id="rfc.section.8.1">8.1</a> Normative References1267 <h2 id="rfc.references.1"><a href="#rfc.section.9.1" id="rfc.section.9.1">9.1</a> Normative References 1226 1268 </h2> 1227 1269 <table> … … 1257 1299 </tr> 1258 1300 </table> 1259 <h2 id="rfc.references.2"><a href="#rfc.section. 8.2" id="rfc.section.8.2">8.2</a> Informative References1301 <h2 id="rfc.references.2"><a href="#rfc.section.9.2" id="rfc.section.9.2">9.2</a> Informative References 1260 1302 </h2> 1261 1303 <table> … … 1340 1382 <ul class="ind"> 1341 1383 <li><a id="rfc.index.3" href="#rfc.index.3"><b>3</b></a><ul> 1342 <li>304 Not Modified (status code) <a href="#rfc.iref.27"><b>4.1</b></a>, <a href="#rfc.xref.status.304.1"> 5.1</a></li>1384 <li>304 Not Modified (status code) <a href="#rfc.iref.27"><b>4.1</b></a>, <a href="#rfc.xref.status.304.1">6.1</a></li> 1343 1385 </ul> 1344 1386 </li> 1345 1387 <li><a id="rfc.index.4" href="#rfc.index.4"><b>4</b></a><ul> 1346 <li>412 Precondition Failed (status code) <a href="#rfc.iref.28"><b>4.2</b></a>, <a href="#rfc.xref.status.412.1"> 5.1</a></li>1388 <li>412 Precondition Failed (status code) <a href="#rfc.iref.28"><b>4.2</b></a>, <a href="#rfc.xref.status.412.1">6.1</a></li> 1347 1389 </ul> 1348 1390 </li> 1349 1391 <li><a id="rfc.index.E" href="#rfc.index.E"><b>E</b></a><ul> 1350 <li>ETag header field <a href="#rfc.xref.header.etag.1">2</a>, <a href="#rfc.iref.e.1"><b>2.3</b></a>, <a href="#rfc.xref.header.etag.2"> 5.2</a>, <a href="#rfc.xref.header.etag.3">A</a></li>1392 <li>ETag header field <a href="#rfc.xref.header.etag.1">2</a>, <a href="#rfc.iref.e.1"><b>2.3</b></a>, <a href="#rfc.xref.header.etag.2">6.2</a>, <a href="#rfc.xref.header.etag.3">A</a></li> 1351 1393 </ul> 1352 1394 </li> … … 1371 1413 <li>Header Fields 1372 1414 <ul> 1373 <li>ETag <a href="#rfc.xref.header.etag.1">2</a>, <a href="#rfc.iref.h.2"><b>2.3</b></a>, <a href="#rfc.xref.header.etag.2"> 5.2</a>, <a href="#rfc.xref.header.etag.3">A</a></li>1374 <li>If-Match <a href="#rfc.iref.h.3"><b>3.1</b></a>, <a href="#rfc.xref.header.if-match.1"> 5.2</a></li>1375 <li>If-Modified-Since <a href="#rfc.iref.h.5"><b>3.3</b></a>, <a href="#rfc.xref.header.if-modified-since.1"> 5.2</a></li>1376 <li>If-None-Match <a href="#rfc.iref.h.4"><b>3.2</b></a>, <a href="#rfc.xref.header.if-none-match.1"> 5.2</a>, <a href="#rfc.xref.header.if-none-match.2">A</a></li>1377 <li>If-Unmodified-Since <a href="#rfc.iref.h.6"><b>3.4</b></a>, <a href="#rfc.xref.header.if-unmodified-since.1"> 5.2</a></li>1378 <li>Last-Modified <a href="#rfc.xref.header.last-modified.1">2</a>, <a href="#rfc.iref.h.1"><b>2.2</b></a>, <a href="#rfc.xref.header.last-modified.2"> 5.2</a></li>1415 <li>ETag <a href="#rfc.xref.header.etag.1">2</a>, <a href="#rfc.iref.h.2"><b>2.3</b></a>, <a href="#rfc.xref.header.etag.2">6.2</a>, <a href="#rfc.xref.header.etag.3">A</a></li> 1416 <li>If-Match <a href="#rfc.iref.h.3"><b>3.1</b></a>, <a href="#rfc.xref.header.if-match.1">6.2</a></li> 1417 <li>If-Modified-Since <a href="#rfc.iref.h.5"><b>3.3</b></a>, <a href="#rfc.xref.header.if-modified-since.1">6.2</a></li> 1418 <li>If-None-Match <a href="#rfc.iref.h.4"><b>3.2</b></a>, <a href="#rfc.xref.header.if-none-match.1">6.2</a>, <a href="#rfc.xref.header.if-none-match.2">A</a></li> 1419 <li>If-Unmodified-Since <a href="#rfc.iref.h.6"><b>3.4</b></a>, <a href="#rfc.xref.header.if-unmodified-since.1">6.2</a></li> 1420 <li>Last-Modified <a href="#rfc.xref.header.last-modified.1">2</a>, <a href="#rfc.iref.h.1"><b>2.2</b></a>, <a href="#rfc.xref.header.last-modified.2">6.2</a></li> 1379 1421 </ul> 1380 1422 </li> … … 1382 1424 </li> 1383 1425 <li><a id="rfc.index.I" href="#rfc.index.I"><b>I</b></a><ul> 1384 <li>If-Match header field <a href="#rfc.iref.i.1"><b>3.1</b></a>, <a href="#rfc.xref.header.if-match.1"> 5.2</a></li>1385 <li>If-Modified-Since header field <a href="#rfc.iref.i.3"><b>3.3</b></a>, <a href="#rfc.xref.header.if-modified-since.1"> 5.2</a></li>1386 <li>If-None-Match header field <a href="#rfc.iref.i.2"><b>3.2</b></a>, <a href="#rfc.xref.header.if-none-match.1"> 5.2</a>, <a href="#rfc.xref.header.if-none-match.2">A</a></li>1387 <li>If-Unmodified-Since header field <a href="#rfc.iref.i.4"><b>3.4</b></a>, <a href="#rfc.xref.header.if-unmodified-since.1"> 5.2</a></li>1426 <li>If-Match header field <a href="#rfc.iref.i.1"><b>3.1</b></a>, <a href="#rfc.xref.header.if-match.1">6.2</a></li> 1427 <li>If-Modified-Since header field <a href="#rfc.iref.i.3"><b>3.3</b></a>, <a href="#rfc.xref.header.if-modified-since.1">6.2</a></li> 1428 <li>If-None-Match header field <a href="#rfc.iref.i.2"><b>3.2</b></a>, <a href="#rfc.xref.header.if-none-match.1">6.2</a>, <a href="#rfc.xref.header.if-none-match.2">A</a></li> 1429 <li>If-Unmodified-Since header field <a href="#rfc.iref.i.4"><b>3.4</b></a>, <a href="#rfc.xref.header.if-unmodified-since.1">6.2</a></li> 1388 1430 </ul> 1389 1431 </li> 1390 1432 <li><a id="rfc.index.L" href="#rfc.index.L"><b>L</b></a><ul> 1391 <li>Last-Modified header field <a href="#rfc.xref.header.last-modified.1">2</a>, <a href="#rfc.iref.l.1"><b>2.2</b></a>, <a href="#rfc.xref.header.last-modified.2"> 5.2</a></li>1433 <li>Last-Modified header field <a href="#rfc.xref.header.last-modified.1">2</a>, <a href="#rfc.iref.l.1"><b>2.2</b></a>, <a href="#rfc.xref.header.last-modified.2">6.2</a></li> 1392 1434 </ul> 1393 1435 </li> … … 1397 1439 </li> 1398 1440 <li><a id="rfc.index.P" href="#rfc.index.P"><b>P</b></a><ul> 1399 <li><em>Part1</em> <a href="#rfc.xref.Part1.1">1</a>, <a href="#rfc.xref.Part1.2">1.1</a>, <a href="#rfc.xref.Part1.3">1.2</a>, <a href="#rfc.xref.Part1.4">1.2</a>, <a href="#rfc.xref.Part1.5">1.2</a>, <a href="#rfc.xref.Part1.6">1.2</a>, <a href="#rfc.xref.Part1.7">2.3.3</a>, <a href="#rfc.xref.Part1.8"> 6</a>, <a href="#rfc.xref.Part1.9">7</a>, <a href="#Part1"><b>8.1</b></a><ul>1441 <li><em>Part1</em> <a href="#rfc.xref.Part1.1">1</a>, <a href="#rfc.xref.Part1.2">1.1</a>, <a href="#rfc.xref.Part1.3">1.2</a>, <a href="#rfc.xref.Part1.4">1.2</a>, <a href="#rfc.xref.Part1.5">1.2</a>, <a href="#rfc.xref.Part1.6">1.2</a>, <a href="#rfc.xref.Part1.7">2.3.3</a>, <a href="#rfc.xref.Part1.8">7</a>, <a href="#rfc.xref.Part1.9">8</a>, <a href="#Part1"><b>9.1</b></a><ul> 1400 1442 <li><em>Section 1.2</em> <a href="#rfc.xref.Part1.3">1.2</a></li> 1401 1443 <li><em>Section 2</em> <a href="#rfc.xref.Part1.2">1.1</a></li> … … 1403 1445 <li><em>Section 3.2.4</em> <a href="#rfc.xref.Part1.6">1.2</a></li> 1404 1446 <li><em>Section 4</em> <a href="#rfc.xref.Part1.7">2.3.3</a></li> 1405 <li><em>Section 9</em> <a href="#rfc.xref.Part1.9"> 7</a></li>1447 <li><em>Section 9</em> <a href="#rfc.xref.Part1.9">8</a></li> 1406 1448 </ul> 1407 1449 </li> 1408 <li><em>Part2</em> <a href="#rfc.xref.Part2.1">1</a>, <a href="#rfc.xref.Part2.2">1.2</a>, <a href="#rfc.xref.Part2.3">1.2</a>, <a href="#rfc.xref.Part2.4">2.3.3</a>, <a href="#rfc.xref.Part2.5">2.3.3</a>, <a href="#rfc.xref.Part2.6">4.1</a>, <a href="#Part2"><b> 8.1</b></a><ul>1450 <li><em>Part2</em> <a href="#rfc.xref.Part2.1">1</a>, <a href="#rfc.xref.Part2.2">1.2</a>, <a href="#rfc.xref.Part2.3">1.2</a>, <a href="#rfc.xref.Part2.4">2.3.3</a>, <a href="#rfc.xref.Part2.5">2.3.3</a>, <a href="#rfc.xref.Part2.6">4.1</a>, <a href="#Part2"><b>9.1</b></a><ul> 1409 1451 <li><em>Section 5.1</em> <a href="#rfc.xref.Part2.3">1.2</a></li> 1410 1452 <li><em>Section 8</em> <a href="#rfc.xref.Part2.4">2.3.3</a></li> … … 1413 1455 </ul> 1414 1456 </li> 1415 <li><em>Part5</em> <a href="#rfc.xref.Part5.1">3.3</a>, <a href="#rfc.xref.Part5.2">3.5</a>, <a href="#Part5"><b> 8.1</b></a><ul>1457 <li><em>Part5</em> <a href="#rfc.xref.Part5.1">3.3</a>, <a href="#rfc.xref.Part5.2">3.5</a>, <a href="#Part5"><b>9.1</b></a><ul> 1416 1458 <li><em>Section 5.3</em> <a href="#rfc.xref.Part5.2">3.5</a></li> 1417 1459 <li><em>Section 5.4</em> <a href="#rfc.xref.Part5.1">3.3</a></li> 1418 1460 </ul> 1419 1461 </li> 1420 <li><em>Part6</em> <a href="#rfc.xref.Part6.1">1</a>, <a href="#rfc.xref.Part6.2">2.2.1</a>, <a href="#rfc.xref.Part6.3">2.3.1</a>, <a href="#Part6"><b> 8.1</b></a></li>1462 <li><em>Part6</em> <a href="#rfc.xref.Part6.1">1</a>, <a href="#rfc.xref.Part6.2">2.2.1</a>, <a href="#rfc.xref.Part6.3">2.3.1</a>, <a href="#Part6"><b>9.1</b></a></li> 1421 1463 </ul> 1422 1464 </li> 1423 1465 <li><a id="rfc.index.R" href="#rfc.index.R"><b>R</b></a><ul> 1424 <li><em>RFC2119</em> <a href="#rfc.xref.RFC2119.1">1.1</a>, <a href="#RFC2119"><b> 8.1</b></a></li>1425 <li><em>RFC2616</em> <a href="#rfc.xref.RFC2616.1">2.3</a>, <a href="#RFC2616"><b> 8.2</b></a><ul>1466 <li><em>RFC2119</em> <a href="#rfc.xref.RFC2119.1">1.1</a>, <a href="#RFC2119"><b>9.1</b></a></li> 1467 <li><em>RFC2616</em> <a href="#rfc.xref.RFC2616.1">2.3</a>, <a href="#RFC2616"><b>9.2</b></a><ul> 1426 1468 <li><em>Section 3.11</em> <a href="#rfc.xref.RFC2616.1">2.3</a></li> 1427 1469 </ul> 1428 1470 </li> 1429 <li><em>RFC3864</em> <a href="#rfc.xref.RFC3864.1"> 5.2</a>, <a href="#RFC3864"><b>8.2</b></a></li>1430 <li><em>RFC4918</em> <a href="#rfc.xref.RFC4918.1">2</a>, <a href="#RFC4918"><b> 8.2</b></a></li>1431 <li><em>RFC5234</em> <a href="#rfc.xref.RFC5234.1">1.2</a>, <a href="#rfc.xref.RFC5234.2">1.2</a>, <a href="#RFC5234"><b> 8.1</b></a><ul>1471 <li><em>RFC3864</em> <a href="#rfc.xref.RFC3864.1">6.2</a>, <a href="#RFC3864"><b>9.2</b></a></li> 1472 <li><em>RFC4918</em> <a href="#rfc.xref.RFC4918.1">2</a>, <a href="#RFC4918"><b>9.2</b></a></li> 1473 <li><em>RFC5234</em> <a href="#rfc.xref.RFC5234.1">1.2</a>, <a href="#rfc.xref.RFC5234.2">1.2</a>, <a href="#RFC5234"><b>9.1</b></a><ul> 1432 1474 <li><em>Appendix B.1</em> <a href="#rfc.xref.RFC5234.2">1.2</a></li> 1433 1475 </ul> … … 1439 1481 <li>Status Codes 1440 1482 <ul> 1441 <li>304 Not Modified <a href="#rfc.iref.s.2"><b>4.1</b></a>, <a href="#rfc.xref.status.304.1"> 5.1</a></li>1442 <li>412 Precondition Failed <a href="#rfc.iref.s.3"><b>4.2</b></a>, <a href="#rfc.xref.status.412.1"> 5.1</a></li>1483 <li>304 Not Modified <a href="#rfc.iref.s.2"><b>4.1</b></a>, <a href="#rfc.xref.status.304.1">6.1</a></li> 1484 <li>412 Precondition Failed <a href="#rfc.iref.s.3"><b>4.2</b></a>, <a href="#rfc.xref.status.412.1">6.1</a></li> 1443 1485 </ul> 1444 1486 </li>
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