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| 12 | <title>Diff: draft-ietf-httpbis-p4-conditional-04.txt - draft-ietf-httpbis-p4-conditional-05.txt</title>
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| 41 | <table border="0" cellpadding="0" cellspacing="0">
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| 42 | <tr bgcolor="orange"><th></th><th> draft-ietf-httpbis-p4-conditional-04.txt </th><th> </th><th> draft-ietf-httpbis-p4-conditional-05.txt </th><th></th></tr>
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| 43 | <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
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| 44 | <tr><td class="lineno" valign="top"></td><td class="left">Network Working Group R. Fielding, Ed.</td><td> </td><td class="right">Network Working Group R. Fielding, Ed.</td><td class="lineno" valign="top"></td></tr>
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| 45 | <tr><td class="lineno" valign="top"></td><td class="left">Internet-Draft Day Software</td><td> </td><td class="right">Internet-Draft Day Software</td><td class="lineno" valign="top"></td></tr>
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| 46 | <tr><td class="lineno" valign="top"></td><td class="left">Obsoletes: 2616 (if approved) J. Gettys</td><td> </td><td class="right">Obsoletes: 2616 (if approved) J. Gettys</td><td class="lineno" valign="top"></td></tr>
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| 47 | <tr><td class="lineno" valign="top"></td><td class="left">Intended status: Standards Track One Laptop per Child</td><td> </td><td class="right">Intended status: Standards Track One Laptop per Child</td><td class="lineno" valign="top"></td></tr>
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| 48 | <tr><td><a name="diff0001" /></td></tr>
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| 49 | <tr><td class="lineno" valign="top"></td><td class="lblock">Expires: Ma<span class="delete">rch 2, 2009</span> J. Mogul</td><td> </td><td class="rblock">Expires: Ma<span class="insert">y 20, 2009 </span> J. Mogul</td><td class="lineno" valign="top"></td></tr>
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| 50 | <tr><td class="lineno" valign="top"></td><td class="left"> HP</td><td> </td><td class="right"> HP</td><td class="lineno" valign="top"></td></tr>
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| 51 | <tr><td class="lineno" valign="top"></td><td class="left"> H. Frystyk</td><td> </td><td class="right"> H. Frystyk</td><td class="lineno" valign="top"></td></tr>
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| 52 | <tr><td class="lineno" valign="top"></td><td class="left"> Microsoft</td><td> </td><td class="right"> Microsoft</td><td class="lineno" valign="top"></td></tr>
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| 53 | <tr><td class="lineno" valign="top"></td><td class="left"> L. Masinter</td><td> </td><td class="right"> L. Masinter</td><td class="lineno" valign="top"></td></tr>
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| 54 | <tr><td class="lineno" valign="top"></td><td class="left"> Adobe Systems</td><td> </td><td class="right"> Adobe Systems</td><td class="lineno" valign="top"></td></tr>
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| 55 | <tr><td class="lineno" valign="top"></td><td class="left"> P. Leach</td><td> </td><td class="right"> P. Leach</td><td class="lineno" valign="top"></td></tr>
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| 56 | <tr><td class="lineno" valign="top"></td><td class="left"> Microsoft</td><td> </td><td class="right"> Microsoft</td><td class="lineno" valign="top"></td></tr>
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| 57 | <tr><td class="lineno" valign="top"></td><td class="left"> T. Berners-Lee</td><td> </td><td class="right"> T. Berners-Lee</td><td class="lineno" valign="top"></td></tr>
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| 58 | <tr><td class="lineno" valign="top"></td><td class="left"> W3C/MIT</td><td> </td><td class="right"> W3C/MIT</td><td class="lineno" valign="top"></td></tr>
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| 59 | <tr><td class="lineno" valign="top"></td><td class="left"> Y. Lafon, Ed.</td><td> </td><td class="right"> Y. Lafon, Ed.</td><td class="lineno" valign="top"></td></tr>
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| 60 | <tr><td class="lineno" valign="top"></td><td class="left"> W3C</td><td> </td><td class="right"> W3C</td><td class="lineno" valign="top"></td></tr>
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| 61 | <tr><td class="lineno" valign="top"></td><td class="left"> J. Reschke, Ed.</td><td> </td><td class="right"> J. Reschke, Ed.</td><td class="lineno" valign="top"></td></tr>
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| 62 | <tr><td class="lineno" valign="top"></td><td class="left"> greenbytes</td><td> </td><td class="right"> greenbytes</td><td class="lineno" valign="top"></td></tr>
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| 63 | <tr><td><a name="diff0002" /></td></tr>
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| 64 | <tr><td class="lineno" valign="top"></td><td class="lblock"> <span class="delete"> August 29</span>, 2008</td><td> </td><td class="rblock"> <span class="insert">November 16</span>, 2008</td><td class="lineno" valign="top"></td></tr>
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| 65 | <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
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| 66 | <tr><td class="lineno" valign="top"></td><td class="left"> HTTP/1.1, part 4: Conditional Requests</td><td> </td><td class="right"> HTTP/1.1, part 4: Conditional Requests</td><td class="lineno" valign="top"></td></tr>
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| 67 | <tr><td><a name="diff0003" /></td></tr>
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| 68 | <tr><td class="lineno" valign="top"></td><td class="lblock"> draft-ietf-httpbis-p4-conditional-0<span class="delete">4</span></td><td> </td><td class="rblock"> draft-ietf-httpbis-p4-conditional-0<span class="insert">5</span></td><td class="lineno" valign="top"></td></tr>
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| 69 | <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
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| 70 | <tr><td class="lineno" valign="top"></td><td class="left">Status of this Memo</td><td> </td><td class="right">Status of this Memo</td><td class="lineno" valign="top"></td></tr>
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| 71 | <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
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| 72 | <tr><td class="lineno" valign="top"></td><td class="left"> By submitting this Internet-Draft, each author represents that any</td><td> </td><td class="right"> By submitting this Internet-Draft, each author represents that any</td><td class="lineno" valign="top"></td></tr>
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| 73 | <tr><td class="lineno" valign="top"></td><td class="left"> applicable patent or other IPR claims of which he or she is aware</td><td> </td><td class="right"> applicable patent or other IPR claims of which he or she is aware</td><td class="lineno" valign="top"></td></tr>
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| 74 | <tr><td class="lineno" valign="top"></td><td class="left"> have been or will be disclosed, and any of which he or she becomes</td><td> </td><td class="right"> have been or will be disclosed, and any of which he or she becomes</td><td class="lineno" valign="top"></td></tr>
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| 75 | <tr><td class="lineno" valign="top"></td><td class="left"> aware will be disclosed, in accordance with Section 6 of BCP 79.</td><td> </td><td class="right"> aware will be disclosed, in accordance with Section 6 of BCP 79.</td><td class="lineno" valign="top"></td></tr>
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| 76 | <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
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| 77 | <tr><td class="lineno" valign="top"></td><td class="left"> Internet-Drafts are working documents of the Internet Engineering</td><td> </td><td class="right"> Internet-Drafts are working documents of the Internet Engineering</td><td class="lineno" valign="top"></td></tr>
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| 78 | <tr><td class="lineno" valign="top"></td><td class="left"> Task Force (IETF), its areas, and its working groups. Note that</td><td> </td><td class="right"> Task Force (IETF), its areas, and its working groups. Note that</td><td class="lineno" valign="top"></td></tr>
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| 79 | <tr><td class="lineno"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno"></td></tr>
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| 80 | <tr bgcolor="gray" ><td></td><th><a name="part-l2" /><small>skipping to change at</small><em> page 1, line 49</em></th><th> </th><th><a name="part-r2" /><small>skipping to change at</small><em> page 1, line 49</em></th><td></td></tr>
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| 81 | <tr><td class="lineno" valign="top"></td><td class="left"> and may be updated, replaced, or obsoleted by other documents at any</td><td> </td><td class="right"> and may be updated, replaced, or obsoleted by other documents at any</td><td class="lineno" valign="top"></td></tr>
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| 82 | <tr><td class="lineno" valign="top"></td><td class="left"> time. It is inappropriate to use Internet-Drafts as reference</td><td> </td><td class="right"> time. It is inappropriate to use Internet-Drafts as reference</td><td class="lineno" valign="top"></td></tr>
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| 83 | <tr><td class="lineno" valign="top"></td><td class="left"> material or to cite them other than as "work in progress."</td><td> </td><td class="right"> material or to cite them other than as "work in progress."</td><td class="lineno" valign="top"></td></tr>
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| 84 | <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
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| 85 | <tr><td class="lineno" valign="top"></td><td class="left"> The list of current Internet-Drafts can be accessed at</td><td> </td><td class="right"> The list of current Internet-Drafts can be accessed at</td><td class="lineno" valign="top"></td></tr>
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| 86 | <tr><td class="lineno" valign="top"></td><td class="left"> http://www.ietf.org/ietf/1id-abstracts.txt.</td><td> </td><td class="right"> http://www.ietf.org/ietf/1id-abstracts.txt.</td><td class="lineno" valign="top"></td></tr>
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| 87 | <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
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| 88 | <tr><td class="lineno" valign="top"></td><td class="left"> The list of Internet-Draft Shadow Directories can be accessed at</td><td> </td><td class="right"> The list of Internet-Draft Shadow Directories can be accessed at</td><td class="lineno" valign="top"></td></tr>
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| 89 | <tr><td class="lineno" valign="top"></td><td class="left"> http://www.ietf.org/shadow.html.</td><td> </td><td class="right"> http://www.ietf.org/shadow.html.</td><td class="lineno" valign="top"></td></tr>
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| 90 | <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
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| 91 | <tr><td><a name="diff0004" /></td></tr>
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| 92 | <tr><td class="lineno" valign="top"></td><td class="lblock"> This Internet-Draft will expire on Ma<span class="delete">rch 2</span>, 2009.</td><td> </td><td class="rblock"> This Internet-Draft will expire on Ma<span class="insert">y 20</span>, 2009.</td><td class="lineno" valign="top"></td></tr>
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| 93 | <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
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| 94 | <tr><td class="lineno" valign="top"></td><td class="left">Abstract</td><td> </td><td class="right">Abstract</td><td class="lineno" valign="top"></td></tr>
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| 95 | <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
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| 96 | <tr><td class="lineno" valign="top"></td><td class="left"> The Hypertext Transfer Protocol (HTTP) is an application-level</td><td> </td><td class="right"> The Hypertext Transfer Protocol (HTTP) is an application-level</td><td class="lineno" valign="top"></td></tr>
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| 97 | <tr><td class="lineno" valign="top"></td><td class="left"> protocol for distributed, collaborative, hypermedia information</td><td> </td><td class="right"> protocol for distributed, collaborative, hypermedia information</td><td class="lineno" valign="top"></td></tr>
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| 98 | <tr><td class="lineno" valign="top"></td><td class="left"> systems. HTTP has been in use by the World Wide Web global</td><td> </td><td class="right"> systems. HTTP has been in use by the World Wide Web global</td><td class="lineno" valign="top"></td></tr>
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| 99 | <tr><td class="lineno" valign="top"></td><td class="left"> information initiative since 1990. This document is Part 4 of the</td><td> </td><td class="right"> information initiative since 1990. This document is Part 4 of the</td><td class="lineno" valign="top"></td></tr>
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| 100 | <tr><td class="lineno" valign="top"></td><td class="left"> seven-part specification that defines the protocol referred to as</td><td> </td><td class="right"> seven-part specification that defines the protocol referred to as</td><td class="lineno" valign="top"></td></tr>
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| 101 | <tr><td class="lineno" valign="top"></td><td class="left"> "HTTP/1.1" and, taken together, obsoletes RFC 2616. Part 4 defines</td><td> </td><td class="right"> "HTTP/1.1" and, taken together, obsoletes RFC 2616. Part 4 defines</td><td class="lineno" valign="top"></td></tr>
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| 102 | <tr><td class="lineno" valign="top"></td><td class="left"> request header fields for indicating conditional requests and the</td><td> </td><td class="right"> request header fields for indicating conditional requests and the</td><td class="lineno" valign="top"></td></tr>
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| 103 | <tr><td class="lineno" valign="top"></td><td class="left"> rules for constructing responses to those requests.</td><td> </td><td class="right"> rules for constructing responses to those requests.</td><td class="lineno" valign="top"></td></tr>
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| 104 | <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
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| 105 | <tr><td class="lineno" valign="top"></td><td class="left">Editorial Note (To be removed by RFC Editor)</td><td> </td><td class="right">Editorial Note (To be removed by RFC Editor)</td><td class="lineno" valign="top"></td></tr>
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| 106 | <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
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| 107 | <tr><td class="lineno" valign="top"></td><td class="left"> Discussion of this draft should take place on the HTTPBIS working</td><td> </td><td class="right"> Discussion of this draft should take place on the HTTPBIS working</td><td class="lineno" valign="top"></td></tr>
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| 108 | <tr><td class="lineno" valign="top"></td><td class="left"> group mailing list (ietf-http-wg@w3.org). The current issues list is</td><td> </td><td class="right"> group mailing list (ietf-http-wg@w3.org). The current issues list is</td><td class="lineno" valign="top"></td></tr>
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| 109 | <tr><td><a name="diff0005" /></td></tr>
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| 110 | <tr><td class="lineno" valign="top"></td><td class="lblock"> at <http://<span class="delete">www.</span>tools.ietf.org/wg/httpbis/trac/report/11> and related</td><td> </td><td class="rblock"> at <http://tools.ietf.org/wg/httpbis/trac/report/11> and related</td><td class="lineno" valign="top"></td></tr>
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| 111 | <tr><td class="lineno" valign="top"></td><td class="left"> documents (including fancy diffs) can be found at</td><td> </td><td class="right"> documents (including fancy diffs) can be found at</td><td class="lineno" valign="top"></td></tr>
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| 112 | <tr><td><a name="diff0006" /></td></tr>
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| 113 | <tr><td class="lineno" valign="top"></td><td class="lblock"> <http://<span class="delete">www.</span>tools.ietf.org/wg/httpbis/>.</td><td> </td><td class="rblock"> <http://tools.ietf.org/wg/httpbis/>.</td><td class="lineno" valign="top"></td></tr>
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| 114 | <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
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| 115 | <tr><td><a name="diff0007" /></td></tr>
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| 116 | <tr><td class="lineno" valign="top"></td><td class="lblock"> The changes in this draft are summarized in Appendix B.<span class="delete">4</span>.</td><td> </td><td class="rblock"> The changes in this draft are summarized in Appendix B.<span class="insert">6</span>.</td><td class="lineno" valign="top"></td></tr>
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| 117 | <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
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| 118 | <tr><td class="lineno" valign="top"></td><td class="left">Table of Contents</td><td> </td><td class="right">Table of Contents</td><td class="lineno" valign="top"></td></tr>
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| 119 | <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
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| 120 | <tr><td class="lineno" valign="top"></td><td class="left"> 1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . 4</td><td> </td><td class="right"> 1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . 4</td><td class="lineno" valign="top"></td></tr>
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| 121 | <tr><td class="lineno" valign="top"></td><td class="left"> 1.1. Requirements . . . . . . . . . . . . . . . . . . . . . . . 4</td><td> </td><td class="right"> 1.1. Requirements . . . . . . . . . . . . . . . . . . . . . . . 4</td><td class="lineno" valign="top"></td></tr>
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| 122 | <tr><td class="lineno" valign="top"></td><td class="left"> 2. Notational Conventions and Generic Grammar . . . . . . . . . . 4</td><td> </td><td class="right"> 2. Notational Conventions and Generic Grammar . . . . . . . . . . 4</td><td class="lineno" valign="top"></td></tr>
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| 123 | <tr><td class="lineno" valign="top"></td><td class="left"> 3. Entity Tags . . . . . . . . . . . . . . . . . . . . . . . . . 5</td><td> </td><td class="right"> 3. Entity Tags . . . . . . . . . . . . . . . . . . . . . . . . . 5</td><td class="lineno" valign="top"></td></tr>
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| 124 | <tr><td class="lineno" valign="top"></td><td class="left"> 4. Status Code Definitions . . . . . . . . . . . . . . . . . . . 5</td><td> </td><td class="right"> 4. Status Code Definitions . . . . . . . . . . . . . . . . . . . 5</td><td class="lineno" valign="top"></td></tr>
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| 125 | <tr><td class="lineno" valign="top"></td><td class="left"> 4.1. 304 Not Modified . . . . . . . . . . . . . . . . . . . . . 5</td><td> </td><td class="right"> 4.1. 304 Not Modified . . . . . . . . . . . . . . . . . . . . . 5</td><td class="lineno" valign="top"></td></tr>
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| 126 | <tr><td class="lineno" valign="top"></td><td class="left"> 4.2. 412 Precondition Failed . . . . . . . . . . . . . . . . . 6</td><td> </td><td class="right"> 4.2. 412 Precondition Failed . . . . . . . . . . . . . . . . . 6</td><td class="lineno" valign="top"></td></tr>
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| 127 | <tr><td class="lineno"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno"></td></tr>
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| 128 | <tr bgcolor="gray" ><td></td><th><a name="part-l3" /><small>skipping to change at</small><em> page 3, line 25</em></th><th> </th><th><a name="part-r3" /><small>skipping to change at</small><em> page 3, line 25</em></th><td></td></tr>
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| 129 | <tr><td class="lineno" valign="top"></td><td class="left"> 6. Rules for When to Use Entity Tags and Last-Modified Dates . . 9</td><td> </td><td class="right"> 6. Rules for When to Use Entity Tags and Last-Modified Dates . . 9</td><td class="lineno" valign="top"></td></tr>
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| 130 | <tr><td class="lineno" valign="top"></td><td class="left"> 7. Header Field Definitions . . . . . . . . . . . . . . . . . . . 11</td><td> </td><td class="right"> 7. Header Field Definitions . . . . . . . . . . . . . . . . . . . 11</td><td class="lineno" valign="top"></td></tr>
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| 131 | <tr><td class="lineno" valign="top"></td><td class="left"> 7.1. ETag . . . . . . . . . . . . . . . . . . . . . . . . . . . 11</td><td> </td><td class="right"> 7.1. ETag . . . . . . . . . . . . . . . . . . . . . . . . . . . 11</td><td class="lineno" valign="top"></td></tr>
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| 132 | <tr><td class="lineno" valign="top"></td><td class="left"> 7.2. If-Match . . . . . . . . . . . . . . . . . . . . . . . . . 12</td><td> </td><td class="right"> 7.2. If-Match . . . . . . . . . . . . . . . . . . . . . . . . . 12</td><td class="lineno" valign="top"></td></tr>
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| 133 | <tr><td class="lineno" valign="top"></td><td class="left"> 7.3. If-Modified-Since . . . . . . . . . . . . . . . . . . . . 13</td><td> </td><td class="right"> 7.3. If-Modified-Since . . . . . . . . . . . . . . . . . . . . 13</td><td class="lineno" valign="top"></td></tr>
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| 134 | <tr><td class="lineno" valign="top"></td><td class="left"> 7.4. If-None-Match . . . . . . . . . . . . . . . . . . . . . . 14</td><td> </td><td class="right"> 7.4. If-None-Match . . . . . . . . . . . . . . . . . . . . . . 14</td><td class="lineno" valign="top"></td></tr>
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| 135 | <tr><td class="lineno" valign="top"></td><td class="left"> 7.5. If-Unmodified-Since . . . . . . . . . . . . . . . . . . . 16</td><td> </td><td class="right"> 7.5. If-Unmodified-Since . . . . . . . . . . . . . . . . . . . 16</td><td class="lineno" valign="top"></td></tr>
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| 136 | <tr><td class="lineno" valign="top"></td><td class="left"> 7.6. Last-Modified . . . . . . . . . . . . . . . . . . . . . . 16</td><td> </td><td class="right"> 7.6. Last-Modified . . . . . . . . . . . . . . . . . . . . . . 16</td><td class="lineno" valign="top"></td></tr>
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| 137 | <tr><td class="lineno" valign="top"></td><td class="left"> 8. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 17</td><td> </td><td class="right"> 8. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 17</td><td class="lineno" valign="top"></td></tr>
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| 138 | <tr><td class="lineno" valign="top"></td><td class="left"> 8.1. Message Header Registration . . . . . . . . . . . . . . . 17</td><td> </td><td class="right"> 8.1. Message Header Registration . . . . . . . . . . . . . . . 17</td><td class="lineno" valign="top"></td></tr>
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| 139 | <tr><td><a name="diff0008" /></td></tr>
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| 140 | <tr><td class="lineno" valign="top"></td><td class="lblock"> 9. Security Considerations . . . . . . . . . . . . . . . . . . . 1<span class="delete">7</span></td><td> </td><td class="rblock"> 9. Security Considerations . . . . . . . . . . . . . . . . . . . 1<span class="insert">8</span></td><td class="lineno" valign="top"></td></tr>
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| 141 | <tr><td class="lineno" valign="top"></td><td class="left"> 10. Acknowledgments . . . . . . . . . . . . . . . . . . . . . . . 18</td><td> </td><td class="right"> 10. Acknowledgments . . . . . . . . . . . . . . . . . . . . . . . 18</td><td class="lineno" valign="top"></td></tr>
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| 142 | <tr><td class="lineno" valign="top"></td><td class="left"> 11. References . . . . . . . . . . . . . . . . . . . . . . . . . . 18</td><td> </td><td class="right"> 11. References . . . . . . . . . . . . . . . . . . . . . . . . . . 18</td><td class="lineno" valign="top"></td></tr>
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| 143 | <tr><td class="lineno" valign="top"></td><td class="left"> 11.1. Normative References . . . . . . . . . . . . . . . . . . . 18</td><td> </td><td class="right"> 11.1. Normative References . . . . . . . . . . . . . . . . . . . 18</td><td class="lineno" valign="top"></td></tr>
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| 144 | <tr><td class="lineno" valign="top"></td><td class="left"> 11.2. Informative References . . . . . . . . . . . . . . . . . . 18</td><td> </td><td class="right"> 11.2. Informative References . . . . . . . . . . . . . . . . . . 18</td><td class="lineno" valign="top"></td></tr>
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| 145 | <tr><td class="lineno" valign="top"></td><td class="left"> Appendix A. Compatibility with Previous Versions . . . . . . . . 18</td><td> </td><td class="right"> Appendix A. Compatibility with Previous Versions . . . . . . . . 18</td><td class="lineno" valign="top"></td></tr>
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| 146 | <tr><td><a name="diff0009" /></td></tr>
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| 147 | <tr><td class="lineno" valign="top"></td><td class="lblock"> A.1. Changes from RFC 2616 . . . . . . . . . . . . . . . . . . 1<span class="delete">8</span></td><td> </td><td class="rblock"> A.1. Changes from RFC 2616 . . . . . . . . . . . . . . . . . . 1<span class="insert">9</span></td><td class="lineno" valign="top"></td></tr>
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| 148 | <tr><td class="lineno" valign="top"></td><td class="left"> Appendix B. Change Log (to be removed by RFC Editor before</td><td> </td><td class="right"> Appendix B. Change Log (to be removed by RFC Editor before</td><td class="lineno" valign="top"></td></tr>
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| 149 | <tr><td class="lineno" valign="top"></td><td class="left"> publication) . . . . . . . . . . . . . . . . . . . . 19</td><td> </td><td class="right"> publication) . . . . . . . . . . . . . . . . . . . . 19</td><td class="lineno" valign="top"></td></tr>
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| 150 | <tr><td class="lineno" valign="top"></td><td class="left"> B.1. Since RFC2616 . . . . . . . . . . . . . . . . . . . . . . 19</td><td> </td><td class="right"> B.1. Since RFC2616 . . . . . . . . . . . . . . . . . . . . . . 19</td><td class="lineno" valign="top"></td></tr>
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| 151 | <tr><td class="lineno" valign="top"></td><td class="left"> B.2. Since draft-ietf-httpbis-p4-conditional-00 . . . . . . . . 19</td><td> </td><td class="right"> B.2. Since draft-ietf-httpbis-p4-conditional-00 . . . . . . . . 19</td><td class="lineno" valign="top"></td></tr>
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| 152 | <tr><td class="lineno" valign="top"></td><td class="left"> B.3. Since draft-ietf-httpbis-p4-conditional-01 . . . . . . . . 19</td><td> </td><td class="right"> B.3. Since draft-ietf-httpbis-p4-conditional-01 . . . . . . . . 19</td><td class="lineno" valign="top"></td></tr>
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| 153 | <tr><td class="lineno" valign="top"></td><td class="left"> B.4. Since draft-ietf-httpbis-p4-conditional-02 . . . . . . . . 19</td><td> </td><td class="right"> B.4. Since draft-ietf-httpbis-p4-conditional-02 . . . . . . . . 19</td><td class="lineno" valign="top"></td></tr>
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| 154 | <tr><td><a name="diff0010" /></td></tr>
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| 155 | <tr><td class="lineno" valign="top"></td><td class="lblock"> B.5. Since draft-ietf-httpbis-p4-conditional-03 . . . . . . . . <span class="delete">19</span></td><td> </td><td class="rblock"> B.5. Since draft-ietf-httpbis-p4-conditional-03 . . . . . . . . <span class="insert">20</span></td><td class="lineno" valign="top"></td></tr>
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| 156 | <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert"> B.6. Since draft-ietf-httpbis-p4-conditional-04 . . . . . . . . 20</span></td><td class="lineno" valign="top"></td></tr>
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| 157 | <tr><td class="lineno" valign="top"></td><td class="left"> Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20</td><td> </td><td class="right"> Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20</td><td class="lineno" valign="top"></td></tr>
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| 158 | <tr><td class="lineno" valign="top"></td><td class="left"> Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . . 21</td><td> </td><td class="right"> Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . . 21</td><td class="lineno" valign="top"></td></tr>
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| 159 | <tr><td class="lineno" valign="top"></td><td class="left"> Intellectual Property and Copyright Statements . . . . . . . . . . 24</td><td> </td><td class="right"> Intellectual Property and Copyright Statements . . . . . . . . . . 24</td><td class="lineno" valign="top"></td></tr>
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| 160 | <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
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| 161 | <tr><td class="lineno" valign="top"></td><td class="left">1. Introduction</td><td> </td><td class="right">1. Introduction</td><td class="lineno" valign="top"></td></tr>
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| 162 | <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
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| 163 | <tr><td class="lineno" valign="top"></td><td class="left"> This document defines HTTP/1.1 response metadata for indicating</td><td> </td><td class="right"> This document defines HTTP/1.1 response metadata for indicating</td><td class="lineno" valign="top"></td></tr>
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| 164 | <tr><td class="lineno" valign="top"></td><td class="left"> potential changes to payload content, including modification time</td><td> </td><td class="right"> potential changes to payload content, including modification time</td><td class="lineno" valign="top"></td></tr>
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| 165 | <tr><td class="lineno" valign="top"></td><td class="left"> stamps and opaque entity-tags, and the HTTP conditional request</td><td> </td><td class="right"> stamps and opaque entity-tags, and the HTTP conditional request</td><td class="lineno" valign="top"></td></tr>
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| 166 | <tr><td class="lineno" valign="top"></td><td class="left"> mechanisms that allow preconditions to be placed on a request method.</td><td> </td><td class="right"> mechanisms that allow preconditions to be placed on a request method.</td><td class="lineno" valign="top"></td></tr>
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| 167 | <tr><td class="lineno"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno"></td></tr>
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| 168 | <tr bgcolor="gray" ><td></td><th><a name="part-l4" /><small>skipping to change at</small><em> page 4, line 47</em></th><th> </th><th><a name="part-r4" /><small>skipping to change at</small><em> page 4, line 47</em></th><td></td></tr>
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| 169 | <tr><td class="lineno" valign="top"></td><td class="left"> REQUIRED level and all the SHOULD level requirements for its</td><td> </td><td class="right"> REQUIRED level and all the SHOULD level requirements for its</td><td class="lineno" valign="top"></td></tr>
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| 170 | <tr><td class="lineno" valign="top"></td><td class="left"> protocols is said to be "unconditionally compliant"; one that</td><td> </td><td class="right"> protocols is said to be "unconditionally compliant"; one that</td><td class="lineno" valign="top"></td></tr>
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| 171 | <tr><td class="lineno" valign="top"></td><td class="left"> satisfies all the MUST level requirements but not all the SHOULD</td><td> </td><td class="right"> satisfies all the MUST level requirements but not all the SHOULD</td><td class="lineno" valign="top"></td></tr>
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| 172 | <tr><td class="lineno" valign="top"></td><td class="left"> level requirements for its protocols is said to be "conditionally</td><td> </td><td class="right"> level requirements for its protocols is said to be "conditionally</td><td class="lineno" valign="top"></td></tr>
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| 173 | <tr><td class="lineno" valign="top"></td><td class="left"> compliant."</td><td> </td><td class="right"> compliant."</td><td class="lineno" valign="top"></td></tr>
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| 174 | <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
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| 175 | <tr><td class="lineno" valign="top"></td><td class="left">2. Notational Conventions and Generic Grammar</td><td> </td><td class="right">2. Notational Conventions and Generic Grammar</td><td class="lineno" valign="top"></td></tr>
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| 176 | <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
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| 177 | <tr><td class="lineno" valign="top"></td><td class="left"> This specification uses the ABNF syntax defined in Section 2.1 of</td><td> </td><td class="right"> This specification uses the ABNF syntax defined in Section 2.1 of</td><td class="lineno" valign="top"></td></tr>
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| 178 | <tr><td class="lineno" valign="top"></td><td class="left"> [Part1] and the core rules defined in Section 2.2 of [Part1]:</td><td> </td><td class="right"> [Part1] and the core rules defined in Section 2.2 of [Part1]:</td><td class="lineno" valign="top"></td></tr>
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| 179 | <tr><td><a name="diff0011" /></td></tr>
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| 180 | <tr><td class="lineno" valign="top"></td><td class="lblock"><span class="delete"> [[abnf.dep: ABNF syntax and basic rules will be adopted from RFC</span></td><td> </td><td class="rblock"></td><td class="lineno" valign="top"></td></tr>
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| 181 | <tr><td class="lineno" valign="top"></td><td class="lblock"><span class="delete"> 5234, see <http://tools.ietf.org/wg/httpbis/trac/ticket/36>.]]</span></td><td> </td><td class="rblock"></td><td class="lineno" valign="top"></td></tr>
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| 182 | <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
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| 183 | <tr><td class="lineno" valign="top"></td><td class="left"> quoted-string = <quoted-string, defined in [Part1], Section 2.2></td><td> </td><td class="right"> quoted-string = <quoted-string, defined in [Part1], Section 2.2></td><td class="lineno" valign="top"></td></tr>
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| 184 | <tr><td><a name="diff0012" /></td></tr>
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| 185 | <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert"> OWS = <OWS, defined in [Part1], Section 2.2></span></td><td class="lineno" valign="top"></td></tr>
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| 186 | <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert"> </span></td><td class="lineno" valign="top"></td></tr>
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| 187 | <tr><td class="lineno" valign="top"></td><td class="left"> The ABNF rules below are defined in other parts:</td><td> </td><td class="right"> The ABNF rules below are defined in other parts:</td><td class="lineno" valign="top"></td></tr>
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| 188 | <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
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| 189 | <tr><td class="lineno" valign="top"></td><td class="left"> HTTP-date = <HTTP-date, defined in [Part1], Section 3.3.1></td><td> </td><td class="right"> HTTP-date = <HTTP-date, defined in [Part1], Section 3.3.1></td><td class="lineno" valign="top"></td></tr>
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| 190 | <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
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| 191 | <tr><td class="lineno" valign="top"></td><td class="left">3. Entity Tags</td><td> </td><td class="right">3. Entity Tags</td><td class="lineno" valign="top"></td></tr>
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| 192 | <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
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| 193 | <tr><td class="lineno" valign="top"></td><td class="left"> Entity tags are used for comparing two or more entities from the same</td><td> </td><td class="right"> Entity tags are used for comparing two or more entities from the same</td><td class="lineno" valign="top"></td></tr>
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| 194 | <tr><td class="lineno" valign="top"></td><td class="left"> requested resource. HTTP/1.1 uses entity tags in the ETag</td><td> </td><td class="right"> requested resource. HTTP/1.1 uses entity tags in the ETag</td><td class="lineno" valign="top"></td></tr>
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| 195 | <tr><td class="lineno" valign="top"></td><td class="left"> (Section 7.1), If-Match (Section 7.2), If-None-Match (Section 7.4),</td><td> </td><td class="right"> (Section 7.1), If-Match (Section 7.2), If-None-Match (Section 7.4),</td><td class="lineno" valign="top"></td></tr>
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| 196 | <tr><td class="lineno" valign="top"></td><td class="left"> and If-Range (Section 6.3 of [Part5]) header fields. The definition</td><td> </td><td class="right"> and If-Range (Section 6.3 of [Part5]) header fields. The definition</td><td class="lineno" valign="top"></td></tr>
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| 197 | <tr><td class="lineno"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno"></td></tr>
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| 198 | <tr bgcolor="gray" ><td></td><th><a name="part-l5" /><small>skipping to change at</small><em> page 11, line 30</em></th><th> </th><th><a name="part-r5" /><small>skipping to change at</small><em> page 11, line 27</em></th><td></td></tr>
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| 199 | <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
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| 200 | <tr><td class="lineno" valign="top"></td><td class="left"> This section defines the syntax and semantics of HTTP/1.1 header</td><td> </td><td class="right"> This section defines the syntax and semantics of HTTP/1.1 header</td><td class="lineno" valign="top"></td></tr>
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| 201 | <tr><td class="lineno" valign="top"></td><td class="left"> fields related to conditional requests.</td><td> </td><td class="right"> fields related to conditional requests.</td><td class="lineno" valign="top"></td></tr>
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| 202 | <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
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| 203 | <tr><td class="lineno" valign="top"></td><td class="left"> For entity-header fields, both sender and recipient refer to either</td><td> </td><td class="right"> For entity-header fields, both sender and recipient refer to either</td><td class="lineno" valign="top"></td></tr>
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| 204 | <tr><td class="lineno" valign="top"></td><td class="left"> the client or the server, depending on who sends and who receives the</td><td> </td><td class="right"> the client or the server, depending on who sends and who receives the</td><td class="lineno" valign="top"></td></tr>
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| 205 | <tr><td class="lineno" valign="top"></td><td class="left"> entity.</td><td> </td><td class="right"> entity.</td><td class="lineno" valign="top"></td></tr>
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| 206 | <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
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| 207 | <tr><td class="lineno" valign="top"></td><td class="left">7.1. ETag</td><td> </td><td class="right">7.1. ETag</td><td class="lineno" valign="top"></td></tr>
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| 208 | <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
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| 209 | <tr><td><a name="diff0013" /></td></tr>
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| 210 | <tr><td class="lineno" valign="top"></td><td class="lblock"> The <span class="delete">ETag response-header field</span> provides the current value of the</td><td> </td><td class="rblock"> The <span class="insert">response-header field "ETag"</span> provides the current value of the</td><td class="lineno" valign="top"></td></tr>
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| 211 | <tr><td class="lineno" valign="top"></td><td class="lblock"> entity tag <span class="delete">for the requested variant. The headers used with entity</span></td><td> </td><td class="rblock"> entity tag <span class="insert">(see Section 3) for the requested variant. The headers</span></td><td class="lineno" valign="top"></td></tr>
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| 212 | <tr><td class="lineno" valign="top"></td><td class="lblock"> <span class="delete">tags are described in Sections 7.2 and 7.4 of this document, and in</span></td><td> </td><td class="rblock"> <span class="insert">used with entity tags are described in Sections 7.2 and 7.4 of this</span></td><td class="lineno" valign="top"></td></tr>
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| 213 | <tr><td class="lineno" valign="top"></td><td class="lblock"> <span class="delete">Section 6.3 of [Part5]. The entity tag MAY be used for comparison</span></td><td> </td><td class="rblock"> <span class="insert">document, and in Section 6.3 of [Part5]. The entity tag MAY be used</span></td><td class="lineno" valign="top"></td></tr>
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| 214 | <tr><td class="lineno" valign="top"></td><td class="lblock"> <span class="delete">with other entities from the same resource (see Section 5).</span></td><td> </td><td class="rblock"> <span class="insert">for comparison with other entities from the same resource (see</span></td><td class="lineno" valign="top"></td></tr>
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| 215 | <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert"> Section 5).</span></td><td class="lineno" valign="top"></td></tr>
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| 216 | <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
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| 217 | <tr><td><a name="diff0014" /></td></tr>
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| 218 | <tr><td class="lineno" valign="top"></td><td class="lblock"> ETag <span class="delete">= "ETag" ":" entity-tag</span></td><td> </td><td class="rblock"> ETag <span class="insert"> = "ETag" ":" OWS ETag-v</span></td><td class="lineno" valign="top"></td></tr>
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| 219 | <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert"> ETag-v = entity-tag</span></td><td class="lineno" valign="top"></td></tr>
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| 220 | <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
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| 221 | <tr><td class="lineno" valign="top"></td><td class="left"> Examples:</td><td> </td><td class="right"> Examples:</td><td class="lineno" valign="top"></td></tr>
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| 222 | <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
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| 223 | <tr><td class="lineno" valign="top"></td><td class="left"> ETag: "xyzzy"</td><td> </td><td class="right"> ETag: "xyzzy"</td><td class="lineno" valign="top"></td></tr>
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| 224 | <tr><td class="lineno" valign="top"></td><td class="left"> ETag: W/"xyzzy"</td><td> </td><td class="right"> ETag: W/"xyzzy"</td><td class="lineno" valign="top"></td></tr>
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| 225 | <tr><td class="lineno" valign="top"></td><td class="left"> ETag: ""</td><td> </td><td class="right"> ETag: ""</td><td class="lineno" valign="top"></td></tr>
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| 226 | <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
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| 227 | <tr><td class="lineno" valign="top"></td><td class="left"> The ETag response-header field value, an entity tag, provides for an</td><td> </td><td class="right"> The ETag response-header field value, an entity tag, provides for an</td><td class="lineno" valign="top"></td></tr>
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| 228 | <tr><td class="lineno" valign="top"></td><td class="left"> "opaque" cache validator. This might allow more reliable validation</td><td> </td><td class="right"> "opaque" cache validator. This might allow more reliable validation</td><td class="lineno" valign="top"></td></tr>
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| 229 | <tr><td class="lineno" valign="top"></td><td class="left"> in situations where it is inconvenient to store modification dates,</td><td> </td><td class="right"> in situations where it is inconvenient to store modification dates,</td><td class="lineno" valign="top"></td></tr>
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| 230 | <tr><td class="lineno"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno"></td></tr>
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| 231 | <tr bgcolor="gray" ><td></td><th><a name="part-l6" /><small>skipping to change at</small><em> page 12, line 13</em></th><th> </th><th><a name="part-r6" /><small>skipping to change at</small><em> page 12, line 12</em></th><td></td></tr>
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| 232 | <tr><td class="lineno" valign="top"></td><td class="left"> The principle behind entity tags is that only the service author</td><td> </td><td class="right"> The principle behind entity tags is that only the service author</td><td class="lineno" valign="top"></td></tr>
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| 233 | <tr><td class="lineno" valign="top"></td><td class="left"> knows the semantics of a resource well enough to select an</td><td> </td><td class="right"> knows the semantics of a resource well enough to select an</td><td class="lineno" valign="top"></td></tr>
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| 234 | <tr><td class="lineno" valign="top"></td><td class="left"> appropriate cache validation mechanism, and the specification of any</td><td> </td><td class="right"> appropriate cache validation mechanism, and the specification of any</td><td class="lineno" valign="top"></td></tr>
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| 235 | <tr><td class="lineno" valign="top"></td><td class="left"> validator comparison function more complex than byte-equality would</td><td> </td><td class="right"> validator comparison function more complex than byte-equality would</td><td class="lineno" valign="top"></td></tr>
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| 236 | <tr><td class="lineno" valign="top"></td><td class="left"> open up a can of worms. Thus, comparisons of any other headers</td><td> </td><td class="right"> open up a can of worms. Thus, comparisons of any other headers</td><td class="lineno" valign="top"></td></tr>
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| 237 | <tr><td class="lineno" valign="top"></td><td class="left"> (except Last-Modified, for compatibility with HTTP/1.0) are never</td><td> </td><td class="right"> (except Last-Modified, for compatibility with HTTP/1.0) are never</td><td class="lineno" valign="top"></td></tr>
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| 238 | <tr><td class="lineno" valign="top"></td><td class="left"> used for purposes of validating a cache entry.</td><td> </td><td class="right"> used for purposes of validating a cache entry.</td><td class="lineno" valign="top"></td></tr>
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| 239 | <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
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| 240 | <tr><td class="lineno" valign="top"></td><td class="left">7.2. If-Match</td><td> </td><td class="right">7.2. If-Match</td><td class="lineno" valign="top"></td></tr>
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| 241 | <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
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| 242 | <tr><td><a name="diff0015" /></td></tr>
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| 243 | <tr><td class="lineno" valign="top"></td><td class="lblock"> The <span class="delete">If-Match request-header field</span> is used with a method to make it</td><td> </td><td class="rblock"> The <span class="insert">request-header field "If-Match"</span> is used with a method to make it</td><td class="lineno" valign="top"></td></tr>
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| 244 | <tr><td class="lineno" valign="top"></td><td class="left"> conditional. A client that has one or more entities previously</td><td> </td><td class="right"> conditional. A client that has one or more entities previously</td><td class="lineno" valign="top"></td></tr>
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| 245 | <tr><td class="lineno" valign="top"></td><td class="left"> obtained from the resource can verify that one of those entities is</td><td> </td><td class="right"> obtained from the resource can verify that one of those entities is</td><td class="lineno" valign="top"></td></tr>
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| 246 | <tr><td class="lineno" valign="top"></td><td class="left"> current by including a list of their associated entity tags in the</td><td> </td><td class="right"> current by including a list of their associated entity tags in the</td><td class="lineno" valign="top"></td></tr>
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| 247 | <tr><td class="lineno" valign="top"></td><td class="left"> If-Match header field. Entity tags are defined in Section 3. The</td><td> </td><td class="right"> If-Match header field. Entity tags are defined in Section 3. The</td><td class="lineno" valign="top"></td></tr>
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| 248 | <tr><td class="lineno" valign="top"></td><td class="left"> purpose of this feature is to allow efficient updates of cached</td><td> </td><td class="right"> purpose of this feature is to allow efficient updates of cached</td><td class="lineno" valign="top"></td></tr>
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| 249 | <tr><td class="lineno" valign="top"></td><td class="left"> information with a minimum amount of transaction overhead. It is</td><td> </td><td class="right"> information with a minimum amount of transaction overhead. It is</td><td class="lineno" valign="top"></td></tr>
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| 250 | <tr><td class="lineno" valign="top"></td><td class="left"> also used, on updating requests, to prevent inadvertent modification</td><td> </td><td class="right"> also used, on updating requests, to prevent inadvertent modification</td><td class="lineno" valign="top"></td></tr>
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| 251 | <tr><td class="lineno" valign="top"></td><td class="left"> of the wrong version of a resource. As a special case, the value "*"</td><td> </td><td class="right"> of the wrong version of a resource. As a special case, the value "*"</td><td class="lineno" valign="top"></td></tr>
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| 252 | <tr><td class="lineno" valign="top"></td><td class="left"> matches any current entity of the resource.</td><td> </td><td class="right"> matches any current entity of the resource.</td><td class="lineno" valign="top"></td></tr>
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| 253 | <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
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| 254 | <tr><td><a name="diff0016" /></td></tr>
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| 255 | <tr><td class="lineno" valign="top"></td><td class="lblock"> If-Match <span class="delete">= "If-Match" ":" ( "*" | 1#entity-tag )</span></td><td> </td><td class="rblock"> If-Match <span class="insert"> = "If-Match" ":" OWS If-Match-v</span></td><td class="lineno" valign="top"></td></tr>
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| 256 | <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert"> If-Match-v = "*" / 1#entity-tag</span></td><td class="lineno" valign="top"></td></tr>
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| 257 | <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
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| 258 | <tr><td class="lineno" valign="top"></td><td class="left"> If any of the entity tags match the entity tag of the entity that</td><td> </td><td class="right"> If any of the entity tags match the entity tag of the entity that</td><td class="lineno" valign="top"></td></tr>
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| 259 | <tr><td class="lineno" valign="top"></td><td class="left"> would have been returned in the response to a similar GET request</td><td> </td><td class="right"> would have been returned in the response to a similar GET request</td><td class="lineno" valign="top"></td></tr>
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| 260 | <tr><td class="lineno" valign="top"></td><td class="left"> (without the If-Match header) on that resource, or if "*" is given</td><td> </td><td class="right"> (without the If-Match header) on that resource, or if "*" is given</td><td class="lineno" valign="top"></td></tr>
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| 261 | <tr><td class="lineno" valign="top"></td><td class="left"> and any current entity exists for that resource, then the server MAY</td><td> </td><td class="right"> and any current entity exists for that resource, then the server MAY</td><td class="lineno" valign="top"></td></tr>
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| 262 | <tr><td class="lineno" valign="top"></td><td class="left"> perform the requested method as if the If-Match header field did not</td><td> </td><td class="right"> perform the requested method as if the If-Match header field did not</td><td class="lineno" valign="top"></td></tr>
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| 263 | <tr><td class="lineno" valign="top"></td><td class="left"> exist.</td><td> </td><td class="right"> exist.</td><td class="lineno" valign="top"></td></tr>
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| 264 | <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
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| 265 | <tr><td class="lineno" valign="top"></td><td class="left"> A server MUST use the strong comparison function (see Section 5) to</td><td> </td><td class="right"> A server MUST use the strong comparison function (see Section 5) to</td><td class="lineno" valign="top"></td></tr>
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| 266 | <tr><td class="lineno" valign="top"></td><td class="left"> compare the entity tags in If-Match.</td><td> </td><td class="right"> compare the entity tags in If-Match.</td><td class="lineno" valign="top"></td></tr>
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| 267 | <tr><td class="lineno"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno"></td></tr>
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| 268 | <tr bgcolor="gray" ><td></td><th><a name="part-l7" /><small>skipping to change at</small><em> page 13, line 23</em></th><th> </th><th><a name="part-r7" /><small>skipping to change at</small><em> page 13, line 23</em></th><td></td></tr>
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| 269 | <tr><td class="lineno" valign="top"></td><td class="left"> If-Match: "xyzzy"</td><td> </td><td class="right"> If-Match: "xyzzy"</td><td class="lineno" valign="top"></td></tr>
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| 270 | <tr><td class="lineno" valign="top"></td><td class="left"> If-Match: "xyzzy", "r2d2xxxx", "c3piozzzz"</td><td> </td><td class="right"> If-Match: "xyzzy", "r2d2xxxx", "c3piozzzz"</td><td class="lineno" valign="top"></td></tr>
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| 271 | <tr><td class="lineno" valign="top"></td><td class="left"> If-Match: *</td><td> </td><td class="right"> If-Match: *</td><td class="lineno" valign="top"></td></tr>
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| 272 | <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
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| 273 | <tr><td class="lineno" valign="top"></td><td class="left"> The result of a request having both an If-Match header field and</td><td> </td><td class="right"> The result of a request having both an If-Match header field and</td><td class="lineno" valign="top"></td></tr>
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| 274 | <tr><td class="lineno" valign="top"></td><td class="left"> either an If-None-Match or an If-Modified-Since header fields is</td><td> </td><td class="right"> either an If-None-Match or an If-Modified-Since header fields is</td><td class="lineno" valign="top"></td></tr>
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| 275 | <tr><td class="lineno" valign="top"></td><td class="left"> undefined by this specification.</td><td> </td><td class="right"> undefined by this specification.</td><td class="lineno" valign="top"></td></tr>
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| 276 | <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
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| 277 | <tr><td class="lineno" valign="top"></td><td class="left">7.3. If-Modified-Since</td><td> </td><td class="right">7.3. If-Modified-Since</td><td class="lineno" valign="top"></td></tr>
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| 278 | <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
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| 279 | <tr><td><a name="diff0017" /></td></tr>
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| 280 | <tr><td class="lineno" valign="top"></td><td class="lblock"> The <span class="delete">If-Modified-Since request-header field</span> is used with a method to</td><td> </td><td class="rblock"> The <span class="insert">request-header field "If-Modified-Since"</span> is used with a method to</td><td class="lineno" valign="top"></td></tr>
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| 281 | <tr><td class="lineno" valign="top"></td><td class="left"> make it conditional: if the requested variant has not been modified</td><td> </td><td class="right"> make it conditional: if the requested variant has not been modified</td><td class="lineno" valign="top"></td></tr>
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| 282 | <tr><td class="lineno" valign="top"></td><td class="left"> since the time specified in this field, an entity will not be</td><td> </td><td class="right"> since the time specified in this field, an entity will not be</td><td class="lineno" valign="top"></td></tr>
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| 283 | <tr><td class="lineno" valign="top"></td><td class="left"> returned from the server; instead, a 304 (Not Modified) response will</td><td> </td><td class="right"> returned from the server; instead, a 304 (Not Modified) response will</td><td class="lineno" valign="top"></td></tr>
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| 284 | <tr><td class="lineno" valign="top"></td><td class="left"> be returned without any message-body.</td><td> </td><td class="right"> be returned without any message-body.</td><td class="lineno" valign="top"></td></tr>
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| 285 | <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
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| 286 | <tr><td><a name="diff0018" /></td></tr>
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| 287 | <tr><td class="lineno" valign="top"></td><td class="lblock"> If-Modified-Since <span class="delete">= "If-Modified-Since" ":" HTTP-date</span></td><td> </td><td class="rblock"> If-Modified-Since <span class="insert"> = "If-Modified-Since" ":" OWS</span></td><td class="lineno" valign="top"></td></tr>
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| 288 | <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert"> If-Modified-Since-v</span></td><td class="lineno" valign="top"></td></tr>
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| 289 | <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert"> If-Modified-Since-v = HTTP-date</span></td><td class="lineno" valign="top"></td></tr>
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| 290 | <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
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| 291 | <tr><td class="lineno" valign="top"></td><td class="left"> An example of the field is:</td><td> </td><td class="right"> An example of the field is:</td><td class="lineno" valign="top"></td></tr>
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| 292 | <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
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| 293 | <tr><td class="lineno" valign="top"></td><td class="left"> If-Modified-Since: Sat, 29 Oct 1994 19:43:31 GMT</td><td> </td><td class="right"> If-Modified-Since: Sat, 29 Oct 1994 19:43:31 GMT</td><td class="lineno" valign="top"></td></tr>
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| 294 | <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
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| 295 | <tr><td class="lineno" valign="top"></td><td class="left"> A GET method with an If-Modified-Since header and no Range header</td><td> </td><td class="right"> A GET method with an If-Modified-Since header and no Range header</td><td class="lineno" valign="top"></td></tr>
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| 296 | <tr><td class="lineno" valign="top"></td><td class="left"> requests that the identified entity be transferred only if it has</td><td> </td><td class="right"> requests that the identified entity be transferred only if it has</td><td class="lineno" valign="top"></td></tr>
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| 297 | <tr><td class="lineno" valign="top"></td><td class="left"> been modified since the date given by the If-Modified-Since header.</td><td> </td><td class="right"> been modified since the date given by the If-Modified-Since header.</td><td class="lineno" valign="top"></td></tr>
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| 298 | <tr><td class="lineno" valign="top"></td><td class="left"> The algorithm for determining this includes the following cases:</td><td> </td><td class="right"> The algorithm for determining this includes the following cases:</td><td class="lineno" valign="top"></td></tr>
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| 299 | <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
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| 300 | <tr><td class="lineno"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno"></td></tr>
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| 301 | <tr bgcolor="gray" ><td></td><th><a name="part-l8" /><small>skipping to change at</small><em> page 14, line 41</em></th><th> </th><th><a name="part-r8" /><small>skipping to change at</small><em> page 14, line 43</em></th><td></td></tr>
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| 302 | <tr><td class="lineno" valign="top"></td><td class="left"> to the server's clock. Corrections for different time bases</td><td> </td><td class="right"> to the server's clock. Corrections for different time bases</td><td class="lineno" valign="top"></td></tr>
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| 303 | <tr><td class="lineno" valign="top"></td><td class="left"> between client and server are at best approximate due to network</td><td> </td><td class="right"> between client and server are at best approximate due to network</td><td class="lineno" valign="top"></td></tr>
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| 304 | <tr><td class="lineno" valign="top"></td><td class="left"> latency.</td><td> </td><td class="right"> latency.</td><td class="lineno" valign="top"></td></tr>
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| 305 | <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
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| 306 | <tr><td class="lineno" valign="top"></td><td class="left"> The result of a request having both an If-Modified-Since header field</td><td> </td><td class="right"> The result of a request having both an If-Modified-Since header field</td><td class="lineno" valign="top"></td></tr>
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| 307 | <tr><td class="lineno" valign="top"></td><td class="left"> and either an If-Match or an If-Unmodified-Since header fields is</td><td> </td><td class="right"> and either an If-Match or an If-Unmodified-Since header fields is</td><td class="lineno" valign="top"></td></tr>
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| 308 | <tr><td class="lineno" valign="top"></td><td class="left"> undefined by this specification.</td><td> </td><td class="right"> undefined by this specification.</td><td class="lineno" valign="top"></td></tr>
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| 309 | <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
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| 310 | <tr><td class="lineno" valign="top"></td><td class="left">7.4. If-None-Match</td><td> </td><td class="right">7.4. If-None-Match</td><td class="lineno" valign="top"></td></tr>
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| 311 | <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
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| 312 | <tr><td><a name="diff0019" /></td></tr>
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| 313 | <tr><td class="lineno" valign="top"></td><td class="lblock"> The <span class="delete">If-None-Match request-header field is used with a method to make</span></td><td> </td><td class="rblock"> The <span class="insert">request-header field "If-None-Match" is used with a method to</span></td><td class="lineno" valign="top"></td></tr>
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| 314 | <tr><td class="lineno" valign="top"></td><td class="lblock"> <span class="delete">it conditional. A client that has one or more entities previously</span></td><td> </td><td class="rblock"> <span class="insert">make it conditional. A client that has one or more entities</span></td><td class="lineno" valign="top"></td></tr>
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| 315 | <tr><td class="lineno" valign="top"></td><td class="lblock"> <span class="delete">obtained from the resource can verify that none of those entities is</span></td><td> </td><td class="rblock"> <span class="insert">previously obtained from the resource can verify that none of those</span></td><td class="lineno" valign="top"></td></tr>
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| 316 | <tr><td class="lineno" valign="top"></td><td class="lblock"> <span class="delete">current by including a list of their associated entity tags in the</span></td><td> </td><td class="rblock"> <span class="insert">entities is current by including a list of their associated entity</span></td><td class="lineno" valign="top"></td></tr>
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| 317 | <tr><td class="lineno" valign="top"></td><td class="lblock"> <span class="delete">If-None-Match header field. The purpose of this feature is to allow</span></td><td> </td><td class="rblock"> <span class="insert">tags in the If-None-Match header field. The purpose of this feature</span></td><td class="lineno" valign="top"></td></tr>
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| 318 | <tr><td class="lineno" valign="top"></td><td class="lblock"> <span class="delete">efficient updates of cached information with a minimum amount of</span></td><td> </td><td class="rblock"> <span class="insert">is to allow efficient updates of cached information with a minimum</span></td><td class="lineno" valign="top"></td></tr>
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| 319 | <tr><td class="lineno" valign="top"></td><td class="lblock"> <span class="delete">transaction overhead. It is also used to prevent a method (e.g.</span></td><td> </td><td class="rblock"> <span class="insert">amount of transaction overhead. It is also used to prevent a method</span></td><td class="lineno" valign="top"></td></tr>
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| 320 | <tr><td class="lineno" valign="top"></td><td class="lblock"> <span class="delete">PUT) from inadvertently modifying an existing resource when the</span></td><td> </td><td class="rblock"> <span class="insert">(e.g. PUT) from inadvertently modifying an existing resource when</span></td><td class="lineno" valign="top"></td></tr>
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| 321 | <tr><td class="lineno" valign="top"></td><td class="lblock"> client believes that the resource does not exist.</td><td> </td><td class="rblock"> <span class="insert">the </span>client believes that the resource does not exist.</td><td class="lineno" valign="top"></td></tr>
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| 322 | <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
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| 323 | <tr><td class="lineno" valign="top"></td><td class="left"> As a special case, the value "*" matches any current entity of the</td><td> </td><td class="right"> As a special case, the value "*" matches any current entity of the</td><td class="lineno" valign="top"></td></tr>
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| 324 | <tr><td class="lineno" valign="top"></td><td class="left"> resource.</td><td> </td><td class="right"> resource.</td><td class="lineno" valign="top"></td></tr>
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| 325 | <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
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| 326 | <tr><td><a name="diff0020" /></td></tr>
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| 327 | <tr><td class="lineno" valign="top"></td><td class="lblock"> If-None-Match <span class="delete">= "If-None-Match" ":" ( "*" | 1#entity-tag )</span></td><td> </td><td class="rblock"> If-None-Match <span class="insert"> = "If-None-Match" ":" OWS If-None-Match-v</span></td><td class="lineno" valign="top"></td></tr>
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| 328 | <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert"> If-None-Match-v = "*" / 1#entity-tag</span></td><td class="lineno" valign="top"></td></tr>
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| 329 | <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
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| 330 | <tr><td class="lineno" valign="top"></td><td class="left"> If any of the entity tags match the entity tag of the entity that</td><td> </td><td class="right"> If any of the entity tags match the entity tag of the entity that</td><td class="lineno" valign="top"></td></tr>
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| 331 | <tr><td class="lineno" valign="top"></td><td class="left"> would have been returned in the response to a similar GET request</td><td> </td><td class="right"> would have been returned in the response to a similar GET request</td><td class="lineno" valign="top"></td></tr>
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| 332 | <tr><td class="lineno" valign="top"></td><td class="left"> (without the If-None-Match header) on that resource, or if "*" is</td><td> </td><td class="right"> (without the If-None-Match header) on that resource, or if "*" is</td><td class="lineno" valign="top"></td></tr>
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| 333 | <tr><td class="lineno" valign="top"></td><td class="left"> given and any current entity exists for that resource, then the</td><td> </td><td class="right"> given and any current entity exists for that resource, then the</td><td class="lineno" valign="top"></td></tr>
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| 334 | <tr><td class="lineno" valign="top"></td><td class="left"> server MUST NOT perform the requested method, unless required to do</td><td> </td><td class="right"> server MUST NOT perform the requested method, unless required to do</td><td class="lineno" valign="top"></td></tr>
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| 335 | <tr><td class="lineno" valign="top"></td><td class="left"> so because the resource's modification date fails to match that</td><td> </td><td class="right"> so because the resource's modification date fails to match that</td><td class="lineno" valign="top"></td></tr>
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| 336 | <tr><td class="lineno" valign="top"></td><td class="left"> supplied in an If-Modified-Since header field in the request.</td><td> </td><td class="right"> supplied in an If-Modified-Since header field in the request.</td><td class="lineno" valign="top"></td></tr>
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| 337 | <tr><td class="lineno" valign="top"></td><td class="left"> Instead, if the request method was GET or HEAD, the server SHOULD</td><td> </td><td class="right"> Instead, if the request method was GET or HEAD, the server SHOULD</td><td class="lineno" valign="top"></td></tr>
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| 338 | <tr><td class="lineno" valign="top"></td><td class="left"> respond with a 304 (Not Modified) response, including the cache-</td><td> </td><td class="right"> respond with a 304 (Not Modified) response, including the cache-</td><td class="lineno" valign="top"></td></tr>
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| 339 | <tr><td class="lineno"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno"></td></tr>
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| 340 | <tr bgcolor="gray" ><td></td><th><a name="part-l9" /><small>skipping to change at</small><em> page 15, line 49</em></th><th> </th><th><a name="part-r9" /><small>skipping to change at</small><em> page 16, line 4</em></th><td></td></tr>
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| 341 | <tr><td class="lineno" valign="top"></td><td class="left"> not exist. This feature is intended to be useful in preventing races</td><td> </td><td class="right"> not exist. This feature is intended to be useful in preventing races</td><td class="lineno" valign="top"></td></tr>
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| 342 | <tr><td class="lineno" valign="top"></td><td class="left"> between PUT operations.</td><td> </td><td class="right"> between PUT operations.</td><td class="lineno" valign="top"></td></tr>
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| 343 | <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
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| 344 | <tr><td class="lineno" valign="top"></td><td class="left"> Examples:</td><td> </td><td class="right"> Examples:</td><td class="lineno" valign="top"></td></tr>
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| 345 | <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
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| 346 | <tr><td class="lineno" valign="top"></td><td class="left"> If-None-Match: "xyzzy"</td><td> </td><td class="right"> If-None-Match: "xyzzy"</td><td class="lineno" valign="top"></td></tr>
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| 347 | <tr><td class="lineno" valign="top"></td><td class="left"> If-None-Match: W/"xyzzy"</td><td> </td><td class="right"> If-None-Match: W/"xyzzy"</td><td class="lineno" valign="top"></td></tr>
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| 348 | <tr><td class="lineno" valign="top"></td><td class="left"> If-None-Match: "xyzzy", "r2d2xxxx", "c3piozzzz"</td><td> </td><td class="right"> If-None-Match: "xyzzy", "r2d2xxxx", "c3piozzzz"</td><td class="lineno" valign="top"></td></tr>
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| 349 | <tr><td class="lineno" valign="top"></td><td class="left"> If-None-Match: W/"xyzzy", W/"r2d2xxxx", W/"c3piozzzz"</td><td> </td><td class="right"> If-None-Match: W/"xyzzy", W/"r2d2xxxx", W/"c3piozzzz"</td><td class="lineno" valign="top"></td></tr>
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| 350 | <tr><td class="lineno" valign="top"></td><td class="left"> If-None-Match: *</td><td> </td><td class="right"> If-None-Match: *</td><td class="lineno" valign="top"></td></tr>
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| 351 | <tr><td><a name="diff0021" /></td></tr>
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| 352 | <tr><td class="lineno" valign="top"></td><td class="lblock"><span class="delete"> </span></td><td> </td><td class="rblock"></td><td class="lineno" valign="top"></td></tr>
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| 353 | <tr><td class="lineno" valign="top"></td><td class="left"> The result of a request having both an If-None-Match header field and</td><td> </td><td class="right"> The result of a request having both an If-None-Match header field and</td><td class="lineno" valign="top"></td></tr>
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| 354 | <tr><td class="lineno" valign="top"></td><td class="left"> either an If-Match or an If-Unmodified-Since header fields is</td><td> </td><td class="right"> either an If-Match or an If-Unmodified-Since header fields is</td><td class="lineno" valign="top"></td></tr>
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| 355 | <tr><td class="lineno" valign="top"></td><td class="left"> undefined by this specification.</td><td> </td><td class="right"> undefined by this specification.</td><td class="lineno" valign="top"></td></tr>
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| 356 | <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
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| 357 | <tr><td class="lineno" valign="top"></td><td class="left">7.5. If-Unmodified-Since</td><td> </td><td class="right">7.5. If-Unmodified-Since</td><td class="lineno" valign="top"></td></tr>
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| 358 | <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
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| 359 | <tr><td><a name="diff0022" /></td></tr>
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| 360 | <tr><td class="lineno" valign="top"></td><td class="lblock"> The <span class="delete">If-Unmodified-Since request-header field is used with a method to</span></td><td> </td><td class="rblock"> The <span class="insert">request-header field "If-Unmodified-Since" is used with a method</span></td><td class="lineno" valign="top"></td></tr>
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| 361 | <tr><td class="lineno" valign="top"></td><td class="lblock"> <span class="delete">make it conditional. If the requested resource has not been modified</span></td><td> </td><td class="rblock"> <span class="insert">to make it conditional. If the requested resource has not been</span></td><td class="lineno" valign="top"></td></tr>
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| 362 | <tr><td class="lineno" valign="top"></td><td class="lblock"> <span class="delete">since the time specified in this field, the server SHOULD perform the</span></td><td> </td><td class="rblock"> <span class="insert">modified since the time specified in this field, the server SHOULD</span></td><td class="lineno" valign="top"></td></tr>
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| 363 | <tr><td class="lineno" valign="top"></td><td class="lblock"> <span class="delete">requested operation as if the If-Unmodified-Since header were not</span></td><td> </td><td class="rblock"> <span class="insert">perform the requested operation as if the If-Unmodified-Since header</span></td><td class="lineno" valign="top"></td></tr>
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| 364 | <tr><td class="lineno" valign="top"></td><td class="lblock"> present.</td><td> </td><td class="rblock"> <span class="insert">were not </span>present.</td><td class="lineno" valign="top"></td></tr>
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| 365 | <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
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| 366 | <tr><td class="lineno" valign="top"></td><td class="left"> If the requested variant has been modified since the specified time,</td><td> </td><td class="right"> If the requested variant has been modified since the specified time,</td><td class="lineno" valign="top"></td></tr>
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| 367 | <tr><td class="lineno" valign="top"></td><td class="left"> the server MUST NOT perform the requested operation, and MUST return</td><td> </td><td class="right"> the server MUST NOT perform the requested operation, and MUST return</td><td class="lineno" valign="top"></td></tr>
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| 368 | <tr><td class="lineno" valign="top"></td><td class="left"> a 412 (Precondition Failed).</td><td> </td><td class="right"> a 412 (Precondition Failed).</td><td class="lineno" valign="top"></td></tr>
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| 369 | <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
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| 370 | <tr><td><a name="diff0023" /></td></tr>
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| 371 | <tr><td class="lineno" valign="top"></td><td class="lblock"> If-Unmodified-Since <span class="delete">= "If-Unmodified-Since" ":" HTTP-date</span></td><td> </td><td class="rblock"> If-Unmodified-Since <span class="insert"> = "If-Unmodified-Since" ":" OWS</span></td><td class="lineno" valign="top"></td></tr>
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| 372 | <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert"> If-Unmodified-Since-v</span></td><td class="lineno" valign="top"></td></tr>
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| 373 | <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert"> If-Unmodified-Since-v = HTTP-date</span></td><td class="lineno" valign="top"></td></tr>
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| 374 | <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
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| 375 | <tr><td class="lineno" valign="top"></td><td class="left"> An example of the field is:</td><td> </td><td class="right"> An example of the field is:</td><td class="lineno" valign="top"></td></tr>
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| 376 | <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
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| 377 | <tr><td class="lineno" valign="top"></td><td class="left"> If-Unmodified-Since: Sat, 29 Oct 1994 19:43:31 GMT</td><td> </td><td class="right"> If-Unmodified-Since: Sat, 29 Oct 1994 19:43:31 GMT</td><td class="lineno" valign="top"></td></tr>
|
|---|
| 378 | <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
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| 379 | <tr><td class="lineno" valign="top"></td><td class="left"> If the request normally (i.e., without the If-Unmodified-Since</td><td> </td><td class="right"> If the request normally (i.e., without the If-Unmodified-Since</td><td class="lineno" valign="top"></td></tr>
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| 380 | <tr><td class="lineno" valign="top"></td><td class="left"> header) would result in anything other than a 2xx or 412 status, the</td><td> </td><td class="right"> header) would result in anything other than a 2xx or 412 status, the</td><td class="lineno" valign="top"></td></tr>
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| 381 | <tr><td class="lineno" valign="top"></td><td class="left"> If-Unmodified-Since header SHOULD be ignored.</td><td> </td><td class="right"> If-Unmodified-Since header SHOULD be ignored.</td><td class="lineno" valign="top"></td></tr>
|
|---|
| 382 | <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
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| 383 | <tr><td class="lineno" valign="top"></td><td class="left"> If the specified date is invalid, the header is ignored.</td><td> </td><td class="right"> If the specified date is invalid, the header is ignored.</td><td class="lineno" valign="top"></td></tr>
|
|---|
| 384 | <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
|
|---|
| 385 | <tr><td class="lineno" valign="top"></td><td class="left"> The result of a request having both an If-Unmodified-Since header</td><td> </td><td class="right"> The result of a request having both an If-Unmodified-Since header</td><td class="lineno" valign="top"></td></tr>
|
|---|
| 386 | <tr><td class="lineno" valign="top"></td><td class="left"> field and either an If-None-Match or an If-Modified-Since header</td><td> </td><td class="right"> field and either an If-None-Match or an If-Modified-Since header</td><td class="lineno" valign="top"></td></tr>
|
|---|
| 387 | <tr><td class="lineno" valign="top"></td><td class="left"> fields is undefined by this specification.</td><td> </td><td class="right"> fields is undefined by this specification.</td><td class="lineno" valign="top"></td></tr>
|
|---|
| 388 | <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
|
|---|
| 389 | <tr><td class="lineno" valign="top"></td><td class="left">7.6. Last-Modified</td><td> </td><td class="right">7.6. Last-Modified</td><td class="lineno" valign="top"></td></tr>
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|---|
| 390 | <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
|
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| 391 | <tr><td><a name="diff0024" /></td></tr>
|
|---|
| 392 | <tr><td class="lineno" valign="top"></td><td class="lblock"> The <span class="delete">Last-Modified entity-header field indicates the date and time at</span></td><td> </td><td class="rblock"> The <span class="insert">entity-header field "Last-Modified" indicates the date and time</span></td><td class="lineno" valign="top"></td></tr>
|
|---|
| 393 | <tr><td class="lineno" valign="top"></td><td class="lblock"> which the origin server believes the variant was last modified.</td><td> </td><td class="rblock"> <span class="insert">at </span>which the origin server believes the variant was last modified.</td><td class="lineno" valign="top"></td></tr>
|
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| 394 | <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
|
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| 395 | <tr><td><a name="diff0025" /></td></tr>
|
|---|
| 396 | <tr><td class="lineno" valign="top"></td><td class="lblock"> Last-Modified <span class="delete">= "Last-Modified" ":" HTTP-date</span></td><td> </td><td class="rblock"> Last-Modified <span class="insert"> = "Last-Modified" ":" OWS Last-Modified-v</span></td><td class="lineno" valign="top"></td></tr>
|
|---|
| 397 | <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert"> Last-Modified-v = HTTP-date</span></td><td class="lineno" valign="top"></td></tr>
|
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| 398 | <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
|
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| 399 | <tr><td class="lineno" valign="top"></td><td class="left"> An example of its use is</td><td> </td><td class="right"> An example of its use is</td><td class="lineno" valign="top"></td></tr>
|
|---|
| 400 | <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
|
|---|
| 401 | <tr><td class="lineno" valign="top"></td><td class="left"> Last-Modified: Tue, 15 Nov 1994 12:45:26 GMT</td><td> </td><td class="right"> Last-Modified: Tue, 15 Nov 1994 12:45:26 GMT</td><td class="lineno" valign="top"></td></tr>
|
|---|
| 402 | <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
|
|---|
| 403 | <tr><td class="lineno" valign="top"></td><td class="left"> The exact meaning of this header field depends on the implementation</td><td> </td><td class="right"> The exact meaning of this header field depends on the implementation</td><td class="lineno" valign="top"></td></tr>
|
|---|
| 404 | <tr><td class="lineno" valign="top"></td><td class="left"> of the origin server and the nature of the original resource. For</td><td> </td><td class="right"> of the origin server and the nature of the original resource. For</td><td class="lineno" valign="top"></td></tr>
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|---|
| 405 | <tr><td class="lineno" valign="top"></td><td class="left"> files, it may be just the file system last-modified time. For</td><td> </td><td class="right"> files, it may be just the file system last-modified time. For</td><td class="lineno" valign="top"></td></tr>
|
|---|
| 406 | <tr><td class="lineno" valign="top"></td><td class="left"> entities with dynamically included parts, it may be the most recent</td><td> </td><td class="right"> entities with dynamically included parts, it may be the most recent</td><td class="lineno" valign="top"></td></tr>
|
|---|
| 407 | <tr><td class="lineno" valign="top"></td><td class="left"> of the set of last-modify times for its component parts. For</td><td> </td><td class="right"> of the set of last-modify times for its component parts. For</td><td class="lineno" valign="top"></td></tr>
|
|---|
| 408 | <tr><td class="lineno"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno"></td></tr>
|
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| 409 | <tr bgcolor="gray" ><td></td><th><a name="part-l10" /><small>skipping to change at</small><em> page 18, line 14</em></th><th> </th><th><a name="part-r10" /><small>skipping to change at</small><em> page 18, line 19</em></th><td></td></tr>
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| 410 | <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
|
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| 411 | <tr><td class="lineno" valign="top"></td><td class="left">10. Acknowledgments</td><td> </td><td class="right">10. Acknowledgments</td><td class="lineno" valign="top"></td></tr>
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| 412 | <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
|
|---|
| 413 | <tr><td class="lineno" valign="top"></td><td class="left">11. References</td><td> </td><td class="right">11. References</td><td class="lineno" valign="top"></td></tr>
|
|---|
| 414 | <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
|
|---|
| 415 | <tr><td class="lineno" valign="top"></td><td class="left">11.1. Normative References</td><td> </td><td class="right">11.1. Normative References</td><td class="lineno" valign="top"></td></tr>
|
|---|
| 416 | <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
|
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| 417 | <tr><td class="lineno" valign="top"></td><td class="left"> [Part1] Fielding, R., Ed., Gettys, J., Mogul, J., Frystyk, H.,</td><td> </td><td class="right"> [Part1] Fielding, R., Ed., Gettys, J., Mogul, J., Frystyk, H.,</td><td class="lineno" valign="top"></td></tr>
|
|---|
| 418 | <tr><td class="lineno" valign="top"></td><td class="left"> Masinter, L., Leach, P., Berners-Lee, T., Lafon, Y., Ed.,</td><td> </td><td class="right"> Masinter, L., Leach, P., Berners-Lee, T., Lafon, Y., Ed.,</td><td class="lineno" valign="top"></td></tr>
|
|---|
| 419 | <tr><td class="lineno" valign="top"></td><td class="left"> and J. Reschke, Ed., "HTTP/1.1, part 1: URIs, Connections,</td><td> </td><td class="right"> and J. Reschke, Ed., "HTTP/1.1, part 1: URIs, Connections,</td><td class="lineno" valign="top"></td></tr>
|
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| 420 | <tr><td><a name="diff0026" /></td></tr>
|
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| 421 | <tr><td class="lineno" valign="top"></td><td class="lblock"> and Message Parsing", draft-ietf-httpbis-p1-messaging-0<span class="delete">4</span></td><td> </td><td class="rblock"> and Message Parsing", draft-ietf-httpbis-p1-messaging-0<span class="insert">5</span></td><td class="lineno" valign="top"></td></tr>
|
|---|
| 422 | <tr><td class="lineno" valign="top"></td><td class="lblock"> (work in progress), <span class="delete">August</span> 2008.</td><td> </td><td class="rblock"> (work in progress), <span class="insert">November</span> 2008.</td><td class="lineno" valign="top"></td></tr>
|
|---|
| 423 | <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
|
|---|
| 424 | <tr><td class="lineno" valign="top"></td><td class="left"> [Part5] Fielding, R., Ed., Gettys, J., Mogul, J., Frystyk, H.,</td><td> </td><td class="right"> [Part5] Fielding, R., Ed., Gettys, J., Mogul, J., Frystyk, H.,</td><td class="lineno" valign="top"></td></tr>
|
|---|
| 425 | <tr><td class="lineno" valign="top"></td><td class="left"> Masinter, L., Leach, P., Berners-Lee, T., Lafon, Y., Ed.,</td><td> </td><td class="right"> Masinter, L., Leach, P., Berners-Lee, T., Lafon, Y., Ed.,</td><td class="lineno" valign="top"></td></tr>
|
|---|
| 426 | <tr><td class="lineno" valign="top"></td><td class="left"> and J. Reschke, Ed., "HTTP/1.1, part 5: Range Requests and</td><td> </td><td class="right"> and J. Reschke, Ed., "HTTP/1.1, part 5: Range Requests and</td><td class="lineno" valign="top"></td></tr>
|
|---|
| 427 | <tr><td><a name="diff0027" /></td></tr>
|
|---|
| 428 | <tr><td class="lineno" valign="top"></td><td class="lblock"> Partial Responses", draft-ietf-httpbis-p5-range-0<span class="delete">4</span> (work</td><td> </td><td class="rblock"> Partial Responses", draft-ietf-httpbis-p5-range-0<span class="insert">5</span> (work</td><td class="lineno" valign="top"></td></tr>
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| 429 | <tr><td class="lineno" valign="top"></td><td class="lblock"> in progress), <span class="delete">August</span> 2008.</td><td> </td><td class="rblock"> in progress), <span class="insert">November</span> 2008.</td><td class="lineno" valign="top"></td></tr>
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| 430 | <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
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| 431 | <tr><td class="lineno" valign="top"></td><td class="left"> [Part6] Fielding, R., Ed., Gettys, J., Mogul, J., Frystyk, H.,</td><td> </td><td class="right"> [Part6] Fielding, R., Ed., Gettys, J., Mogul, J., Frystyk, H.,</td><td class="lineno" valign="top"></td></tr>
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| 432 | <tr><td class="lineno" valign="top"></td><td class="left"> Masinter, L., Leach, P., Berners-Lee, T., Lafon, Y., Ed.,</td><td> </td><td class="right"> Masinter, L., Leach, P., Berners-Lee, T., Lafon, Y., Ed.,</td><td class="lineno" valign="top"></td></tr>
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| 433 | <tr><td class="lineno" valign="top"></td><td class="left"> and J. Reschke, Ed., "HTTP/1.1, part 6: Caching",</td><td> </td><td class="right"> and J. Reschke, Ed., "HTTP/1.1, part 6: Caching",</td><td class="lineno" valign="top"></td></tr>
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| 434 | <tr><td><a name="diff0028" /></td></tr>
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| 435 | <tr><td class="lineno" valign="top"></td><td class="lblock"> draft-ietf-httpbis-p6-cache-0<span class="delete">4</span> (work in progress),</td><td> </td><td class="rblock"> draft-ietf-httpbis-p6-cache-0<span class="insert">5</span> (work in progress),</td><td class="lineno" valign="top"></td></tr>
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| 436 | <tr><td class="lineno" valign="top"></td><td class="lblock"> <span class="delete">August</span> 2008.</td><td> </td><td class="rblock"> <span class="insert">November</span> 2008.</td><td class="lineno" valign="top"></td></tr>
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| 437 | <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
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| 438 | <tr><td class="lineno" valign="top"></td><td class="left"> [RFC2119] Bradner, S., "Key words for use in RFCs to Indicate</td><td> </td><td class="right"> [RFC2119] Bradner, S., "Key words for use in RFCs to Indicate</td><td class="lineno" valign="top"></td></tr>
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| 439 | <tr><td class="lineno" valign="top"></td><td class="left"> Requirement Levels", BCP 14, RFC 2119, March 1997.</td><td> </td><td class="right"> Requirement Levels", BCP 14, RFC 2119, March 1997.</td><td class="lineno" valign="top"></td></tr>
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| 440 | <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
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| 441 | <tr><td class="lineno" valign="top"></td><td class="left">11.2. Informative References</td><td> </td><td class="right">11.2. Informative References</td><td class="lineno" valign="top"></td></tr>
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| 442 | <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
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| 443 | <tr><td class="lineno" valign="top"></td><td class="left"> [RFC2616] Fielding, R., Gettys, J., Mogul, J., Frystyk, H.,</td><td> </td><td class="right"> [RFC2616] Fielding, R., Gettys, J., Mogul, J., Frystyk, H.,</td><td class="lineno" valign="top"></td></tr>
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| 444 | <tr><td class="lineno" valign="top"></td><td class="left"> Masinter, L., Leach, P., and T. Berners-Lee, "Hypertext</td><td> </td><td class="right"> Masinter, L., Leach, P., and T. Berners-Lee, "Hypertext</td><td class="lineno" valign="top"></td></tr>
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| 445 | <tr><td class="lineno" valign="top"></td><td class="left"> Transfer Protocol -- HTTP/1.1", RFC 2616, June 1999.</td><td> </td><td class="right"> Transfer Protocol -- HTTP/1.1", RFC 2616, June 1999.</td><td class="lineno" valign="top"></td></tr>
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| 446 | <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
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| 447 | <tr><td class="lineno"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno"></td></tr>
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| 448 | <tr bgcolor="gray" ><td></td><th><a name="part-l11" /><small>skipping to change at</small><em> page 19, line 15</em></th><th> </th><th><a name="part-r11" /><small>skipping to change at</small><em> page 19, line 20</em></th><td></td></tr>
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| 449 | <tr><td class="lineno" valign="top"></td><td class="left">Appendix B. Change Log (to be removed by RFC Editor before publication)</td><td> </td><td class="right">Appendix B. Change Log (to be removed by RFC Editor before publication)</td><td class="lineno" valign="top"></td></tr>
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| 450 | <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
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| 451 | <tr><td class="lineno" valign="top"></td><td class="left">B.1. Since RFC2616</td><td> </td><td class="right">B.1. Since RFC2616</td><td class="lineno" valign="top"></td></tr>
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| 452 | <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
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| 453 | <tr><td class="lineno" valign="top"></td><td class="left"> Extracted relevant partitions from [RFC2616].</td><td> </td><td class="right"> Extracted relevant partitions from [RFC2616].</td><td class="lineno" valign="top"></td></tr>
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| 454 | <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
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| 455 | <tr><td class="lineno" valign="top"></td><td class="left">B.2. Since draft-ietf-httpbis-p4-conditional-00</td><td> </td><td class="right">B.2. Since draft-ietf-httpbis-p4-conditional-00</td><td class="lineno" valign="top"></td></tr>
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| 456 | <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
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| 457 | <tr><td class="lineno" valign="top"></td><td class="left"> Closed issues:</td><td> </td><td class="right"> Closed issues:</td><td class="lineno" valign="top"></td></tr>
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| 458 | <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
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| 459 | <tr><td><a name="diff0029" /></td></tr>
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| 460 | <tr><td class="lineno" valign="top"></td><td class="lblock"> o <http://<span class="delete">www3.tools.ietf.org/wg/httpbis/trac/ticket/35>: "Normative</span></td><td> </td><td class="rblock"> o <http://<span class="insert">tools.ietf.org/wg/httpbis/trac/ticket/35>: "Normative and</span></td><td class="lineno" valign="top"></td></tr>
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| 461 | <tr><td class="lineno" valign="top"></td><td class="lblock"> <span class="delete">and </span>Informative references"</td><td> </td><td class="rblock"> Informative references"</td><td class="lineno" valign="top"></td></tr>
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| 462 | <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
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| 463 | <tr><td class="lineno" valign="top"></td><td class="left"> Other changes:</td><td> </td><td class="right"> Other changes:</td><td class="lineno" valign="top"></td></tr>
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| 464 | <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
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| 465 | <tr><td class="lineno" valign="top"></td><td class="left"> o Move definitions of 304 and 412 condition codes from Part2.</td><td> </td><td class="right"> o Move definitions of 304 and 412 condition codes from Part2.</td><td class="lineno" valign="top"></td></tr>
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| 466 | <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
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| 467 | <tr><td class="lineno" valign="top"></td><td class="left">B.3. Since draft-ietf-httpbis-p4-conditional-01</td><td> </td><td class="right">B.3. Since draft-ietf-httpbis-p4-conditional-01</td><td class="lineno" valign="top"></td></tr>
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| 468 | <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
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| 469 | <tr><td class="lineno" valign="top"></td><td class="left"> Ongoing work on ABNF conversion</td><td> </td><td class="right"> Ongoing work on ABNF conversion</td><td class="lineno" valign="top"></td></tr>
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| 470 | <tr><td><a name="diff0030" /></td></tr>
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| 471 | <tr><td class="lineno" valign="top"></td><td class="lblock"> (<http://<span class="delete">www3.</span>tools.ietf.org/wg/httpbis/trac/ticket/36>):</td><td> </td><td class="rblock"> (<http://tools.ietf.org/wg/httpbis/trac/ticket/36>):</td><td class="lineno" valign="top"></td></tr>
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| 472 | <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
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| 473 | <tr><td class="lineno" valign="top"></td><td class="left"> o Add explicit references to BNF syntax and rules imported from</td><td> </td><td class="right"> o Add explicit references to BNF syntax and rules imported from</td><td class="lineno" valign="top"></td></tr>
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| 474 | <tr><td class="lineno" valign="top"></td><td class="left"> other parts of the specification.</td><td> </td><td class="right"> other parts of the specification.</td><td class="lineno" valign="top"></td></tr>
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| 475 | <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
|
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| 476 | <tr><td class="lineno" valign="top"></td><td class="left">B.4. Since draft-ietf-httpbis-p4-conditional-02</td><td> </td><td class="right">B.4. Since draft-ietf-httpbis-p4-conditional-02</td><td class="lineno" valign="top"></td></tr>
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| 477 | <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
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| 478 | <tr><td class="lineno" valign="top"></td><td class="left"> Closed issues:</td><td> </td><td class="right"> Closed issues:</td><td class="lineno" valign="top"></td></tr>
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| 479 | <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
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| 480 | <tr><td><a name="diff0031" /></td></tr>
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| 481 | <tr><td class="lineno" valign="top"></td><td class="lblock"> o <http://<span class="delete">www3.tools.ietf.org/wg/httpbis/trac/ticket/116>: "Weak</span></td><td> </td><td class="rblock"> o <http://<span class="insert">tools.ietf.org/wg/httpbis/trac/ticket/116>: "Weak ETags on</span></td><td class="lineno" valign="top"></td></tr>
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| 482 | <tr><td class="lineno" valign="top"></td><td class="lblock"> <span class="delete">ETags on </span>non-GET requests"</td><td> </td><td class="rblock"> non-GET requests"</td><td class="lineno" valign="top"></td></tr>
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| 483 | <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
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| 484 | <tr><td class="lineno" valign="top"></td><td class="left"> Ongoing work on IANA Message Header Registration</td><td> </td><td class="right"> Ongoing work on IANA Message Header Registration</td><td class="lineno" valign="top"></td></tr>
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| 485 | <tr><td><a name="diff0032" /></td></tr>
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| 486 | <tr><td class="lineno" valign="top"></td><td class="lblock"> (<http://<span class="delete">www3.</span>tools.ietf.org/wg/httpbis/trac/ticket/40>):</td><td> </td><td class="rblock"> (<http://tools.ietf.org/wg/httpbis/trac/ticket/40>):</td><td class="lineno" valign="top"></td></tr>
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| 487 | <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
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| 488 | <tr><td class="lineno" valign="top"></td><td class="left"> o Reference RFC 3984, and update header registrations for headers</td><td> </td><td class="right"> o Reference RFC 3984, and update header registrations for headers</td><td class="lineno" valign="top"></td></tr>
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| 489 | <tr><td class="lineno" valign="top"></td><td class="left"> defined in this document.</td><td> </td><td class="right"> defined in this document.</td><td class="lineno" valign="top"></td></tr>
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| 490 | <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
|
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| 491 | <tr><td class="lineno" valign="top"></td><td class="left">B.5. Since draft-ietf-httpbis-p4-conditional-03</td><td> </td><td class="right">B.5. Since draft-ietf-httpbis-p4-conditional-03</td><td class="lineno" valign="top"></td></tr>
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| 492 | <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
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| 493 | <tr><td class="lineno" valign="top"></td><td class="left"> Closed issues:</td><td> </td><td class="right"> Closed issues:</td><td class="lineno" valign="top"></td></tr>
|
|---|
| 494 | <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
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| 495 | <tr><td><a name="diff0033" /></td></tr>
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| 496 | <tr><td class="lineno" valign="top"></td><td class="lblock"> o <http://<span class="delete">www3.tools.ietf.org/wg/httpbis/trac/ticket/71>: "Examples</span></td><td> </td><td class="rblock"> o <http://<span class="insert">tools.ietf.org/wg/httpbis/trac/ticket/71>: "Examples for</span></td><td class="lineno" valign="top"></td></tr>
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| 497 | <tr><td class="lineno" valign="top"></td><td class="lblock"> <span class="delete">for </span>ETag matching"</td><td> </td><td class="rblock"> ETag matching"</td><td class="lineno" valign="top"></td></tr>
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| 498 | <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
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| 499 | <tr><td><a name="diff0034" /></td></tr>
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| 500 | <tr><td class="lineno" valign="top"></td><td class="lblock"> o <http://<span class="delete">www3.</span>tools.ietf.org/wg/httpbis/trac/ticket/124>: "'entity</td><td> </td><td class="rblock"> o <http://tools.ietf.org/wg/httpbis/trac/ticket/124>: "'entity</td><td class="lineno" valign="top"></td></tr>
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| 501 | <tr><td class="lineno" valign="top"></td><td class="left"> value' undefined"</td><td> </td><td class="right"> value' undefined"</td><td class="lineno" valign="top"></td></tr>
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| 502 | <tr><td><a name="diff0035" /></td></tr>
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| 503 | <tr><td class="lineno" valign="top"></td><td class="lblock"> <span class="delete">o <http://www3.tools.ietf.org/wg/httpbis/trac/ticket/126>: "bogus</span></td><td> </td><td class="rblock"> <span class="insert"> </span></td><td class="lineno" valign="top"></td></tr>
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| 504 | <tr><td class="lineno" valign="top"></td><td class="lblock"> <span class="delete"> 2068 Date header reference"</span></td><td> </td><td class="rblock"> <span class="insert">o <http://tools.ietf.org/wg/httpbis/trac/ticket/126>: "bogus 2068</span></td><td class="lineno" valign="top"></td></tr>
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| 505 | <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert"> Date header reference"</span></td><td class="lineno" valign="top"></td></tr>
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| 506 | <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert"> </span></td><td class="lineno" valign="top"></td></tr>
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| 507 | <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">B.6. Since draft-ietf-httpbis-p4-conditional-04</span></td><td class="lineno" valign="top"></td></tr>
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| 508 | <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert"> </span></td><td class="lineno" valign="top"></td></tr>
|
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| 509 | <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert"> Ongoing work on ABNF conversion</span></td><td class="lineno" valign="top"></td></tr>
|
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| 510 | <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert"> (<http://tools.ietf.org/wg/httpbis/trac/ticket/36>):</span></td><td class="lineno" valign="top"></td></tr>
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| 511 | <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert"> </span></td><td class="lineno" valign="top"></td></tr>
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| 512 | <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert"> o Use "/" instead of "|" for alternatives.</span></td><td class="lineno" valign="top"></td></tr>
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| 513 | <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert"> </span></td><td class="lineno" valign="top"></td></tr>
|
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| 514 | <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert"> o Introduce new ABNF rules for "bad" whitespace ("BWS"), optional</span></td><td class="lineno" valign="top"></td></tr>
|
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| 515 | <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert"> whitespace ("OWS") and required whitespace ("RWS").</span></td><td class="lineno" valign="top"></td></tr>
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| 516 | <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert"> </span></td><td class="lineno" valign="top"></td></tr>
|
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| 517 | <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert"> o Rewrite ABNFs to spell out whitespace rules, factor out header</span></td><td class="lineno" valign="top"></td></tr>
|
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| 518 | <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert"> value format definitions.</span></td><td class="lineno" valign="top"></td></tr>
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| 519 | <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
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| 520 | <tr><td class="lineno" valign="top"></td><td class="left">Index</td><td> </td><td class="right">Index</td><td class="lineno" valign="top"></td></tr>
|
|---|
| 521 | <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
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| 522 | <tr><td class="lineno" valign="top"></td><td class="left"> 3</td><td> </td><td class="right"> 3</td><td class="lineno" valign="top"></td></tr>
|
|---|
| 523 | <tr><td class="lineno" valign="top"></td><td class="left"> 304 Not Modified (status code) 5</td><td> </td><td class="right"> 304 Not Modified (status code) 5</td><td class="lineno" valign="top"></td></tr>
|
|---|
| 524 | <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
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| 525 | <tr><td class="lineno" valign="top"></td><td class="left"> 4</td><td> </td><td class="right"> 4</td><td class="lineno" valign="top"></td></tr>
|
|---|
| 526 | <tr><td class="lineno" valign="top"></td><td class="left"> 412 Precondition Failed (status code) 6</td><td> </td><td class="right"> 412 Precondition Failed (status code) 6</td><td class="lineno" valign="top"></td></tr>
|
|---|
| 527 | <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
|
|---|
| 528 | <tr><td class="lineno" valign="top"></td><td class="left"> E</td><td> </td><td class="right"> E</td><td class="lineno" valign="top"></td></tr>
|
|---|
| 529 | <tr><td class="lineno" valign="top"></td><td class="left"> ETag header 11</td><td> </td><td class="right"> ETag header 11</td><td class="lineno" valign="top"></td></tr>
|
|---|
| 530 | <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
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|---|
| 531 | <tr><td class="lineno" valign="top"></td><td class="left"> G</td><td> </td><td class="right"> G</td><td class="lineno" valign="top"></td></tr>
|
|---|
| 532 | <tr><td class="lineno" valign="top"></td><td class="left"> Grammar</td><td> </td><td class="right"> Grammar</td><td class="lineno" valign="top"></td></tr>
|
|---|
| 533 | <tr><td class="lineno" valign="top"></td><td class="left"> entity-tag 5</td><td> </td><td class="right"> entity-tag 5</td><td class="lineno" valign="top"></td></tr>
|
|---|
| 534 | <tr><td class="lineno" valign="top"></td><td class="left"> ETag 11</td><td> </td><td class="right"> ETag 11</td><td class="lineno" valign="top"></td></tr>
|
|---|
| 535 | <tr><td><a name="diff0036" /></td></tr>
|
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| 536 | <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert"> ETag-v 11</span></td><td class="lineno" valign="top"></td></tr>
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| 537 | <tr><td class="lineno" valign="top"></td><td class="left"> If-Match 12</td><td> </td><td class="right"> If-Match 12</td><td class="lineno" valign="top"></td></tr>
|
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| 538 | <tr><td><a name="diff0037" /></td></tr>
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| 539 | <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert"> If-Match-v 12</span></td><td class="lineno" valign="top"></td></tr>
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| 540 | <tr><td class="lineno" valign="top"></td><td class="left"> If-Modified-Since 13</td><td> </td><td class="right"> If-Modified-Since 13</td><td class="lineno" valign="top"></td></tr>
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| 541 | <tr><td><a name="diff0038" /></td></tr>
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| 542 | <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert"> If-Modified-Since-v 13</span></td><td class="lineno" valign="top"></td></tr>
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| 543 | <tr><td class="lineno" valign="top"></td><td class="left"> If-None-Match 15</td><td> </td><td class="right"> If-None-Match 15</td><td class="lineno" valign="top"></td></tr>
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| 544 | <tr><td><a name="diff0039" /></td></tr>
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| 545 | <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert"> If-None-Match-v 15</span></td><td class="lineno" valign="top"></td></tr>
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| 546 | <tr><td class="lineno" valign="top"></td><td class="left"> If-Unmodified-Since 16</td><td> </td><td class="right"> If-Unmodified-Since 16</td><td class="lineno" valign="top"></td></tr>
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| 547 | <tr><td><a name="diff0040" /></td></tr>
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| 548 | <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert"> If-Unmodified-Since-v 16</span></td><td class="lineno" valign="top"></td></tr>
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| 549 | <tr><td class="lineno" valign="top"></td><td class="left"> Last-Modified 16</td><td> </td><td class="right"> Last-Modified 16</td><td class="lineno" valign="top"></td></tr>
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| 550 | <tr><td><a name="diff0041" /></td></tr>
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| 551 | <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert"> Last-Modified-v 16</span></td><td class="lineno" valign="top"></td></tr>
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| 552 | <tr><td class="lineno" valign="top"></td><td class="left"> opaque-tag 5</td><td> </td><td class="right"> opaque-tag 5</td><td class="lineno" valign="top"></td></tr>
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| 553 | <tr><td class="lineno" valign="top"></td><td class="left"> weak 5</td><td> </td><td class="right"> weak 5</td><td class="lineno" valign="top"></td></tr>
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| 554 | <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
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| 555 | <tr><td class="lineno" valign="top"></td><td class="left"> H</td><td> </td><td class="right"> H</td><td class="lineno" valign="top"></td></tr>
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| 556 | <tr><td class="lineno" valign="top"></td><td class="left"> Headers</td><td> </td><td class="right"> Headers</td><td class="lineno" valign="top"></td></tr>
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| 557 | <tr><td class="lineno" valign="top"></td><td class="left"> ETag 11</td><td> </td><td class="right"> ETag 11</td><td class="lineno" valign="top"></td></tr>
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| 558 | <tr><td class="lineno" valign="top"></td><td class="left"> If-Match 12</td><td> </td><td class="right"> If-Match 12</td><td class="lineno" valign="top"></td></tr>
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| 559 | <tr><td class="lineno" valign="top"></td><td class="left"> If-Modified-Since 13</td><td> </td><td class="right"> If-Modified-Since 13</td><td class="lineno" valign="top"></td></tr>
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| 560 | <tr><td class="lineno" valign="top"></td><td class="left"> If-None-Match 14</td><td> </td><td class="right"> If-None-Match 14</td><td class="lineno" valign="top"></td></tr>
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| 561 | <tr><td class="lineno" valign="top"></td><td class="left"> If-Unmodified-Since 16</td><td> </td><td class="right"> If-Unmodified-Since 16</td><td class="lineno" valign="top"></td></tr>
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| 562 |
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| 563 | <tr><td></td><td class="left"></td><td> </td><td class="right"></td><td></td></tr>
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| 564 | <tr bgcolor="gray"><th colspan="5" align="center"><a name="end"> End of changes. 41 change blocks. </a></th></tr>
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| 565 | <tr class="stats"><td></td><th><i>59 lines changed or deleted</i></th><th><i> </i></th><th><i>88 lines changed or added</i></th><td></td></tr>
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| 566 | <tr><td colspan="5" align="center" class="small"><br/>This html diff was produced by rfcdiff 1.34. The latest version is available from <a href="http://www.tools.ietf.org/tools/rfcdiff/" >http://tools.ietf.org/tools/rfcdiff/</a> </td></tr>
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| 567 | </table>
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| 568 | </body>
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| 569 | </html>
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