source: draft-ietf-httpbis/diffs/draft-ietf-httpbis-p6-cache-05-from-4.diff.html @ 1391

Last change on this file since 1391 was 547, checked in by julian.reschke@…, 11 years ago

Prepare submission of draft -06 on Monday, March 09.

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40<body > 
41  <table border="0" cellpadding="0" cellspacing="0"> 
42  <tr bgcolor="orange"><th></th><th>&nbsp;draft-ietf-httpbis-p6-cache-04.txt&nbsp;</th><th> </th><th>&nbsp;draft-ietf-httpbis-p6-cache-05.txt&nbsp;</th><th></th></tr> 
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>
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>
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>
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>
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>
48      <tr><td><a name="diff0001" /></td></tr>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
63      <tr><td><a name="diff0002" /></td></tr>
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>
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>
66      <tr><td class="lineno" valign="top"></td><td class="left">                       HTTP/1.1, part 6: Caching</td><td> </td><td class="right">                       HTTP/1.1, part 6: Caching</td><td class="lineno" valign="top"></td></tr>
67      <tr><td><a name="diff0003" /></td></tr>
68      <tr><td class="lineno" valign="top"></td><td class="lblock">                     draft-ietf-httpbis-p6-cache-0<span class="delete">4</span></td><td> </td><td class="rblock">                     draft-ietf-httpbis-p6-cache-0<span class="insert">5</span></td><td class="lineno" valign="top"></td></tr>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
79      <tr><td class="lineno"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno"></td></tr>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
91      <tr><td><a name="diff0004" /></td></tr>
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>
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>
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>
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>
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>
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>
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>
99      <tr><td class="lineno" valign="top"></td><td class="left">   information initiative since 1990.  This document is Part 6 of the</td><td> </td><td class="right">   information initiative since 1990.  This document is Part 6 of the</td><td class="lineno" valign="top"></td></tr>
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>
101      <tr><td class="lineno" valign="top"></td><td class="left">   "HTTP/1.1" and, taken together, obsoletes RFC 2616.  Part 6 defines</td><td> </td><td class="right">   "HTTP/1.1" and, taken together, obsoletes RFC 2616.  Part 6 defines</td><td class="lineno" valign="top"></td></tr>
102      <tr><td class="lineno" valign="top"></td><td class="left">   requirements on HTTP caches and the associated header fields that</td><td> </td><td class="right">   requirements on HTTP caches and the associated header fields that</td><td class="lineno" valign="top"></td></tr>
103      <tr><td class="lineno" valign="top"></td><td class="left">   control cache behavior or indicate cacheable response messages.</td><td> </td><td class="right">   control cache behavior or indicate cacheable response messages.</td><td class="lineno" valign="top"></td></tr>
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>
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>
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>
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>
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>
109      <tr><td><a name="diff0005" /></td></tr>
110      <tr><td class="lineno" valign="top"></td><td class="lblock">   at &lt;http://<span class="delete">www.</span>tools.ietf.org/wg/httpbis/trac/report/11&gt; and related</td><td> </td><td class="rblock">   at &lt;http://tools.ietf.org/wg/httpbis/trac/report/11&gt; and related</td><td class="lineno" valign="top"></td></tr>
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>
112      <tr><td><a name="diff0006" /></td></tr>
113      <tr><td class="lineno" valign="top"></td><td class="lblock">   &lt;http://<span class="delete">www.</span>tools.ietf.org/wg/httpbis/&gt;.</td><td> </td><td class="rblock">   &lt;http://tools.ietf.org/wg/httpbis/&gt;.</td><td class="lineno" valign="top"></td></tr>
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>
115      <tr><td><a name="diff0007" /></td></tr>
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>
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>
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>
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>
120      <tr><td class="lineno" valign="top"></td><td class="left">   1.  Introduction . . . . . . . . . . . . . . . . . . . . . . . . .  5</td><td> </td><td class="right">   1.  Introduction . . . . . . . . . . . . . . . . . . . . . . . . .  5</td><td class="lineno" valign="top"></td></tr>
121      <tr><td class="lineno" valign="top"></td><td class="left">     1.1.  Purpose  . . . . . . . . . . . . . . . . . . . . . . . . .  5</td><td> </td><td class="right">     1.1.  Purpose  . . . . . . . . . . . . . . . . . . . . . . . . .  5</td><td class="lineno" valign="top"></td></tr>
122      <tr><td class="lineno" valign="top"></td><td class="left">     1.2.  Terminology  . . . . . . . . . . . . . . . . . . . . . . .  6</td><td> </td><td class="right">     1.2.  Terminology  . . . . . . . . . . . . . . . . . . . . . . .  6</td><td class="lineno" valign="top"></td></tr>
123      <tr><td class="lineno" valign="top"></td><td class="left">     1.3.  Requirements . . . . . . . . . . . . . . . . . . . . . . .  7</td><td> </td><td class="right">     1.3.  Requirements . . . . . . . . . . . . . . . . . . . . . . .  7</td><td class="lineno" valign="top"></td></tr>
124      <tr><td class="lineno" valign="top"></td><td class="left">   2.  Notational Conventions and Generic Grammar . . . . . . . . . .  8</td><td> </td><td class="right">   2.  Notational Conventions and Generic Grammar . . . . . . . . . .  8</td><td class="lineno" valign="top"></td></tr>
125      <tr><td class="lineno" valign="top"></td><td class="left">   3.  Overview . . . . . . . . . . . . . . . . . . . . . . . . . . .  8</td><td> </td><td class="right">   3.  Overview . . . . . . . . . . . . . . . . . . . . . . . . . . .  8</td><td class="lineno" valign="top"></td></tr>
126      <tr><td class="lineno" valign="top"></td><td class="left">     3.1.  Cache Correctness  . . . . . . . . . . . . . . . . . . . .  8</td><td> </td><td class="right">     3.1.  Cache Correctness  . . . . . . . . . . . . . . . . . . . .  8</td><td class="lineno" valign="top"></td></tr>
127      <tr><td class="lineno"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno"></td></tr>
128      <tr bgcolor="gray" ><td></td><th><a name="part-l3" /><small>skipping to change at</small><em> page 4, line 21</em></th><th> </th><th><a name="part-r3" /><small>skipping to change at</small><em> page 4, line 21</em></th><td></td></tr>
129      <tr><td class="lineno" valign="top"></td><td class="left">   Appendix A.  Compatibility with Previous Versions  . . . . . . . . 44</td><td> </td><td class="right">   Appendix A.  Compatibility with Previous Versions  . . . . . . . . 44</td><td class="lineno" valign="top"></td></tr>
130      <tr><td class="lineno" valign="top"></td><td class="left">     A.1.  Changes from RFC 2068  . . . . . . . . . . . . . . . . . . 44</td><td> </td><td class="right">     A.1.  Changes from RFC 2068  . . . . . . . . . . . . . . . . . . 44</td><td class="lineno" valign="top"></td></tr>
131      <tr><td class="lineno" valign="top"></td><td class="left">     A.2.  Changes from RFC 2616  . . . . . . . . . . . . . . . . . . 45</td><td> </td><td class="right">     A.2.  Changes from RFC 2616  . . . . . . . . . . . . . . . . . . 45</td><td class="lineno" valign="top"></td></tr>
132      <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>
133      <tr><td class="lineno" valign="top"></td><td class="left">                publication)  . . . . . . . . . . . . . . . . . . . . 45</td><td> </td><td class="right">                publication)  . . . . . . . . . . . . . . . . . . . . 45</td><td class="lineno" valign="top"></td></tr>
134      <tr><td class="lineno" valign="top"></td><td class="left">     B.1.  Since RFC2616  . . . . . . . . . . . . . . . . . . . . . . 45</td><td> </td><td class="right">     B.1.  Since RFC2616  . . . . . . . . . . . . . . . . . . . . . . 45</td><td class="lineno" valign="top"></td></tr>
135      <tr><td class="lineno" valign="top"></td><td class="left">     B.2.  Since draft-ietf-httpbis-p6-cache-00 . . . . . . . . . . . 45</td><td> </td><td class="right">     B.2.  Since draft-ietf-httpbis-p6-cache-00 . . . . . . . . . . . 45</td><td class="lineno" valign="top"></td></tr>
136      <tr><td class="lineno" valign="top"></td><td class="left">     B.3.  Since draft-ietf-httpbis-p6-cache-01 . . . . . . . . . . . 46</td><td> </td><td class="right">     B.3.  Since draft-ietf-httpbis-p6-cache-01 . . . . . . . . . . . 46</td><td class="lineno" valign="top"></td></tr>
137      <tr><td class="lineno" valign="top"></td><td class="left">     B.4.  Since draft-ietf-httpbis-p6-cache-02 . . . . . . . . . . . 46</td><td> </td><td class="right">     B.4.  Since draft-ietf-httpbis-p6-cache-02 . . . . . . . . . . . 46</td><td class="lineno" valign="top"></td></tr>
138      <tr><td class="lineno" valign="top"></td><td class="left">     B.5.  Since draft-ietf-httpbis-p6-cache-03 . . . . . . . . . . . 46</td><td> </td><td class="right">     B.5.  Since draft-ietf-httpbis-p6-cache-03 . . . . . . . . . . . 46</td><td class="lineno" valign="top"></td></tr>
139      <tr><td><a name="diff0008" /></td></tr>
140      <tr><td class="lineno" valign="top"></td><td class="lblock">   <span class="delete">Index  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46</span></td><td> </td><td class="rblock">   <span class="insert">  B.6.  Since draft-ietf-httpbis-p6-cache-04 . . . . . . . . . . . 47</span></td><td class="lineno" valign="top"></td></tr>
141      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">   Index  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47</span></td><td class="lineno" valign="top"></td></tr>
142      <tr><td class="lineno" valign="top"></td><td class="left">   Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . . 49</td><td> </td><td class="right">   Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . . 49</td><td class="lineno" valign="top"></td></tr>
143      <tr><td class="lineno" valign="top"></td><td class="left">   Intellectual Property and Copyright Statements . . . . . . . . . . 52</td><td> </td><td class="right">   Intellectual Property and Copyright Statements . . . . . . . . . . 52</td><td class="lineno" valign="top"></td></tr>
144      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
145      <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>
146      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
147      <tr><td class="lineno" valign="top"></td><td class="left">   HTTP is typically used for distributed information systems, where</td><td> </td><td class="right">   HTTP is typically used for distributed information systems, where</td><td class="lineno" valign="top"></td></tr>
148      <tr><td class="lineno" valign="top"></td><td class="left">   performance can be improved by the use of response caches, and</td><td> </td><td class="right">   performance can be improved by the use of response caches, and</td><td class="lineno" valign="top"></td></tr>
149      <tr><td class="lineno" valign="top"></td><td class="left">   includes a number of elements intended to make caching work as well</td><td> </td><td class="right">   includes a number of elements intended to make caching work as well</td><td class="lineno" valign="top"></td></tr>
150      <tr><td class="lineno" valign="top"></td><td class="left">   as possible.  Because these elements interact with each other, it is</td><td> </td><td class="right">   as possible.  Because these elements interact with each other, it is</td><td class="lineno" valign="top"></td></tr>
151      <tr><td class="lineno" valign="top"></td><td class="left">   useful to describe the caching design of HTTP separately.  This</td><td> </td><td class="right">   useful to describe the caching design of HTTP separately.  This</td><td class="lineno" valign="top"></td></tr>
152      <tr><td class="lineno"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno"></td></tr>
153      <tr bgcolor="gray" ><td></td><th><a name="part-l4" /><small>skipping to change at</small><em> page 8, line 10</em></th><th> </th><th><a name="part-r4" /><small>skipping to change at</small><em> page 8, line 10</em></th><td></td></tr>
154      <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>
155      <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>
156      <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>
157      <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>
158      <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>
159      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
160      <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>
161      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
162      <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>
163      <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>
164      <tr><td><a name="diff0009" /></td></tr>
165      <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>
166      <tr><td class="lineno" valign="top"></td><td class="lblock"><span class="delete">   5234, see &lt;http://tools.ietf.org/wg/httpbis/trac/ticket/36&gt;.]]</span></td><td> </td><td class="rblock"></td><td class="lineno" valign="top"></td></tr>
167      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
168      <tr><td class="lineno" valign="top"></td><td class="left">     DIGIT         = &lt;DIGIT, defined in [Part1], Section 2.2&gt;</td><td> </td><td class="right">     DIGIT         = &lt;DIGIT, defined in [Part1], Section 2.2&gt;</td><td class="lineno" valign="top"></td></tr>
169      <tr><td class="lineno" valign="top"></td><td class="left">     DQUOTE        = &lt;DQUOTE, defined in [Part1], Section 2.2&gt;</td><td> </td><td class="right">     DQUOTE        = &lt;DQUOTE, defined in [Part1], Section 2.2&gt;</td><td class="lineno" valign="top"></td></tr>
170      <tr><td class="lineno" valign="top"></td><td class="left">     SP            = &lt;SP, defined in [Part1], Section 2.2&gt;</td><td> </td><td class="right">     SP            = &lt;SP, defined in [Part1], Section 2.2&gt;</td><td class="lineno" valign="top"></td></tr>
171      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
172      <tr><td class="lineno" valign="top"></td><td class="left">     quoted-string = &lt;quoted-string, defined in [Part1], Section 2.2&gt;</td><td> </td><td class="right">     quoted-string = &lt;quoted-string, defined in [Part1], Section 2.2&gt;</td><td class="lineno" valign="top"></td></tr>
173      <tr><td class="lineno" valign="top"></td><td class="left">     token         = &lt;token, defined in [Part1], Section 2.2&gt;</td><td> </td><td class="right">     token         = &lt;token, defined in [Part1], Section 2.2&gt;</td><td class="lineno" valign="top"></td></tr>
174      <tr><td><a name="diff0010" /></td></tr>
175      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">     OWS           = &lt;OWS, defined in [Part1], Section 2.2&gt;</span></td><td class="lineno" valign="top"></td></tr>
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>
177      <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>
178      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
179      <tr><td class="lineno" valign="top"></td><td class="left">     field-name    = &lt;field-name, defined in [Part1], Section 4.2&gt;</td><td> </td><td class="right">     field-name    = &lt;field-name, defined in [Part1], Section 4.2&gt;</td><td class="lineno" valign="top"></td></tr>
180      <tr><td class="lineno" valign="top"></td><td class="left">     HTTP-date     = &lt;HTTP-date, defined in [Part1], Section 3.3.1&gt;</td><td> </td><td class="right">     HTTP-date     = &lt;HTTP-date, defined in [Part1], Section 3.3.1&gt;</td><td class="lineno" valign="top"></td></tr>
181      <tr><td><a name="diff0011" /></td></tr>
182      <tr><td class="lineno" valign="top"></td><td class="lblock">     port          = &lt;port, defined in [Part1], Section 3.2<span class="delete">.1</span>&gt;</td><td> </td><td class="rblock">     port          = &lt;port, defined in [Part1], Section 3.2&gt;</td><td class="lineno" valign="top"></td></tr>
183      <tr><td class="lineno" valign="top"></td><td class="left">     pseudonym     = &lt;pseudonym, defined in [Part1], Section 8.9&gt;</td><td> </td><td class="right">     pseudonym     = &lt;pseudonym, defined in [Part1], Section 8.9&gt;</td><td class="lineno" valign="top"></td></tr>
184      <tr><td><a name="diff0012" /></td></tr>
185      <tr><td class="lineno" valign="top"></td><td class="lblock">     uri-host      = &lt;uri-host, defined in [Part1], Section 3.2<span class="delete">.1</span>&gt;</td><td> </td><td class="rblock">     uri-host      = &lt;uri-host, defined in [Part1], Section 3.2&gt;</td><td class="lineno" valign="top"></td></tr>
186      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
187      <tr><td class="lineno" valign="top"></td><td class="left">3.  Overview</td><td> </td><td class="right">3.  Overview</td><td class="lineno" valign="top"></td></tr>
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>
189      <tr><td class="lineno" valign="top"></td><td class="left">3.1.  Cache Correctness</td><td> </td><td class="right">3.1.  Cache Correctness</td><td class="lineno" valign="top"></td></tr>
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>
191      <tr><td class="lineno" valign="top"></td><td class="left">   A correct cache MUST respond to a request with the most up-to-date</td><td> </td><td class="right">   A correct cache MUST respond to a request with the most up-to-date</td><td class="lineno" valign="top"></td></tr>
192      <tr><td class="lineno" valign="top"></td><td class="left">   response held by the cache that is appropriate to the request (see</td><td> </td><td class="right">   response held by the cache that is appropriate to the request (see</td><td class="lineno" valign="top"></td></tr>
193      <tr><td class="lineno" valign="top"></td><td class="left">   Sections 4.5, 4.6, and 14) which meets one of the following</td><td> </td><td class="right">   Sections 4.5, 4.6, and 14) which meets one of the following</td><td class="lineno" valign="top"></td></tr>
194      <tr><td class="lineno" valign="top"></td><td class="left">   conditions:</td><td> </td><td class="right">   conditions:</td><td class="lineno" valign="top"></td></tr>
195      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
196      <tr><td class="lineno"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno"></td></tr>
197      <tr bgcolor="gray" ><td></td><th><a name="part-l5" /><small>skipping to change at</small><em> page 27, line 16</em></th><th> </th><th><a name="part-r5" /><small>skipping to change at</small><em> page 27, line 16</em></th><td></td></tr>
198      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
199      <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>
200      <tr><td class="lineno" valign="top"></td><td class="left">   fields related to caching.</td><td> </td><td class="right">   fields related to caching.</td><td class="lineno" valign="top"></td></tr>
201      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
202      <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>
203      <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>
204      <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>
205      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
206      <tr><td class="lineno" valign="top"></td><td class="left">16.1.  Age</td><td> </td><td class="right">16.1.  Age</td><td class="lineno" valign="top"></td></tr>
207      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
208      <tr><td><a name="diff0013" /></td></tr>
209      <tr><td class="lineno" valign="top"></td><td class="lblock">   The <span class="delete">Age response-header field</span> conveys the sender's estimate of the</td><td> </td><td class="rblock">   The <span class="insert">response-header field "Age"</span> conveys the sender's estimate of the</td><td class="lineno" valign="top"></td></tr>
210      <tr><td class="lineno" valign="top"></td><td class="left">   amount of time since the response (or its revalidation) was generated</td><td> </td><td class="right">   amount of time since the response (or its revalidation) was generated</td><td class="lineno" valign="top"></td></tr>
211      <tr><td class="lineno" valign="top"></td><td class="left">   at the origin server.  A cached response is "fresh" if its age does</td><td> </td><td class="right">   at the origin server.  A cached response is "fresh" if its age does</td><td class="lineno" valign="top"></td></tr>
212      <tr><td class="lineno" valign="top"></td><td class="left">   not exceed its freshness lifetime.  Age values are calculated as</td><td> </td><td class="right">   not exceed its freshness lifetime.  Age values are calculated as</td><td class="lineno" valign="top"></td></tr>
213      <tr><td class="lineno" valign="top"></td><td class="left">   specified in Section 4.3.</td><td> </td><td class="right">   specified in Section 4.3.</td><td class="lineno" valign="top"></td></tr>
214      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
215      <tr><td><a name="diff0014" /></td></tr>
216      <tr><td class="lineno" valign="top"></td><td class="lblock">     Age <span class="delete">= "Age" ":" age-value</span></td><td> </td><td class="rblock">     Age <span class="insert">  = "Age" ":" OWS Age-v</span></td><td class="lineno" valign="top"></td></tr>
217      <tr><td class="lineno" valign="top"></td><td class="lblock">     <span class="delete">age-value</span> = delta-seconds</td><td> </td><td class="rblock">     <span class="insert">Age-v</span> = delta-seconds</td><td class="lineno" valign="top"></td></tr>
218      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
219      <tr><td class="lineno" valign="top"></td><td class="left">   Age values are non-negative decimal integers, representing time in</td><td> </td><td class="right">   Age values are non-negative decimal integers, representing time in</td><td class="lineno" valign="top"></td></tr>
220      <tr><td class="lineno" valign="top"></td><td class="left">   seconds.</td><td> </td><td class="right">   seconds.</td><td class="lineno" valign="top"></td></tr>
221      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
222      <tr><td class="lineno" valign="top"></td><td class="left">     delta-seconds  = 1*DIGIT</td><td> </td><td class="right">     delta-seconds  = 1*DIGIT</td><td class="lineno" valign="top"></td></tr>
223      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
224      <tr><td class="lineno" valign="top"></td><td class="left">   If a cache receives a value larger than the largest positive integer</td><td> </td><td class="right">   If a cache receives a value larger than the largest positive integer</td><td class="lineno" valign="top"></td></tr>
225      <tr><td class="lineno" valign="top"></td><td class="left">   it can represent, or if any of its age calculations overflows, it</td><td> </td><td class="right">   it can represent, or if any of its age calculations overflows, it</td><td class="lineno" valign="top"></td></tr>
226      <tr><td class="lineno" valign="top"></td><td class="left">   MUST transmit an Age header with a value of 2147483648 (2^31).  An</td><td> </td><td class="right">   MUST transmit an Age header with a value of 2147483648 (2^31).  An</td><td class="lineno" valign="top"></td></tr>
227      <tr><td class="lineno" valign="top"></td><td class="left">   HTTP/1.1 server that includes a cache MUST include an Age header</td><td> </td><td class="right">   HTTP/1.1 server that includes a cache MUST include an Age header</td><td class="lineno" valign="top"></td></tr>
228      <tr><td class="lineno" valign="top"></td><td class="left">   field in every response generated from its own cache.  Caches SHOULD</td><td> </td><td class="right">   field in every response generated from its own cache.  Caches SHOULD</td><td class="lineno" valign="top"></td></tr>
229      <tr><td class="lineno" valign="top"></td><td class="left">   use an arithmetic type of at least 31 bits of range.</td><td> </td><td class="right">   use an arithmetic type of at least 31 bits of range.</td><td class="lineno" valign="top"></td></tr>
230      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
231      <tr><td class="lineno" valign="top"></td><td class="left">16.2.  Cache-Control</td><td> </td><td class="right">16.2.  Cache-Control</td><td class="lineno" valign="top"></td></tr>
232      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
233      <tr><td><a name="diff0015" /></td></tr>
234      <tr><td class="lineno" valign="top"></td><td class="lblock">   The <span class="delete">Cache-Control general-header field is used to specify directives</span></td><td> </td><td class="rblock">   The <span class="insert">general-header field "Cache-Control" is used to specify</span></td><td class="lineno" valign="top"></td></tr>
235      <tr><td class="lineno" valign="top"></td><td class="lblock">   <span class="delete">that MUST be obeyed by all caching mechanisms along the request/</span></td><td> </td><td class="rblock">   <span class="insert">directives that MUST be obeyed by all caching mechanisms along the</span></td><td class="lineno" valign="top"></td></tr>
236      <tr><td class="lineno" valign="top"></td><td class="lblock">   re<span class="delete">sponse chain.  The directives specify behavior intended to prevent</span></td><td> </td><td class="rblock">   re<span class="insert">quest/response chain.  The directives specify behavior intended to</span></td><td class="lineno" valign="top"></td></tr>
237      <tr><td class="lineno" valign="top"></td><td class="lblock">   <span class="delete">caches from adversely interfering with the request or response.</span></td><td> </td><td class="rblock">   <span class="insert">prevent caches from adversely interfering with the request or</span></td><td class="lineno" valign="top"></td></tr>
238      <tr><td class="lineno" valign="top"></td><td class="lblock">   <span class="delete">These directives typically override the default caching algorithms.</span></td><td> </td><td class="rblock">   <span class="insert">response.  These directives typically override the default caching</span></td><td class="lineno" valign="top"></td></tr>
239      <tr><td class="lineno" valign="top"></td><td class="lblock">   <span class="delete">Cache directives are unidirectional in that the presence of a</span></td><td> </td><td class="rblock">   <span class="insert">algorithms.  Cache directives are unidirectional in that the presence</span></td><td class="lineno" valign="top"></td></tr>
240      <tr><td class="lineno" valign="top"></td><td class="lblock">   <span class="delete">directive in a request does not imply that the same directive is to</span></td><td> </td><td class="rblock">   <span class="insert">of a directive in a request does not imply that the same directive is</span></td><td class="lineno" valign="top"></td></tr>
241      <tr><td class="lineno" valign="top"></td><td class="lblock">   be given in the response.</td><td> </td><td class="rblock">   <span class="insert">to </span>be given in the response.</td><td class="lineno" valign="top"></td></tr>
242      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
243      <tr><td class="lineno" valign="top"></td><td class="left">      Note that HTTP/1.0 caches might not implement Cache-Control and</td><td> </td><td class="right">      Note that HTTP/1.0 caches might not implement Cache-Control and</td><td class="lineno" valign="top"></td></tr>
244      <tr><td class="lineno" valign="top"></td><td class="left">      might only implement Pragma: no-cache (see Section 16.4).</td><td> </td><td class="right">      might only implement Pragma: no-cache (see Section 16.4).</td><td class="lineno" valign="top"></td></tr>
245      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
246      <tr><td class="lineno" valign="top"></td><td class="left">   Cache directives MUST be passed through by a proxy or gateway</td><td> </td><td class="right">   Cache directives MUST be passed through by a proxy or gateway</td><td class="lineno" valign="top"></td></tr>
247      <tr><td class="lineno" valign="top"></td><td class="left">   application, regardless of their significance to that application,</td><td> </td><td class="right">   application, regardless of their significance to that application,</td><td class="lineno" valign="top"></td></tr>
248      <tr><td class="lineno" valign="top"></td><td class="left">   since the directives might be applicable to all recipients along the</td><td> </td><td class="right">   since the directives might be applicable to all recipients along the</td><td class="lineno" valign="top"></td></tr>
249      <tr><td class="lineno" valign="top"></td><td class="left">   request/response chain.  It is not possible to specify a cache-</td><td> </td><td class="right">   request/response chain.  It is not possible to specify a cache-</td><td class="lineno" valign="top"></td></tr>
250      <tr><td class="lineno" valign="top"></td><td class="left">   directive for a specific cache.</td><td> </td><td class="right">   directive for a specific cache.</td><td class="lineno" valign="top"></td></tr>
251      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
252      <tr><td><a name="diff0016" /></td></tr>
253      <tr><td class="lineno" valign="top"></td><td class="lblock">     Cache-Control   = "Cache-Control" ":" <span class="delete">1#cache-directive</span></td><td> </td><td class="rblock">     Cache-Control   = "Cache-Control" ":" <span class="insert">OWS Cache-Control-v</span></td><td class="lineno" valign="top"></td></tr>
254      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">     Cache-Control-v = 1#cache-directive</span></td><td class="lineno" valign="top"></td></tr>
255      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
256      <tr><td class="lineno" valign="top"></td><td class="left">     cache-directive = cache-request-directive</td><td> </td><td class="right">     cache-directive = cache-request-directive</td><td class="lineno" valign="top"></td></tr>
257      <tr><td><a name="diff0017" /></td></tr>
258      <tr><td class="lineno" valign="top"></td><td class="lblock">        <span class="delete">|</span> cache-response-directive</td><td> </td><td class="rblock">        <span class="insert">/</span> cache-response-directive</td><td class="lineno" valign="top"></td></tr>
259      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
260      <tr><td class="lineno" valign="top"></td><td class="left">     cache-request-directive =</td><td> </td><td class="right">     cache-request-directive =</td><td class="lineno" valign="top"></td></tr>
261      <tr><td class="lineno" valign="top"></td><td class="left">          "no-cache"                          ; Section 16.2.1</td><td> </td><td class="right">          "no-cache"                          ; Section 16.2.1</td><td class="lineno" valign="top"></td></tr>
262      <tr><td><a name="diff0018" /></td></tr>
263      <tr><td class="lineno" valign="top"></td><td class="lblock">        <span class="delete">|</span> "no-store"                          ; Section 16.2.2</td><td> </td><td class="rblock">        <span class="insert">/</span> "no-store"                          ; Section 16.2.2</td><td class="lineno" valign="top"></td></tr>
264      <tr><td class="lineno" valign="top"></td><td class="lblock">        <span class="delete">|</span> "max-age" "=" delta-seconds         ; Section 16.2.3, 16.2.4</td><td> </td><td class="rblock">        <span class="insert">/</span> "max-age" "=" delta-seconds         ; Section 16.2.3, 16.2.4</td><td class="lineno" valign="top"></td></tr>
265      <tr><td class="lineno" valign="top"></td><td class="lblock">        <span class="delete">|</span> "max-stale" [ "=" delta-seconds ]   ; Section 16.2.3</td><td> </td><td class="rblock">        <span class="insert">/</span> "max-stale" [ "=" delta-seconds ]   ; Section 16.2.3</td><td class="lineno" valign="top"></td></tr>
266      <tr><td class="lineno" valign="top"></td><td class="lblock">        <span class="delete">|</span> "min-fresh" "=" delta-seconds       ; Section 16.2.3</td><td> </td><td class="rblock">        <span class="insert">/</span> "min-fresh" "=" delta-seconds       ; Section 16.2.3</td><td class="lineno" valign="top"></td></tr>
267      <tr><td class="lineno" valign="top"></td><td class="lblock">        <span class="delete">|</span> "no-transform"                      ; Section 16.2.5</td><td> </td><td class="rblock">        <span class="insert">/</span> "no-transform"                      ; Section 16.2.5</td><td class="lineno" valign="top"></td></tr>
268      <tr><td class="lineno" valign="top"></td><td class="lblock">        <span class="delete">|</span> "only-if-cached"                    ; Section 16.2.4</td><td> </td><td class="rblock">        <span class="insert">/</span> "only-if-cached"                    ; Section 16.2.4</td><td class="lineno" valign="top"></td></tr>
269      <tr><td class="lineno" valign="top"></td><td class="lblock">        <span class="delete">|</span> cache-extension                     ; Section 16.2.6</td><td> </td><td class="rblock">        <span class="insert">/</span> cache-extension                     ; Section 16.2.6</td><td class="lineno" valign="top"></td></tr>
270      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
271      <tr><td class="lineno" valign="top"></td><td class="left">     cache-response-directive =</td><td> </td><td class="right">     cache-response-directive =</td><td class="lineno" valign="top"></td></tr>
272      <tr><td class="lineno" valign="top"></td><td class="left">          "public"                               ; Section 16.2.1</td><td> </td><td class="right">          "public"                               ; Section 16.2.1</td><td class="lineno" valign="top"></td></tr>
273      <tr><td><a name="diff0019" /></td></tr>
274      <tr><td class="lineno" valign="top"></td><td class="lblock">        <span class="delete">|</span> "private" [ "=" DQUOTE 1#field-name DQUOTE ] ; Section 16.2.1</td><td> </td><td class="rblock">        <span class="insert">/</span> "private" [ "=" DQUOTE 1#field-name DQUOTE ] ; Section 16.2.1</td><td class="lineno" valign="top"></td></tr>
275      <tr><td class="lineno" valign="top"></td><td class="lblock">        <span class="delete">|</span> "no-cache" [ "=" DQUOTE 1#field-name DQUOTE ] ; Section 16.2.1</td><td> </td><td class="rblock">        <span class="insert">/</span> "no-cache" [ "=" DQUOTE 1#field-name DQUOTE ] ; Section 16.2.1</td><td class="lineno" valign="top"></td></tr>
276      <tr><td class="lineno" valign="top"></td><td class="lblock">        <span class="delete">|</span> "no-store"                             ; Section 16.2.2</td><td> </td><td class="rblock">        <span class="insert">/</span> "no-store"                             ; Section 16.2.2</td><td class="lineno" valign="top"></td></tr>
277      <tr><td class="lineno" valign="top"></td><td class="lblock">        <span class="delete">|</span> "no-transform"                         ; Section 16.2.5</td><td> </td><td class="rblock">        <span class="insert">/</span> "no-transform"                         ; Section 16.2.5</td><td class="lineno" valign="top"></td></tr>
278      <tr><td class="lineno" valign="top"></td><td class="lblock">        <span class="delete">|</span> "must-revalidate"                      ; Section 16.2.4</td><td> </td><td class="rblock">        <span class="insert">/</span> "must-revalidate"                      ; Section 16.2.4</td><td class="lineno" valign="top"></td></tr>
279      <tr><td class="lineno" valign="top"></td><td class="lblock">        <span class="delete">|</span> "proxy-revalidate"                     ; Section 16.2.4</td><td> </td><td class="rblock">        <span class="insert">/</span> "proxy-revalidate"                     ; Section 16.2.4</td><td class="lineno" valign="top"></td></tr>
280      <tr><td class="lineno" valign="top"></td><td class="lblock">        <span class="delete">|</span> "max-age" "=" delta-seconds            ; Section 16.2.3</td><td> </td><td class="rblock">        <span class="insert">/</span> "max-age" "=" delta-seconds            ; Section 16.2.3</td><td class="lineno" valign="top"></td></tr>
281      <tr><td class="lineno" valign="top"></td><td class="lblock">        <span class="delete">|</span> "s-maxage" "=" delta-seconds           ; Section 16.2.3</td><td> </td><td class="rblock">        <span class="insert">/</span> "s-maxage" "=" delta-seconds           ; Section 16.2.3</td><td class="lineno" valign="top"></td></tr>
282      <tr><td class="lineno" valign="top"></td><td class="lblock">        <span class="delete">|</span> cache-extension                        ; Section 16.2.6</td><td> </td><td class="rblock">        <span class="insert">/</span> cache-extension                        ; Section 16.2.6</td><td class="lineno" valign="top"></td></tr>
283      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
284      <tr><td><a name="diff0020" /></td></tr>
285      <tr><td class="lineno" valign="top"></td><td class="lblock">     cache-extension = token [ "=" ( token <span class="delete">|</span> quoted-string ) ]</td><td> </td><td class="rblock">     cache-extension = token [ "=" ( token <span class="insert">/</span> quoted-string ) ]</td><td class="lineno" valign="top"></td></tr>
286      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
287      <tr><td class="lineno" valign="top"></td><td class="left">   When a directive appears without any 1#field-name parameter, the</td><td> </td><td class="right">   When a directive appears without any 1#field-name parameter, the</td><td class="lineno" valign="top"></td></tr>
288      <tr><td class="lineno" valign="top"></td><td class="left">   directive applies to the entire request or response.  When such a</td><td> </td><td class="right">   directive applies to the entire request or response.  When such a</td><td class="lineno" valign="top"></td></tr>
289      <tr><td class="lineno" valign="top"></td><td class="left">   directive appears with a 1#field-name parameter, it applies only to</td><td> </td><td class="right">   directive appears with a 1#field-name parameter, it applies only to</td><td class="lineno" valign="top"></td></tr>
290      <tr><td class="lineno" valign="top"></td><td class="left">   the named field or fields, and not to the rest of the request or</td><td> </td><td class="right">   the named field or fields, and not to the rest of the request or</td><td class="lineno" valign="top"></td></tr>
291      <tr><td class="lineno" valign="top"></td><td class="left">   response.  This mechanism supports extensibility; implementations of</td><td> </td><td class="right">   response.  This mechanism supports extensibility; implementations of</td><td class="lineno" valign="top"></td></tr>
292      <tr><td class="lineno" valign="top"></td><td class="left">   future versions of HTTP might apply these directives to header fields</td><td> </td><td class="right">   future versions of HTTP might apply these directives to header fields</td><td class="lineno" valign="top"></td></tr>
293      <tr><td class="lineno" valign="top"></td><td class="left">   not defined in HTTP/1.1.</td><td> </td><td class="right">   not defined in HTTP/1.1.</td><td class="lineno" valign="top"></td></tr>
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>
295      <tr><td class="lineno" valign="top"></td><td class="left">   The cache-control directives can be broken down into these general</td><td> </td><td class="right">   The cache-control directives can be broken down into these general</td><td class="lineno" valign="top"></td></tr>
296      <tr><td class="lineno"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno"></td></tr>
297      <tr bgcolor="gray" ><td></td><th><a name="part-l6" /><small>skipping to change at</small><em> page 37, line 24</em></th><th> </th><th><a name="part-r6" /><small>skipping to change at</small><em> page 37, line 24</em></th><td></td></tr>
298      <tr><td class="lineno" valign="top"></td><td class="left">   intermediate cache that has a fresh copy of the entity).  See</td><td> </td><td class="right">   intermediate cache that has a fresh copy of the entity).  See</td><td class="lineno" valign="top"></td></tr>
299      <tr><td class="lineno" valign="top"></td><td class="left">   Section 4 for further discussion of the expiration model.</td><td> </td><td class="right">   Section 4 for further discussion of the expiration model.</td><td class="lineno" valign="top"></td></tr>
300      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
301      <tr><td class="lineno" valign="top"></td><td class="left">   The presence of an Expires field does not imply that the original</td><td> </td><td class="right">   The presence of an Expires field does not imply that the original</td><td class="lineno" valign="top"></td></tr>
302      <tr><td class="lineno" valign="top"></td><td class="left">   resource will change or cease to exist at, before, or after that</td><td> </td><td class="right">   resource will change or cease to exist at, before, or after that</td><td class="lineno" valign="top"></td></tr>
303      <tr><td class="lineno" valign="top"></td><td class="left">   time.</td><td> </td><td class="right">   time.</td><td class="lineno" valign="top"></td></tr>
304      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
305      <tr><td class="lineno" valign="top"></td><td class="left">   The format is an absolute date and time as defined by HTTP-date in</td><td> </td><td class="right">   The format is an absolute date and time as defined by HTTP-date in</td><td class="lineno" valign="top"></td></tr>
306      <tr><td class="lineno" valign="top"></td><td class="left">   Section 3.3.1 of [Part1]; it MUST be sent in rfc1123-date format.</td><td> </td><td class="right">   Section 3.3.1 of [Part1]; it MUST be sent in rfc1123-date format.</td><td class="lineno" valign="top"></td></tr>
307      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
308      <tr><td><a name="diff0021" /></td></tr>
309      <tr><td class="lineno" valign="top"></td><td class="lblock">     Expires <span class="delete">= "Expires" ":" HTTP-date</span></td><td> </td><td class="rblock">     Expires <span class="insert">  = "Expires" ":" OWS Expires-v</span></td><td class="lineno" valign="top"></td></tr>
310      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">     Expires-v = HTTP-date</span></td><td class="lineno" valign="top"></td></tr>
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>
312      <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>
313      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
314      <tr><td class="lineno" valign="top"></td><td class="left">      Expires: Thu, 01 Dec 1994 16:00:00 GMT</td><td> </td><td class="right">      Expires: Thu, 01 Dec 1994 16:00:00 GMT</td><td class="lineno" valign="top"></td></tr>
315      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
316      <tr><td class="lineno" valign="top"></td><td class="left">      Note: if a response includes a Cache-Control field with the max-</td><td> </td><td class="right">      Note: if a response includes a Cache-Control field with the max-</td><td class="lineno" valign="top"></td></tr>
317      <tr><td class="lineno" valign="top"></td><td class="left">      age directive (see Section 16.2.3), that directive overrides the</td><td> </td><td class="right">      age directive (see Section 16.2.3), that directive overrides the</td><td class="lineno" valign="top"></td></tr>
318      <tr><td class="lineno" valign="top"></td><td class="left">      Expires field.</td><td> </td><td class="right">      Expires field.</td><td class="lineno" valign="top"></td></tr>
319      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
320      <tr><td class="lineno" valign="top"></td><td class="left">   HTTP/1.1 clients and caches MUST treat other invalid date formats,</td><td> </td><td class="right">   HTTP/1.1 clients and caches MUST treat other invalid date formats,</td><td class="lineno" valign="top"></td></tr>
321      <tr><td class="lineno"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno"></td></tr>
322      <tr bgcolor="gray" ><td></td><th><a name="part-l7" /><small>skipping to change at</small><em> page 38, line 7</em></th><th> </th><th><a name="part-r7" /><small>skipping to change at</small><em> page 38, line 7</em></th><td></td></tr>
323      <tr><td class="lineno" valign="top"></td><td class="left">   sent.  HTTP/1.1 servers SHOULD NOT send Expires dates more than one</td><td> </td><td class="right">   sent.  HTTP/1.1 servers SHOULD NOT send Expires dates more than one</td><td class="lineno" valign="top"></td></tr>
324      <tr><td class="lineno" valign="top"></td><td class="left">   year in the future.</td><td> </td><td class="right">   year in the future.</td><td class="lineno" valign="top"></td></tr>
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>
326      <tr><td class="lineno" valign="top"></td><td class="left">   The presence of an Expires header field with a date value of some</td><td> </td><td class="right">   The presence of an Expires header field with a date value of some</td><td class="lineno" valign="top"></td></tr>
327      <tr><td class="lineno" valign="top"></td><td class="left">   time in the future on a response that otherwise would by default be</td><td> </td><td class="right">   time in the future on a response that otherwise would by default be</td><td class="lineno" valign="top"></td></tr>
328      <tr><td class="lineno" valign="top"></td><td class="left">   non-cacheable indicates that the response is cacheable, unless</td><td> </td><td class="right">   non-cacheable indicates that the response is cacheable, unless</td><td class="lineno" valign="top"></td></tr>
329      <tr><td class="lineno" valign="top"></td><td class="left">   indicated otherwise by a Cache-Control header field (Section 16.2).</td><td> </td><td class="right">   indicated otherwise by a Cache-Control header field (Section 16.2).</td><td class="lineno" valign="top"></td></tr>
330      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
331      <tr><td class="lineno" valign="top"></td><td class="left">16.4.  Pragma</td><td> </td><td class="right">16.4.  Pragma</td><td class="lineno" valign="top"></td></tr>
332      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
333      <tr><td><a name="diff0022" /></td></tr>
334      <tr><td class="lineno" valign="top"></td><td class="lblock">   The <span class="delete">Pragma general-header field</span> is used to include implementation-</td><td> </td><td class="rblock">   The <span class="insert">general-header field "Pragma"</span> is used to include implementation-</td><td class="lineno" valign="top"></td></tr>
335      <tr><td class="lineno" valign="top"></td><td class="left">   specific directives that might apply to any recipient along the</td><td> </td><td class="right">   specific directives that might apply to any recipient along the</td><td class="lineno" valign="top"></td></tr>
336      <tr><td class="lineno" valign="top"></td><td class="left">   request/response chain.  All pragma directives specify optional</td><td> </td><td class="right">   request/response chain.  All pragma directives specify optional</td><td class="lineno" valign="top"></td></tr>
337      <tr><td class="lineno" valign="top"></td><td class="left">   behavior from the viewpoint of the protocol; however, some systems</td><td> </td><td class="right">   behavior from the viewpoint of the protocol; however, some systems</td><td class="lineno" valign="top"></td></tr>
338      <tr><td class="lineno" valign="top"></td><td class="left">   MAY require that behavior be consistent with the directives.</td><td> </td><td class="right">   MAY require that behavior be consistent with the directives.</td><td class="lineno" valign="top"></td></tr>
339      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
340      <tr><td><a name="diff0023" /></td></tr>
341      <tr><td class="lineno" valign="top"></td><td class="lblock">     Pragma            = "Pragma" ":" <span class="delete">1#pragma-directive</span></td><td> </td><td class="rblock">     Pragma            = "Pragma" ":" <span class="insert">OWS Pragma-v</span></td><td class="lineno" valign="top"></td></tr>
342      <tr><td class="lineno" valign="top"></td><td class="lblock">     <span class="delete">pragma-directive  = "no-cache" | extension-pragma</span></td><td> </td><td class="rblock">     <span class="insert">Pragma-v          = 1#pragma-directive</span></td><td class="lineno" valign="top"></td></tr>
343      <tr><td class="lineno" valign="top"></td><td class="lblock">     <span class="delete">extension-pragma  = token [ "=" ( token | quoted-string ) ]</span></td><td> </td><td class="rblock">     <span class="insert">pragma-directive  = "no-cache" / extension-pragma</span></td><td class="lineno" valign="top"></td></tr>
344      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">     extension-pragma  = token [ "=" ( token / quoted-string ) ]</span></td><td class="lineno" valign="top"></td></tr>
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>
346      <tr><td class="lineno" valign="top"></td><td class="left">   When the no-cache directive is present in a request message, an</td><td> </td><td class="right">   When the no-cache directive is present in a request message, an</td><td class="lineno" valign="top"></td></tr>
347      <tr><td class="lineno" valign="top"></td><td class="left">   application SHOULD forward the request toward the origin server even</td><td> </td><td class="right">   application SHOULD forward the request toward the origin server even</td><td class="lineno" valign="top"></td></tr>
348      <tr><td class="lineno" valign="top"></td><td class="left">   if it has a cached copy of what is being requested.  This pragma</td><td> </td><td class="right">   if it has a cached copy of what is being requested.  This pragma</td><td class="lineno" valign="top"></td></tr>
349      <tr><td class="lineno" valign="top"></td><td class="left">   directive has the same semantics as the no-cache cache-directive (see</td><td> </td><td class="right">   directive has the same semantics as the no-cache cache-directive (see</td><td class="lineno" valign="top"></td></tr>
350      <tr><td class="lineno" valign="top"></td><td class="left">   Section 16.2) and is defined here for backward compatibility with</td><td> </td><td class="right">   Section 16.2) and is defined here for backward compatibility with</td><td class="lineno" valign="top"></td></tr>
351      <tr><td class="lineno" valign="top"></td><td class="left">   HTTP/1.0.  Clients SHOULD include both header fields when a no-cache</td><td> </td><td class="right">   HTTP/1.0.  Clients SHOULD include both header fields when a no-cache</td><td class="lineno" valign="top"></td></tr>
352      <tr><td class="lineno" valign="top"></td><td class="left">   request is sent to a server not known to be HTTP/1.1 compliant.</td><td> </td><td class="right">   request is sent to a server not known to be HTTP/1.1 compliant.</td><td class="lineno" valign="top"></td></tr>
353      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
354      <tr><td class="lineno" valign="top"></td><td class="left">   Pragma directives MUST be passed through by a proxy or gateway</td><td> </td><td class="right">   Pragma directives MUST be passed through by a proxy or gateway</td><td class="lineno" valign="top"></td></tr>
355      <tr><td class="lineno"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno"></td></tr>
356      <tr bgcolor="gray" ><td></td><th><a name="part-l8" /><small>skipping to change at</small><em> page 38, line 42</em></th><th> </th><th><a name="part-r8" /><small>skipping to change at</small><em> page 38, line 43</em></th><td></td></tr>
357      <tr><td class="lineno" valign="top"></td><td class="left">   HTTP/1.1 caches SHOULD treat "Pragma: no-cache" as if the client had</td><td> </td><td class="right">   HTTP/1.1 caches SHOULD treat "Pragma: no-cache" as if the client had</td><td class="lineno" valign="top"></td></tr>
358      <tr><td class="lineno" valign="top"></td><td class="left">   sent "Cache-Control: no-cache".  No new Pragma directives will be</td><td> </td><td class="right">   sent "Cache-Control: no-cache".  No new Pragma directives will be</td><td class="lineno" valign="top"></td></tr>
359      <tr><td class="lineno" valign="top"></td><td class="left">   defined in HTTP.</td><td> </td><td class="right">   defined in HTTP.</td><td class="lineno" valign="top"></td></tr>
360      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
361      <tr><td class="lineno" valign="top"></td><td class="left">      Note: because the meaning of "Pragma: no-cache" as a response-</td><td> </td><td class="right">      Note: because the meaning of "Pragma: no-cache" as a response-</td><td class="lineno" valign="top"></td></tr>
362      <tr><td class="lineno" valign="top"></td><td class="left">      header field is not actually specified, it does not provide a</td><td> </td><td class="right">      header field is not actually specified, it does not provide a</td><td class="lineno" valign="top"></td></tr>
363      <tr><td class="lineno" valign="top"></td><td class="left">      reliable replacement for "Cache-Control: no-cache" in a response.</td><td> </td><td class="right">      reliable replacement for "Cache-Control: no-cache" in a response.</td><td class="lineno" valign="top"></td></tr>
364      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
365      <tr><td class="lineno" valign="top"></td><td class="left">16.5.  Vary</td><td> </td><td class="right">16.5.  Vary</td><td class="lineno" valign="top"></td></tr>
366      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
367      <tr><td><a name="diff0024" /></td></tr>
368      <tr><td class="lineno" valign="top"></td><td class="lblock">   The <span class="delete">Vary response-header field's value indicates the set of request-</span></td><td> </td><td class="rblock">   The <span class="insert">"Vary" response-header field's value indicates the set of</span></td><td class="lineno" valign="top"></td></tr>
369      <tr><td class="lineno" valign="top"></td><td class="lblock">   <span class="delete">header fields that fully determines, while the response is fresh,</span></td><td> </td><td class="rblock">   <span class="insert">request-header fields that fully determines, while the response is</span></td><td class="lineno" valign="top"></td></tr>
370      <tr><td class="lineno" valign="top"></td><td class="lblock">   whether a cache is permitted to use the response to reply to a</td><td> </td><td class="rblock">   <span class="insert">fresh, </span>whether a cache is permitted to use the response to reply to a</td><td class="lineno" valign="top"></td></tr>
371      <tr><td class="lineno" valign="top"></td><td class="left">   subsequent request without revalidation.  For uncacheable or stale</td><td> </td><td class="right">   subsequent request without revalidation.  For uncacheable or stale</td><td class="lineno" valign="top"></td></tr>
372      <tr><td class="lineno" valign="top"></td><td class="left">   responses, the Vary field value advises the user agent about the</td><td> </td><td class="right">   responses, the Vary field value advises the user agent about the</td><td class="lineno" valign="top"></td></tr>
373      <tr><td class="lineno" valign="top"></td><td class="left">   criteria that were used to select the representation.  A Vary field</td><td> </td><td class="right">   criteria that were used to select the representation.  A Vary field</td><td class="lineno" valign="top"></td></tr>
374      <tr><td class="lineno" valign="top"></td><td class="left">   value of "*" implies that a cache cannot determine from the request</td><td> </td><td class="right">   value of "*" implies that a cache cannot determine from the request</td><td class="lineno" valign="top"></td></tr>
375      <tr><td class="lineno" valign="top"></td><td class="left">   headers of a subsequent request whether this response is the</td><td> </td><td class="right">   headers of a subsequent request whether this response is the</td><td class="lineno" valign="top"></td></tr>
376      <tr><td class="lineno" valign="top"></td><td class="left">   appropriate representation.  See Section 8 for use of the Vary header</td><td> </td><td class="right">   appropriate representation.  See Section 8 for use of the Vary header</td><td class="lineno" valign="top"></td></tr>
377      <tr><td class="lineno" valign="top"></td><td class="left">   field by caches.</td><td> </td><td class="right">   field by caches.</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>
379      <tr><td><a name="diff0025" /></td></tr>
380      <tr><td class="lineno" valign="top"></td><td class="lblock">     Vary  <span class="delete">= "Vary" ":" ( "*" | 1#field-name )</span></td><td> </td><td class="rblock">     Vary  <span class="insert"> = "Vary" ":" OWS Vary-v</span></td><td class="lineno" valign="top"></td></tr>
381      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">     Vary-v = "*" / 1#field-name</span></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>
383      <tr><td class="lineno" valign="top"></td><td class="left">   An HTTP/1.1 server SHOULD include a Vary header field with any</td><td> </td><td class="right">   An HTTP/1.1 server SHOULD include a Vary header field with any</td><td class="lineno" valign="top"></td></tr>
384      <tr><td class="lineno" valign="top"></td><td class="left">   cacheable response that is subject to server-driven negotiation.</td><td> </td><td class="right">   cacheable response that is subject to server-driven negotiation.</td><td class="lineno" valign="top"></td></tr>
385      <tr><td class="lineno" valign="top"></td><td class="left">   Doing so allows a cache to properly interpret future requests on that</td><td> </td><td class="right">   Doing so allows a cache to properly interpret future requests on that</td><td class="lineno" valign="top"></td></tr>
386      <tr><td class="lineno" valign="top"></td><td class="left">   resource and informs the user agent about the presence of negotiation</td><td> </td><td class="right">   resource and informs the user agent about the presence of negotiation</td><td class="lineno" valign="top"></td></tr>
387      <tr><td class="lineno" valign="top"></td><td class="left">   on that resource.  A server MAY include a Vary header field with a</td><td> </td><td class="right">   on that resource.  A server MAY include a Vary header field with a</td><td class="lineno" valign="top"></td></tr>
388      <tr><td class="lineno" valign="top"></td><td class="left">   non-cacheable response that is subject to server-driven negotiation,</td><td> </td><td class="right">   non-cacheable response that is subject to server-driven negotiation,</td><td class="lineno" valign="top"></td></tr>
389      <tr><td class="lineno" valign="top"></td><td class="left">   since this might provide the user agent with useful information about</td><td> </td><td class="right">   since this might provide the user agent with useful information about</td><td class="lineno" valign="top"></td></tr>
390      <tr><td class="lineno" valign="top"></td><td class="left">   the dimensions over which the response varies at the time of the</td><td> </td><td class="right">   the dimensions over which the response varies at the time of the</td><td class="lineno" valign="top"></td></tr>
391      <tr><td class="lineno" valign="top"></td><td class="left">   response.</td><td> </td><td class="right">   response.</td><td class="lineno" valign="top"></td></tr>
392      <tr><td class="lineno"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno"></td></tr>
393      <tr bgcolor="gray" ><td></td><th><a name="part-l9" /><small>skipping to change at</small><em> page 39, line 37</em></th><th> </th><th><a name="part-r9" /><small>skipping to change at</small><em> page 39, line 38</em></th><td></td></tr>
394      <tr><td class="lineno" valign="top"></td><td class="left">   insensitive.</td><td> </td><td class="right">   insensitive.</td><td class="lineno" valign="top"></td></tr>
395      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
396      <tr><td class="lineno" valign="top"></td><td class="left">   A Vary field value of "*" signals that unspecified parameters not</td><td> </td><td class="right">   A Vary field value of "*" signals that unspecified parameters not</td><td class="lineno" valign="top"></td></tr>
397      <tr><td class="lineno" valign="top"></td><td class="left">   limited to the request-headers (e.g., the network address of the</td><td> </td><td class="right">   limited to the request-headers (e.g., the network address of the</td><td class="lineno" valign="top"></td></tr>
398      <tr><td class="lineno" valign="top"></td><td class="left">   client), play a role in the selection of the response representation.</td><td> </td><td class="right">   client), play a role in the selection of the response representation.</td><td class="lineno" valign="top"></td></tr>
399      <tr><td class="lineno" valign="top"></td><td class="left">   The "*" value MUST NOT be generated by a proxy server; it may only be</td><td> </td><td class="right">   The "*" value MUST NOT be generated by a proxy server; it may only be</td><td class="lineno" valign="top"></td></tr>
400      <tr><td class="lineno" valign="top"></td><td class="left">   generated by an origin server.</td><td> </td><td class="right">   generated by an origin server.</td><td class="lineno" valign="top"></td></tr>
401      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
402      <tr><td class="lineno" valign="top"></td><td class="left">16.6.  Warning</td><td> </td><td class="right">16.6.  Warning</td><td class="lineno" valign="top"></td></tr>
403      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
404      <tr><td><a name="diff0026" /></td></tr>
405      <tr><td class="lineno" valign="top"></td><td class="lblock">   The <span class="delete">Warning general-header field</span> is used to carry additional</td><td> </td><td class="rblock">   The <span class="insert">general-header field "Warning"</span> is used to carry additional</td><td class="lineno" valign="top"></td></tr>
406      <tr><td class="lineno" valign="top"></td><td class="left">   information about the status or transformation of a message which</td><td> </td><td class="right">   information about the status or transformation of a message which</td><td class="lineno" valign="top"></td></tr>
407      <tr><td class="lineno" valign="top"></td><td class="left">   might not be reflected in the message.  This information is typically</td><td> </td><td class="right">   might not be reflected in the message.  This information is typically</td><td class="lineno" valign="top"></td></tr>
408      <tr><td class="lineno" valign="top"></td><td class="left">   used to warn about a possible lack of semantic transparency from</td><td> </td><td class="right">   used to warn about a possible lack of semantic transparency from</td><td class="lineno" valign="top"></td></tr>
409      <tr><td class="lineno" valign="top"></td><td class="left">   caching operations or transformations applied to the entity body of</td><td> </td><td class="right">   caching operations or transformations applied to the entity body of</td><td class="lineno" valign="top"></td></tr>
410      <tr><td class="lineno" valign="top"></td><td class="left">   the message.</td><td> </td><td class="right">   the message.</td><td class="lineno" valign="top"></td></tr>
411      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
412      <tr><td class="lineno" valign="top"></td><td class="left">   Warning headers are sent with responses using:</td><td> </td><td class="right">   Warning headers are sent with responses using:</td><td class="lineno" valign="top"></td></tr>
413      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
414      <tr><td><a name="diff0027" /></td></tr>
415      <tr><td class="lineno" valign="top"></td><td class="lblock">     Warning    = "Warning" ":" <span class="delete">1#warning-value</span></td><td> </td><td class="rblock">     Warning    = "Warning" ":" <span class="insert">OWS Warning-v</span></td><td class="lineno" valign="top"></td></tr>
416      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">     Warning-v  = 1#warning-value</span></td><td class="lineno" valign="top"></td></tr>
417      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
418      <tr><td class="lineno" valign="top"></td><td class="left">     warning-value = warn-code SP warn-agent SP warn-text</td><td> </td><td class="right">     warning-value = warn-code SP warn-agent SP warn-text</td><td class="lineno" valign="top"></td></tr>
419      <tr><td class="lineno" valign="top"></td><td class="left">                                           [SP warn-date]</td><td> </td><td class="right">                                           [SP warn-date]</td><td class="lineno" valign="top"></td></tr>
420      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
421      <tr><td class="lineno" valign="top"></td><td class="left">     warn-code  = 3DIGIT</td><td> </td><td class="right">     warn-code  = 3DIGIT</td><td class="lineno" valign="top"></td></tr>
422      <tr><td><a name="diff0028" /></td></tr>
423      <tr><td class="lineno" valign="top"></td><td class="lblock">     warn-agent = ( uri-host [ ":" port ] ) <span class="delete">|</span> pseudonym</td><td> </td><td class="rblock">     warn-agent = ( uri-host [ ":" port ] ) <span class="insert">/</span> pseudonym</td><td class="lineno" valign="top"></td></tr>
424      <tr><td class="lineno" valign="top"></td><td class="left">                     ; the name or pseudonym of the server adding</td><td> </td><td class="right">                     ; the name or pseudonym of the server adding</td><td class="lineno" valign="top"></td></tr>
425      <tr><td class="lineno" valign="top"></td><td class="left">                     ; the Warning header, for use in debugging</td><td> </td><td class="right">                     ; the Warning header, for use in debugging</td><td class="lineno" valign="top"></td></tr>
426      <tr><td class="lineno" valign="top"></td><td class="left">     warn-text  = quoted-string</td><td> </td><td class="right">     warn-text  = quoted-string</td><td class="lineno" valign="top"></td></tr>
427      <tr><td class="lineno" valign="top"></td><td class="left">     warn-date  = DQUOTE HTTP-date DQUOTE</td><td> </td><td class="right">     warn-date  = DQUOTE HTTP-date DQUOTE</td><td class="lineno" valign="top"></td></tr>
428      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
429      <tr><td class="lineno" valign="top"></td><td class="left">   A response MAY carry more than one Warning header.</td><td> </td><td class="right">   A response MAY carry more than one Warning header.</td><td class="lineno" valign="top"></td></tr>
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>
431      <tr><td class="lineno" valign="top"></td><td class="left">   The warn-text SHOULD be in a natural language and character set that</td><td> </td><td class="right">   The warn-text SHOULD be in a natural language and character set that</td><td class="lineno" valign="top"></td></tr>
432      <tr><td class="lineno" valign="top"></td><td class="left">   is most likely to be intelligible to the human user receiving the</td><td> </td><td class="right">   is most likely to be intelligible to the human user receiving the</td><td class="lineno" valign="top"></td></tr>
433      <tr><td class="lineno" valign="top"></td><td class="left">   response.  This decision MAY be based on any available knowledge,</td><td> </td><td class="right">   response.  This decision MAY be based on any available knowledge,</td><td class="lineno" valign="top"></td></tr>
434      <tr><td class="lineno"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno"></td></tr>
435      <tr bgcolor="gray" ><td></td><th><a name="part-l10" /><small>skipping to change at</small><em> page 43, line 27</em></th><th> </th><th><a name="part-r10" /><small>skipping to change at</small><em> page 43, line 29</em></th><td></td></tr>
436      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
437      <tr><td class="lineno" valign="top"></td><td class="left">   [ISO-8859-1]</td><td> </td><td class="right">   [ISO-8859-1]</td><td class="lineno" valign="top"></td></tr>
438      <tr><td class="lineno" valign="top"></td><td class="left">              International Organization for Standardization,</td><td> </td><td class="right">              International Organization for Standardization,</td><td class="lineno" valign="top"></td></tr>
439      <tr><td class="lineno" valign="top"></td><td class="left">              "Information technology -- 8-bit single-byte coded graphic</td><td> </td><td class="right">              "Information technology -- 8-bit single-byte coded graphic</td><td class="lineno" valign="top"></td></tr>
440      <tr><td class="lineno" valign="top"></td><td class="left">              character sets -- Part 1: Latin alphabet No. 1", ISO/</td><td> </td><td class="right">              character sets -- Part 1: Latin alphabet No. 1", ISO/</td><td class="lineno" valign="top"></td></tr>
441      <tr><td class="lineno" valign="top"></td><td class="left">              IEC 8859-1:1998, 1998.</td><td> </td><td class="right">              IEC 8859-1:1998, 1998.</td><td class="lineno" valign="top"></td></tr>
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>
443      <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>
444      <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>
445      <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>
446      <tr><td><a name="diff0029" /></td></tr>
447      <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>
448      <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>
449      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
450      <tr><td class="lineno" valign="top"></td><td class="left">   [Part2]    Fielding, R., Ed., Gettys, J., Mogul, J., Frystyk, H.,</td><td> </td><td class="right">   [Part2]    Fielding, R., Ed., Gettys, J., Mogul, J., Frystyk, H.,</td><td class="lineno" valign="top"></td></tr>
451      <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>
452      <tr><td class="lineno" valign="top"></td><td class="left">              and J. Reschke, Ed., "HTTP/1.1, part 2: Message</td><td> </td><td class="right">              and J. Reschke, Ed., "HTTP/1.1, part 2: Message</td><td class="lineno" valign="top"></td></tr>
453      <tr><td><a name="diff0030" /></td></tr>
454      <tr><td class="lineno" valign="top"></td><td class="lblock">              Semantics", draft-ietf-httpbis-p2-semantics-0<span class="delete">4</span> (work in</td><td> </td><td class="rblock">              Semantics", draft-ietf-httpbis-p2-semantics-0<span class="insert">5</span> (work in</td><td class="lineno" valign="top"></td></tr>
455      <tr><td class="lineno" valign="top"></td><td class="lblock">              progress), <span class="delete">August</span> 2008.</td><td> </td><td class="rblock">              progress), <span class="insert">November</span> 2008.</td><td class="lineno" valign="top"></td></tr>
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>
457      <tr><td class="lineno" valign="top"></td><td class="left">   [Part3]    Fielding, R., Ed., Gettys, J., Mogul, J., Frystyk, H.,</td><td> </td><td class="right">   [Part3]    Fielding, R., Ed., Gettys, J., Mogul, J., Frystyk, H.,</td><td class="lineno" valign="top"></td></tr>
458      <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>
459      <tr><td class="lineno" valign="top"></td><td class="left">              and J. Reschke, Ed., "HTTP/1.1, part 3: Message Payload</td><td> </td><td class="right">              and J. Reschke, Ed., "HTTP/1.1, part 3: Message Payload</td><td class="lineno" valign="top"></td></tr>
460      <tr><td><a name="diff0031" /></td></tr>
461      <tr><td class="lineno" valign="top"></td><td class="lblock">              and Content Negotiation", draft-ietf-httpbis-p3-payload-0<span class="delete">4</span></td><td> </td><td class="rblock">              and Content Negotiation", draft-ietf-httpbis-p3-payload-0<span class="insert">5</span></td><td class="lineno" valign="top"></td></tr>
462      <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>
463      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
464      <tr><td class="lineno" valign="top"></td><td class="left">   [Part4]    Fielding, R., Ed., Gettys, J., Mogul, J., Frystyk, H.,</td><td> </td><td class="right">   [Part4]    Fielding, R., Ed., Gettys, J., Mogul, J., Frystyk, H.,</td><td class="lineno" valign="top"></td></tr>
465      <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>
466      <tr><td class="lineno" valign="top"></td><td class="left">              and J. Reschke, Ed., "HTTP/1.1, part 4: Conditional</td><td> </td><td class="right">              and J. Reschke, Ed., "HTTP/1.1, part 4: Conditional</td><td class="lineno" valign="top"></td></tr>
467      <tr><td><a name="diff0032" /></td></tr>
468      <tr><td class="lineno" valign="top"></td><td class="lblock">              Requests", draft-ietf-httpbis-p4-conditional-0<span class="delete">4</span> (work in</td><td> </td><td class="rblock">              Requests", draft-ietf-httpbis-p4-conditional-0<span class="insert">5</span> (work in</td><td class="lineno" valign="top"></td></tr>
469      <tr><td class="lineno" valign="top"></td><td class="lblock">              progress), <span class="delete">August</span> 2008.</td><td> </td><td class="rblock">              progress), <span class="insert">November</span> 2008.</td><td class="lineno" valign="top"></td></tr>
470      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
471      <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>
472      <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>
473      <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>
474      <tr><td><a name="diff0033" /></td></tr>
475      <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>
476      <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>
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>
478      <tr><td class="lineno" valign="top"></td><td class="left">   [Part7]    Fielding, R., Ed., Gettys, J., Mogul, J., Frystyk, H.,</td><td> </td><td class="right">   [Part7]    Fielding, R., Ed., Gettys, J., Mogul, J., Frystyk, H.,</td><td class="lineno" valign="top"></td></tr>
479      <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>
480      <tr><td class="lineno" valign="top"></td><td class="left">              and J. Reschke, Ed., "HTTP/1.1, part 7: Authentication",</td><td> </td><td class="right">              and J. Reschke, Ed., "HTTP/1.1, part 7: Authentication",</td><td class="lineno" valign="top"></td></tr>
481      <tr><td><a name="diff0034" /></td></tr>
482      <tr><td class="lineno" valign="top"></td><td class="lblock">              draft-ietf-httpbis-p7-auth-0<span class="delete">4</span> (work in progress),</td><td> </td><td class="rblock">              draft-ietf-httpbis-p7-auth-0<span class="insert">5</span> (work in progress),</td><td class="lineno" valign="top"></td></tr>
483      <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>
484      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
485      <tr><td class="lineno" valign="top"></td><td class="left">   [RFC2047]  Moore, K., "MIME (Multipurpose Internet Mail Extensions)</td><td> </td><td class="right">   [RFC2047]  Moore, K., "MIME (Multipurpose Internet Mail Extensions)</td><td class="lineno" valign="top"></td></tr>
486      <tr><td class="lineno" valign="top"></td><td class="left">              Part Three: Message Header Extensions for Non-ASCII Text",</td><td> </td><td class="right">              Part Three: Message Header Extensions for Non-ASCII Text",</td><td class="lineno" valign="top"></td></tr>
487      <tr><td class="lineno" valign="top"></td><td class="left">              RFC 2047, November 1996.</td><td> </td><td class="right">              RFC 2047, November 1996.</td><td class="lineno" valign="top"></td></tr>
488      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
489      <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>
490      <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>
491      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
492      <tr><td class="lineno" valign="top"></td><td class="left">20.2.  Informative References</td><td> </td><td class="right">20.2.  Informative References</td><td class="lineno" valign="top"></td></tr>
493      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
494      <tr><td class="lineno"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno"></td></tr>
495      <tr bgcolor="gray" ><td></td><th><a name="part-l11" /><small>skipping to change at</small><em> page 45, line 30</em></th><th> </th><th><a name="part-r11" /><small>skipping to change at</small><em> page 45, line 31</em></th><td></td></tr>
496      <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>
497      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
498      <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>
499      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
500      <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>
501      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
502      <tr><td class="lineno" valign="top"></td><td class="left">B.2.  Since draft-ietf-httpbis-p6-cache-00</td><td> </td><td class="right">B.2.  Since draft-ietf-httpbis-p6-cache-00</td><td class="lineno" valign="top"></td></tr>
503      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
504      <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>
505      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
506      <tr><td><a name="diff0035" /></td></tr>
507      <tr><td class="lineno" valign="top"></td><td class="lblock">   o  &lt;http://<span class="delete">www3.</span>tools.ietf.org/wg/httpbis/trac/ticket/9&gt;: "Trailer"</td><td> </td><td class="rblock">   o  &lt;http://tools.ietf.org/wg/httpbis/trac/ticket/9&gt;: "Trailer"</td><td class="lineno" valign="top"></td></tr>
508      <tr><td class="lineno" valign="top"></td><td class="left">      (&lt;http://purl.org/NET/http-errata#trailer-hop&gt;)</td><td> </td><td class="right">      (&lt;http://purl.org/NET/http-errata#trailer-hop&gt;)</td><td class="lineno" valign="top"></td></tr>
509      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
510      <tr><td><a name="diff0036" /></td></tr>
511      <tr><td class="lineno" valign="top"></td><td class="lblock">   o  &lt;http://<span class="delete">www3.tools.ietf.org/wg/httpbis/trac/ticket/12&gt;:</span></td><td> </td><td class="rblock">   o  &lt;http://<span class="insert">tools.ietf.org/wg/httpbis/trac/ticket/12&gt;: "Invalidation</span></td><td class="lineno" valign="top"></td></tr>
512      <tr><td class="lineno" valign="top"></td><td class="lblock">      <span class="delete">"Invalidation </span>after Update or Delete"</td><td> </td><td class="rblock">      after Update or Delete"</td><td class="lineno" valign="top"></td></tr>
513      <tr><td class="lineno" valign="top"></td><td class="left">      (&lt;http://purl.org/NET/http-errata#invalidupd&gt;)</td><td> </td><td class="right">      (&lt;http://purl.org/NET/http-errata#invalidupd&gt;)</td><td class="lineno" valign="top"></td></tr>
514      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
515      <tr><td><a name="diff0037" /></td></tr>
516      <tr><td class="lineno" valign="top"></td><td class="lblock">   o  &lt;http://<span class="delete">www3.tools.ietf.org/wg/httpbis/trac/ticket/35&gt;: "Normative</span></td><td> </td><td class="rblock">   o  &lt;http://<span class="insert">tools.ietf.org/wg/httpbis/trac/ticket/35&gt;: "Normative and</span></td><td class="lineno" valign="top"></td></tr>
517      <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>
518      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
519      <tr><td><a name="diff0038" /></td></tr>
520      <tr><td class="lineno" valign="top"></td><td class="lblock">   o  &lt;http://<span class="delete">www3.tools.ietf.org/wg/httpbis/trac/ticket/48&gt;: "Dat</span>e</td><td> </td><td class="rblock">   o  &lt;http://<span class="insert">tools.ietf.org/wg/httpbis/trac/ticket/48&gt;: "Date referenc</span>e</td><td class="lineno" valign="top"></td></tr>
521      <tr><td class="lineno" valign="top"></td><td class="lblock">      <span class="delete">reference </span>typo"</td><td> </td><td class="rblock">      typo"</td><td class="lineno" valign="top"></td></tr>
522      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
523      <tr><td><a name="diff0039" /></td></tr>
524      <tr><td class="lineno" valign="top"></td><td class="lblock">   o  &lt;http://<span class="delete">www3.tools.ietf.org/wg/httpbis/trac/ticket/49&gt;:</span></td><td> </td><td class="rblock">   o  &lt;http://<span class="insert">tools.ietf.org/wg/httpbis/trac/ticket/49&gt;: "Connection</span></td><td class="lineno" valign="top"></td></tr>
525      <tr><td class="lineno" valign="top"></td><td class="lblock">      <span class="delete">"Connection </span>header text"</td><td> </td><td class="rblock">      header text"</td><td class="lineno" valign="top"></td></tr>
526      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
527      <tr><td><a name="diff0040" /></td></tr>
528      <tr><td class="lineno" valign="top"></td><td class="lblock">   o  &lt;http://<span class="delete">www3.tools.ietf.org/wg/httpbis/trac/ticket/65&gt;:</span></td><td> </td><td class="rblock">   o  &lt;http://<span class="insert">tools.ietf.org/wg/httpbis/trac/ticket/65&gt;: "Informative</span></td><td class="lineno" valign="top"></td></tr>
529      <tr><td class="lineno" valign="top"></td><td class="lblock">      <span class="delete">"Informative </span>references"</td><td> </td><td class="rblock">      references"</td><td class="lineno" valign="top"></td></tr>
530      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">   o  &lt;http://tools.ietf.org/wg/httpbis/trac/ticket/66&gt;: "ISO-8859-1</span></td><td class="lineno" valign="top"></td></tr>
531      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">      Reference"</span></td><td class="lineno" valign="top"></td></tr>
532      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
533      <tr><td><a name="diff0041" /></td></tr>
534      <tr><td class="lineno" valign="top"></td><td class="lblock">   o  &lt;http://<span class="delete">www3.tools.ietf.org/wg/httpbis/trac/ticket/66&gt;:</span></td><td> </td><td class="rblock">   o  &lt;http://<span class="insert">tools.ietf.org/wg/httpbis/trac/ticket/86&gt;: "Normative up-</span></td><td class="lineno" valign="top"></td></tr>
535      <tr><td class="lineno" valign="top"></td><td class="lblock">      <span class="delete">"ISO-8859-1 Reference</span>"</td><td> </td><td class="rblock">      <span class="insert">to-date references</span>"</td><td class="lineno" valign="top"></td></tr>
536      <tr><td class="lineno" valign="top"></td><td class="lblock"><span class="delete">   o  &lt;http://www3.tools.ietf.org/wg/httpbis/trac/ticket/86&gt;: "Normative</span></td><td> </td><td class="rblock"></td><td class="lineno" valign="top"></td></tr>
537      <tr><td class="lineno" valign="top"></td><td class="lblock"><span class="delete">      up-to-date references"</span></td><td> </td><td class="rblock"></td><td class="lineno" valign="top"></td></tr>
538      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
539      <tr><td><a name="diff0042" /></td></tr>
540      <tr><td class="lineno" valign="top"></td><td class="lblock">   o  &lt;http://<span class="delete">www3.</span>tools.ietf.org/wg/httpbis/trac/ticket/87&gt;: "typo in</td><td> </td><td class="rblock">   o  &lt;http://tools.ietf.org/wg/httpbis/trac/ticket/87&gt;: "typo in</td><td class="lineno" valign="top"></td></tr>
541      <tr><td class="lineno" valign="top"></td><td class="left">      13.2.2"</td><td> </td><td class="right">      13.2.2"</td><td class="lineno" valign="top"></td></tr>
542      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
543      <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>
544      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
545      <tr><td class="lineno" valign="top"></td><td class="left">   o  Use names of RFC4234 core rules DQUOTE and HTAB (work in progress</td><td> </td><td class="right">   o  Use names of RFC4234 core rules DQUOTE and HTAB (work in progress</td><td class="lineno" valign="top"></td></tr>
546      <tr><td><a name="diff0043" /></td></tr>
547      <tr><td class="lineno" valign="top"></td><td class="lblock">      on &lt;http://<span class="delete">www3.</span>tools.ietf.org/wg/httpbis/trac/ticket/36&gt;)</td><td> </td><td class="rblock">      on &lt;http://tools.ietf.org/wg/httpbis/trac/ticket/36&gt;)</td><td class="lineno" valign="top"></td></tr>
548      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
549      <tr><td class="lineno" valign="top"></td><td class="left">B.3.  Since draft-ietf-httpbis-p6-cache-01</td><td> </td><td class="right">B.3.  Since draft-ietf-httpbis-p6-cache-01</td><td class="lineno" valign="top"></td></tr>
550      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
551      <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>
552      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
553      <tr><td><a name="diff0044" /></td></tr>
554      <tr><td class="lineno" valign="top"></td><td class="lblock">   o  &lt;http://<span class="delete">www3.tools.ietf.org/wg/httpbis/trac/ticket/82&gt;: "rel_path</span></td><td> </td><td class="rblock">   o  &lt;http://<span class="insert">tools.ietf.org/wg/httpbis/trac/ticket/82&gt;: "rel_path not</span></td><td class="lineno" valign="top"></td></tr>
555      <tr><td class="lineno" valign="top"></td><td class="lblock">      <span class="delete">not </span>used"</td><td> </td><td class="rblock">      used"</td><td class="lineno" valign="top"></td></tr>
556      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
557      <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>
558      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
559      <tr><td class="lineno" valign="top"></td><td class="left">   o  Get rid of duplicate BNF rule names ("host" -&gt; "uri-host") (work</td><td> </td><td class="right">   o  Get rid of duplicate BNF rule names ("host" -&gt; "uri-host") (work</td><td class="lineno" valign="top"></td></tr>
560      <tr><td><a name="diff0045" /></td></tr>
561      <tr><td class="lineno" valign="top"></td><td class="lblock">      in progress on</td><td> </td><td class="rblock">      in progress on<span class="insert"> &lt;http://tools.ietf.org/wg/httpbis/trac/ticket/36&gt;)</span></td><td class="lineno" valign="top"></td></tr>
562      <tr><td class="lineno" valign="top"></td><td class="lblock"><span class="delete">      &lt;http://www3.tools.ietf.org/wg/httpbis/trac/ticket/36&gt;)</span></td><td> </td><td class="rblock"></td><td class="lineno" valign="top"></td></tr>
563      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
564      <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>
565      <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>
566      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
567      <tr><td class="lineno" valign="top"></td><td class="left">B.4.  Since draft-ietf-httpbis-p6-cache-02</td><td> </td><td class="right">B.4.  Since draft-ietf-httpbis-p6-cache-02</td><td class="lineno" valign="top"></td></tr>
568      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
569      <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>
570      <tr><td><a name="diff0046" /></td></tr>
571      <tr><td class="lineno" valign="top"></td><td class="lblock">   (&lt;http://<span class="delete">www3.</span>tools.ietf.org/wg/httpbis/trac/ticket/40&gt;):</td><td> </td><td class="rblock">   (&lt;http://tools.ietf.org/wg/httpbis/trac/ticket/40&gt;):</td><td class="lineno" valign="top"></td></tr>
572      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
573      <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>
574      <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>
575      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
576      <tr><td class="lineno" valign="top"></td><td class="left">B.5.  Since draft-ietf-httpbis-p6-cache-03</td><td> </td><td class="right">B.5.  Since draft-ietf-httpbis-p6-cache-03</td><td class="lineno" valign="top"></td></tr>
577      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
578      <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>
579      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
580      <tr><td><a name="diff0047" /></td></tr>
581      <tr><td class="lineno" valign="top"></td><td class="lblock">   o  &lt;http://<span class="delete">www3.tools.ietf.org/wg/httpbis/trac/ticket/106&gt;: "Vary</span></td><td> </td><td class="rblock">   o  &lt;http://<span class="insert">tools.ietf.org/wg/httpbis/trac/ticket/106&gt;: "Vary header</span></td><td class="lineno" valign="top"></td></tr>
582      <tr><td class="lineno" valign="top"></td><td class="lblock">      <span class="delete">header </span>classification"</td><td> </td><td class="rblock">      classification"</td><td class="lineno" valign="top"></td></tr>
583      <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>
584      <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-p6-cache-04</span></td><td class="lineno" valign="top"></td></tr>
585      <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>
586      <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>
587      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">   (&lt;http://tools.ietf.org/wg/httpbis/trac/ticket/36&gt;):</span></td><td class="lineno" valign="top"></td></tr>
588      <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>
589      <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>
590      <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>
591      <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>
592      <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>
593      <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>
594      <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>
595      <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>
596      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
597      <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>
598      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
599      <tr><td class="lineno" valign="top"></td><td class="left">   A</td><td> </td><td class="right">   A</td><td class="lineno" valign="top"></td></tr>
600      <tr><td class="lineno" valign="top"></td><td class="left">      age  7</td><td> </td><td class="right">      age  7</td><td class="lineno" valign="top"></td></tr>
601      <tr><td class="lineno" valign="top"></td><td class="left">      Age header  27</td><td> </td><td class="right">      Age header  27</td><td class="lineno" valign="top"></td></tr>
602      <tr><td><a name="diff0048" /></td></tr>
603      <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>
604      <tr><td class="lineno" valign="top"></td><td class="left">   C</td><td> </td><td class="right">   C</td><td class="lineno" valign="top"></td></tr>
605      <tr><td class="lineno" valign="top"></td><td class="left">      cache  5</td><td> </td><td class="right">      cache  5</td><td class="lineno" valign="top"></td></tr>
606      <tr><td class="lineno" valign="top"></td><td class="left">      Cache Directives</td><td> </td><td class="right">      Cache Directives</td><td class="lineno" valign="top"></td></tr>
607      <tr><td class="lineno" valign="top"></td><td class="left">         max-age  32-33</td><td> </td><td class="right">         max-age  32-33</td><td class="lineno" valign="top"></td></tr>
608      <tr><td class="lineno" valign="top"></td><td class="left">         max-stale  32</td><td> </td><td class="right">         max-stale  32</td><td class="lineno" valign="top"></td></tr>
609      <tr><td class="lineno" valign="top"></td><td class="left">         min-fresh  32</td><td> </td><td class="right">         min-fresh  32</td><td class="lineno" valign="top"></td></tr>
610      <tr><td class="lineno" valign="top"></td><td class="left">         must-revalidate  34</td><td> </td><td class="right">         must-revalidate  34</td><td class="lineno" valign="top"></td></tr>
611      <tr><td class="lineno" valign="top"></td><td class="left">         no-cache  29</td><td> </td><td class="right">         no-cache  29</td><td class="lineno" valign="top"></td></tr>
612      <tr><td class="lineno" valign="top"></td><td class="left">         no-store  30</td><td> </td><td class="right">         no-store  30</td><td class="lineno" valign="top"></td></tr>
613      <tr><td class="lineno" valign="top"></td><td class="left">         no-transform  35</td><td> </td><td class="right">         no-transform  35</td><td class="lineno" valign="top"></td></tr>
614      <tr><td class="lineno"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno"></td></tr>
615      <tr bgcolor="gray" ><td></td><th><a name="part-l12" /><small>skipping to change at</small><em> page 47, line 34</em></th><th> </th><th><a name="part-r12" /><small>skipping to change at</small><em> page 48, line 6</em></th><td></td></tr>
616      <tr><td class="lineno" valign="top"></td><td class="left">      explicit expiration time  7</td><td> </td><td class="right">      explicit expiration time  7</td><td class="lineno" valign="top"></td></tr>
617      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
618      <tr><td class="lineno" valign="top"></td><td class="left">   F</td><td> </td><td class="right">   F</td><td class="lineno" valign="top"></td></tr>
619      <tr><td class="lineno" valign="top"></td><td class="left">      first-hand  6</td><td> </td><td class="right">      first-hand  6</td><td class="lineno" valign="top"></td></tr>
620      <tr><td class="lineno" valign="top"></td><td class="left">      fresh  7</td><td> </td><td class="right">      fresh  7</td><td class="lineno" valign="top"></td></tr>
621      <tr><td class="lineno" valign="top"></td><td class="left">      freshness lifetime  7</td><td> </td><td class="right">      freshness lifetime  7</td><td class="lineno" valign="top"></td></tr>
622      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
623      <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>
624      <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>
625      <tr><td class="lineno" valign="top"></td><td class="left">         Age  27</td><td> </td><td class="right">         Age  27</td><td class="lineno" valign="top"></td></tr>
626      <tr><td><a name="diff0049" /></td></tr>
627      <tr><td class="lineno" valign="top"></td><td class="lblock">         <span class="delete">age-value</span>  27</td><td> </td><td class="rblock">         <span class="insert">Age-v</span>  27</td><td class="lineno" valign="top"></td></tr>
628      <tr><td class="lineno" valign="top"></td><td class="left">         Cache-Control  28</td><td> </td><td class="right">         Cache-Control  28</td><td class="lineno" valign="top"></td></tr>
629      <tr><td><a name="diff0050" /></td></tr>
630      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">         Cache-Control-v  28</span></td><td class="lineno" valign="top"></td></tr>
631      <tr><td class="lineno" valign="top"></td><td class="left">         cache-directive  28</td><td> </td><td class="right">         cache-directive  28</td><td class="lineno" valign="top"></td></tr>
632      <tr><td class="lineno" valign="top"></td><td class="left">         cache-extension  28</td><td> </td><td class="right">         cache-extension  28</td><td class="lineno" valign="top"></td></tr>
633      <tr><td class="lineno" valign="top"></td><td class="left">         cache-request-directive  28</td><td> </td><td class="right">         cache-request-directive  28</td><td class="lineno" valign="top"></td></tr>
634      <tr><td class="lineno" valign="top"></td><td class="left">         cache-response-directive  28</td><td> </td><td class="right">         cache-response-directive  28</td><td class="lineno" valign="top"></td></tr>
635      <tr><td class="lineno" valign="top"></td><td class="left">         delta-seconds  27</td><td> </td><td class="right">         delta-seconds  27</td><td class="lineno" valign="top"></td></tr>
636      <tr><td class="lineno" valign="top"></td><td class="left">         Expires  37</td><td> </td><td class="right">         Expires  37</td><td class="lineno" valign="top"></td></tr>
637      <tr><td><a name="diff0051" /></td></tr>
638      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">         Expires-v  37</span></td><td class="lineno" valign="top"></td></tr>
639      <tr><td class="lineno" valign="top"></td><td class="left">         extension-pragma  38</td><td> </td><td class="right">         extension-pragma  38</td><td class="lineno" valign="top"></td></tr>
640      <tr><td class="lineno" valign="top"></td><td class="left">         Pragma  38</td><td> </td><td class="right">         Pragma  38</td><td class="lineno" valign="top"></td></tr>
641      <tr><td class="lineno" valign="top"></td><td class="left">         pragma-directive  38</td><td> </td><td class="right">         pragma-directive  38</td><td class="lineno" valign="top"></td></tr>
642      <tr><td><a name="diff0052" /></td></tr>
643      <tr><td class="lineno" valign="top"></td><td class="lblock">         <span class="delete">Vary</span>  38</td><td> </td><td class="rblock">         <span class="insert">Pragma-v</span>  38</td><td class="lineno" valign="top"></td></tr>
644      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">         Vary  39</span></td><td class="lineno" valign="top"></td></tr>
645      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">         Vary-v  39</span></td><td class="lineno" valign="top"></td></tr>
646      <tr><td class="lineno" valign="top"></td><td class="left">         warn-agent  40</td><td> </td><td class="right">         warn-agent  40</td><td class="lineno" valign="top"></td></tr>
647      <tr><td class="lineno" valign="top"></td><td class="left">         warn-code  40</td><td> </td><td class="right">         warn-code  40</td><td class="lineno" valign="top"></td></tr>
648      <tr><td class="lineno" valign="top"></td><td class="left">         warn-date  40</td><td> </td><td class="right">         warn-date  40</td><td class="lineno" valign="top"></td></tr>
649      <tr><td class="lineno" valign="top"></td><td class="left">         warn-text  40</td><td> </td><td class="right">         warn-text  40</td><td class="lineno" valign="top"></td></tr>
650      <tr><td class="lineno" valign="top"></td><td class="left">         Warning  40</td><td> </td><td class="right">         Warning  40</td><td class="lineno" valign="top"></td></tr>
651      <tr><td><a name="diff0053" /></td></tr>
652      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">         Warning-v  40</span></td><td class="lineno" valign="top"></td></tr>
653      <tr><td class="lineno" valign="top"></td><td class="left">         warning-value  40</td><td> </td><td class="right">         warning-value  40</td><td class="lineno" valign="top"></td></tr>
654      <tr><td><a name="diff0054" /></td></tr>
655      <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>
656      <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>
657      <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>
658      <tr><td class="lineno" valign="top"></td><td class="left">         Age  27</td><td> </td><td class="right">         Age  27</td><td class="lineno" valign="top"></td></tr>
659      <tr><td class="lineno" valign="top"></td><td class="left">         Cache-Control  27</td><td> </td><td class="right">         Cache-Control  27</td><td class="lineno" valign="top"></td></tr>
660      <tr><td class="lineno" valign="top"></td><td class="left">         Expires  37</td><td> </td><td class="right">         Expires  37</td><td class="lineno" valign="top"></td></tr>
661      <tr><td class="lineno" valign="top"></td><td class="left">         Pragma  38</td><td> </td><td class="right">         Pragma  38</td><td class="lineno" valign="top"></td></tr>
662      <tr><td class="lineno" valign="top"></td><td class="left">         Vary  38</td><td> </td><td class="right">         Vary  38</td><td class="lineno" valign="top"></td></tr>
663      <tr><td class="lineno" valign="top"></td><td class="left">         Warning  39</td><td> </td><td class="right">         Warning  39</td><td class="lineno" valign="top"></td></tr>
664      <tr><td class="lineno" valign="top"></td><td class="left">      heuristic expiration time  7</td><td> </td><td class="right">      heuristic expiration time  7</td><td class="lineno" valign="top"></td></tr>
665      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
666
667     <tr><td></td><td class="left"></td><td> </td><td class="right"></td><td></td></tr>
668     <tr bgcolor="gray"><th colspan="5" align="center"><a name="end">&nbsp;End of changes. 54 change blocks.&nbsp;</a></th></tr>
669     <tr class="stats"><td></td><th><i>92 lines changed or deleted</i></th><th><i> </i></th><th><i>116 lines changed or added</i></th><td></td></tr>
670     <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>
671   </table>
672   </body>
673   </html>
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