source: draft-ietf-httpbis/diffs/draft-ietf-httpbis-p2-semantics-03-from-2.diff.html @ 1697

Last change on this file since 1697 was 266, checked in by julian.reschke@…, 12 years ago

Enhance reference to definition of LINK/UNLINK/PATCH in RFC 2068.

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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-p2-semantics-02.txt&nbsp;</th><th> </th><th>&nbsp;draft-ietf-httpbis-p2-semantics-03.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><a name="diff0001" /></td></tr>
48      <tr><td class="lineno" valign="top"></td><td class="lblock"><span class="delete">Intended status: Standards Track</span>                    One Laptop per Child</td><td> </td><td class="rblock"><span class="insert">Updates: 2817 (if approved)     </span>                    One Laptop per Child</td><td class="lineno" valign="top"></td></tr>
49      <tr><td class="lineno" valign="top"></td><td class="lblock"><span class="delete">Expires: August 27, 2008        </span>                                J. Mogul</td><td> </td><td class="rblock"><span class="insert">Intended status: Standards Track</span>                                J. Mogul</td><td class="lineno" valign="top"></td></tr>
50      <tr><td class="lineno" valign="top"></td><td class="lblock"><span class="delete">                          </span>                                            HP</td><td> </td><td class="rblock"><span class="insert">Expires: December 19, 2008</span>                                            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">February 24</span>, 2008</td><td> </td><td class="rblock">                                                       <span class="insert">    June 17</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 2: Message Semantics</td><td> </td><td class="right">                  HTTP/1.1, part 2: Message Semantics</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-p2-semantics-0<span class="delete">2</span></td><td> </td><td class="rblock">                   draft-ietf-httpbis-p2-semantics-0<span class="insert">3</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 <span class="delete">August 27</span>, 2008.</td><td> </td><td class="rblock">   This Internet-Draft will expire on <span class="insert">December 19</span>, 2008.</td><td class="lineno" valign="top"></td></tr>
93      <tr><td class="lineno" valign="top"></td><td class="lblock"><span class="delete">                                                                         </span></td><td> </td><td class="rblock"></td><td class="lineno" valign="top"></td></tr>
94      <tr><td class="lineno" valign="top"></td><td class="lblock"><span class="delete">Copyright Notice</span></td><td> </td><td class="rblock"></td><td class="lineno" valign="top"></td></tr>
95      <tr><td class="lineno" valign="top"></td><td class="lblock"><span class="delete">                                                                         </span></td><td> </td><td class="rblock"></td><td class="lineno" valign="top"></td></tr>
96      <tr><td class="lineno" valign="top"></td><td class="lblock"><span class="delete">   Copyright (C) The IETF Trust (2008).</span></td><td> </td><td class="rblock"></td><td class="lineno" valign="top"></td></tr>
97      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
98      <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>
99      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
100      <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>
101      <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>
102      <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>
103      <tr><td class="lineno" valign="top"></td><td class="left">   information initiative since 1990.  This document is Part 2 of the</td><td> </td><td class="right">   information initiative since 1990.  This document is Part 2 of the</td><td class="lineno" valign="top"></td></tr>
104      <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>
105      <tr><td class="lineno" valign="top"></td><td class="left">   "HTTP/1.1" and, taken together, obsoletes RFC 2616.  Part 2 defines</td><td> </td><td class="right">   "HTTP/1.1" and, taken together, obsoletes RFC 2616.  Part 2 defines</td><td class="lineno" valign="top"></td></tr>
106      <tr><td class="lineno" valign="top"></td><td class="left">   the semantics of HTTP messages as expressed by request methods,</td><td> </td><td class="right">   the semantics of HTTP messages as expressed by request methods,</td><td class="lineno" valign="top"></td></tr>
107      <tr><td class="lineno"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno"></td></tr>
108      <tr bgcolor="gray" ><td></td><th><a name="part-l3" /><small>skipping to change at</small><em> page 2, line 29</em></th><th> </th><th><a name="part-r3" /><small>skipping to change at</small><em> page 2, line 25</em></th><td></td></tr>
109      <tr><td class="lineno" valign="top"></td><td class="left">   fields.</td><td> </td><td class="right">   fields.</td><td class="lineno" valign="top"></td></tr>
110      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
111      <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>
112      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
113      <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>
114      <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>
115      <tr><td class="lineno" valign="top"></td><td class="left">   at &lt;http://www.tools.ietf.org/wg/httpbis/trac/report/11&gt; and related</td><td> </td><td class="right">   at &lt;http://www.tools.ietf.org/wg/httpbis/trac/report/11&gt; and related</td><td class="lineno" valign="top"></td></tr>
116      <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>
117      <tr><td class="lineno" valign="top"></td><td class="left">   &lt;http://www.tools.ietf.org/wg/httpbis/&gt;.</td><td> </td><td class="right">   &lt;http://www.tools.ietf.org/wg/httpbis/&gt;.</td><td class="lineno" valign="top"></td></tr>
118      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
119      <tr><td><a name="diff0005" /></td></tr>
120      <tr><td class="lineno" valign="top"></td><td class="lblock">   Th<span class="delete">is draft incorporates those issue resolutions that were either</span></td><td> </td><td class="rblock">   Th<span class="insert">e changes in this draft are summarized in Appendix B.4.</span></td><td class="lineno" valign="top"></td></tr>
121      <tr><td class="lineno" valign="top"></td><td class="lblock"><span class="delete">   collected in the original RFC2616 errata list</span></td><td> </td><td class="rblock"></td><td class="lineno" valign="top"></td></tr>
122      <tr><td class="lineno" valign="top"></td><td class="lblock"><span class="delete">   (&lt;http://purl.org/NET/http-errata&gt;), or which were agreed upon on the</span></td><td> </td><td class="rblock"></td><td class="lineno" valign="top"></td></tr>
123      <tr><td class="lineno" valign="top"></td><td class="lblock"><span class="delete">   mailing list between October 2006 and November 2007 (as published in</span></td><td> </td><td class="rblock"></td><td class="lineno" valign="top"></td></tr>
124      <tr><td class="lineno" valign="top"></td><td class="lblock"><span class="delete">   "draft-lafon-rfc2616bis-03").</span></td><td> </td><td class="rblock"></td><td class="lineno" valign="top"></td></tr>
125      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
126      <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>
127      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
128      <tr><td class="lineno" valign="top"></td><td class="left">   1.  Introduction . . . . . . . . . . . . . . . . . . . . . . . . .  6</td><td> </td><td class="right">   1.  Introduction . . . . . . . . . . . . . . . . . . . . . . . . .  6</td><td class="lineno" valign="top"></td></tr>
129      <tr><td class="lineno" valign="top"></td><td class="left">     1.1.  Requirements . . . . . . . . . . . . . . . . . . . . . . .  6</td><td> </td><td class="right">     1.1.  Requirements . . . . . . . . . . . . . . . . . . . . . . .  6</td><td class="lineno" valign="top"></td></tr>
130      <tr><td class="lineno" valign="top"></td><td class="left">   2.  Notational Conventions and Generic Grammar . . . . . . . . . .  6</td><td> </td><td class="right">   2.  Notational Conventions and Generic Grammar . . . . . . . . . .  6</td><td class="lineno" valign="top"></td></tr>
131      <tr><td class="lineno" valign="top"></td><td class="left">   3.  Method . . . . . . . . . . . . . . . . . . . . . . . . . . . .  8</td><td> </td><td class="right">   3.  Method . . . . . . . . . . . . . . . . . . . . . . . . . . . .  8</td><td class="lineno" valign="top"></td></tr>
132      <tr><td class="lineno" valign="top"></td><td class="left">   4.  Request Header Fields  . . . . . . . . . . . . . . . . . . . .  8</td><td> </td><td class="right">   4.  Request Header Fields  . . . . . . . . . . . . . . . . . . . .  8</td><td class="lineno" valign="top"></td></tr>
133      <tr><td class="lineno" valign="top"></td><td class="left">   5.  Status Code and Reason Phrase  . . . . . . . . . . . . . . . .  9</td><td> </td><td class="right">   5.  Status Code and Reason Phrase  . . . . . . . . . . . . . . . .  9</td><td class="lineno" valign="top"></td></tr>
134      <tr><td><a name="diff0006" /></td></tr>
135      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">     5.1.  Status Code Registry . . . . . . . . . . . . . . . . . . . 11</span></td><td class="lineno" valign="top"></td></tr>
136      <tr><td class="lineno" valign="top"></td><td class="left">   6.  Response Header Fields . . . . . . . . . . . . . . . . . . . . 11</td><td> </td><td class="right">   6.  Response Header Fields . . . . . . . . . . . . . . . . . . . . 11</td><td class="lineno" valign="top"></td></tr>
137      <tr><td><a name="diff0007" /></td></tr>
138      <tr><td class="lineno" valign="top"></td><td class="lblock">   7.  Entity . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1<span class="delete">1</span></td><td> </td><td class="rblock">   7.  Entity . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1<span class="insert">2</span></td><td class="lineno" valign="top"></td></tr>
139      <tr><td class="lineno" valign="top"></td><td class="left">   8.  Method Definitions . . . . . . . . . . . . . . . . . . . . . . 12</td><td> </td><td class="right">   8.  Method Definitions . . . . . . . . . . . . . . . . . . . . . . 12</td><td class="lineno" valign="top"></td></tr>
140      <tr><td class="lineno" valign="top"></td><td class="left">     8.1.  Safe and Idempotent Methods  . . . . . . . . . . . . . . . 12</td><td> </td><td class="right">     8.1.  Safe and Idempotent Methods  . . . . . . . . . . . . . . . 12</td><td class="lineno" valign="top"></td></tr>
141      <tr><td class="lineno" valign="top"></td><td class="left">       8.1.1.  Safe Methods . . . . . . . . . . . . . . . . . . . . . 12</td><td> </td><td class="right">       8.1.1.  Safe Methods . . . . . . . . . . . . . . . . . . . . . 12</td><td class="lineno" valign="top"></td></tr>
142      <tr><td><a name="diff0008" /></td></tr>
143      <tr><td class="lineno" valign="top"></td><td class="lblock">       8.1.2.  Idempotent Methods . . . . . . . . . . . . . . . . . . 1<span class="delete">2</span></td><td> </td><td class="rblock">       8.1.2.  Idempotent Methods . . . . . . . . . . . . . . . . . . 1<span class="insert">3</span></td><td class="lineno" valign="top"></td></tr>
144      <tr><td class="lineno" valign="top"></td><td class="left">     8.2.  OPTIONS  . . . . . . . . . . . . . . . . . . . . . . . . . 13</td><td> </td><td class="right">     8.2.  OPTIONS  . . . . . . . . . . . . . . . . . . . . . . . . . 13</td><td class="lineno" valign="top"></td></tr>
145      <tr><td class="lineno" valign="top"></td><td class="left">     8.3.  GET  . . . . . . . . . . . . . . . . . . . . . . . . . . . 14</td><td> </td><td class="right">     8.3.  GET  . . . . . . . . . . . . . . . . . . . . . . . . . . . 14</td><td class="lineno" valign="top"></td></tr>
146      <tr><td><a name="diff0009" /></td></tr>
147      <tr><td class="lineno" valign="top"></td><td class="lblock">     8.4.  HEAD . . . . . . . . . . . . . . . . . . . . . . . . . . . 1<span class="delete">4</span></td><td> </td><td class="rblock">     8.4.  HEAD . . . . . . . . . . . . . . . . . . . . . . . . . . . 1<span class="insert">5</span></td><td class="lineno" valign="top"></td></tr>
148      <tr><td class="lineno" valign="top"></td><td class="left">     8.5.  POST . . . . . . . . . . . . . . . . . . . . . . . . . . . 15</td><td> </td><td class="right">     8.5.  POST . . . . . . . . . . . . . . . . . . . . . . . . . . . 15</td><td class="lineno" valign="top"></td></tr>
149      <tr><td class="lineno" valign="top"></td><td class="left">     8.6.  PUT  . . . . . . . . . . . . . . . . . . . . . . . . . . . 16</td><td> </td><td class="right">     8.6.  PUT  . . . . . . . . . . . . . . . . . . . . . . . . . . . 16</td><td class="lineno" valign="top"></td></tr>
150      <tr><td class="lineno" valign="top"></td><td class="left">     8.7.  DELETE . . . . . . . . . . . . . . . . . . . . . . . . . . 17</td><td> </td><td class="right">     8.7.  DELETE . . . . . . . . . . . . . . . . . . . . . . . . . . 17</td><td class="lineno" valign="top"></td></tr>
151      <tr><td class="lineno" valign="top"></td><td class="left">     8.8.  TRACE  . . . . . . . . . . . . . . . . . . . . . . . . . . 17</td><td> </td><td class="right">     8.8.  TRACE  . . . . . . . . . . . . . . . . . . . . . . . . . . 17</td><td class="lineno" valign="top"></td></tr>
152      <tr><td class="lineno" valign="top"></td><td class="left">     8.9.  CONNECT  . . . . . . . . . . . . . . . . . . . . . . . . . 18</td><td> </td><td class="right">     8.9.  CONNECT  . . . . . . . . . . . . . . . . . . . . . . . . . 18</td><td class="lineno" valign="top"></td></tr>
153      <tr><td class="lineno" valign="top"></td><td class="left">   9.  Status Code Definitions  . . . . . . . . . . . . . . . . . . . 18</td><td> </td><td class="right">   9.  Status Code Definitions  . . . . . . . . . . . . . . . . . . . 18</td><td class="lineno" valign="top"></td></tr>
154      <tr><td class="lineno" valign="top"></td><td class="left">     9.1.  Informational 1xx  . . . . . . . . . . . . . . . . . . . . 18</td><td> </td><td class="right">     9.1.  Informational 1xx  . . . . . . . . . . . . . . . . . . . . 18</td><td class="lineno" valign="top"></td></tr>
155      <tr><td><a name="diff0010" /></td></tr>
156      <tr><td class="lineno" valign="top"></td><td class="lblock">       9.1.1.  100 Continue . . . . . . . . . . . . . . . . . . . . . 1<span class="delete">8</span></td><td> </td><td class="rblock">       9.1.1.  100 Continue . . . . . . . . . . . . . . . . . . . . . 1<span class="insert">9</span></td><td class="lineno" valign="top"></td></tr>
157      <tr><td class="lineno" valign="top"></td><td class="left">       9.1.2.  101 Switching Protocols  . . . . . . . . . . . . . . . 19</td><td> </td><td class="right">       9.1.2.  101 Switching Protocols  . . . . . . . . . . . . . . . 19</td><td class="lineno" valign="top"></td></tr>
158      <tr><td class="lineno" valign="top"></td><td class="left">     9.2.  Successful 2xx . . . . . . . . . . . . . . . . . . . . . . 19</td><td> </td><td class="right">     9.2.  Successful 2xx . . . . . . . . . . . . . . . . . . . . . . 19</td><td class="lineno" valign="top"></td></tr>
159      <tr><td class="lineno" valign="top"></td><td class="left">       9.2.1.  200 OK . . . . . . . . . . . . . . . . . . . . . . . . 19</td><td> </td><td class="right">       9.2.1.  200 OK . . . . . . . . . . . . . . . . . . . . . . . . 19</td><td class="lineno" valign="top"></td></tr>
160      <tr><td><a name="diff0011" /></td></tr>
161      <tr><td class="lineno" valign="top"></td><td class="lblock">       9.2.2.  201 Created  . . . . . . . . . . . . . . . . . . . . . <span class="delete">19</span></td><td> </td><td class="rblock">       9.2.2.  201 Created  . . . . . . . . . . . . . . . . . . . . . <span class="insert">20</span></td><td class="lineno" valign="top"></td></tr>
162      <tr><td class="lineno" valign="top"></td><td class="left">       9.2.3.  202 Accepted . . . . . . . . . . . . . . . . . . . . . 20</td><td> </td><td class="right">       9.2.3.  202 Accepted . . . . . . . . . . . . . . . . . . . . . 20</td><td class="lineno" valign="top"></td></tr>
163      <tr><td class="lineno" valign="top"></td><td class="left">       9.2.4.  203 Non-Authoritative Information  . . . . . . . . . . 20</td><td> </td><td class="right">       9.2.4.  203 Non-Authoritative Information  . . . . . . . . . . 20</td><td class="lineno" valign="top"></td></tr>
164      <tr><td><a name="diff0012" /></td></tr>
165      <tr><td class="lineno" valign="top"></td><td class="lblock">       9.2.5.  204 No Content . . . . . . . . . . . . . . . . . . . . 2<span class="delete">0</span></td><td> </td><td class="rblock">       9.2.5.  204 No Content . . . . . . . . . . . . . . . . . . . . 2<span class="insert">1</span></td><td class="lineno" valign="top"></td></tr>
166      <tr><td class="lineno" valign="top"></td><td class="left">       9.2.6.  205 Reset Content  . . . . . . . . . . . . . . . . . . 21</td><td> </td><td class="right">       9.2.6.  205 Reset Content  . . . . . . . . . . . . . . . . . . 21</td><td class="lineno" valign="top"></td></tr>
167      <tr><td class="lineno" valign="top"></td><td class="left">       9.2.7.  206 Partial Content  . . . . . . . . . . . . . . . . . 21</td><td> </td><td class="right">       9.2.7.  206 Partial Content  . . . . . . . . . . . . . . . . . 21</td><td class="lineno" valign="top"></td></tr>
168      <tr><td class="lineno" valign="top"></td><td class="left">     9.3.  Redirection 3xx  . . . . . . . . . . . . . . . . . . . . . 21</td><td> </td><td class="right">     9.3.  Redirection 3xx  . . . . . . . . . . . . . . . . . . . . . 21</td><td class="lineno" valign="top"></td></tr>
169      <tr><td><a name="diff0013" /></td></tr>
170      <tr><td class="lineno" valign="top"></td><td class="lblock">       9.3.1.  300 Multiple Choices . . . . . . . . . . . . . . . . . 2<span class="delete">1</span></td><td> </td><td class="rblock">       9.3.1.  300 Multiple Choices . . . . . . . . . . . . . . . . . 2<span class="insert">2</span></td><td class="lineno" valign="top"></td></tr>
171      <tr><td class="lineno" valign="top"></td><td class="left">       9.3.2.  301 Moved Permanently  . . . . . . . . . . . . . . . . 22</td><td> </td><td class="right">       9.3.2.  301 Moved Permanently  . . . . . . . . . . . . . . . . 22</td><td class="lineno" valign="top"></td></tr>
172      <tr><td><a name="diff0014" /></td></tr>
173      <tr><td class="lineno" valign="top"></td><td class="lblock">       9.3.3.  302 Found  . . . . . . . . . . . . . . . . . . . . . . 2<span class="delete">2</span></td><td> </td><td class="rblock">       9.3.3.  302 Found  . . . . . . . . . . . . . . . . . . . . . . 2<span class="insert">3</span></td><td class="lineno" valign="top"></td></tr>
174      <tr><td class="lineno" valign="top"></td><td class="left">       9.3.4.  303 See Other  . . . . . . . . . . . . . . . . . . . . 23</td><td> </td><td class="right">       9.3.4.  303 See Other  . . . . . . . . . . . . . . . . . . . . 23</td><td class="lineno" valign="top"></td></tr>
175      <tr><td><a name="diff0015" /></td></tr>
176      <tr><td class="lineno" valign="top"></td><td class="lblock">       9.3.5.  304 Not Modified . . . . . . . . . . . . . . . . . . . 2<span class="delete">3</span></td><td> </td><td class="rblock">       9.3.5.  304 Not Modified . . . . . . . . . . . . . . . . . . . 2<span class="insert">4</span></td><td class="lineno" valign="top"></td></tr>
177      <tr><td class="lineno" valign="top"></td><td class="lblock">       9.3.6.  305 Use Proxy  . . . . . . . . . . . . . . . . . . . . 2<span class="delete">3</span></td><td> </td><td class="rblock">       9.3.6.  305 Use Proxy  . . . . . . . . . . . . . . . . . . . . 2<span class="insert">4</span></td><td class="lineno" valign="top"></td></tr>
178      <tr><td class="lineno" valign="top"></td><td class="left">       9.3.7.  306 (Unused) . . . . . . . . . . . . . . . . . . . . . 24</td><td> </td><td class="right">       9.3.7.  306 (Unused) . . . . . . . . . . . . . . . . . . . . . 24</td><td class="lineno" valign="top"></td></tr>
179      <tr><td class="lineno" valign="top"></td><td class="left">       9.3.8.  307 Temporary Redirect . . . . . . . . . . . . . . . . 24</td><td> </td><td class="right">       9.3.8.  307 Temporary Redirect . . . . . . . . . . . . . . . . 24</td><td class="lineno" valign="top"></td></tr>
180      <tr><td><a name="diff0016" /></td></tr>
181      <tr><td class="lineno" valign="top"></td><td class="lblock">     9.4.  Client Error 4xx . . . . . . . . . . . . . . . . . . . . . 2<span class="delete">4</span></td><td> </td><td class="rblock">     9.4.  Client Error 4xx . . . . . . . . . . . . . . . . . . . . . 2<span class="insert">5</span></td><td class="lineno" valign="top"></td></tr>
182      <tr><td class="lineno" valign="top"></td><td class="left">       9.4.1.  400 Bad Request  . . . . . . . . . . . . . . . . . . . 25</td><td> </td><td class="right">       9.4.1.  400 Bad Request  . . . . . . . . . . . . . . . . . . . 25</td><td class="lineno" valign="top"></td></tr>
183      <tr><td class="lineno" valign="top"></td><td class="left">       9.4.2.  401 Unauthorized . . . . . . . . . . . . . . . . . . . 25</td><td> </td><td class="right">       9.4.2.  401 Unauthorized . . . . . . . . . . . . . . . . . . . 25</td><td class="lineno" valign="top"></td></tr>
184      <tr><td class="lineno" valign="top"></td><td class="left">       9.4.3.  402 Payment Required . . . . . . . . . . . . . . . . . 25</td><td> </td><td class="right">       9.4.3.  402 Payment Required . . . . . . . . . . . . . . . . . 25</td><td class="lineno" valign="top"></td></tr>
185      <tr><td class="lineno" valign="top"></td><td class="left">       9.4.4.  403 Forbidden  . . . . . . . . . . . . . . . . . . . . 25</td><td> </td><td class="right">       9.4.4.  403 Forbidden  . . . . . . . . . . . . . . . . . . . . 25</td><td class="lineno" valign="top"></td></tr>
186      <tr><td><a name="diff0017" /></td></tr>
187      <tr><td class="lineno" valign="top"></td><td class="lblock">       9.4.5.  404 Not Found  . . . . . . . . . . . . . . . . . . . . 2<span class="delete">5</span></td><td> </td><td class="rblock">       9.4.5.  404 Not Found  . . . . . . . . . . . . . . . . . . . . 2<span class="insert">6</span></td><td class="lineno" valign="top"></td></tr>
188      <tr><td class="lineno" valign="top"></td><td class="lblock">       9.4.6.  405 Method Not Allowed . . . . . . . . . . . . . . . . 2<span class="delete">5</span></td><td> </td><td class="rblock">       9.4.6.  405 Method Not Allowed . . . . . . . . . . . . . . . . 2<span class="insert">6</span></td><td class="lineno" valign="top"></td></tr>
189      <tr><td class="lineno" valign="top"></td><td class="lblock">       9.4.7.  406 Not Acceptable . . . . . . . . . . . . . . . . . . 2<span class="delete">5</span></td><td> </td><td class="rblock">       9.4.7.  406 Not Acceptable . . . . . . . . . . . . . . . . . . 2<span class="insert">6</span></td><td class="lineno" valign="top"></td></tr>
190      <tr><td class="lineno" valign="top"></td><td class="left">       9.4.8.  407 Proxy Authentication Required  . . . . . . . . . . 26</td><td> </td><td class="right">       9.4.8.  407 Proxy Authentication Required  . . . . . . . . . . 26</td><td class="lineno" valign="top"></td></tr>
191      <tr><td><a name="diff0018" /></td></tr>
192      <tr><td class="lineno" valign="top"></td><td class="lblock">       9.4.9.  408 Request Timeout  . . . . . . . . . . . . . . . . . 2<span class="delete">6</span></td><td> </td><td class="rblock">       9.4.9.  408 Request Timeout  . . . . . . . . . . . . . . . . . 2<span class="insert">7</span></td><td class="lineno" valign="top"></td></tr>
193      <tr><td class="lineno" valign="top"></td><td class="lblock">       9.4.10. 409 Conflict . . . . . . . . . . . . . . . . . . . . . 2<span class="delete">6</span></td><td> </td><td class="rblock">       9.4.10. 409 Conflict . . . . . . . . . . . . . . . . . . . . . 2<span class="insert">7</span></td><td class="lineno" valign="top"></td></tr>
194      <tr><td class="lineno" valign="top"></td><td class="left">       9.4.11. 410 Gone . . . . . . . . . . . . . . . . . . . . . . . 27</td><td> </td><td class="right">       9.4.11. 410 Gone . . . . . . . . . . . . . . . . . . . . . . . 27</td><td class="lineno" valign="top"></td></tr>
195      <tr><td><a name="diff0019" /></td></tr>
196      <tr><td class="lineno" valign="top"></td><td class="lblock">       9.4.12. 411 Length Required  . . . . . . . . . . . . . . . . . 2<span class="delete">7</span></td><td> </td><td class="rblock">       9.4.12. 411 Length Required  . . . . . . . . . . . . . . . . . 2<span class="insert">8</span></td><td class="lineno" valign="top"></td></tr>
197      <tr><td class="lineno" valign="top"></td><td class="lblock">       9.4.13. 412 Precondition Failed  . . . . . . . . . . . . . . . 2<span class="delete">7</span></td><td> </td><td class="rblock">       9.4.13. 412 Precondition Failed  . . . . . . . . . . . . . . . 2<span class="insert">8</span></td><td class="lineno" valign="top"></td></tr>
198      <tr><td class="lineno" valign="top"></td><td class="lblock">       9.4.14. 413 Request Entity Too Large . . . . . . . . . . . . . 2<span class="delete">7</span></td><td> </td><td class="rblock">       9.4.14. 413 Request Entity Too Large . . . . . . . . . . . . . 2<span class="insert">8</span></td><td class="lineno" valign="top"></td></tr>
199      <tr><td class="lineno" valign="top"></td><td class="left">       9.4.15. 414 Request-URI Too Long . . . . . . . . . . . . . . . 28</td><td> </td><td class="right">       9.4.15. 414 Request-URI Too Long . . . . . . . . . . . . . . . 28</td><td class="lineno" valign="top"></td></tr>
200      <tr><td class="lineno" valign="top"></td><td class="left">       9.4.16. 415 Unsupported Media Type . . . . . . . . . . . . . . 28</td><td> </td><td class="right">       9.4.16. 415 Unsupported Media Type . . . . . . . . . . . . . . 28</td><td class="lineno" valign="top"></td></tr>
201      <tr><td class="lineno" valign="top"></td><td class="left">       9.4.17. 416 Requested Range Not Satisfiable  . . . . . . . . . 28</td><td> </td><td class="right">       9.4.17. 416 Requested Range Not Satisfiable  . . . . . . . . . 28</td><td class="lineno" valign="top"></td></tr>
202      <tr><td><a name="diff0020" /></td></tr>
203      <tr><td class="lineno" valign="top"></td><td class="lblock">       9.4.18. 417 Expectation Failed . . . . . . . . . . . . . . . . 2<span class="delete">8</span></td><td> </td><td class="rblock">       9.4.18. 417 Expectation Failed . . . . . . . . . . . . . . . . 2<span class="insert">9</span></td><td class="lineno" valign="top"></td></tr>
204      <tr><td class="lineno" valign="top"></td><td class="lblock">     9.5.  Server Error 5xx . . . . . . . . . . . . . . . . . . . . . 2<span class="delete">8</span></td><td> </td><td class="rblock">     9.5.  Server Error 5xx . . . . . . . . . . . . . . . . . . . . . 2<span class="insert">9</span></td><td class="lineno" valign="top"></td></tr>
205      <tr><td class="lineno" valign="top"></td><td class="lblock">       9.5.1.  500 Internal Server Error  . . . . . . . . . . . . . . 2<span class="delete">8</span></td><td> </td><td class="rblock">       9.5.1.  500 Internal Server Error  . . . . . . . . . . . . . . 2<span class="insert">9</span></td><td class="lineno" valign="top"></td></tr>
206      <tr><td class="lineno" valign="top"></td><td class="left">       9.5.2.  501 Not Implemented  . . . . . . . . . . . . . . . . . 29</td><td> </td><td class="right">       9.5.2.  501 Not Implemented  . . . . . . . . . . . . . . . . . 29</td><td class="lineno" valign="top"></td></tr>
207      <tr><td class="lineno" valign="top"></td><td class="left">       9.5.3.  502 Bad Gateway  . . . . . . . . . . . . . . . . . . . 29</td><td> </td><td class="right">       9.5.3.  502 Bad Gateway  . . . . . . . . . . . . . . . . . . . 29</td><td class="lineno" valign="top"></td></tr>
208      <tr><td class="lineno" valign="top"></td><td class="left">       9.5.4.  503 Service Unavailable  . . . . . . . . . . . . . . . 29</td><td> </td><td class="right">       9.5.4.  503 Service Unavailable  . . . . . . . . . . . . . . . 29</td><td class="lineno" valign="top"></td></tr>
209      <tr><td><a name="diff0021" /></td></tr>
210      <tr><td class="lineno" valign="top"></td><td class="lblock">       9.5.5.  504 Gateway Timeout  . . . . . . . . . . . . . . . . . <span class="delete">29</span></td><td> </td><td class="rblock">       9.5.5.  504 Gateway Timeout  . . . . . . . . . . . . . . . . . <span class="insert">30</span></td><td class="lineno" valign="top"></td></tr>
211      <tr><td class="lineno" valign="top"></td><td class="lblock">       9.5.6.  505 HTTP Version Not Supported . . . . . . . . . . . . <span class="delete">29</span></td><td> </td><td class="rblock">       9.5.6.  505 HTTP Version Not Supported . . . . . . . . . . . . <span class="insert">30</span></td><td class="lineno" valign="top"></td></tr>
212      <tr><td class="lineno" valign="top"></td><td class="left">   10. Header Field Definitions . . . . . . . . . . . . . . . . . . . 30</td><td> </td><td class="right">   10. Header Field Definitions . . . . . . . . . . . . . . . . . . . 30</td><td class="lineno" valign="top"></td></tr>
213      <tr><td class="lineno" valign="top"></td><td class="left">     10.1. Allow  . . . . . . . . . . . . . . . . . . . . . . . . . . 30</td><td> </td><td class="right">     10.1. Allow  . . . . . . . . . . . . . . . . . . . . . . . . . . 30</td><td class="lineno" valign="top"></td></tr>
214      <tr><td><a name="diff0022" /></td></tr>
215      <tr><td class="lineno" valign="top"></td><td class="lblock">     10.2. Expect . . . . . . . . . . . . . . . . . . . . . . . . . . 3<span class="delete">0</span></td><td> </td><td class="rblock">     10.2. Expect . . . . . . . . . . . . . . . . . . . . . . . . . . 3<span class="insert">1</span></td><td class="lineno" valign="top"></td></tr>
216      <tr><td class="lineno" valign="top"></td><td class="left">     10.3. From . . . . . . . . . . . . . . . . . . . . . . . . . . . 31</td><td> </td><td class="right">     10.3. From . . . . . . . . . . . . . . . . . . . . . . . . . . . 31</td><td class="lineno" valign="top"></td></tr>
217      <tr><td class="lineno" valign="top"></td><td class="left">     10.4. Location . . . . . . . . . . . . . . . . . . . . . . . . . 32</td><td> </td><td class="right">     10.4. Location . . . . . . . . . . . . . . . . . . . . . . . . . 32</td><td class="lineno" valign="top"></td></tr>
218      <tr><td class="lineno" valign="top"></td><td class="left">     10.5. Max-Forwards . . . . . . . . . . . . . . . . . . . . . . . 33</td><td> </td><td class="right">     10.5. Max-Forwards . . . . . . . . . . . . . . . . . . . . . . . 33</td><td class="lineno" valign="top"></td></tr>
219      <tr><td class="lineno" valign="top"></td><td class="left">     10.6. Referer  . . . . . . . . . . . . . . . . . . . . . . . . . 33</td><td> </td><td class="right">     10.6. Referer  . . . . . . . . . . . . . . . . . . . . . . . . . 33</td><td class="lineno" valign="top"></td></tr>
220      <tr><td class="lineno" valign="top"></td><td class="left">     10.7. Retry-After  . . . . . . . . . . . . . . . . . . . . . . . 34</td><td> </td><td class="right">     10.7. Retry-After  . . . . . . . . . . . . . . . . . . . . . . . 34</td><td class="lineno" valign="top"></td></tr>
221      <tr><td class="lineno" valign="top"></td><td class="left">     10.8. Server . . . . . . . . . . . . . . . . . . . . . . . . . . 34</td><td> </td><td class="right">     10.8. Server . . . . . . . . . . . . . . . . . . . . . . . . . . 34</td><td class="lineno" valign="top"></td></tr>
222      <tr><td class="lineno" valign="top"></td><td class="left">     10.9. User-Agent . . . . . . . . . . . . . . . . . . . . . . . . 35</td><td> </td><td class="right">     10.9. User-Agent . . . . . . . . . . . . . . . . . . . . . . . . 35</td><td class="lineno" valign="top"></td></tr>
223      <tr><td class="lineno" valign="top"></td><td class="left">   11. IANA Considerations  . . . . . . . . . . . . . . . . . . . . . 35</td><td> </td><td class="right">   11. IANA Considerations  . . . . . . . . . . . . . . . . . . . . . 35</td><td class="lineno" valign="top"></td></tr>
224      <tr><td><a name="diff0023" /></td></tr>
225      <tr><td class="lineno" valign="top"></td><td class="lblock">   <span class="delete">12. Security Considerations </span> . . . . . . . . . . . . . . . . . . . 35</td><td> </td><td class="rblock">   <span class="insert">  11.1. Status Code Registry</span> . . . . . . . . . . . . . . . . . . . 35</td><td class="lineno" valign="top"></td></tr>
226      <tr><td class="lineno" valign="top"></td><td class="lblock">     1<span class="delete">2.1. Transfer of Sensitive Information  . . . . . . . . . . . . 35</span></td><td> </td><td class="rblock">     1<span class="insert">1.2. Message Header Registration  . . . . . . . . . . . . . . . 37</span></td><td class="lineno" valign="top"></td></tr>
227      <tr><td class="lineno" valign="top"></td><td class="lblock">   <span class="delete">  12.2. Encoding Sensitive Information in URIs . . . . . . . . . . 36</span></td><td> </td><td class="rblock">   <span class="insert">12. Security Considerations  . . . . . . . . . . . . . . . . . . . 37</span></td><td class="lineno" valign="top"></td></tr>
228      <tr><td class="lineno" valign="top"></td><td class="lblock">     12.<span class="delete">3. Location Headers and Spoofing  . .</span> . . . . . . . . . . . . 37</td><td> </td><td class="rblock">     12.<span class="insert">1. Transfer of Sensitive Information </span> . . . . . . . . . . . . 37</td><td class="lineno" valign="top"></td></tr>
229      <tr><td class="lineno" valign="top"></td><td class="lblock">   <span class="delete">13. Acknowledgments  . . . . . . . . . . . . . . . . . . . . . . . 37</span></td><td> </td><td class="rblock">   <span class="insert">  12.2. Encoding Sensitive Information in URIs . . . . . . . . . . 38</span></td><td class="lineno" valign="top"></td></tr>
230      <tr><td class="lineno" valign="top"></td><td class="lblock">   <span class="delete">14. References . . . . . . . . . . . . . . . . . . . . . . . . . . 37</span></td><td> </td><td class="rblock">   <span class="insert">  12.3. Location Headers and Spoofing  . . . . . . . . . . . . . . 39</span></td><td class="lineno" valign="top"></td></tr>
231      <tr><td class="lineno" valign="top"></td><td class="lblock">   <span class="delete">  14.1. Normative References . . . . . . . . . . . . . . . . . . . 37</span></td><td> </td><td class="rblock">   <span class="insert">13. Acknowledgments  . . . . . . . . . . . . . . . . . . . . . . . 39</span></td><td class="lineno" valign="top"></td></tr>
232      <tr><td class="lineno" valign="top"></td><td class="lblock">   <span class="delete">  14.2. Informative References . . . . . . . . . . . . . . . . . . 38</span></td><td> </td><td class="rblock">   <span class="insert">14. References . . . . . . . . . . . . . . . . . . . . . . . . . . 39</span></td><td class="lineno" valign="top"></td></tr>
233      <tr><td class="lineno" valign="top"></td><td class="lblock">   <span class="delete">Appendix A.  Compatibility with Previous Versions  . . . . . . . . 38</span></td><td> </td><td class="rblock">   <span class="insert">  14.1. Normative References . . . . . . . . . . . . . . . . . . . 39</span></td><td class="lineno" valign="top"></td></tr>
234      <tr><td class="lineno" valign="top"></td><td class="lblock">     <span class="delete">A.1.  Changes from RFC 2068  . . . . . . . . . . . . . . . . . . 38</span></td><td> </td><td class="rblock">     <span class="insert">14.2. Informative References . . . . . . . . . . . . . . . . . . 40</span></td><td class="lineno" valign="top"></td></tr>
235      <tr><td class="lineno" valign="top"></td><td class="lblock">   <span class="delete">  A.2.  Changes from RFC 2616  . . . . . . . . . . . . . . . . . . 39</span></td><td> </td><td class="rblock">   <span class="insert">Appendix A.  Compatibility with Previous Versions  . . . . . . . . 40</span></td><td class="lineno" valign="top"></td></tr>
236      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">     A.1.  Changes from RFC 2068  . . . . . . . . . . . . . . . . . . 40</span></td><td class="lineno" valign="top"></td></tr>
237      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">     A.2.  Changes from RFC 2616  . . . . . . . . . . . . . . . . . . 41</span></td><td class="lineno" valign="top"></td></tr>
238      <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>
239      <tr><td><a name="diff0024" /></td></tr>
240      <tr><td class="lineno" valign="top"></td><td class="lblock">                publication)  . . . . . . . . . . . . . . . . . . . . 4<span class="delete">0</span></td><td> </td><td class="rblock">                publication)  . . . . . . . . . . . . . . . . . . . . 4<span class="insert">2</span></td><td class="lineno" valign="top"></td></tr>
241      <tr><td class="lineno" valign="top"></td><td class="lblock">     B.1.  Since RFC2616  . . . . . . . . . . . . . . . . . . . . . . 4<span class="delete">0</span></td><td> </td><td class="rblock">     B.1.  Since RFC2616  . . . . . . . . . . . . . . . . . . . . . . 4<span class="insert">2</span></td><td class="lineno" valign="top"></td></tr>
242      <tr><td class="lineno" valign="top"></td><td class="lblock">     B.2.  Since draft-ietf-httpbis-p2-semantics-00 . . . . . . . . . 4<span class="delete">0</span></td><td> </td><td class="rblock">     B.2.  Since draft-ietf-httpbis-p2-semantics-00 . . . . . . . . . 4<span class="insert">2</span></td><td class="lineno" valign="top"></td></tr>
243      <tr><td class="lineno" valign="top"></td><td class="lblock">     B.3.  Since draft-ietf-httpbis-p2-semantics-01 . . . . . . . . . 4<span class="delete">1</span></td><td> </td><td class="rblock">     B.3.  Since draft-ietf-httpbis-p2-semantics-01 . . . . . . . . . 4<span class="insert">3</span></td><td class="lineno" valign="top"></td></tr>
244      <tr><td class="lineno" valign="top"></td><td class="lblock">   <span class="delete">Index  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41</span></td><td> </td><td class="rblock">   <span class="insert">  B.4.  Since draft-ietf-httpbis-p2-semantics-02 . . . . . . . . . 43</span></td><td class="lineno" valign="top"></td></tr>
245      <tr><td class="lineno" valign="top"></td><td class="lblock">   <span class="delete">Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . . 45</span></td><td> </td><td class="rblock">   <span class="insert">Index  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44</span></td><td class="lineno" valign="top"></td></tr>
246      <tr><td class="lineno" valign="top"></td><td class="lblock">   <span class="delete">Intellectual Property and Copyright Statements</span> . . . . . . . . . . 48</td><td> </td><td class="rblock">   <span class="insert">Authors' Addresses . . . . . . . . . . . . . .</span> . . . . . . . . . . 48</td><td class="lineno" valign="top"></td></tr>
247      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">   Intellectual Property and Copyright Statements . . . . . . . . . . 51</span></td><td class="lineno" valign="top"></td></tr>
248      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
249      <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>
250      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
251      <tr><td class="lineno" valign="top"></td><td class="left">   This document defines HTTP/1.1 request and response semantics.  Each</td><td> </td><td class="right">   This document defines HTTP/1.1 request and response semantics.  Each</td><td class="lineno" valign="top"></td></tr>
252      <tr><td class="lineno" valign="top"></td><td class="left">   HTTP message, as defined in [Part1], is in the form of either a</td><td> </td><td class="right">   HTTP message, as defined in [Part1], is in the form of either a</td><td class="lineno" valign="top"></td></tr>
253      <tr><td class="lineno" valign="top"></td><td class="left">   request or a response.  An HTTP server listens on a connection for</td><td> </td><td class="right">   request or a response.  An HTTP server listens on a connection for</td><td class="lineno" valign="top"></td></tr>
254      <tr><td class="lineno" valign="top"></td><td class="left">   HTTP requests and responds to each request, in the order received on</td><td> </td><td class="right">   HTTP requests and responds to each request, in the order received on</td><td class="lineno" valign="top"></td></tr>
255      <tr><td class="lineno" valign="top"></td><td class="left">   that connection, with one or more HTTP response messages.  This</td><td> </td><td class="right">   that connection, with one or more HTTP response messages.  This</td><td class="lineno" valign="top"></td></tr>
256      <tr><td class="lineno" valign="top"></td><td class="left">   document defines the commonly agreed upon semantics of the HTTP</td><td> </td><td class="right">   document defines the commonly agreed upon semantics of the HTTP</td><td class="lineno" valign="top"></td></tr>
257      <tr><td class="lineno" valign="top"></td><td class="left">   uniform interface, the intentions defined by each request method, and</td><td> </td><td class="right">   uniform interface, the intentions defined by each request method, and</td><td class="lineno" valign="top"></td></tr>
258      <tr><td class="lineno"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno"></td></tr>
259      <tr bgcolor="gray" ><td></td><th><a name="part-l4" /><small>skipping to change at</small><em> page 8, line 11</em></th><th> </th><th><a name="part-r4" /><small>skipping to change at</small><em> page 8, line 11</em></th><td></td></tr>
260      <tr><td class="lineno" valign="top"></td><td class="left">     Proxy-Authorization =</td><td> </td><td class="right">     Proxy-Authorization =</td><td class="lineno" valign="top"></td></tr>
261      <tr><td class="lineno" valign="top"></td><td class="left">                &lt;Proxy-Authorization, defined in [Part7], Section 4.3&gt;</td><td> </td><td class="right">                &lt;Proxy-Authorization, defined in [Part7], Section 4.3&gt;</td><td class="lineno" valign="top"></td></tr>
262      <tr><td class="lineno" valign="top"></td><td class="left">     WWW-Authenticate =</td><td> </td><td class="right">     WWW-Authenticate =</td><td class="lineno" valign="top"></td></tr>
263      <tr><td class="lineno" valign="top"></td><td class="left">                &lt;WWW-Authenticate, defined in [Part7], Section 4.4&gt;</td><td> </td><td class="right">                &lt;WWW-Authenticate, defined in [Part7], Section 4.4&gt;</td><td class="lineno" valign="top"></td></tr>
264      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
265      <tr><td class="lineno" valign="top"></td><td class="left">3.  Method</td><td> </td><td class="right">3.  Method</td><td class="lineno" valign="top"></td></tr>
266      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
267      <tr><td class="lineno" valign="top"></td><td class="left">   The Method token indicates the method to be performed on the resource</td><td> </td><td class="right">   The Method token indicates the method to be performed on the resource</td><td class="lineno" valign="top"></td></tr>
268      <tr><td class="lineno" valign="top"></td><td class="left">   identified by the Request-URI.  The method is case-sensitive.</td><td> </td><td class="right">   identified by the Request-URI.  The method is case-sensitive.</td><td class="lineno" valign="top"></td></tr>
269      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
270      <tr><td><a name="diff0025" /></td></tr>
271      <tr><td class="lineno" valign="top"></td><td class="lblock">     Method         = <span class="delete">"OPTIONS"                ;</span> Section 8.2</td><td> </td><td class="rblock">     Method         = <span class="insert">%x4F.50.54.49.4F.4E.53   ; "OPTIONS",</span> Section 8.2</td><td class="lineno" valign="top"></td></tr>
272      <tr><td class="lineno" valign="top"></td><td class="lblock">                    | <span class="delete">"GET"                    ;</span> Section 8.3</td><td> </td><td class="rblock">                    | <span class="insert">%x47.45.54               ; "GET",</span> Section 8.3</td><td class="lineno" valign="top"></td></tr>
273      <tr><td class="lineno" valign="top"></td><td class="lblock">                    | <span class="delete">"HEAD"                   ;</span> Section 8.4</td><td> </td><td class="rblock">                    | <span class="insert">%x48.45.41.44            ; "HEAD",</span> Section 8.4</td><td class="lineno" valign="top"></td></tr>
274      <tr><td class="lineno" valign="top"></td><td class="lblock">                    | <span class="delete">"POST"                   ;</span> Section 8.5</td><td> </td><td class="rblock">                    | <span class="insert">%x50.4F.53.54            ; "POST",</span> Section 8.5</td><td class="lineno" valign="top"></td></tr>
275      <tr><td class="lineno" valign="top"></td><td class="lblock">                    | <span class="delete">"PUT"                    ;</span> Section 8.6</td><td> </td><td class="rblock">                    | <span class="insert">%x50.55.54               ; "PUT",</span> Section 8.6</td><td class="lineno" valign="top"></td></tr>
276      <tr><td class="lineno" valign="top"></td><td class="lblock">                    | <span class="delete">"DELETE"                 ;</span> Section 8.7</td><td> </td><td class="rblock">                    | <span class="insert">%x44.45.4C.45.54.45      ; "DELETE",</span> Section 8.7</td><td class="lineno" valign="top"></td></tr>
277      <tr><td class="lineno" valign="top"></td><td class="lblock">                    | <span class="delete">"TRACE"                  ;</span> Section 8.8</td><td> </td><td class="rblock">                    | <span class="insert">%x54.52.41.43.45         ; "TRACE",</span> Section 8.8</td><td class="lineno" valign="top"></td></tr>
278      <tr><td class="lineno" valign="top"></td><td class="lblock">                    | <span class="delete">"CONNECT"                ;</span> Section 8.9</td><td> </td><td class="rblock">                    | <span class="insert">%x43.4F.4E.4E.45.43.54   ; "CONNECT",</span> Section 8.9</td><td class="lineno" valign="top"></td></tr>
279      <tr><td class="lineno" valign="top"></td><td class="left">                    | extension-method</td><td> </td><td class="right">                    | extension-method</td><td class="lineno" valign="top"></td></tr>
280      <tr><td class="lineno" valign="top"></td><td class="left">     extension-method = token</td><td> </td><td class="right">     extension-method = token</td><td class="lineno" valign="top"></td></tr>
281      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
282      <tr><td class="lineno" valign="top"></td><td class="left">   The list of methods allowed by a resource can be specified in an</td><td> </td><td class="right">   The list of methods allowed by a resource can be specified in an</td><td class="lineno" valign="top"></td></tr>
283      <tr><td class="lineno" valign="top"></td><td class="left">   Allow header field (Section 10.1).  The return code of the response</td><td> </td><td class="right">   Allow header field (Section 10.1).  The return code of the response</td><td class="lineno" valign="top"></td></tr>
284      <tr><td class="lineno" valign="top"></td><td class="left">   always notifies the client whether a method is currently allowed on a</td><td> </td><td class="right">   always notifies the client whether a method is currently allowed on a</td><td class="lineno" valign="top"></td></tr>
285      <tr><td class="lineno" valign="top"></td><td class="left">   resource, since the set of allowed methods can change dynamically.</td><td> </td><td class="right">   resource, since the set of allowed methods can change dynamically.</td><td class="lineno" valign="top"></td></tr>
286      <tr><td class="lineno" valign="top"></td><td class="left">   An origin server SHOULD return the status code 405 (Method Not</td><td> </td><td class="right">   An origin server SHOULD return the status code 405 (Method Not</td><td class="lineno" valign="top"></td></tr>
287      <tr><td class="lineno" valign="top"></td><td class="left">   Allowed) if the method is known by the origin server but not allowed</td><td> </td><td class="right">   Allowed) if the method is known by the origin server but not allowed</td><td class="lineno" valign="top"></td></tr>
288      <tr><td class="lineno" valign="top"></td><td class="left">   for the requested resource, and 501 (Not Implemented) if the method</td><td> </td><td class="right">   for the requested resource, and 501 (Not Implemented) if the method</td><td class="lineno" valign="top"></td></tr>
289      <tr><td class="lineno"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno"></td></tr>
290      <tr bgcolor="gray" ><td></td><th><a name="part-l5" /><small>skipping to change at</small><em> page 11, line 16</em></th><th> </th><th><a name="part-r5" /><small>skipping to change at</small><em> page 11, line 16</em></th><td></td></tr>
291      <tr><td class="lineno" valign="top"></td><td class="left">   digit, and treat any unrecognized response as being equivalent to the</td><td> </td><td class="right">   digit, and treat any unrecognized response as being equivalent to the</td><td class="lineno" valign="top"></td></tr>
292      <tr><td class="lineno" valign="top"></td><td class="left">   x00 status code of that class, with the exception that an</td><td> </td><td class="right">   x00 status code of that class, with the exception that an</td><td class="lineno" valign="top"></td></tr>
293      <tr><td class="lineno" valign="top"></td><td class="left">   unrecognized response MUST NOT be cached.  For example, if an</td><td> </td><td class="right">   unrecognized response MUST NOT be cached.  For example, if an</td><td class="lineno" valign="top"></td></tr>
294      <tr><td class="lineno" valign="top"></td><td class="left">   unrecognized status code of 431 is received by the client, it can</td><td> </td><td class="right">   unrecognized status code of 431 is received by the client, it can</td><td class="lineno" valign="top"></td></tr>
295      <tr><td class="lineno" valign="top"></td><td class="left">   safely assume that there was something wrong with its request and</td><td> </td><td class="right">   safely assume that there was something wrong with its request and</td><td class="lineno" valign="top"></td></tr>
296      <tr><td class="lineno" valign="top"></td><td class="left">   treat the response as if it had received a 400 status code.  In such</td><td> </td><td class="right">   treat the response as if it had received a 400 status code.  In such</td><td class="lineno" valign="top"></td></tr>
297      <tr><td class="lineno" valign="top"></td><td class="left">   cases, user agents SHOULD present to the user the entity returned</td><td> </td><td class="right">   cases, user agents SHOULD present to the user the entity returned</td><td class="lineno" valign="top"></td></tr>
298      <tr><td class="lineno" valign="top"></td><td class="left">   with the response, since that entity is likely to include human-</td><td> </td><td class="right">   with the response, since that entity is likely to include human-</td><td class="lineno" valign="top"></td></tr>
299      <tr><td class="lineno" valign="top"></td><td class="left">   readable information which will explain the unusual status.</td><td> </td><td class="right">   readable information which will explain the unusual status.</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><a name="diff0026" /></td></tr>
302      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">5.1.  Status Code Registry</span></td><td class="lineno" valign="top"></td></tr>
303      <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>
304      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">   The HTTP Status Code Registry defines the name space for the Status-</span></td><td class="lineno" valign="top"></td></tr>
305      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">   Code token in the Status line of an HTTP response.</span></td><td class="lineno" valign="top"></td></tr>
306      <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>
307      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">   Values to be added to this name space are subject to IETF review</span></td><td class="lineno" valign="top"></td></tr>
308      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">   ([RFC5226], Section 4.1).  Any document registering new status codes</span></td><td class="lineno" valign="top"></td></tr>
309      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">   should be traceable through statuses of either 'Obsoletes' or</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">   'Updates' to this document.</span></td><td class="lineno" valign="top"></td></tr>
311      <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>
312      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">   The registry itself is maintained at</span></td><td class="lineno" valign="top"></td></tr>
313      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">   &lt;http://www.iana.org/assignments/http-status-codes&gt;.</span></td><td class="lineno" valign="top"></td></tr>
314      <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>
315      <tr><td class="lineno" valign="top"></td><td class="left">6.  Response Header Fields</td><td> </td><td class="right">6.  Response Header Fields</td><td class="lineno" valign="top"></td></tr>
316      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
317      <tr><td class="lineno" valign="top"></td><td class="left">   The response-header fields allow the server to pass additional</td><td> </td><td class="right">   The response-header fields allow the server to pass additional</td><td class="lineno" valign="top"></td></tr>
318      <tr><td class="lineno" valign="top"></td><td class="left">   information about the response which cannot be placed in the Status-</td><td> </td><td class="right">   information about the response which cannot be placed in the Status-</td><td class="lineno" valign="top"></td></tr>
319      <tr><td class="lineno" valign="top"></td><td class="left">   Line.  These header fields give information about the server and</td><td> </td><td class="right">   Line.  These header fields give information about the server and</td><td class="lineno" valign="top"></td></tr>
320      <tr><td class="lineno" valign="top"></td><td class="left">   about further access to the resource identified by the Request-URI.</td><td> </td><td class="right">   about further access to the resource identified by the Request-URI.</td><td class="lineno" valign="top"></td></tr>
321      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
322      <tr><td class="lineno" valign="top"></td><td class="left">     response-header = Accept-Ranges           ; [Part5], Section 6.1</td><td> </td><td class="right">     response-header = Accept-Ranges           ; [Part5], Section 6.1</td><td class="lineno" valign="top"></td></tr>
323      <tr><td class="lineno" valign="top"></td><td class="left">                     | Age                     ; [Part6], Section 16.1</td><td> </td><td class="right">                     | Age                     ; [Part6], Section 16.1</td><td class="lineno" valign="top"></td></tr>
324      <tr><td><a name="diff0027" /></td></tr>
325      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">                     | Allow                   ; Section 10.1</span></td><td class="lineno" valign="top"></td></tr>
326      <tr><td class="lineno" valign="top"></td><td class="left">                     | ETag                    ; [Part4], Section 7.1</td><td> </td><td class="right">                     | ETag                    ; [Part4], Section 7.1</td><td class="lineno" valign="top"></td></tr>
327      <tr><td class="lineno" valign="top"></td><td class="left">                     | Location                ; Section 10.4</td><td> </td><td class="right">                     | Location                ; Section 10.4</td><td class="lineno" valign="top"></td></tr>
328      <tr><td class="lineno" valign="top"></td><td class="left">                     | Proxy-Authenticate      ; [Part7], Section 4.2</td><td> </td><td class="right">                     | Proxy-Authenticate      ; [Part7], Section 4.2</td><td class="lineno" valign="top"></td></tr>
329      <tr><td class="lineno" valign="top"></td><td class="left">                     | Retry-After             ; Section 10.7</td><td> </td><td class="right">                     | Retry-After             ; Section 10.7</td><td class="lineno" valign="top"></td></tr>
330      <tr><td class="lineno" valign="top"></td><td class="left">                     | Server                  ; Section 10.8</td><td> </td><td class="right">                     | Server                  ; Section 10.8</td><td class="lineno" valign="top"></td></tr>
331      <tr><td class="lineno" valign="top"></td><td class="left">                     | Vary                    ; [Part6], Section 16.5</td><td> </td><td class="right">                     | Vary                    ; [Part6], Section 16.5</td><td class="lineno" valign="top"></td></tr>
332      <tr><td class="lineno" valign="top"></td><td class="left">                     | WWW-Authenticate        ; [Part7], Section 4.4</td><td> </td><td class="right">                     | WWW-Authenticate        ; [Part7], Section 4.4</td><td class="lineno" valign="top"></td></tr>
333      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
334      <tr><td class="lineno" valign="top"></td><td class="left">   Response-header field names can be extended reliably only in</td><td> </td><td class="right">   Response-header field names can be extended reliably only in</td><td class="lineno" valign="top"></td></tr>
335      <tr><td class="lineno" valign="top"></td><td class="left">   combination with a change in the protocol version.  However, new or</td><td> </td><td class="right">   combination with a change in the protocol version.  However, new or</td><td class="lineno" valign="top"></td></tr>
336      <tr><td class="lineno"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno"></td></tr>
337      <tr bgcolor="gray" ><td></td><th><a name="part-l6" /><small>skipping to change at</small><em> page 16, line 7</em></th><th> </th><th><a name="part-r6" /><small>skipping to change at</small><em> page 16, line 20</em></th><td></td></tr>
338      <tr><td class="lineno" valign="top"></td><td class="left">   status of the request and refers to the new resource, and a Location</td><td> </td><td class="right">   status of the request and refers to the new resource, and a Location</td><td class="lineno" valign="top"></td></tr>
339      <tr><td class="lineno" valign="top"></td><td class="left">   header (see Section 10.4).</td><td> </td><td class="right">   header (see Section 10.4).</td><td class="lineno" valign="top"></td></tr>
340      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
341      <tr><td class="lineno" valign="top"></td><td class="left">   Responses to this method are not cacheable, unless the response</td><td> </td><td class="right">   Responses to this method are not cacheable, unless the response</td><td class="lineno" valign="top"></td></tr>
342      <tr><td class="lineno" valign="top"></td><td class="left">   includes appropriate Cache-Control or Expires header fields.</td><td> </td><td class="right">   includes appropriate Cache-Control or Expires header fields.</td><td class="lineno" valign="top"></td></tr>
343      <tr><td class="lineno" valign="top"></td><td class="left">   However, the 303 (See Other) response can be used to direct the user</td><td> </td><td class="right">   However, the 303 (See Other) response can be used to direct the user</td><td class="lineno" valign="top"></td></tr>
344      <tr><td class="lineno" valign="top"></td><td class="left">   agent to retrieve a cacheable resource.</td><td> </td><td class="right">   agent to retrieve a cacheable resource.</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">8.6.  PUT</td><td> </td><td class="right">8.6.  PUT</td><td class="lineno" valign="top"></td></tr>
347      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
348      <tr><td><a name="diff0028" /></td></tr>
349      <tr><td class="lineno" valign="top"></td><td class="lblock">   The PUT method requests that the enclosed entity be stored <span class="delete">under</span> the</td><td> </td><td class="rblock">   The PUT method requests that the enclosed entity be stored <span class="insert">at</span> the</td><td class="lineno" valign="top"></td></tr>
350      <tr><td class="lineno" valign="top"></td><td class="left">   supplied Request-URI.  If the Request-URI refers to an already</td><td> </td><td class="right">   supplied Request-URI.  If the Request-URI refers to an already</td><td class="lineno" valign="top"></td></tr>
351      <tr><td class="lineno" valign="top"></td><td class="left">   existing resource, the enclosed entity SHOULD be considered as a</td><td> </td><td class="right">   existing resource, the enclosed entity SHOULD be considered as a</td><td class="lineno" valign="top"></td></tr>
352      <tr><td class="lineno" valign="top"></td><td class="left">   modified version of the one residing on the origin server.  If the</td><td> </td><td class="right">   modified version of the one residing on the origin server.  If the</td><td class="lineno" valign="top"></td></tr>
353      <tr><td class="lineno" valign="top"></td><td class="left">   Request-URI does not point to an existing resource, and that URI is</td><td> </td><td class="right">   Request-URI does not point to an existing resource, and that URI is</td><td class="lineno" valign="top"></td></tr>
354      <tr><td class="lineno" valign="top"></td><td class="left">   capable of being defined as a new resource by the requesting user</td><td> </td><td class="right">   capable of being defined as a new resource by the requesting user</td><td class="lineno" valign="top"></td></tr>
355      <tr><td class="lineno" valign="top"></td><td class="left">   agent, the origin server can create the resource with that URI.  If a</td><td> </td><td class="right">   agent, the origin server can create the resource with that URI.  If a</td><td class="lineno" valign="top"></td></tr>
356      <tr><td class="lineno" valign="top"></td><td class="left">   new resource is created at the Request-URI, the origin server MUST</td><td> </td><td class="right">   new resource is created at the Request-URI, the origin server MUST</td><td class="lineno" valign="top"></td></tr>
357      <tr><td class="lineno" valign="top"></td><td class="left">   inform the user agent via the 201 (Created) response.  If an existing</td><td> </td><td class="right">   inform the user agent via the 201 (Created) response.  If an existing</td><td class="lineno" valign="top"></td></tr>
358      <tr><td class="lineno" valign="top"></td><td class="left">   resource is modified, either the 200 (OK) or 204 (No Content)</td><td> </td><td class="right">   resource is modified, either the 200 (OK) or 204 (No Content)</td><td class="lineno" valign="top"></td></tr>
359      <tr><td class="lineno" valign="top"></td><td class="left">   response codes SHOULD be sent to indicate successful completion of</td><td> </td><td class="right">   response codes SHOULD be sent to indicate successful completion of</td><td class="lineno" valign="top"></td></tr>
360      <tr><td class="lineno"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno"></td></tr>
361      <tr bgcolor="gray" ><td></td><th><a name="part-l7" /><small>skipping to change at</small><em> page 17, line 47</em></th><th> </th><th><a name="part-r7" /><small>skipping to change at</small><em> page 18, line 13</em></th><td></td></tr>
362      <tr><td class="lineno" valign="top"></td><td class="left">   TRACE allows the client to see what is being received at the other</td><td> </td><td class="right">   TRACE allows the client to see what is being received at the other</td><td class="lineno" valign="top"></td></tr>
363      <tr><td class="lineno" valign="top"></td><td class="left">   end of the request chain and use that data for testing or diagnostic</td><td> </td><td class="right">   end of the request chain and use that data for testing or diagnostic</td><td class="lineno" valign="top"></td></tr>
364      <tr><td class="lineno" valign="top"></td><td class="left">   information.  The value of the Via header field (Section 8.9 of</td><td> </td><td class="right">   information.  The value of the Via header field (Section 8.9 of</td><td class="lineno" valign="top"></td></tr>
365      <tr><td class="lineno" valign="top"></td><td class="left">   [Part1]) is of particular interest, since it acts as a trace of the</td><td> </td><td class="right">   [Part1]) is of particular interest, since it acts as a trace of the</td><td class="lineno" valign="top"></td></tr>
366      <tr><td class="lineno" valign="top"></td><td class="left">   request chain.  Use of the Max-Forwards header field allows the</td><td> </td><td class="right">   request chain.  Use of the Max-Forwards header field allows the</td><td class="lineno" valign="top"></td></tr>
367      <tr><td class="lineno" valign="top"></td><td class="left">   client to limit the length of the request chain, which is useful for</td><td> </td><td class="right">   client to limit the length of the request chain, which is useful for</td><td class="lineno" valign="top"></td></tr>
368      <tr><td class="lineno" valign="top"></td><td class="left">   testing a chain of proxies forwarding messages in an infinite loop.</td><td> </td><td class="right">   testing a chain of proxies forwarding messages in an infinite loop.</td><td class="lineno" valign="top"></td></tr>
369      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
370      <tr><td class="lineno" valign="top"></td><td class="left">   If the request is valid, the response SHOULD contain the entire</td><td> </td><td class="right">   If the request is valid, the response SHOULD contain the entire</td><td class="lineno" valign="top"></td></tr>
371      <tr><td class="lineno" valign="top"></td><td class="left">   request message in the entity-body, with a Content-Type of "message/</td><td> </td><td class="right">   request message in the entity-body, with a Content-Type of "message/</td><td class="lineno" valign="top"></td></tr>
372      <tr><td><a name="diff0029" /></td></tr>
373      <tr><td class="lineno" valign="top"></td><td class="lblock">   http"<span class="delete">.  Responses to this method MUST NOT be cached.</span></td><td> </td><td class="rblock">   http"<span class="insert"> (see Appendix A.1 of [Part1]).  Responses to this method MUST</span></td><td class="lineno" valign="top"></td></tr>
374      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">   NOT be cached.</span></td><td class="lineno" valign="top"></td></tr>
375      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
376      <tr><td class="lineno" valign="top"></td><td class="left">8.9.  CONNECT</td><td> </td><td class="right">8.9.  CONNECT</td><td class="lineno" valign="top"></td></tr>
377      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
378      <tr><td class="lineno" valign="top"></td><td class="left">   This specification reserves the method name CONNECT for use with a</td><td> </td><td class="right">   This specification reserves the method name CONNECT for use with a</td><td class="lineno" valign="top"></td></tr>
379      <tr><td class="lineno" valign="top"></td><td class="left">   proxy that can dynamically switch to being a tunnel (e.g.  SSL</td><td> </td><td class="right">   proxy that can dynamically switch to being a tunnel (e.g.  SSL</td><td class="lineno" valign="top"></td></tr>
380      <tr><td class="lineno" valign="top"></td><td class="left">   tunneling [Luo1998]).</td><td> </td><td class="right">   tunneling [Luo1998]).</td><td class="lineno" valign="top"></td></tr>
381      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
382      <tr><td class="lineno" valign="top"></td><td class="left">9.  Status Code Definitions</td><td> </td><td class="right">9.  Status Code Definitions</td><td class="lineno" valign="top"></td></tr>
383      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
384      <tr><td class="lineno" valign="top"></td><td class="left">   Each Status-Code is described below, including a description of which</td><td> </td><td class="right">   Each Status-Code is described below, including a description of which</td><td class="lineno" valign="top"></td></tr>
385      <tr><td class="lineno"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno"></td></tr>
386      <tr bgcolor="gray" ><td></td><th><a name="part-l8" /><small>skipping to change at</small><em> page 23, line 17</em></th><th> </th><th><a name="part-r8" /><small>skipping to change at</small><em> page 23, line 36</em></th><td></td></tr>
387      <tr><td class="lineno" valign="top"></td><td class="left">      allowed to change the method on the redirected request.  However,</td><td> </td><td class="right">      allowed to change the method on the redirected request.  However,</td><td class="lineno" valign="top"></td></tr>
388      <tr><td class="lineno" valign="top"></td><td class="left">      most existing user agent implementations treat 302 as if it were a</td><td> </td><td class="right">      most existing user agent implementations treat 302 as if it were a</td><td class="lineno" valign="top"></td></tr>
389      <tr><td class="lineno" valign="top"></td><td class="left">      303 response, performing a GET on the Location field-value</td><td> </td><td class="right">      303 response, performing a GET on the Location field-value</td><td class="lineno" valign="top"></td></tr>
390      <tr><td class="lineno" valign="top"></td><td class="left">      regardless of the original request method.  The status codes 303</td><td> </td><td class="right">      regardless of the original request method.  The status codes 303</td><td class="lineno" valign="top"></td></tr>
391      <tr><td class="lineno" valign="top"></td><td class="left">      and 307 have been added for servers that wish to make</td><td> </td><td class="right">      and 307 have been added for servers that wish to make</td><td class="lineno" valign="top"></td></tr>
392      <tr><td class="lineno" valign="top"></td><td class="left">      unambiguously clear which kind of reaction is expected of the</td><td> </td><td class="right">      unambiguously clear which kind of reaction is expected of the</td><td class="lineno" valign="top"></td></tr>
393      <tr><td class="lineno" valign="top"></td><td class="left">      client.</td><td> </td><td class="right">      client.</td><td class="lineno" valign="top"></td></tr>
394      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
395      <tr><td class="lineno" valign="top"></td><td class="left">9.3.4.  303 See Other</td><td> </td><td class="right">9.3.4.  303 See Other</td><td class="lineno" valign="top"></td></tr>
396      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
397      <tr><td><a name="diff0030" /></td></tr>
398      <tr><td class="lineno" valign="top"></td><td class="lblock">   The <span class="delete">response to the request can be found under a different URI an</span>d</td><td> </td><td class="rblock">   The <span class="insert">server directs the user agent to a different resource, indicate</span>d</td><td class="lineno" valign="top"></td></tr>
399      <tr><td class="lineno" valign="top"></td><td class="lblock">   <span class="delete">SHOULD be retrieved using a GET method on that resource.  This method</span></td><td> </td><td class="rblock">   <span class="insert">by a URI in the Location header field, that provides an indirect</span></td><td class="lineno" valign="top"></td></tr>
400      <tr><td class="lineno" valign="top"></td><td class="lblock">   <span class="delete">exists primarily to allow the output of a POST-activated script to</span></td><td> </td><td class="rblock">   <span class="insert">response to the original request.  The user agent MAY perform a GET</span></td><td class="lineno" valign="top"></td></tr>
401      <tr><td class="lineno" valign="top"></td><td class="lblock">   re<span class="delete">direct the user agent to a selected resource.  The new URI is not</span> a</td><td> </td><td class="rblock">   re<span class="insert">quest on the URI in the Location field in order to obtain</span> a</td><td class="lineno" valign="top"></td></tr>
402      <tr><td class="lineno" valign="top"></td><td class="lblock">   <span class="delete">substitute reference for the originally requested resource.  The 303</span></td><td> </td><td class="rblock">   <span class="insert">representation corresponding to the response, be redirected again, or</span></td><td class="lineno" valign="top"></td></tr>
403      <tr><td class="lineno" valign="top"></td><td class="lblock">   <span class="delete">response MUST NOT be cached, but the response to the second</span></td><td> </td><td class="rblock">   <span class="insert">end with an error status.  The Location URI is not a substitute</span></td><td class="lineno" valign="top"></td></tr>
404      <tr><td class="lineno" valign="top"></td><td class="lblock">   <span class="delete">(redirected) request might be cacheabl</span>e.</td><td> </td><td class="rblock">   <span class="insert">reference for the originally requested resourc</span>e.</td><td class="lineno" valign="top"></td></tr>
405      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
406      <tr><td><a name="diff0031" /></td></tr>
407      <tr><td class="lineno" valign="top"></td><td class="lblock">   The <span class="delete">different URI SHOULD be given by the Location field in the</span></td><td> </td><td class="rblock">   The <span class="insert">303 status is generally applicable to any HTTP method.  It is</span></td><td class="lineno" valign="top"></td></tr>
408      <tr><td class="lineno" valign="top"></td><td class="lblock">   <span class="delete">response.  Unless the request method was HEAD, the entity of</span> the</td><td> </td><td class="rblock">   <span class="insert">primarily used to allow the output of a POST action to redirect</span> the</td><td class="lineno" valign="top"></td></tr>
409      <tr><td class="lineno" valign="top"></td><td class="lblock">   <span class="delete">response SHOULD contain a short hypertext note with a hyperlink to</span></td><td> </td><td class="rblock">   <span class="insert">user agent to a selected resource, since doing so provides the</span></td><td class="lineno" valign="top"></td></tr>
410      <tr><td class="lineno" valign="top"></td><td class="lblock">   <span class="delete">the new URI(s).</span></td><td> </td><td class="rblock">   <span class="insert">information corresponding to the POST response in a form that can be</span></td><td class="lineno" valign="top"></td></tr>
411      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">   separately identified, bookmarked, and cached independent of the</span></td><td class="lineno" valign="top"></td></tr>
412      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">   original request.</span></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="diff0032" /></td></tr>
415      <tr><td class="lineno" valign="top"></td><td class="lblock">   <span class="delete">   Note: Many pre-HTTP/1.1 user agents do not understand the 303</span></td><td> </td><td class="rblock">   <span class="insert">A 303 response to a GET request indicates that the requested resource</span></td><td class="lineno" valign="top"></td></tr>
416      <tr><td class="lineno" valign="top"></td><td class="lblock">   <span class="delete">   status.  When interoperability with such clients is a concern, the</span></td><td> </td><td class="rblock">   <span class="insert">does not have a representation of its own that can be transferred by</span></td><td class="lineno" valign="top"></td></tr>
417      <tr><td class="lineno" valign="top"></td><td class="lblock">   <span class="delete">   302 status code may be used instead, since most user agents react</span></td><td> </td><td class="rblock">   <span class="insert">the server over HTTP.  The Location URI indicates a resource that is</span></td><td class="lineno" valign="top"></td></tr>
418      <tr><td class="lineno" valign="top"></td><td class="lblock">   <span class="delete">   to a 302 response as described here for 303.</span></td><td> </td><td class="rblock">   <span class="insert">descriptive of the requested resource such that the follow-on</span></td><td class="lineno" valign="top"></td></tr>
419      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">   representation may be useful without implying that it adequately</span></td><td class="lineno" valign="top"></td></tr>
420      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">   represents the previously requested resource.  Note that answers to</span></td><td class="lineno" valign="top"></td></tr>
421      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">   the questions of what can be represented, what representations are</span></td><td class="lineno" valign="top"></td></tr>
422      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">   adequate, and what might be a useful description are outside the</span></td><td class="lineno" valign="top"></td></tr>
423      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">   scope of HTTP and thus entirely determined by the resource owner(s).</span></td><td class="lineno" valign="top"></td></tr>
424      <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>
425      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">   A 303 response SHOULD NOT be cached unless it is indicated as</span></td><td class="lineno" valign="top"></td></tr>
426      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">   cacheable by Cache-Control or Expires header fields.  Except for</span></td><td class="lineno" valign="top"></td></tr>
427      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">   responses to a HEAD request, the entity of a 303 response SHOULD</span></td><td class="lineno" valign="top"></td></tr>
428      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">   contain a short hypertext note with a hyperlink to the Location URI.</span></td><td class="lineno" valign="top"></td></tr>
429      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
430      <tr><td class="lineno" valign="top"></td><td class="left">9.3.5.  304 Not Modified</td><td> </td><td class="right">9.3.5.  304 Not Modified</td><td class="lineno" valign="top"></td></tr>
431      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
432      <tr><td class="lineno" valign="top"></td><td class="left">   The response to the request has not been modified since the</td><td> </td><td class="right">   The response to the request has not been modified since the</td><td class="lineno" valign="top"></td></tr>
433      <tr><td class="lineno" valign="top"></td><td class="left">   conditions indicated by the client's conditional GET request, as</td><td> </td><td class="right">   conditions indicated by the client's conditional GET request, as</td><td class="lineno" valign="top"></td></tr>
434      <tr><td class="lineno" valign="top"></td><td class="left">   defined in [Part4].</td><td> </td><td class="right">   defined in [Part4].</td><td class="lineno" valign="top"></td></tr>
435      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
436      <tr><td class="lineno" valign="top"></td><td class="left">9.3.6.  305 Use Proxy</td><td> </td><td class="right">9.3.6.  305 Use Proxy</td><td class="lineno" valign="top"></td></tr>
437      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
438      <tr><td><a name="diff0033" /></td></tr>
439      <tr><td class="lineno" valign="top"></td><td class="lblock">   The <span class="delete">requested resource MUST be accessed through the proxy given by</span></td><td> </td><td class="rblock">   The <span class="insert">305 status was defined in a previous version of this</span></td><td class="lineno" valign="top"></td></tr>
440      <tr><td class="lineno" valign="top"></td><td class="lblock">   <span class="delete">the Location field.  The Location field gives the URI of the proxy</span>.</td><td> </td><td class="rblock">   <span class="insert">specification (see Appendix A.2), and is now deprecated</span>.</td><td class="lineno" valign="top"></td></tr>
441      <tr><td class="lineno" valign="top"></td><td class="lblock"><span class="delete">   The recipient is expected to repeat this single request via the</span></td><td> </td><td class="rblock"></td><td class="lineno" valign="top"></td></tr>
442      <tr><td class="lineno" valign="top"></td><td class="lblock"><span class="delete">   proxy. 305 responses MUST only be generated by origin servers.</span></td><td> </td><td class="rblock"></td><td class="lineno" valign="top"></td></tr>
443      <tr><td class="lineno" valign="top"></td><td class="lblock"><span class="delete">                                                                         </span></td><td> </td><td class="rblock"></td><td class="lineno" valign="top"></td></tr>
444      <tr><td class="lineno" valign="top"></td><td class="lblock"><span class="delete">      Note: [RFC2068] was not clear that 305 was intended to redirect a</span></td><td> </td><td class="rblock"></td><td class="lineno" valign="top"></td></tr>
445      <tr><td class="lineno" valign="top"></td><td class="lblock"><span class="delete">      single request, and to be generated by origin servers only.  Not</span></td><td> </td><td class="rblock"></td><td class="lineno" valign="top"></td></tr>
446      <tr><td class="lineno" valign="top"></td><td class="lblock"><span class="delete">      observing these limitations has significant security consequences.</span></td><td> </td><td class="rblock"></td><td class="lineno" valign="top"></td></tr>
447      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
448      <tr><td class="lineno" valign="top"></td><td class="left">9.3.7.  306 (Unused)</td><td> </td><td class="right">9.3.7.  306 (Unused)</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">   The 306 status code was used in a previous version of the</td><td> </td><td class="right">   The 306 status code was used in a previous version of the</td><td class="lineno" valign="top"></td></tr>
451      <tr><td class="lineno" valign="top"></td><td class="left">   specification, is no longer used, and the code is reserved.</td><td> </td><td class="right">   specification, is no longer used, and the code is reserved.</td><td class="lineno" valign="top"></td></tr>
452      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
453      <tr><td class="lineno" valign="top"></td><td class="left">9.3.8.  307 Temporary Redirect</td><td> </td><td class="right">9.3.8.  307 Temporary Redirect</td><td class="lineno" valign="top"></td></tr>
454      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
455      <tr><td class="lineno" valign="top"></td><td class="left">   The requested resource resides temporarily under a different URI.</td><td> </td><td class="right">   The requested resource resides temporarily under a different URI.</td><td class="lineno" valign="top"></td></tr>
456      <tr><td class="lineno" valign="top"></td><td class="left">   Since the redirection MAY be altered on occasion, the client SHOULD</td><td> </td><td class="right">   Since the redirection MAY be altered on occasion, the client SHOULD</td><td class="lineno" valign="top"></td></tr>
457      <tr><td class="lineno"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno"></td></tr>
458      <tr bgcolor="gray" ><td></td><th><a name="part-l9" /><small>skipping to change at</small><em> page 30, line 16</em></th><th> </th><th><a name="part-r9" /><small>skipping to change at</small><em> page 30, line 36</em></th><td></td></tr>
459      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
460      <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>
461      <tr><td class="lineno" valign="top"></td><td class="left">   fields related to request and response semantics.</td><td> </td><td class="right">   fields related to request and response semantics.</td><td class="lineno" valign="top"></td></tr>
462      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
463      <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>
464      <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>
465      <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>
466      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
467      <tr><td class="lineno" valign="top"></td><td class="left">10.1.  Allow</td><td> </td><td class="right">10.1.  Allow</td><td class="lineno" valign="top"></td></tr>
468      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
469      <tr><td><a name="diff0034" /></td></tr>
470      <tr><td class="lineno" valign="top"></td><td class="lblock">   The Allow <span class="delete">entity-header field lists the set of methods supported by</span></td><td> </td><td class="rblock">   The Allow <span class="insert">response-header field lists the set of methods advertised</span></td><td class="lineno" valign="top"></td></tr>
471      <tr><td class="lineno" valign="top"></td><td class="lblock">   <span class="delete">the resource identified by the Request-URI.  The purpose of this</span></td><td> </td><td class="rblock">   <span class="insert">as supported by the resource identified by the Request-URI.  The</span></td><td class="lineno" valign="top"></td></tr>
472      <tr><td class="lineno" valign="top"></td><td class="lblock">   <span class="delete">field is strictly to inform the recipient of valid methods associate</span>d</td><td> </td><td class="rblock">   <span class="insert">purpose of this field is strictly to inform the recipient of vali</span>d</td><td class="lineno" valign="top"></td></tr>
473      <tr><td class="lineno" valign="top"></td><td class="lblock">   <span class="delete">with the resource.  An Allow header field MUST be present in a 405</span></td><td> </td><td class="rblock">   <span class="insert">methods associated with the resource.  An Allow header field MUST be</span></td><td class="lineno" valign="top"></td></tr>
474      <tr><td class="lineno" valign="top"></td><td class="lblock">   (Method Not Allowed) response.</td><td> </td><td class="rblock">   <span class="insert">present in a 405 </span>(Method Not Allowed) response.</td><td class="lineno" valign="top"></td></tr>
475      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
476      <tr><td class="lineno" valign="top"></td><td class="left">     Allow   = "Allow" ":" #Method</td><td> </td><td class="right">     Allow   = "Allow" ":" #Method</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">   Example of use:</td><td> </td><td class="right">   Example of use:</td><td class="lineno" valign="top"></td></tr>
479      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
480      <tr><td class="lineno" valign="top"></td><td class="left">          Allow: GET, HEAD, PUT</td><td> </td><td class="right">          Allow: GET, HEAD, PUT</td><td class="lineno" valign="top"></td></tr>
481      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
482      <tr><td><a name="diff0035" /></td></tr>
483      <tr><td class="lineno" valign="top"></td><td class="lblock">   Th<span class="delete">is field cannot prevent a client from trying other methods.</span></td><td> </td><td class="rblock">   Th<span class="insert">e actual set of allowed methods is defined by the origin server at</span></td><td class="lineno" valign="top"></td></tr>
484      <tr><td class="lineno" valign="top"></td><td class="lblock">   <span class="delete">However, the indications given by the Allow header field value SHOULD</span></td><td> </td><td class="rblock">   <span class="insert">the time of each request.</span></td><td class="lineno" valign="top"></td></tr>
485      <tr><td class="lineno" valign="top"></td><td class="lblock"><span class="delete">   be followed.  The actual set of allowed methods is defined by the</span></td><td> </td><td class="rblock"></td><td class="lineno" valign="top"></td></tr>
486      <tr><td class="lineno" valign="top"></td><td class="lblock"><span class="delete">   origin server at the time of each request.</span></td><td> </td><td class="rblock"></td><td class="lineno" valign="top"></td></tr>
487      <tr><td class="lineno" valign="top"></td><td class="lblock"><span class="delete">                                                                         </span></td><td> </td><td class="rblock"></td><td class="lineno" valign="top"></td></tr>
488      <tr><td class="lineno" valign="top"></td><td class="lblock"><span class="delete">   The Allow header field MAY be provided with a PUT request to</span></td><td> </td><td class="rblock"></td><td class="lineno" valign="top"></td></tr>
489      <tr><td class="lineno" valign="top"></td><td class="lblock"><span class="delete">   recommend the methods to be supported by the new or modified</span></td><td> </td><td class="rblock"></td><td class="lineno" valign="top"></td></tr>
490      <tr><td class="lineno" valign="top"></td><td class="lblock"><span class="delete">   resource.  The server is not required to support these methods and</span></td><td> </td><td class="rblock"></td><td class="lineno" valign="top"></td></tr>
491      <tr><td class="lineno" valign="top"></td><td class="lblock"><span class="delete">   SHOULD include an Allow header in the response giving the actual</span></td><td> </td><td class="rblock"></td><td class="lineno" valign="top"></td></tr>
492      <tr><td class="lineno" valign="top"></td><td class="lblock"><span class="delete">   supported methods.</span></td><td> </td><td class="rblock"></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" valign="top"></td><td class="left">   A proxy MUST NOT modify the Allow header field even if it does not</td><td> </td><td class="right">   A proxy MUST NOT modify the Allow header field even if it does not</td><td class="lineno" valign="top"></td></tr>
495      <tr><td class="lineno" valign="top"></td><td class="left">   understand all the methods specified, since the user agent might have</td><td> </td><td class="right">   understand all the methods specified, since the user agent might have</td><td class="lineno" valign="top"></td></tr>
496      <tr><td class="lineno" valign="top"></td><td class="left">   other means of communicating with the origin server.</td><td> </td><td class="right">   other means of communicating with the origin server.</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">10.2.  Expect</td><td> </td><td class="right">10.2.  Expect</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">   The Expect request-header field is used to indicate that particular</td><td> </td><td class="right">   The Expect request-header field is used to indicate that particular</td><td class="lineno" valign="top"></td></tr>
501      <tr><td class="lineno" valign="top"></td><td class="left">   server behaviors are required by the client.</td><td> </td><td class="right">   server behaviors are required by the client.</td><td class="lineno" valign="top"></td></tr>
502      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
503      <tr><td class="lineno"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno"></td></tr>
504      <tr bgcolor="gray" ><td></td><th><a name="part-l10" /><small>skipping to change at</small><em> page 32, line 23</em></th><th> </th><th><a name="part-r10" /><small>skipping to change at</small><em> page 32, line 36</em></th><td></td></tr>
505      <tr><td class="lineno" valign="top"></td><td class="left">   used.</td><td> </td><td class="right">   used.</td><td class="lineno" valign="top"></td></tr>
506      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
507      <tr><td class="lineno" valign="top"></td><td class="left">   The client SHOULD NOT send the From header field without the user's</td><td> </td><td class="right">   The client SHOULD NOT send the From header field without the user's</td><td class="lineno" valign="top"></td></tr>
508      <tr><td class="lineno" valign="top"></td><td class="left">   approval, as it might conflict with the user's privacy interests or</td><td> </td><td class="right">   approval, as it might conflict with the user's privacy interests or</td><td class="lineno" valign="top"></td></tr>
509      <tr><td class="lineno" valign="top"></td><td class="left">   their site's security policy.  It is strongly recommended that the</td><td> </td><td class="right">   their site's security policy.  It is strongly recommended that the</td><td class="lineno" valign="top"></td></tr>
510      <tr><td class="lineno" valign="top"></td><td class="left">   user be able to disable, enable, and modify the value of this field</td><td> </td><td class="right">   user be able to disable, enable, and modify the value of this field</td><td class="lineno" valign="top"></td></tr>
511      <tr><td class="lineno" valign="top"></td><td class="left">   at any time prior to a request.</td><td> </td><td class="right">   at any time prior to a request.</td><td class="lineno" valign="top"></td></tr>
512      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
513      <tr><td class="lineno" valign="top"></td><td class="left">10.4.  Location</td><td> </td><td class="right">10.4.  Location</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="diff0036" /></td></tr>
516      <tr><td class="lineno" valign="top"></td><td class="lblock">   The Location response-header field is used <span class="delete">to redirect the recipient</span></td><td> </td><td class="rblock">   The Location response-header field is used <span class="insert">for the identification of</span></td><td class="lineno" valign="top"></td></tr>
517      <tr><td class="lineno" valign="top"></td><td class="lblock">   <span class="delete">to a location other than the Request-URI for completion of the</span></td><td> </td><td class="rblock">   <span class="insert">a new resource or to redirect the recipient to a location other than</span></td><td class="lineno" valign="top"></td></tr>
518      <tr><td class="lineno" valign="top"></td><td class="lblock">   <span class="delete">request or identification of a new resource</span>.  For 201 (Created)</td><td> </td><td class="rblock">   <span class="insert">the Request-URI for completion of the request</span>.  For 201 (Created)</td><td class="lineno" valign="top"></td></tr>
519      <tr><td class="lineno" valign="top"></td><td class="left">   responses, the Location is that of the new resource which was created</td><td> </td><td class="right">   responses, the Location is that of the new resource which was created</td><td class="lineno" valign="top"></td></tr>
520      <tr><td class="lineno" valign="top"></td><td class="left">   by the request.  For 3xx responses, the location SHOULD indicate the</td><td> </td><td class="right">   by the request.  For 3xx responses, the location SHOULD indicate the</td><td class="lineno" valign="top"></td></tr>
521      <tr><td class="lineno" valign="top"></td><td class="left">   server's preferred URI for automatic redirection to the resource.</td><td> </td><td class="right">   server's preferred URI for automatic redirection to the resource.</td><td class="lineno" valign="top"></td></tr>
522      <tr><td class="lineno" valign="top"></td><td class="left">   The field value consists of a single absolute URI.</td><td> </td><td class="right">   The field value consists of a single absolute URI.</td><td class="lineno" valign="top"></td></tr>
523      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
524      <tr><td class="lineno" valign="top"></td><td class="left">     Location       = "Location" ":" absoluteURI [ "#" fragment ]</td><td> </td><td class="right">     Location       = "Location" ":" absoluteURI [ "#" fragment ]</td><td class="lineno" valign="top"></td></tr>
525      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
526      <tr><td class="lineno" valign="top"></td><td class="left">   An example is:</td><td> </td><td class="right">   An example is:</td><td class="lineno" valign="top"></td></tr>
527      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
528      <tr><td class="lineno" valign="top"></td><td class="left">       Location: http://www.example.org/pub/WWW/People.html</td><td> </td><td class="right">       Location: http://www.example.org/pub/WWW/People.html</td><td class="lineno" valign="top"></td></tr>
529      <tr><td class="lineno"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno"></td></tr>
530      <tr bgcolor="gray" ><td></td><th><a name="part-l11" /><small>skipping to change at</small><em> page 35, line 28</em></th><th> </th><th><a name="part-r11" /><small>skipping to change at</small><em> page 35, line 44</em></th><td></td></tr>
531      <tr><td class="lineno" valign="top"></td><td class="left">   significance for identifying the application.</td><td> </td><td class="right">   significance for identifying the application.</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 class="lineno" valign="top"></td><td class="left">     User-Agent     = "User-Agent" ":" 1*( product | comment )</td><td> </td><td class="right">     User-Agent     = "User-Agent" ":" 1*( product | comment )</td><td class="lineno" valign="top"></td></tr>
534      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
535      <tr><td class="lineno" valign="top"></td><td class="left">   Example:</td><td> </td><td class="right">   Example:</td><td class="lineno" valign="top"></td></tr>
536      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
537      <tr><td class="lineno" valign="top"></td><td class="left">       User-Agent: CERN-LineMode/2.15 libwww/2.17b3</td><td> </td><td class="right">       User-Agent: CERN-LineMode/2.15 libwww/2.17b3</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 class="lineno" valign="top"></td><td class="left">11.  IANA Considerations</td><td> </td><td class="right">11.  IANA Considerations</td><td class="lineno" valign="top"></td></tr>
540      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
541      <tr><td><a name="diff0037" /></td></tr>
542      <tr><td class="lineno" valign="top"></td><td class="lblock"><span class="delete">   [[anchor1: TBD.]]</span></td><td> </td><td class="rblock"><span class="insert">11.1.  Status Code Registry</span></td><td class="lineno" valign="top"></td></tr>
543      <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>
544      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">   The registration procedure for HTTP Status Codes -- previously</span></td><td class="lineno" valign="top"></td></tr>
545      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">   defined in Section 7.1 of [RFC2817] -- is now defined by Section 5.1</span></td><td class="lineno" valign="top"></td></tr>
546      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">   of this document.</span></td><td class="lineno" valign="top"></td></tr>
547      <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>
548      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">   The HTTP Status Code Registry located at</span></td><td class="lineno" valign="top"></td></tr>
549      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">   &lt;http://www.iana.org/assignments/http-status-codes&gt; should be updated</span></td><td class="lineno" valign="top"></td></tr>
550      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">   with the registrations below:</span></td><td class="lineno" valign="top"></td></tr>
551      <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>
552      <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>
553      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">       | Value | Description                     | Reference      |</span></td><td class="lineno" valign="top"></td></tr>
554      <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>
555      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">       | 100   | Continue                        | Section 9.1.1  |</span></td><td class="lineno" valign="top"></td></tr>
556      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">       | 101   | Switching Protocols             | Section 9.1.2  |</span></td><td class="lineno" valign="top"></td></tr>
557      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">       | 200   | OK                              | Section 9.2.1  |</span></td><td class="lineno" valign="top"></td></tr>
558      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">       | 201   | Created                         | Section 9.2.2  |</span></td><td class="lineno" valign="top"></td></tr>
559      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">       | 202   | Accepted                        | Section 9.2.3  |</span></td><td class="lineno" valign="top"></td></tr>
560      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">       | 203   | Non-Authoritative Information   | Section 9.2.4  |</span></td><td class="lineno" valign="top"></td></tr>
561      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">       | 204   | No Content                      | Section 9.2.5  |</span></td><td class="lineno" valign="top"></td></tr>
562      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">       | 205   | Reset Content                   | Section 9.2.6  |</span></td><td class="lineno" valign="top"></td></tr>
563      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">       | 206   | Partial Content                 | Section 9.2.7  |</span></td><td class="lineno" valign="top"></td></tr>
564      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">       | 300   | Multiple Choices                | Section 9.3.1  |</span></td><td class="lineno" valign="top"></td></tr>
565      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">       | 301   | Moved Permanently               | Section 9.3.2  |</span></td><td class="lineno" valign="top"></td></tr>
566      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">       | 302   | Found                           | Section 9.3.3  |</span></td><td class="lineno" valign="top"></td></tr>
567      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">       | 303   | See Other                       | Section 9.3.4  |</span></td><td class="lineno" valign="top"></td></tr>
568      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">       | 304   | Not Modified                    | Section 9.3.5  |</span></td><td class="lineno" valign="top"></td></tr>
569      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">       | 305   | Use Proxy                       | Section 9.3.6  |</span></td><td class="lineno" valign="top"></td></tr>
570      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">       | 306   | (Unused)                        | Section 9.3.7  |</span></td><td class="lineno" valign="top"></td></tr>
571      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">       | 307   | Temporary Redirect              | Section 9.3.8  |</span></td><td class="lineno" valign="top"></td></tr>
572      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">       | 400   | Bad Request                     | Section 9.4.1  |</span></td><td class="lineno" valign="top"></td></tr>
573      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">       | 401   | Unauthorized                    | Section 9.4.2  |</span></td><td class="lineno" valign="top"></td></tr>
574      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">       | 402   | Payment Required                | Section 9.4.3  |</span></td><td class="lineno" valign="top"></td></tr>
575      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">       | 403   | Forbidden                       | Section 9.4.4  |</span></td><td class="lineno" valign="top"></td></tr>
576      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">       | 404   | Not Found                       | Section 9.4.5  |</span></td><td class="lineno" valign="top"></td></tr>
577      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">       | 405   | Method Not Allowed              | Section 9.4.6  |</span></td><td class="lineno" valign="top"></td></tr>
578      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">       | 406   | Not Acceptable                  | Section 9.4.7  |</span></td><td class="lineno" valign="top"></td></tr>
579      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">       | 407   | Proxy Authentication Required   | Section 9.4.8  |</span></td><td class="lineno" valign="top"></td></tr>
580      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">       | 408   | Request Timeout                 | Section 9.4.9  |</span></td><td class="lineno" valign="top"></td></tr>
581      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">       | 409   | Conflict                        | Section 9.4.10 |</span></td><td class="lineno" valign="top"></td></tr>
582      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">       | 410   | Gone                            | Section 9.4.11 |</span></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">       | 411   | Length Required                 | Section 9.4.12 |</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">       | 412   | Precondition Failed             | Section 9.4.13 |</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">       | 413   | Request Entity Too Large        | Section 9.4.14 |</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">       | 414   | Request-URI Too Long            | Section 9.4.15 |</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">       | 415   | Unsupported Media Type          | Section 9.4.16 |</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">       | 416   | Requested Range Not Satisfiable | Section 9.4.17 |</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">       | 417   | Expectation Failed              | Section 9.4.18 |</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">       | 500   | Internal Server Error           | Section 9.5.1  |</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">       | 501   | Not Implemented                 | Section 9.5.2  |</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">       | 502   | Bad Gateway                     | Section 9.5.3  |</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">       | 503   | Service Unavailable             | Section 9.5.4  |</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">       | 504   | Gateway Timeout                 | Section 9.5.5  |</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">       | 505   | HTTP Version Not Supported      | Section 9.5.6  |</span></td><td class="lineno" valign="top"></td></tr>
596      <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>
597      <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>
598      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">11.2.  Message Header Registration</span></td><td class="lineno" valign="top"></td></tr>
599      <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>
600      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">   The Message Header Registry located at &lt;http://www.iana.org/</span></td><td class="lineno" valign="top"></td></tr>
601      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">   assignments/message-headers/message-header-index.html&gt; should be</span></td><td class="lineno" valign="top"></td></tr>
602      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">   updated with the permanent registrations below (see [RFC3864]):</span></td><td class="lineno" valign="top"></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="lblock"></td><td> </td><td class="rblock"><span class="insert">        +-------------------+----------+----------+--------------+</span></td><td class="lineno" valign="top"></td></tr>
605      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">        | Header Field Name | Protocol | Status   | Reference    |</span></td><td class="lineno" valign="top"></td></tr>
606      <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>
607      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">        | Allow             | http     | standard | Section 10.1 |</span></td><td class="lineno" valign="top"></td></tr>
608      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">        | Expect            | http     | standard | Section 10.2 |</span></td><td class="lineno" valign="top"></td></tr>
609      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">        | From              | http     | standard | Section 10.3 |</span></td><td class="lineno" valign="top"></td></tr>
610      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">        | Location          | http     | standard | Section 10.4 |</span></td><td class="lineno" valign="top"></td></tr>
611      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">        | Max-Forwards      | http     | standard | Section 10.5 |</span></td><td class="lineno" valign="top"></td></tr>
612      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">        | Referer           | http     | standard | Section 10.6 |</span></td><td class="lineno" valign="top"></td></tr>
613      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">        | Retry-After       | http     | standard | Section 10.7 |</span></td><td class="lineno" valign="top"></td></tr>
614      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">        | Server            | http     | standard | Section 10.8 |</span></td><td class="lineno" valign="top"></td></tr>
615      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">        | User-Agent        | http     | standard | Section 10.9 |</span></td><td class="lineno" valign="top"></td></tr>
616      <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>
617      <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>
618      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">   The change controller is: "IETF (iesg@ietf.org) - Internet</span></td><td class="lineno" valign="top"></td></tr>
619      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">   Engineering Task Force".</span></td><td class="lineno" valign="top"></td></tr>
620      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
621      <tr><td class="lineno" valign="top"></td><td class="left">12.  Security Considerations</td><td> </td><td class="right">12.  Security Considerations</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">   This section is meant to inform application developers, information</td><td> </td><td class="right">   This section is meant to inform application developers, information</td><td class="lineno" valign="top"></td></tr>
624      <tr><td class="lineno" valign="top"></td><td class="left">   providers, and users of the security limitations in HTTP/1.1 as</td><td> </td><td class="right">   providers, and users of the security limitations in HTTP/1.1 as</td><td class="lineno" valign="top"></td></tr>
625      <tr><td class="lineno" valign="top"></td><td class="left">   described by this document.  The discussion does not include</td><td> </td><td class="right">   described by this document.  The discussion does not include</td><td class="lineno" valign="top"></td></tr>
626      <tr><td class="lineno" valign="top"></td><td class="left">   definitive solutions to the problems revealed, though it does make</td><td> </td><td class="right">   definitive solutions to the problems revealed, though it does make</td><td class="lineno" valign="top"></td></tr>
627      <tr><td class="lineno" valign="top"></td><td class="left">   some suggestions for reducing security risks.</td><td> </td><td class="right">   some suggestions for reducing security risks.</td><td class="lineno" valign="top"></td></tr>
628      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
629      <tr><td class="lineno" valign="top"></td><td class="left">12.1.  Transfer of Sensitive Information</td><td> </td><td class="right">12.1.  Transfer of Sensitive Information</td><td class="lineno" valign="top"></td></tr>
630      <tr><td class="lineno"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno"></td></tr>
631      <tr bgcolor="gray" ><td></td><th><a name="part-l12" /><small>skipping to change at</small><em> page 37, line 26</em></th><th> </th><th><a name="part-r12" /><small>skipping to change at</small><em> page 39, line 22</em></th><td></td></tr>
632      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
633      <tr><td class="lineno" valign="top"></td><td class="left">13.  Acknowledgments</td><td> </td><td class="right">13.  Acknowledgments</td><td class="lineno" valign="top"></td></tr>
634      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
635      <tr><td class="lineno" valign="top"></td><td class="left">14.  References</td><td> </td><td class="right">14.  References</td><td class="lineno" valign="top"></td></tr>
636      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
637      <tr><td class="lineno" valign="top"></td><td class="left">14.1.  Normative References</td><td> </td><td class="right">14.1.  Normative References</td><td class="lineno" valign="top"></td></tr>
638      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
639      <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>
640      <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>
641      <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>
642      <tr><td><a name="diff0038" /></td></tr>
643      <tr><td class="lineno" valign="top"></td><td class="lblock">              and Message Parsing", draft-ietf-httpbis-p1-messaging-0<span class="delete">2</span></td><td> </td><td class="rblock">              and Message Parsing", draft-ietf-httpbis-p1-messaging-0<span class="insert">3</span></td><td class="lineno" valign="top"></td></tr>
644      <tr><td class="lineno" valign="top"></td><td class="lblock">              (work in progress), <span class="delete">February</span> 2008.</td><td> </td><td class="rblock">              (work in progress), <span class="insert">June</span> 2008.</td><td class="lineno" valign="top"></td></tr>
645      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
646      <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>
647      <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>
648      <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>
649      <tr><td><a name="diff0039" /></td></tr>
650      <tr><td class="lineno" valign="top"></td><td class="lblock">              and Content Negotiation", draft-ietf-httpbis-p3-payload-0<span class="delete">2</span></td><td> </td><td class="rblock">              and Content Negotiation", draft-ietf-httpbis-p3-payload-0<span class="insert">3</span></td><td class="lineno" valign="top"></td></tr>
651      <tr><td class="lineno" valign="top"></td><td class="lblock">              (work in progress), <span class="delete">February</span> 2008.</td><td> </td><td class="rblock">              (work in progress), <span class="insert">June</span> 2008.</td><td class="lineno" valign="top"></td></tr>
652      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
653      <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>
654      <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>
655      <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>
656      <tr><td><a name="diff0040" /></td></tr>
657      <tr><td class="lineno" valign="top"></td><td class="lblock">              Requests", draft-ietf-httpbis-p4-conditional-0<span class="delete">2</span> (work in</td><td> </td><td class="rblock">              Requests", draft-ietf-httpbis-p4-conditional-0<span class="insert">3</span> (work in</td><td class="lineno" valign="top"></td></tr>
658      <tr><td class="lineno" valign="top"></td><td class="lblock">              progress), <span class="delete">February</span> 2008.</td><td> </td><td class="rblock">              progress), <span class="insert">June</span> 2008.</td><td class="lineno" valign="top"></td></tr>
659      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
660      <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>
661      <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>
662      <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>
663      <tr><td><a name="diff0041" /></td></tr>
664      <tr><td class="lineno" valign="top"></td><td class="lblock">              Partial Responses", draft-ietf-httpbis-p5-range-0<span class="delete">2</span> (work</td><td> </td><td class="rblock">              Partial Responses", draft-ietf-httpbis-p5-range-0<span class="insert">3</span> (work</td><td class="lineno" valign="top"></td></tr>
665      <tr><td class="lineno" valign="top"></td><td class="lblock">              in progress), <span class="delete">February</span> 2008.</td><td> </td><td class="rblock">              in progress), <span class="insert">June</span> 2008.</td><td class="lineno" valign="top"></td></tr>
666      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
667      <tr><td class="lineno" valign="top"></td><td class="left">   [Part6]    Fielding, R., Ed., Gettys, J., Mogul, J., Frystyk, H.,</td><td> </td><td class="right">   [Part6]    Fielding, R., Ed., Gettys, J., Mogul, J., Frystyk, H.,</td><td class="lineno" valign="top"></td></tr>
668      <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>
669      <tr><td class="lineno" valign="top"></td><td class="left">              and J. Reschke, Ed., "HTTP/1.1, part 6: Caching",</td><td> </td><td class="right">              and J. Reschke, Ed., "HTTP/1.1, part 6: Caching",</td><td class="lineno" valign="top"></td></tr>
670      <tr><td><a name="diff0042" /></td></tr>
671      <tr><td class="lineno" valign="top"></td><td class="lblock">              draft-ietf-httpbis-p6-cache-0<span class="delete">2</span> (work in progress),</td><td> </td><td class="rblock">              draft-ietf-httpbis-p6-cache-0<span class="insert">3</span> (work in progress),</td><td class="lineno" valign="top"></td></tr>
672      <tr><td class="lineno" valign="top"></td><td class="lblock">              <span class="delete">February</span> 2008.</td><td> </td><td class="rblock">              <span class="insert">June</span> 2008.</td><td class="lineno" valign="top"></td></tr>
673      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
674      <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>
675      <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>
676      <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>
677      <tr><td><a name="diff0043" /></td></tr>
678      <tr><td class="lineno" valign="top"></td><td class="lblock">              draft-ietf-httpbis-p7-auth-0<span class="delete">2</span> (work in progress),</td><td> </td><td class="rblock">              draft-ietf-httpbis-p7-auth-0<span class="insert">3</span> (work in progress),</td><td class="lineno" valign="top"></td></tr>
679      <tr><td class="lineno" valign="top"></td><td class="lblock">              <span class="delete">February</span> 2008.</td><td> </td><td class="rblock">              <span class="insert">June</span> 2008.</td><td class="lineno" valign="top"></td></tr>
680      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
681      <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>
682      <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>
683      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
684      <tr><td class="lineno" valign="top"></td><td class="left">14.2.  Informative References</td><td> </td><td class="right">14.2.  Informative References</td><td class="lineno" valign="top"></td></tr>
685      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
686      <tr><td class="lineno" valign="top"></td><td class="left">   [Luo1998]  Luotonen, A., "Tunneling TCP based protocols through Web</td><td> </td><td class="right">   [Luo1998]  Luotonen, A., "Tunneling TCP based protocols through Web</td><td class="lineno" valign="top"></td></tr>
687      <tr><td class="lineno" valign="top"></td><td class="left">              proxy servers", draft-luotonen-web-proxy-tunneling-01</td><td> </td><td class="right">              proxy servers", draft-luotonen-web-proxy-tunneling-01</td><td class="lineno" valign="top"></td></tr>
688      <tr><td class="lineno" valign="top"></td><td class="left">              (work in progress), August 1998.</td><td> </td><td class="right">              (work in progress), August 1998.</td><td class="lineno" valign="top"></td></tr>
689      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
690      <tr><td class="lineno"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno"></td></tr>
691      <tr bgcolor="gray" ><td></td><th><a name="part-l13" /><small>skipping to change at</small><em> page 38, line 33</em></th><th> </th><th><a name="part-r13" /><small>skipping to change at</small><em> page 40, line 28</em></th><td></td></tr>
692      <tr><td class="lineno" valign="top"></td><td class="left">              Transfer Protocol -- HTTP/1.0", RFC 1945, May 1996.</td><td> </td><td class="right">              Transfer Protocol -- HTTP/1.0", RFC 1945, May 1996.</td><td class="lineno" valign="top"></td></tr>
693      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
694      <tr><td class="lineno" valign="top"></td><td class="left">   [RFC2068]  Fielding, R., Gettys, J., Mogul, J., Nielsen, H., and T.</td><td> </td><td class="right">   [RFC2068]  Fielding, R., Gettys, J., Mogul, J., Nielsen, H., and T.</td><td class="lineno" valign="top"></td></tr>
695      <tr><td class="lineno" valign="top"></td><td class="left">              Berners-Lee, "Hypertext Transfer Protocol -- HTTP/1.1",</td><td> </td><td class="right">              Berners-Lee, "Hypertext Transfer Protocol -- HTTP/1.1",</td><td class="lineno" valign="top"></td></tr>
696      <tr><td class="lineno" valign="top"></td><td class="left">              RFC 2068, January 1997.</td><td> </td><td class="right">              RFC 2068, January 1997.</td><td class="lineno" valign="top"></td></tr>
697      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
698      <tr><td class="lineno" valign="top"></td><td class="left">   [RFC2616]  Fielding, R., Gettys, J., Mogul, J., Frystyk, H.,</td><td> </td><td class="right">   [RFC2616]  Fielding, R., Gettys, J., Mogul, J., Frystyk, H.,</td><td class="lineno" valign="top"></td></tr>
699      <tr><td class="lineno" valign="top"></td><td class="left">              Masinter, L., Leach, P., and T. Berners-Lee, "Hypertext</td><td> </td><td class="right">              Masinter, L., Leach, P., and T. Berners-Lee, "Hypertext</td><td class="lineno" valign="top"></td></tr>
700      <tr><td class="lineno" valign="top"></td><td class="left">              Transfer Protocol -- HTTP/1.1", RFC 2616, June 1999.</td><td> </td><td class="right">              Transfer Protocol -- HTTP/1.1", RFC 2616, June 1999.</td><td class="lineno" valign="top"></td></tr>
701      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
702      <tr><td><a name="diff0044" /></td></tr>
703      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">   [RFC2817]  Khare, R. and S. Lawrence, "Upgrading to TLS Within</span></td><td class="lineno" valign="top"></td></tr>
704      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">              HTTP/1.1", RFC 2817, May 2000.</span></td><td class="lineno" valign="top"></td></tr>
705      <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>
706      <tr><td class="lineno" valign="top"></td><td class="left">   [RFC2822]  Resnick, P., "Internet Message Format", RFC 2822,</td><td> </td><td class="right">   [RFC2822]  Resnick, P., "Internet Message Format", RFC 2822,</td><td class="lineno" valign="top"></td></tr>
707      <tr><td class="lineno" valign="top"></td><td class="left">              April 2001.</td><td> </td><td class="right">              April 2001.</td><td class="lineno" valign="top"></td></tr>
708      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
709      <tr><td><a name="diff0045" /></td></tr>
710      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">   [RFC3864]  Klyne, G., Nottingham, M., and J. Mogul, "Registration</span></td><td class="lineno" valign="top"></td></tr>
711      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">              Procedures for Message Header Fields", BCP 90, RFC 3864,</span></td><td class="lineno" valign="top"></td></tr>
712      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">              September 2004.</span></td><td class="lineno" valign="top"></td></tr>
713      <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>
714      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">   [RFC5226]  Narten, T. and H. Alvestrand, "Guidelines for Writing an</span></td><td class="lineno" valign="top"></td></tr>
715      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">              IANA Considerations Section in RFCs", BCP 26, RFC 5226,</span></td><td class="lineno" valign="top"></td></tr>
716      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">              May 2008.</span></td><td class="lineno" valign="top"></td></tr>
717      <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>
718      <tr><td class="lineno" valign="top"></td><td class="left">Appendix A.  Compatibility with Previous Versions</td><td> </td><td class="right">Appendix A.  Compatibility with Previous Versions</td><td class="lineno" valign="top"></td></tr>
719      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
720      <tr><td class="lineno" valign="top"></td><td class="left">A.1.  Changes from RFC 2068</td><td> </td><td class="right">A.1.  Changes from RFC 2068</td><td class="lineno" valign="top"></td></tr>
721      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
722      <tr><td class="lineno" valign="top"></td><td class="left">   Clarified which error code should be used for inbound server failures</td><td> </td><td class="right">   Clarified which error code should be used for inbound server failures</td><td class="lineno" valign="top"></td></tr>
723      <tr><td class="lineno" valign="top"></td><td class="left">   (e.g.  DNS failures).  (Section 9.5.5).</td><td> </td><td class="right">   (e.g.  DNS failures).  (Section 9.5.5).</td><td class="lineno" valign="top"></td></tr>
724      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
725      <tr><td class="lineno" valign="top"></td><td class="left">   201 (Created) had a race that required an Etag be sent when a</td><td> </td><td class="right">   201 (Created) had a race that required an Etag be sent when a</td><td class="lineno" valign="top"></td></tr>
726      <tr><td class="lineno" valign="top"></td><td class="left">   resource is first created.  (Section 9.2.2).</td><td> </td><td class="right">