source: draft-ietf-httpbis/diffs/draft-ietf-httpbis-p2-semantics-18-from-17.diff.html @ 1697

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prepare for publication of -18 on Jan 04.

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36<body > 
37  <table border="0" cellpadding="0" cellspacing="0"> 
38  <tr bgcolor="orange"><th></th><th>&nbsp;draft-ietf-httpbis-p2-semantics-17.txt&nbsp;</th><th> </th><th>&nbsp;draft-ietf-httpbis-p2-semantics-18.txt&nbsp;</th><th></th></tr> 
39      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
40      <tr><td class="lineno" valign="top"></td><td class="left">HTTPbis Working Group                                   R. Fielding, Ed.</td><td> </td><td class="right">HTTPbis Working Group                                   R. Fielding, Ed.</td><td class="lineno" valign="top"></td></tr>
41      <tr><td class="lineno" valign="top"></td><td class="left">Internet-Draft                                                     Adobe</td><td> </td><td class="right">Internet-Draft                                                     Adobe</td><td class="lineno" valign="top"></td></tr>
42      <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>
43      <tr><td class="lineno" valign="top"></td><td class="left">Updates: 2817 (if approved)                               Alcatel-Lucent</td><td> </td><td class="right">Updates: 2817 (if approved)                               Alcatel-Lucent</td><td class="lineno" valign="top"></td></tr>
44      <tr><td class="lineno" valign="top"></td><td class="left">Intended status: Standards Track                                J. Mogul</td><td> </td><td class="right">Intended status: Standards Track                                J. Mogul</td><td class="lineno" valign="top"></td></tr>
45      <tr><td><a name="diff0001" /></td></tr>
46      <tr><td class="lineno" valign="top"></td><td class="lblock">Expires: <span class="delete">May 3, 2012 </span>                                                 HP</td><td> </td><td class="rblock">Expires: <span class="insert">July 7, 2012</span>                                                 HP</td><td class="lineno" valign="top"></td></tr>
47      <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>
48      <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>
49      <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>
50      <tr><td class="lineno" valign="top"></td><td class="left">                                                                   Adobe</td><td> </td><td class="right">                                                                   Adobe</td><td class="lineno" valign="top"></td></tr>
51      <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>
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">                                                          T. Berners-Lee</td><td> </td><td class="right">                                                          T. Berners-Lee</td><td class="lineno" valign="top"></td></tr>
54      <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>
55      <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>
56      <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>
57      <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>
58      <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>
59      <tr><td><a name="diff0002" /></td></tr>
60      <tr><td class="lineno" valign="top"></td><td class="lblock">                                                        <span class="delete">October 31, 2011</span></td><td> </td><td class="rblock">                                                        <span class="insert"> January 4, 2012</span></td><td class="lineno" valign="top"></td></tr>
61      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
62      <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>
63      <tr><td><a name="diff0003" /></td></tr>
64      <tr><td class="lineno" valign="top"></td><td class="lblock">                   draft-ietf-httpbis-p2-semantics-1<span class="delete">7</span></td><td> </td><td class="rblock">                   draft-ietf-httpbis-p2-semantics-1<span class="insert">8</span></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">Abstract</td><td> </td><td class="right">Abstract</td><td class="lineno" valign="top"></td></tr>
67      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
68      <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>
69      <tr><td class="lineno" valign="top"></td><td class="left">   protocol for distributed, collaborative, hypertext information</td><td> </td><td class="right">   protocol for distributed, collaborative, hypertext information</td><td class="lineno" valign="top"></td></tr>
70      <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>
71      <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>
72      <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>
73      <tr><td class="lineno" valign="top"></td><td class="left">   "HTTP/1.1" and, taken together, obsoletes RFC 2616.</td><td> </td><td class="right">   "HTTP/1.1" and, taken together, obsoletes RFC 2616.</td><td class="lineno" valign="top"></td></tr>
74      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
75      <tr><td class="lineno"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno"></td></tr>
76      <tr bgcolor="gray" ><td></td><th><a name="part-l2" /><small>skipping to change at</small><em> page 2, line 5</em></th><th> </th><th><a name="part-r2" /><small>skipping to change at</small><em> page 2, line 5</em></th><td></td></tr>
77      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
78      <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>
79      <tr><td class="lineno" valign="top"></td><td class="left">   group mailing list (ietf-http-wg@w3.org), which is archived at</td><td> </td><td class="right">   group mailing list (ietf-http-wg@w3.org), which is archived at</td><td class="lineno" valign="top"></td></tr>
80      <tr><td class="lineno" valign="top"></td><td class="left">   &lt;http://lists.w3.org/Archives/Public/ietf-http-wg/&gt;.</td><td> </td><td class="right">   &lt;http://lists.w3.org/Archives/Public/ietf-http-wg/&gt;.</td><td class="lineno" valign="top"></td></tr>
81      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
82      <tr><td class="lineno" valign="top"></td><td class="left">   The current issues list is at</td><td> </td><td class="right">   The current issues list is at</td><td class="lineno" valign="top"></td></tr>
83      <tr><td class="lineno" valign="top"></td><td class="left">   &lt;http://tools.ietf.org/wg/httpbis/trac/report/3&gt; and related</td><td> </td><td class="right">   &lt;http://tools.ietf.org/wg/httpbis/trac/report/3&gt; and related</td><td class="lineno" valign="top"></td></tr>
84      <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>
85      <tr><td class="lineno" valign="top"></td><td class="left">   &lt;http://tools.ietf.org/wg/httpbis/&gt;.</td><td> </td><td class="right">   &lt;http://tools.ietf.org/wg/httpbis/&gt;.</td><td class="lineno" valign="top"></td></tr>
86      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
87      <tr><td><a name="diff0004" /></td></tr>
88      <tr><td class="lineno" valign="top"></td><td class="lblock">   The changes in this draft are summarized in Appendix C.1<span class="delete">8</span>.</td><td> </td><td class="rblock">   The changes in this draft are summarized in Appendix C.1<span class="insert">9</span>.</td><td class="lineno" valign="top"></td></tr>
89      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
90      <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>
91      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
92      <tr><td class="lineno" valign="top"></td><td class="left">   This Internet-Draft is submitted in full conformance with the</td><td> </td><td class="right">   This Internet-Draft is submitted in full conformance with the</td><td class="lineno" valign="top"></td></tr>
93      <tr><td class="lineno" valign="top"></td><td class="left">   provisions of BCP 78 and BCP 79.</td><td> </td><td class="right">   provisions of BCP 78 and BCP 79.</td><td class="lineno" valign="top"></td></tr>
94      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
95      <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>
96      <tr><td class="lineno" valign="top"></td><td class="left">   Task Force (IETF).  Note that other groups may also distribute</td><td> </td><td class="right">   Task Force (IETF).  Note that other groups may also distribute</td><td class="lineno" valign="top"></td></tr>
97      <tr><td class="lineno" valign="top"></td><td class="left">   working documents as Internet-Drafts.  The list of current Internet-</td><td> </td><td class="right">   working documents as Internet-Drafts.  The list of current Internet-</td><td class="lineno" valign="top"></td></tr>
98      <tr><td class="lineno" valign="top"></td><td class="left">   Drafts is at http://datatracker.ietf.org/drafts/current/.</td><td> </td><td class="right">   Drafts is at http://datatracker.ietf.org/drafts/current/.</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">   Internet-Drafts are draft documents valid for a maximum of six months</td><td> </td><td class="right">   Internet-Drafts are draft documents valid for a maximum of six months</td><td class="lineno" valign="top"></td></tr>
101      <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>
102      <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>
103      <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>
104      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
105      <tr><td><a name="diff0005" /></td></tr>
106      <tr><td class="lineno" valign="top"></td><td class="lblock">   This Internet-Draft will expire on <span class="delete">May 3</span>, 2012.</td><td> </td><td class="rblock">   This Internet-Draft will expire on <span class="insert">July 7</span>, 2012.</td><td class="lineno" valign="top"></td></tr>
107      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
108      <tr><td class="lineno" valign="top"></td><td class="left">Copyright Notice</td><td> </td><td class="right">Copyright Notice</td><td class="lineno" valign="top"></td></tr>
109      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
110      <tr><td><a name="diff0006" /></td></tr>
111      <tr><td class="lineno" valign="top"></td><td class="lblock">   Copyright (c) 201<span class="delete">1</span> IETF Trust and the persons identified as the</td><td> </td><td class="rblock">   Copyright (c) 201<span class="insert">2</span> IETF Trust and the persons identified as the</td><td class="lineno" valign="top"></td></tr>
112      <tr><td class="lineno" valign="top"></td><td class="left">   document authors.  All rights reserved.</td><td> </td><td class="right">   document authors.  All rights reserved.</td><td class="lineno" valign="top"></td></tr>
113      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
114      <tr><td class="lineno" valign="top"></td><td class="left">   This document is subject to BCP 78 and the IETF Trust's Legal</td><td> </td><td class="right">   This document is subject to BCP 78 and the IETF Trust's Legal</td><td class="lineno" valign="top"></td></tr>
115      <tr><td class="lineno" valign="top"></td><td class="left">   Provisions Relating to IETF Documents</td><td> </td><td class="right">   Provisions Relating to IETF Documents</td><td class="lineno" valign="top"></td></tr>
116      <tr><td class="lineno" valign="top"></td><td class="left">   (http://trustee.ietf.org/license-info) in effect on the date of</td><td> </td><td class="right">   (http://trustee.ietf.org/license-info) in effect on the date of</td><td class="lineno" valign="top"></td></tr>
117      <tr><td class="lineno" valign="top"></td><td class="left">   publication of this document.  Please review these documents</td><td> </td><td class="right">   publication of this document.  Please review these documents</td><td class="lineno" valign="top"></td></tr>
118      <tr><td class="lineno" valign="top"></td><td class="left">   carefully, as they describe your rights and restrictions with respect</td><td> </td><td class="right">   carefully, as they describe your rights and restrictions with respect</td><td class="lineno" valign="top"></td></tr>
119      <tr><td class="lineno" valign="top"></td><td class="left">   to this document.  Code Components extracted from this document must</td><td> </td><td class="right">   to this document.  Code Components extracted from this document must</td><td class="lineno" valign="top"></td></tr>
120      <tr><td class="lineno" valign="top"></td><td class="left">   include Simplified BSD License text as described in Section 4.e of</td><td> </td><td class="right">   include Simplified BSD License text as described in Section 4.e of</td><td class="lineno" valign="top"></td></tr>
121      <tr><td class="lineno" valign="top"></td><td class="left">   the Trust Legal Provisions and are provided without warranty as</td><td> </td><td class="right">   the Trust Legal Provisions and are provided without warranty as</td><td class="lineno" valign="top"></td></tr>
122      <tr><td class="lineno"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno"></td></tr>
123      <tr bgcolor="gray" ><td></td><th><a name="part-l3" /><small>skipping to change at</small><em> page 3, line 18</em></th><th> </th><th><a name="part-r3" /><small>skipping to change at</small><em> page 3, line 18</em></th><td></td></tr>
124      <tr><td class="lineno" valign="top"></td><td class="left">       1.2.2.  ABNF Rules defined in other Parts of the</td><td> </td><td class="right">       1.2.2.  ABNF Rules defined in other Parts of the</td><td class="lineno" valign="top"></td></tr>
125      <tr><td class="lineno" valign="top"></td><td class="left">               Specification  . . . . . . . . . . . . . . . . . . . .  7</td><td> </td><td class="right">               Specification  . . . . . . . . . . . . . . . . . . . .  7</td><td class="lineno" valign="top"></td></tr>
126      <tr><td class="lineno" valign="top"></td><td class="left">   2.  Method . . . . . . . . . . . . . . . . . . . . . . . . . . . .  7</td><td> </td><td class="right">   2.  Method . . . . . . . . . . . . . . . . . . . . . . . . . . . .  7</td><td class="lineno" valign="top"></td></tr>
127      <tr><td class="lineno" valign="top"></td><td class="left">     2.1.  Overview of Methods  . . . . . . . . . . . . . . . . . . .  8</td><td> </td><td class="right">     2.1.  Overview of Methods  . . . . . . . . . . . . . . . . . . .  8</td><td class="lineno" valign="top"></td></tr>
128      <tr><td class="lineno" valign="top"></td><td class="left">     2.2.  Method Registry  . . . . . . . . . . . . . . . . . . . . .  8</td><td> </td><td class="right">     2.2.  Method Registry  . . . . . . . . . . . . . . . . . . . . .  8</td><td class="lineno" valign="top"></td></tr>
129      <tr><td class="lineno" valign="top"></td><td class="left">       2.2.1.  Considerations for New Methods . . . . . . . . . . . .  9</td><td> </td><td class="right">       2.2.1.  Considerations for New Methods . . . . . . . . . . . .  9</td><td class="lineno" valign="top"></td></tr>
130      <tr><td class="lineno" valign="top"></td><td class="left">   3.  Header Fields  . . . . . . . . . . . . . . . . . . . . . . . .  9</td><td> </td><td class="right">   3.  Header Fields  . . . . . . . . . . . . . . . . . . . . . . . .  9</td><td class="lineno" valign="top"></td></tr>
131      <tr><td class="lineno" valign="top"></td><td class="left">     3.1.  Considerations for Creating Header Fields  . . . . . . . .  9</td><td> </td><td class="right">     3.1.  Considerations for Creating Header Fields  . . . . . . . .  9</td><td class="lineno" valign="top"></td></tr>
132      <tr><td class="lineno" valign="top"></td><td class="left">     3.2.  Request Header Fields  . . . . . . . . . . . . . . . . . . 11</td><td> </td><td class="right">     3.2.  Request Header Fields  . . . . . . . . . . . . . . . . . . 11</td><td class="lineno" valign="top"></td></tr>
133      <tr><td class="lineno" valign="top"></td><td class="left">     3.3.  Response Header Fields . . . . . . . . . . . . . . . . . . 12</td><td> </td><td class="right">     3.3.  Response Header Fields . . . . . . . . . . . . . . . . . . 12</td><td class="lineno" valign="top"></td></tr>
134      <tr><td><a name="diff0007" /></td></tr>
135      <tr><td class="lineno" valign="top"></td><td class="lblock">   4.  Status Code and Reason Phrase  . . . . . . . . . . . . . . . . 1<span class="delete">2</span></td><td> </td><td class="rblock">   4.  Status Code and Reason Phrase  . . . . . . . . . . . . . . . . 1<span class="insert">3</span></td><td class="lineno" valign="top"></td></tr>
136      <tr><td class="lineno" valign="top"></td><td class="left">     4.1.  Overview of Status Codes . . . . . . . . . . . . . . . . . 13</td><td> </td><td class="right">     4.1.  Overview of Status Codes . . . . . . . . . . . . . . . . . 13</td><td class="lineno" valign="top"></td></tr>
137      <tr><td class="lineno" valign="top"></td><td class="left">     4.2.  Status Code Registry . . . . . . . . . . . . . . . . . . . 15</td><td> </td><td class="right">     4.2.  Status Code Registry . . . . . . . . . . . . . . . . . . . 15</td><td class="lineno" valign="top"></td></tr>
138      <tr><td class="lineno" valign="top"></td><td class="left">       4.2.1.  Considerations for New Status Codes  . . . . . . . . . 15</td><td> </td><td class="right">       4.2.1.  Considerations for New Status Codes  . . . . . . . . . 15</td><td class="lineno" valign="top"></td></tr>
139      <tr><td class="lineno" valign="top"></td><td class="left">   5.  Representation . . . . . . . . . . . . . . . . . . . . . . . . 16</td><td> </td><td class="right">   5.  Representation . . . . . . . . . . . . . . . . . . . . . . . . 16</td><td class="lineno" valign="top"></td></tr>
140      <tr><td class="lineno" valign="top"></td><td class="left">     5.1.  Identifying the Resource Associated with a</td><td> </td><td class="right">     5.1.  Identifying the Resource Associated with a</td><td class="lineno" valign="top"></td></tr>
141      <tr><td class="lineno" valign="top"></td><td class="left">           Representation . . . . . . . . . . . . . . . . . . . . . . 16</td><td> </td><td class="right">           Representation . . . . . . . . . . . . . . . . . . . . . . 16</td><td class="lineno" valign="top"></td></tr>
142      <tr><td class="lineno" valign="top"></td><td class="left">   6.  Method Definitions . . . . . . . . . . . . . . . . . . . . . . 17</td><td> </td><td class="right">   6.  Method Definitions . . . . . . . . . . . . . . . . . . . . . . 17</td><td class="lineno" valign="top"></td></tr>
143      <tr><td class="lineno" valign="top"></td><td class="left">     6.1.  Safe and Idempotent Methods  . . . . . . . . . . . . . . . 17</td><td> </td><td class="right">     6.1.  Safe and Idempotent Methods  . . . . . . . . . . . . . . . 17</td><td class="lineno" valign="top"></td></tr>
144      <tr><td class="lineno" valign="top"></td><td class="left">       6.1.1.  Safe Methods . . . . . . . . . . . . . . . . . . . . . 17</td><td> </td><td class="right">       6.1.1.  Safe Methods . . . . . . . . . . . . . . . . . . . . . 17</td><td class="lineno" valign="top"></td></tr>
145      <tr><td class="lineno" valign="top"></td><td class="left">       6.1.2.  Idempotent Methods . . . . . . . . . . . . . . . . . . 17</td><td> </td><td class="right">       6.1.2.  Idempotent Methods . . . . . . . . . . . . . . . . . . 17</td><td class="lineno" valign="top"></td></tr>
146      <tr><td class="lineno"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno"></td></tr>
147      <tr bgcolor="gray" ><td></td><th><a name="part-l4" /><small>skipping to change at</small><em> page 4, line 19</em></th><th> </th><th><a name="part-r4" /><small>skipping to change at</small><em> page 4, line 19</em></th><td></td></tr>
148      <tr><td class="lineno" valign="top"></td><td class="left">       7.3.7.  306 (Unused) . . . . . . . . . . . . . . . . . . . . . 33</td><td> </td><td class="right">       7.3.7.  306 (Unused) . . . . . . . . . . . . . . . . . . . . . 33</td><td class="lineno" valign="top"></td></tr>
149      <tr><td class="lineno" valign="top"></td><td class="left">       7.3.8.  307 Temporary Redirect . . . . . . . . . . . . . . . . 33</td><td> </td><td class="right">       7.3.8.  307 Temporary Redirect . . . . . . . . . . . . . . . . 33</td><td class="lineno" valign="top"></td></tr>
150      <tr><td class="lineno" valign="top"></td><td class="left">     7.4.  Client Error 4xx . . . . . . . . . . . . . . . . . . . . . 34</td><td> </td><td class="right">     7.4.  Client Error 4xx . . . . . . . . . . . . . . . . . . . . . 34</td><td class="lineno" valign="top"></td></tr>
151      <tr><td class="lineno" valign="top"></td><td class="left">       7.4.1.  400 Bad Request  . . . . . . . . . . . . . . . . . . . 34</td><td> </td><td class="right">       7.4.1.  400 Bad Request  . . . . . . . . . . . . . . . . . . . 34</td><td class="lineno" valign="top"></td></tr>
152      <tr><td class="lineno" valign="top"></td><td class="left">       7.4.2.  401 Unauthorized . . . . . . . . . . . . . . . . . . . 34</td><td> </td><td class="right">       7.4.2.  401 Unauthorized . . . . . . . . . . . . . . . . . . . 34</td><td class="lineno" valign="top"></td></tr>
153      <tr><td class="lineno" valign="top"></td><td class="left">       7.4.3.  402 Payment Required . . . . . . . . . . . . . . . . . 34</td><td> </td><td class="right">       7.4.3.  402 Payment Required . . . . . . . . . . . . . . . . . 34</td><td class="lineno" valign="top"></td></tr>
154      <tr><td class="lineno" valign="top"></td><td class="left">       7.4.4.  403 Forbidden  . . . . . . . . . . . . . . . . . . . . 34</td><td> </td><td class="right">       7.4.4.  403 Forbidden  . . . . . . . . . . . . . . . . . . . . 34</td><td class="lineno" valign="top"></td></tr>
155      <tr><td class="lineno" valign="top"></td><td class="left">       7.4.5.  404 Not Found  . . . . . . . . . . . . . . . . . . . . 35</td><td> </td><td class="right">       7.4.5.  404 Not Found  . . . . . . . . . . . . . . . . . . . . 35</td><td class="lineno" valign="top"></td></tr>
156      <tr><td class="lineno" valign="top"></td><td class="left">       7.4.6.  405 Method Not Allowed . . . . . . . . . . . . . . . . 35</td><td> </td><td class="right">       7.4.6.  405 Method Not Allowed . . . . . . . . . . . . . . . . 35</td><td class="lineno" valign="top"></td></tr>
157      <tr><td class="lineno" valign="top"></td><td class="left">       7.4.7.  406 Not Acceptable . . . . . . . . . . . . . . . . . . 35</td><td> </td><td class="right">       7.4.7.  406 Not Acceptable . . . . . . . . . . . . . . . . . . 35</td><td class="lineno" valign="top"></td></tr>
158      <tr><td><a name="diff0008" /></td></tr>
159      <tr><td class="lineno" valign="top"></td><td class="lblock">       7.4.8.  407 Proxy Authentication Required  . . . . . . . . . . 3<span class="delete">5</span></td><td> </td><td class="rblock">       7.4.8.  407 Proxy Authentication Required  . . . . . . . . . . 3<span class="insert">6</span></td><td class="lineno" valign="top"></td></tr>
160      <tr><td class="lineno" valign="top"></td><td class="left">       7.4.9.  408 Request Timeout  . . . . . . . . . . . . . . . . . 36</td><td> </td><td class="right">       7.4.9.  408 Request Timeout  . . . . . . . . . . . . . . . . . 36</td><td class="lineno" valign="top"></td></tr>
161      <tr><td class="lineno" valign="top"></td><td class="left">       7.4.10. 409 Conflict . . . . . . . . . . . . . . . . . . . . . 36</td><td> </td><td class="right">       7.4.10. 409 Conflict . . . . . . . . . . . . . . . . . . . . . 36</td><td class="lineno" valign="top"></td></tr>
162      <tr><td class="lineno" valign="top"></td><td class="left">       7.4.11. 410 Gone . . . . . . . . . . . . . . . . . . . . . . . 36</td><td> </td><td class="right">       7.4.11. 410 Gone . . . . . . . . . . . . . . . . . . . . . . . 36</td><td class="lineno" valign="top"></td></tr>
163      <tr><td class="lineno" valign="top"></td><td class="left">       7.4.12. 411 Length Required  . . . . . . . . . . . . . . . . . 37</td><td> </td><td class="right">       7.4.12. 411 Length Required  . . . . . . . . . . . . . . . . . 37</td><td class="lineno" valign="top"></td></tr>
164      <tr><td class="lineno" valign="top"></td><td class="left">       7.4.13. 412 Precondition Failed  . . . . . . . . . . . . . . . 37</td><td> </td><td class="right">       7.4.13. 412 Precondition Failed  . . . . . . . . . . . . . . . 37</td><td class="lineno" valign="top"></td></tr>
165      <tr><td class="lineno" valign="top"></td><td class="left">       7.4.14. 413 Request Representation Too Large . . . . . . . . . 37</td><td> </td><td class="right">       7.4.14. 413 Request Representation Too Large . . . . . . . . . 37</td><td class="lineno" valign="top"></td></tr>
166      <tr><td class="lineno" valign="top"></td><td class="left">       7.4.15. 414 URI Too Long . . . . . . . . . . . . . . . . . . . 37</td><td> </td><td class="right">       7.4.15. 414 URI Too Long . . . . . . . . . . . . . . . . . . . 37</td><td class="lineno" valign="top"></td></tr>
167      <tr><td class="lineno" valign="top"></td><td class="left">       7.4.16. 415 Unsupported Media Type . . . . . . . . . . . . . . 37</td><td> </td><td class="right">       7.4.16. 415 Unsupported Media Type . . . . . . . . . . . . . . 37</td><td class="lineno" valign="top"></td></tr>
168      <tr><td class="lineno" valign="top"></td><td class="left">       7.4.17. 416 Requested Range Not Satisfiable  . . . . . . . . . 38</td><td> </td><td class="right">       7.4.17. 416 Requested Range Not Satisfiable  . . . . . . . . . 38</td><td class="lineno" valign="top"></td></tr>
169      <tr><td class="lineno" valign="top"></td><td class="left">       7.4.18. 417 Expectation Failed . . . . . . . . . . . . . . . . 38</td><td> </td><td class="right">       7.4.18. 417 Expectation Failed . . . . . . . . . . . . . . . . 38</td><td class="lineno" valign="top"></td></tr>
170      <tr><td class="lineno"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno"></td></tr>
171      <tr bgcolor="gray" ><td></td><th><a name="part-l5" /><small>skipping to change at</small><em> page 5, line 4</em></th><th> </th><th><a name="part-r5" /><small>skipping to change at</small><em> page 5, line 4</em></th><td></td></tr>
172      <tr><td class="lineno" valign="top"></td><td class="left">     9.3.  Expect . . . . . . . . . . . . . . . . . . . . . . . . . . 44</td><td> </td><td class="right">     9.3.  Expect . . . . . . . . . . . . . . . . . . . . . . . . . . 44</td><td class="lineno" valign="top"></td></tr>
173      <tr><td class="lineno" valign="top"></td><td class="left">     9.4.  From . . . . . . . . . . . . . . . . . . . . . . . . . . . 44</td><td> </td><td class="right">     9.4.  From . . . . . . . . . . . . . . . . . . . . . . . . . . . 44</td><td class="lineno" valign="top"></td></tr>
174      <tr><td class="lineno" valign="top"></td><td class="left">     9.5.  Location . . . . . . . . . . . . . . . . . . . . . . . . . 45</td><td> </td><td class="right">     9.5.  Location . . . . . . . . . . . . . . . . . . . . . . . . . 45</td><td class="lineno" valign="top"></td></tr>
175      <tr><td class="lineno" valign="top"></td><td class="left">     9.6.  Max-Forwards . . . . . . . . . . . . . . . . . . . . . . . 46</td><td> </td><td class="right">     9.6.  Max-Forwards . . . . . . . . . . . . . . . . . . . . . . . 46</td><td class="lineno" valign="top"></td></tr>
176      <tr><td class="lineno" valign="top"></td><td class="left">     9.7.  Referer  . . . . . . . . . . . . . . . . . . . . . . . . . 47</td><td> </td><td class="right">     9.7.  Referer  . . . . . . . . . . . . . . . . . . . . . . . . . 47</td><td class="lineno" valign="top"></td></tr>
177      <tr><td class="lineno" valign="top"></td><td class="left">     9.8.  Retry-After  . . . . . . . . . . . . . . . . . . . . . . . 47</td><td> </td><td class="right">     9.8.  Retry-After  . . . . . . . . . . . . . . . . . . . . . . . 47</td><td class="lineno" valign="top"></td></tr>
178      <tr><td class="lineno" valign="top"></td><td class="left">     9.9.  Server . . . . . . . . . . . . . . . . . . . . . . . . . . 48</td><td> </td><td class="right">     9.9.  Server . . . . . . . . . . . . . . . . . . . . . . . . . . 48</td><td class="lineno" valign="top"></td></tr>
179      <tr><td class="lineno" valign="top"></td><td class="left">     9.10. User-Agent . . . . . . . . . . . . . . . . . . . . . . . . 48</td><td> </td><td class="right">     9.10. User-Agent . . . . . . . . . . . . . . . . . . . . . . . . 48</td><td class="lineno" valign="top"></td></tr>
180      <tr><td class="lineno" valign="top"></td><td class="left">   10. IANA Considerations  . . . . . . . . . . . . . . . . . . . . . 49</td><td> </td><td class="right">   10. IANA Considerations  . . . . . . . . . . . . . . . . . . . . . 49</td><td class="lineno" valign="top"></td></tr>
181      <tr><td class="lineno" valign="top"></td><td class="left">     10.1. Method Registry  . . . . . . . . . . . . . . . . . . . . . 49</td><td> </td><td class="right">     10.1. Method Registry  . . . . . . . . . . . . . . . . . . . . . 49</td><td class="lineno" valign="top"></td></tr>
182      <tr><td><a name="diff0009" /></td></tr>
183      <tr><td class="lineno" valign="top"></td><td class="lblock">     10.2. Status Code Registry . . . . . . . . . . . . . . . . . . . <span class="delete">49</span></td><td> </td><td class="rblock">     10.2. Status Code Registry . . . . . . . . . . . . . . . . . . . <span class="insert">50</span></td><td class="lineno" valign="top"></td></tr>
184      <tr><td class="lineno" valign="top"></td><td class="left">     10.3. Header Field Registration  . . . . . . . . . . . . . . . . 51</td><td> </td><td class="right">     10.3. Header Field Registration  . . . . . . . . . . . . . . . . 51</td><td class="lineno" valign="top"></td></tr>
185      <tr><td><a name="diff0010" /></td></tr>
186      <tr><td class="lineno" valign="top"></td><td class="lblock">   11. Security Considerations  . . . . . . . . . . . . . . . . . . . <span class="delete">51</span></td><td> </td><td class="rblock">   11. Security Considerations  . . . . . . . . . . . . . . . . . . . <span class="insert">52</span></td><td class="lineno" valign="top"></td></tr>
187      <tr><td class="lineno" valign="top"></td><td class="lblock">     11.1. Transfer of Sensitive Information  . . . . . . . . . . . . <span class="delete">51</span></td><td> </td><td class="rblock">     11.1. Transfer of Sensitive Information  . . . . . . . . . . . . <span class="insert">52</span></td><td class="lineno" valign="top"></td></tr>
188      <tr><td class="lineno" valign="top"></td><td class="lblock">     11.2. Encoding Sensitive Information in URIs . . . . . . . . . . <span class="delete">52</span></td><td> </td><td class="rblock">     11.2. Encoding Sensitive Information in URIs . . . . . . . . . . <span class="insert">53</span></td><td class="lineno" valign="top"></td></tr>
189      <tr><td class="lineno" valign="top"></td><td class="lblock">     11.3. Location Headers and Spoofing  . . . . . . . . . . . . . . <span class="delete">53</span></td><td> </td><td class="rblock">     11.3. Location Headers and Spoofing  . . . . . . . . . . . . . . <span class="insert">54</span></td><td class="lineno" valign="top"></td></tr>
190      <tr><td class="lineno" valign="top"></td><td class="lblock">     11.4. Security Considerations for CONNECT  . . . . . . . . . . . <span class="delete">53</span></td><td> </td><td class="rblock">     11.4. Security Considerations for CONNECT  . . . . . . . . . . . <span class="insert">54</span></td><td class="lineno" valign="top"></td></tr>
191      <tr><td class="lineno" valign="top"></td><td class="lblock">   12. Acknowledgments  . . . . . . . . . . . . . . . . . . . . . . . <span class="delete">53</span></td><td> </td><td class="rblock">   12. Acknowledgments  . . . . . . . . . . . . . . . . . . . . . . . <span class="insert">54</span></td><td class="lineno" valign="top"></td></tr>
192      <tr><td class="lineno" valign="top"></td><td class="lblock">   13. References . . . . . . . . . . . . . . . . . . . . . . . . . . <span class="delete">53</span></td><td> </td><td class="rblock">   13. References . . . . . . . . . . . . . . . . . . . . . . . . . . <span class="insert">54</span></td><td class="lineno" valign="top"></td></tr>
193      <tr><td class="lineno" valign="top"></td><td class="lblock">     13.1. Normative References . . . . . . . . . . . . . . . . . . . <span class="delete">53</span></td><td> </td><td class="rblock">     13.1. Normative References . . . . . . . . . . . . . . . . . . . <span class="insert">54</span></td><td class="lineno" valign="top"></td></tr>
194      <tr><td class="lineno" valign="top"></td><td class="lblock">     13.2. Informative References . . . . . . . . . . . . . . . . . . <span class="delete">54</span></td><td> </td><td class="rblock">     13.2. Informative References . . . . . . . . . . . . . . . . . . <span class="insert">55</span></td><td class="lineno" valign="top"></td></tr>
195      <tr><td class="lineno" valign="top"></td><td class="lblock">   Appendix A.  Changes from RFC 2616 . . . . . . . . . . . . . . . . <span class="delete">55</span></td><td> </td><td class="rblock">   Appendix A.  Changes from RFC 2616 . . . . . . . . . . . . . . . . <span class="insert">56</span></td><td class="lineno" valign="top"></td></tr>
196      <tr><td class="lineno" valign="top"></td><td class="lblock">   Appendix B.  Collected ABNF  . . . . . . . . . . . . . . . . . . . <span class="delete">56</span></td><td> </td><td class="rblock">   Appendix B.  Collected ABNF  . . . . . . . . . . . . . . . . . . . <span class="insert">57</span></td><td class="lineno" valign="top"></td></tr>
197      <tr><td class="lineno" valign="top"></td><td class="left">   Appendix C.  Change Log (to be removed by RFC Editor before</td><td> </td><td class="right">   Appendix C.  Change Log (to be removed by RFC Editor before</td><td class="lineno" valign="top"></td></tr>
198      <tr><td><a name="diff0011" /></td></tr>
199      <tr><td class="lineno" valign="top"></td><td class="lblock">                publication)  . . . . . . . . . . . . . . . . . . . . <span class="delete">59</span></td><td> </td><td class="rblock">                publication)  . . . . . . . . . . . . . . . . . . . . <span class="insert">60</span></td><td class="lineno" valign="top"></td></tr>
200      <tr><td class="lineno" valign="top"></td><td class="lblock">     C.1.  Since RFC 2616 . . . . . . . . . . . . . . . . . . . . . . <span class="delete">59</span></td><td> </td><td class="rblock">     C.1.  Since RFC 2616 . . . . . . . . . . . . . . . . . . . . . . <span class="insert">60</span></td><td class="lineno" valign="top"></td></tr>
201      <tr><td class="lineno" valign="top"></td><td class="lblock">     C.2.  Since draft-ietf-httpbis-p2-semantics-00 . . . . . . . . . <span class="delete">59</span></td><td> </td><td class="rblock">     C.2.  Since draft-ietf-httpbis-p2-semantics-00 . . . . . . . . . <span class="insert">60</span></td><td class="lineno" valign="top"></td></tr>
202      <tr><td class="lineno" valign="top"></td><td class="lblock">     C.3.  Since draft-ietf-httpbis-p2-semantics-01 . . . . . . . . . <span class="delete">59</span></td><td> </td><td class="rblock">     C.3.  Since draft-ietf-httpbis-p2-semantics-01 . . . . . . . . . <span class="insert">60</span></td><td class="lineno" valign="top"></td></tr>
203      <tr><td class="lineno" valign="top"></td><td class="lblock">     C.4.  Since draft-ietf-httpbis-p2-semantics-02 . . . . . . . . . <span class="delete">60</span></td><td> </td><td class="rblock">     C.4.  Since draft-ietf-httpbis-p2-semantics-02 . . . . . . . . . <span class="insert">61</span></td><td class="lineno" valign="top"></td></tr>
204      <tr><td class="lineno" valign="top"></td><td class="lblock">     C.5.  Since draft-ietf-httpbis-p2-semantics-03 . . . . . . . . . <span class="delete">61</span></td><td> </td><td class="rblock">     C.5.  Since draft-ietf-httpbis-p2-semantics-03 . . . . . . . . . <span class="insert">62</span></td><td class="lineno" valign="top"></td></tr>
205      <tr><td class="lineno" valign="top"></td><td class="lblock">     C.6.  Since draft-ietf-httpbis-p2-semantics-04 . . . . . . . . . <span class="delete">61</span></td><td> </td><td class="rblock">     C.6.  Since draft-ietf-httpbis-p2-semantics-04 . . . . . . . . . <span class="insert">62</span></td><td class="lineno" valign="top"></td></tr>
206      <tr><td class="lineno" valign="top"></td><td class="lblock">     C.7.  Since draft-ietf-httpbis-p2-semantics-05 . . . . . . . . . <span class="delete">61</span></td><td> </td><td class="rblock">     C.7.  Since draft-ietf-httpbis-p2-semantics-05 . . . . . . . . . <span class="insert">62</span></td><td class="lineno" valign="top"></td></tr>
207      <tr><td class="lineno" valign="top"></td><td class="lblock">     C.8.  Since draft-ietf-httpbis-p2-semantics-06 . . . . . . . . . <span class="delete">62</span></td><td> </td><td class="rblock">     C.8.  Since draft-ietf-httpbis-p2-semantics-06 . . . . . . . . . <span class="insert">63</span></td><td class="lineno" valign="top"></td></tr>
208      <tr><td class="lineno" valign="top"></td><td class="lblock">     C.9.  Since draft-ietf-httpbis-p2-semantics-07 . . . . . . . . . <span class="delete">62</span></td><td> </td><td class="rblock">     C.9.  Since draft-ietf-httpbis-p2-semantics-07 . . . . . . . . . <span class="insert">63</span></td><td class="lineno" valign="top"></td></tr>
209      <tr><td class="lineno" valign="top"></td><td class="lblock">     C.10. Since draft-ietf-httpbis-p2-semantics-08 . . . . . . . . . <span class="delete">63</span></td><td> </td><td class="rblock">     C.10. Since draft-ietf-httpbis-p2-semantics-08 . . . . . . . . . <span class="insert">64</span></td><td class="lineno" valign="top"></td></tr>
210      <tr><td class="lineno" valign="top"></td><td class="lblock">     C.11. Since draft-ietf-httpbis-p2-semantics-09 . . . . . . . . . <span class="delete">63</span></td><td> </td><td class="rblock">     C.11. Since draft-ietf-httpbis-p2-semantics-09 . . . . . . . . . <span class="insert">64</span></td><td class="lineno" valign="top"></td></tr>
211      <tr><td class="lineno" valign="top"></td><td class="lblock">     C.12. Since draft-ietf-httpbis-p2-semantics-10 . . . . . . . . . <span class="delete">63</span></td><td> </td><td class="rblock">     C.12. Since draft-ietf-httpbis-p2-semantics-10 . . . . . . . . . <span class="insert">64</span></td><td class="lineno" valign="top"></td></tr>
212      <tr><td class="lineno" valign="top"></td><td class="lblock">     C.13. Since draft-ietf-httpbis-p2-semantics-11 . . . . . . . . . <span class="delete">64</span></td><td> </td><td class="rblock">     C.13. Since draft-ietf-httpbis-p2-semantics-11 . . . . . . . . . <span class="insert">65</span></td><td class="lineno" valign="top"></td></tr>
213      <tr><td class="lineno" valign="top"></td><td class="lblock">     C.14. Since draft-ietf-httpbis-p2-semantics-12 . . . . . . . . . <span class="delete">64</span></td><td> </td><td class="rblock">     C.14. Since draft-ietf-httpbis-p2-semantics-12 . . . . . . . . . <span class="insert">65</span></td><td class="lineno" valign="top"></td></tr>
214      <tr><td class="lineno" valign="top"></td><td class="lblock">     C.15. Since draft-ietf-httpbis-p2-semantics-13 . . . . . . . . . <span class="delete">65</span></td><td> </td><td class="rblock">     C.15. Since draft-ietf-httpbis-p2-semantics-13 . . . . . . . . . <span class="insert">66</span></td><td class="lineno" valign="top"></td></tr>
215      <tr><td class="lineno" valign="top"></td><td class="lblock">     C.16. Since draft-ietf-httpbis-p2-semantics-14 . . . . . . . . . <span class="delete">66</span></td><td> </td><td class="rblock">     C.16. Since draft-ietf-httpbis-p2-semantics-14 . . . . . . . . . <span class="insert">67</span></td><td class="lineno" valign="top"></td></tr>
216      <tr><td class="lineno" valign="top"></td><td class="lblock">     C.17. Since draft-ietf-httpbis-p2-semantics-15 . . . . . . . . . <span class="delete">66</span></td><td> </td><td class="rblock">     C.17. Since draft-ietf-httpbis-p2-semantics-15 . . . . . . . . . <span class="insert">67</span></td><td class="lineno" valign="top"></td></tr>
217      <tr><td class="lineno" valign="top"></td><td class="lblock">     C.18. Since draft-ietf-httpbis-p2-semantics-16 . . . . . . . . . <span class="delete">66</span></td><td> </td><td class="rblock">     C.18. Since draft-ietf-httpbis-p2-semantics-16 . . . . . . . . . <span class="insert">67</span></td><td class="lineno" valign="top"></td></tr>
218      <tr><td class="lineno" valign="top"></td><td class="lblock">   Index  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . <span class="delete">66</span></td><td> </td><td class="rblock"><span class="insert">     C.19. Since draft-ietf-httpbis-p2-semantics-17 . . . . . . . . . 67</span></td><td class="lineno" valign="top"></td></tr>
219      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock">   Index  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . <span class="insert">68</span></td><td class="lineno" valign="top"></td></tr>
220      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
221      <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>
222      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
223      <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>
224      <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>
225      <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>
226      <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>
227      <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>
228      <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>
229      <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>
230      <tr><td class="lineno"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno"></td></tr>
231      <tr bgcolor="gray" ><td></td><th><a name="part-l6" /><small>skipping to change at</small><em> page 7, line 26</em></th><th> </th><th><a name="part-r6" /><small>skipping to change at</small><em> page 7, line 26</em></th><td></td></tr>
232      <tr><td class="lineno" valign="top"></td><td class="left">   [RFC5234], Appendix B.1: ALPHA (letters), CR (carriage return), CRLF</td><td> </td><td class="right">   [RFC5234], Appendix B.1: ALPHA (letters), CR (carriage return), CRLF</td><td class="lineno" valign="top"></td></tr>
233      <tr><td class="lineno" valign="top"></td><td class="left">   (CR LF), CTL (controls), DIGIT (decimal 0-9), DQUOTE (double quote),</td><td> </td><td class="right">   (CR LF), CTL (controls), DIGIT (decimal 0-9), DQUOTE (double quote),</td><td class="lineno" valign="top"></td></tr>
234      <tr><td class="lineno" valign="top"></td><td class="left">   HEXDIG (hexadecimal 0-9/A-F/a-f), HTAB (horizontal tab), LF (line</td><td> </td><td class="right">   HEXDIG (hexadecimal 0-9/A-F/a-f), HTAB (horizontal tab), LF (line</td><td class="lineno" valign="top"></td></tr>
235      <tr><td class="lineno" valign="top"></td><td class="left">   feed), OCTET (any 8-bit sequence of data), SP (space), and VCHAR (any</td><td> </td><td class="right">   feed), OCTET (any 8-bit sequence of data), SP (space), and VCHAR (any</td><td class="lineno" valign="top"></td></tr>
236      <tr><td class="lineno" valign="top"></td><td class="left">   visible US-ASCII character).</td><td> </td><td class="right">   visible US-ASCII character).</td><td class="lineno" valign="top"></td></tr>
237      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
238      <tr><td class="lineno" valign="top"></td><td class="left">1.2.1.  Core Rules</td><td> </td><td class="right">1.2.1.  Core Rules</td><td class="lineno" valign="top"></td></tr>
239      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
240      <tr><td class="lineno" valign="top"></td><td class="left">   The core rules below are defined in [Part1]:</td><td> </td><td class="right">   The core rules below are defined in [Part1]:</td><td class="lineno" valign="top"></td></tr>
241      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
242      <tr><td><a name="diff0012" /></td></tr>
243      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">     BWS           = &lt;BWS, defined in [Part1], Section 1.2.2&gt;</span></td><td class="lineno" valign="top"></td></tr>
244      <tr><td class="lineno" valign="top"></td><td class="left">     OWS           = &lt;OWS, defined in [Part1], Section 1.2.2&gt;</td><td> </td><td class="right">     OWS           = &lt;OWS, defined in [Part1], Section 1.2.2&gt;</td><td class="lineno" valign="top"></td></tr>
245      <tr><td class="lineno" valign="top"></td><td class="left">     RWS           = &lt;RWS, defined in [Part1], Section 1.2.2&gt;</td><td> </td><td class="right">     RWS           = &lt;RWS, defined in [Part1], Section 1.2.2&gt;</td><td class="lineno" valign="top"></td></tr>
246      <tr><td class="lineno" valign="top"></td><td class="left">     obs-text      = &lt;obs-text, defined in [Part1], Section 1.2.2&gt;</td><td> </td><td class="right">     obs-text      = &lt;obs-text, defined in [Part1], Section 1.2.2&gt;</td><td class="lineno" valign="top"></td></tr>
247      <tr><td class="lineno" valign="top"></td><td class="left">     quoted-string = &lt;quoted-string, defined in [Part1], Section 3.2.3&gt;</td><td> </td><td class="right">     quoted-string = &lt;quoted-string, defined in [Part1], Section 3.2.3&gt;</td><td class="lineno" valign="top"></td></tr>
248      <tr><td class="lineno" valign="top"></td><td class="left">     token         = &lt;token, defined in [Part1], Section 3.2.3&gt;</td><td> </td><td class="right">     token         = &lt;token, defined in [Part1], Section 3.2.3&gt;</td><td class="lineno" valign="top"></td></tr>
249      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
250      <tr><td class="lineno" valign="top"></td><td class="left">1.2.2.  ABNF Rules defined in other Parts of the Specification</td><td> </td><td class="right">1.2.2.  ABNF Rules defined in other Parts of the Specification</td><td class="lineno" valign="top"></td></tr>
251      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
252      <tr><td class="lineno" valign="top"></td><td class="left">   The ABNF rules below are defined in other parts:</td><td> </td><td class="right">   The ABNF rules below are defined in other parts:</td><td class="lineno" valign="top"></td></tr>
253      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
254      <tr><td class="lineno"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno"></td></tr>
255      <tr bgcolor="gray" ><td></td><th><a name="part-l7" /><small>skipping to change at</small><em> page 10, line 22</em></th><th> </th><th><a name="part-r7" /><small>skipping to change at</small><em> page 10, line 24</em></th><td></td></tr>
256      <tr><td class="lineno" valign="top"></td><td class="left">   comma are protected with double-quotes using the quoted-string ABNF</td><td> </td><td class="right">   comma are protected with double-quotes using the quoted-string ABNF</td><td class="lineno" valign="top"></td></tr>
257      <tr><td class="lineno" valign="top"></td><td class="left">   production (Section 3.2.3 of [Part1]).</td><td> </td><td class="right">   production (Section 3.2.3 of [Part1]).</td><td class="lineno" valign="top"></td></tr>
258      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
259      <tr><td class="lineno" valign="top"></td><td class="left">   For example, a textual date and a URI (either of which might contain</td><td> </td><td class="right">   For example, a textual date and a URI (either of which might contain</td><td class="lineno" valign="top"></td></tr>
260      <tr><td class="lineno" valign="top"></td><td class="left">   a comma) could be safely carried in field-values like these:</td><td> </td><td class="right">   a comma) could be safely carried in field-values like these:</td><td class="lineno" valign="top"></td></tr>
261      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
262      <tr><td class="lineno" valign="top"></td><td class="left">     Example-URI-Field: "http://example.com/a.html,foo",</td><td> </td><td class="right">     Example-URI-Field: "http://example.com/a.html,foo",</td><td class="lineno" valign="top"></td></tr>
263      <tr><td class="lineno" valign="top"></td><td class="left">                        "http://without-a-comma.example.com/"</td><td> </td><td class="right">                        "http://without-a-comma.example.com/"</td><td class="lineno" valign="top"></td></tr>
264      <tr><td class="lineno" valign="top"></td><td class="left">     Example-Date-Field: "Sat, 04 May 1996", "Wed, 14 Sep 2005"</td><td> </td><td class="right">     Example-Date-Field: "Sat, 04 May 1996", "Wed, 14 Sep 2005"</td><td class="lineno" valign="top"></td></tr>
265      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
266      <tr><td><a name="diff0013" /></td></tr>
267      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock">   <span class="insert">Note that double quote delimiters almost always are used with the</span></td><td class="lineno" valign="top"></td></tr>
268      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">   quoted-string production; using a different syntax inside double</span></td><td class="lineno" valign="top"></td></tr>
269      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">   quotes will likely cause unnecessary confusion.</span></td><td class="lineno" valign="top"></td></tr>
270      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock">                                                                         </td><td class="lineno" valign="top"></td></tr>
271      <tr><td class="lineno" valign="top"></td><td class="left">   Many header fields use a format including (case-insensitively) named</td><td> </td><td class="right">   Many header fields use a format including (case-insensitively) named</td><td class="lineno" valign="top"></td></tr>
272      <tr><td class="lineno" valign="top"></td><td class="left">   parameters (for instance, Content-Type, defined in Section 6.8 of</td><td> </td><td class="right">   parameters (for instance, Content-Type, defined in Section 6.8 of</td><td class="lineno" valign="top"></td></tr>
273      <tr><td class="lineno" valign="top"></td><td class="left">   [Part3]).  Allowing both unquoted (token) and quoted (quoted-string)</td><td> </td><td class="right">   [Part3]).  Allowing both unquoted (token) and quoted (quoted-string)</td><td class="lineno" valign="top"></td></tr>
274      <tr><td class="lineno" valign="top"></td><td class="left">   syntax for the parameter value enables recipients to use existing</td><td> </td><td class="right">   syntax for the parameter value enables recipients to use existing</td><td class="lineno" valign="top"></td></tr>
275      <tr><td class="lineno" valign="top"></td><td class="left">   parser components.  When allowing both forms, the meaning of a</td><td> </td><td class="right">   parser components.  When allowing both forms, the meaning of a</td><td class="lineno" valign="top"></td></tr>
276      <tr><td class="lineno" valign="top"></td><td class="left">   parameter value ought to be independent of the syntax used for it</td><td> </td><td class="right">   parameter value ought to be independent of the syntax used for it</td><td class="lineno" valign="top"></td></tr>
277      <tr><td class="lineno" valign="top"></td><td class="left">   (for an example, see the notes on parameter handling for media types</td><td> </td><td class="right">   (for an example, see the notes on parameter handling for media types</td><td class="lineno" valign="top"></td></tr>
278      <tr><td class="lineno" valign="top"></td><td class="left">   in Section 2.3 of [Part3]).</td><td> </td><td class="right">   in Section 2.3 of [Part3]).</td><td class="lineno" valign="top"></td></tr>
279      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
280      <tr><td class="lineno" valign="top"></td><td class="left">   Authors of specifications defining new header fields are advised to</td><td> </td><td class="right">   Authors of specifications defining new header fields are advised to</td><td class="lineno" valign="top"></td></tr>
281      <tr><td class="lineno"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno"></td></tr>
282      <tr bgcolor="gray" ><td></td><th><a name="part-l8" /><small>skipping to change at</small><em> page 30, line 36</em></th><th> </th><th><a name="part-r8" /><small>skipping to change at</small><em> page 30, line 36</em></th><td></td></tr>
283      <tr><td class="lineno" valign="top"></td><td class="left">      type of redirect with the status code 303 (See Other) ([RFC2068],</td><td> </td><td class="right">      type of redirect with the status code 303 (See Other) ([RFC2068],</td><td class="lineno" valign="top"></td></tr>
284      <tr><td class="lineno" valign="top"></td><td class="left">      Section 10.3.4).  As user agents did not change their behavior to</td><td> </td><td class="right">      Section 10.3.4).  As user agents did not change their behavior to</td><td class="lineno" valign="top"></td></tr>
285      <tr><td class="lineno" valign="top"></td><td class="left">      maintain backwards compatibility, the first revision of HTTP/1.1</td><td> </td><td class="right">      maintain backwards compatibility, the first revision of HTTP/1.1</td><td class="lineno" valign="top"></td></tr>
286      <tr><td class="lineno" valign="top"></td><td class="left">      added yet another status code, 307 (Temporary Redirect), for which</td><td> </td><td class="right">      added yet another status code, 307 (Temporary Redirect), for which</td><td class="lineno" valign="top"></td></tr>
287      <tr><td class="lineno" valign="top"></td><td class="left">      the backwards compatibility problems did not apply ([RFC2616],</td><td> </td><td class="right">      the backwards compatibility problems did not apply ([RFC2616],</td><td class="lineno" valign="top"></td></tr>
288      <tr><td class="lineno" valign="top"></td><td class="left">      Section 10.3.8).  Over 10 years later, most user agents still do</td><td> </td><td class="right">      Section 10.3.8).  Over 10 years later, most user agents still do</td><td class="lineno" valign="top"></td></tr>
289      <tr><td class="lineno" valign="top"></td><td class="left">      method rewriting for status codes 301 and 302, therefore this</td><td> </td><td class="right">      method rewriting for status codes 301 and 302, therefore this</td><td class="lineno" valign="top"></td></tr>
290      <tr><td class="lineno" valign="top"></td><td class="left">      specification makes that behavior compliant in case the original</td><td> </td><td class="right">      specification makes that behavior compliant in case the original</td><td class="lineno" valign="top"></td></tr>
291      <tr><td class="lineno" valign="top"></td><td class="left">      request was POST.</td><td> </td><td class="right">      request was POST.</td><td class="lineno" valign="top"></td></tr>
292      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
293      <tr><td><a name="diff0014" /></td></tr>
294      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock">   <span class="insert">A Location header field on a 3xx response indicates that a client MAY</span></td><td class="lineno" valign="top"></td></tr>
295      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">   automatically redirect to the URI provided; see Section 9.5.</span></td><td class="lineno" valign="top"></td></tr>
296      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock">                                                                         </td><td class="lineno" valign="top"></td></tr>
297      <tr><td class="lineno" valign="top"></td><td class="left">   Clients SHOULD detect and intervene in cyclical redirections (i.e.,</td><td> </td><td class="right">   Clients SHOULD detect and intervene in cyclical redirections (i.e.,</td><td class="lineno" valign="top"></td></tr>
298      <tr><td class="lineno" valign="top"></td><td class="left">   "infinite" redirection loops).</td><td> </td><td class="right">   "infinite" redirection loops).</td><td class="lineno" valign="top"></td></tr>
299      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
300      <tr><td class="lineno" valign="top"></td><td class="left">      Note: An earlier version of this specification recommended a</td><td> </td><td class="right">      Note: An earlier version of this specification recommended a</td><td class="lineno" valign="top"></td></tr>
301      <tr><td class="lineno" valign="top"></td><td class="left">      maximum of five redirections ([RFC2068], Section 10.3).  Content</td><td> </td><td class="right">      maximum of five redirections ([RFC2068], Section 10.3).  Content</td><td class="lineno" valign="top"></td></tr>
302      <tr><td class="lineno" valign="top"></td><td class="left">      developers need to be aware that some clients might implement such</td><td> </td><td class="right">      developers need to be aware that some clients might implement such</td><td class="lineno" valign="top"></td></tr>
303      <tr><td class="lineno" valign="top"></td><td class="left">      a fixed limitation.</td><td> </td><td class="right">      a fixed limitation.</td><td class="lineno" valign="top"></td></tr>
304      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
305      <tr><td class="lineno" valign="top"></td><td class="left">7.3.1.  300 Multiple Choices</td><td> </td><td class="right">7.3.1.  300 Multiple Choices</td><td class="lineno" valign="top"></td></tr>
306      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
307      <tr><td class="lineno"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno"></td></tr>
308      <tr bgcolor="gray" ><td></td><th><a name="part-l9" /><small>skipping to change at</small><em> page 34, line 5</em></th><th> </th><th><a name="part-r9" /><small>skipping to change at</small><em> page 34, line 5</em></th><td></td></tr>
309      <tr><td class="lineno" valign="top"></td><td class="left">   the information necessary for a user to repeat the original request</td><td> </td><td class="right">   the information necessary for a user to repeat the original request</td><td class="lineno" valign="top"></td></tr>
310      <tr><td class="lineno" valign="top"></td><td class="left">   on the new URI.</td><td> </td><td class="right">   on the new URI.</td><td class="lineno" valign="top"></td></tr>
311      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
312      <tr><td class="lineno" valign="top"></td><td class="left">   If the 307 status code is received in response to a request method</td><td> </td><td class="right">   If the 307 status code is received in response to a request method</td><td class="lineno" valign="top"></td></tr>
313      <tr><td class="lineno" valign="top"></td><td class="left">   that is known to be "safe", as defined in Section 6.1.1, then the</td><td> </td><td class="right">   that is known to be "safe", as defined in Section 6.1.1, then the</td><td class="lineno" valign="top"></td></tr>
314      <tr><td class="lineno" valign="top"></td><td class="left">   request MAY be automatically redirected by the user agent without</td><td> </td><td class="right">   request MAY be automatically redirected by the user agent without</td><td class="lineno" valign="top"></td></tr>
315      <tr><td class="lineno" valign="top"></td><td class="left">   confirmation.  Otherwise, the user agent MUST NOT automatically</td><td> </td><td class="right">   confirmation.  Otherwise, the user agent MUST NOT automatically</td><td class="lineno" valign="top"></td></tr>
316      <tr><td class="lineno" valign="top"></td><td class="left">   redirect the request unless it can be confirmed by the user, since</td><td> </td><td class="right">   redirect the request unless it can be confirmed by the user, since</td><td class="lineno" valign="top"></td></tr>
317      <tr><td class="lineno" valign="top"></td><td class="left">   this might change the conditions under which the request was issued.</td><td> </td><td class="right">   this might change the conditions under which the request was issued.</td><td class="lineno" valign="top"></td></tr>
318      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
319      <tr><td><a name="diff0015" /></td></tr>
320      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock">      <span class="insert">Note: This status code is similar to 302 Found, except that it</span></td><td class="lineno" valign="top"></td></tr>
321      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">      does not allow rewriting the request method from POST to GET.</span></td><td class="lineno" valign="top"></td></tr>
322      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">      This specification defines no equivalent counterpart for 301 Moved</span></td><td class="lineno" valign="top"></td></tr>
323      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">      Permanently.</span></td><td class="lineno" valign="top"></td></tr>
324      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock">                                                                         </td><td class="lineno" valign="top"></td></tr>
325      <tr><td class="lineno" valign="top"></td><td class="left">7.4.  Client Error 4xx</td><td> </td><td class="right">7.4.  Client Error 4xx</td><td class="lineno" valign="top"></td></tr>
326      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
327      <tr><td class="lineno" valign="top"></td><td class="left">   The 4xx class of status code is intended for cases in which the</td><td> </td><td class="right">   The 4xx class of status code is intended for cases in which the</td><td class="lineno" valign="top"></td></tr>
328      <tr><td class="lineno" valign="top"></td><td class="left">   client seems to have erred.  Except when responding to a HEAD</td><td> </td><td class="right">   client seems to have erred.  Except when responding to a HEAD</td><td class="lineno" valign="top"></td></tr>
329      <tr><td class="lineno" valign="top"></td><td class="left">   request, the server SHOULD include a representation containing an</td><td> </td><td class="right">   request, the server SHOULD include a representation containing an</td><td class="lineno" valign="top"></td></tr>
330      <tr><td class="lineno" valign="top"></td><td class="left">   explanation of the error situation, and whether it is a temporary or</td><td> </td><td class="right">   explanation of the error situation, and whether it is a temporary or</td><td class="lineno" valign="top"></td></tr>
331      <tr><td class="lineno" valign="top"></td><td class="left">   permanent condition.  These status codes are applicable to any</td><td> </td><td class="right">   permanent condition.  These status codes are applicable to any</td><td class="lineno" valign="top"></td></tr>
332      <tr><td class="lineno" valign="top"></td><td class="left">   request method.  User agents SHOULD display any included</td><td> </td><td class="right">   request method.  User agents SHOULD display any included</td><td class="lineno" valign="top"></td></tr>
333      <tr><td class="lineno" valign="top"></td><td class="left">   representation to the user.</td><td> </td><td class="right">   representation to the user.</td><td class="lineno" valign="top"></td></tr>
334      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
335      <tr><td class="lineno"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno"></td></tr>
336      <tr bgcolor="gray" ><td></td><th><a name="part-l10" /><small>skipping to change at</small><em> page 39, line 20</em></th><th> </th><th><a name="part-r10" /><small>skipping to change at</small><em> page 39, line 20</em></th><td></td></tr>
337      <tr><td class="lineno" valign="top"></td><td class="left">   any resource.</td><td> </td><td class="right">   any resource.</td><td class="lineno" valign="top"></td></tr>
338      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
339      <tr><td class="lineno" valign="top"></td><td class="left">7.5.3.  502 Bad Gateway</td><td> </td><td class="right">7.5.3.  502 Bad Gateway</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">   The server, while acting as a gateway or proxy, received an invalid</td><td> </td><td class="right">   The server, while acting as a gateway or proxy, received an invalid</td><td class="lineno" valign="top"></td></tr>
342      <tr><td class="lineno" valign="top"></td><td class="left">   response from the upstream server it accessed in attempting to</td><td> </td><td class="right">   response from the upstream server it accessed in attempting to</td><td class="lineno" valign="top"></td></tr>
343      <tr><td class="lineno" valign="top"></td><td class="left">   fulfill the request.</td><td> </td><td class="right">   fulfill the request.</td><td class="lineno" valign="top"></td></tr>
344      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
345      <tr><td class="lineno" valign="top"></td><td class="left">7.5.4.  503 Service Unavailable</td><td> </td><td class="right">7.5.4.  503 Service Unavailable</td><td class="lineno" valign="top"></td></tr>
346      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
347      <tr><td><a name="diff0016" /></td></tr>
348      <tr><td class="lineno" valign="top"></td><td class="lblock">   The server is currently unable <span class="delete">or unwilling</span> to handle the request due</td><td> </td><td class="rblock">   The server is currently unable to handle the request due to <span class="insert">a</span></td><td class="lineno" valign="top"></td></tr>
349      <tr><td class="lineno" valign="top"></td><td class="lblock">   to <span class="delete">reasons such as</span> temporary <span class="delete">overloading, maintenance of the server,</span></td><td> </td><td class="rblock">   temporary <span class="insert">overloading</span> or <span class="insert">maintenance</span> of the <span class="insert">server.</span></td><td class="lineno" valign="top"></td></tr>
350      <tr><td class="lineno" valign="top"></td><td class="lblock">   or <span class="delete">rate limiting</span> of the <span class="delete">client.</span></td><td> </td><td class="rblock"></td><td class="lineno" valign="top"></td></tr>
351      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
352      <tr><td class="lineno" valign="top"></td><td class="left">   The implication is that this is a temporary condition which will be</td><td> </td><td class="right">   The implication is that this is a temporary condition which will be</td><td class="lineno" valign="top"></td></tr>
353      <tr><td class="lineno" valign="top"></td><td class="left">   alleviated after some delay.  If known, the length of the delay MAY</td><td> </td><td class="right">   alleviated after some delay.  If known, the length of the delay MAY</td><td class="lineno" valign="top"></td></tr>
354      <tr><td class="lineno" valign="top"></td><td class="left">   be indicated in a Retry-After header field (Section 9.8).  If no</td><td> </td><td class="right">   be indicated in a Retry-After header field (Section 9.8).  If no</td><td class="lineno" valign="top"></td></tr>
355      <tr><td class="lineno" valign="top"></td><td class="left">   Retry-After is given, the client SHOULD handle the response as it</td><td> </td><td class="right">   Retry-After is given, the client SHOULD handle the response as it</td><td class="lineno" valign="top"></td></tr>
356      <tr><td class="lineno" valign="top"></td><td class="left">   would for a 500 response.</td><td> </td><td class="right">   would for a 500 response.</td><td class="lineno" valign="top"></td></tr>
357      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
358      <tr><td class="lineno" valign="top"></td><td class="left">      Note: The existence of the 503 status code does not imply that a</td><td> </td><td class="right">      Note: The existence of the 503 status code does not imply that a</td><td class="lineno" valign="top"></td></tr>
359      <tr><td class="lineno" valign="top"></td><td class="left">      server must use it when becoming overloaded.  Some servers might</td><td> </td><td class="right">      server must use it when becoming overloaded.  Some servers might</td><td class="lineno" valign="top"></td></tr>
360      <tr><td class="lineno" valign="top"></td><td class="left">      wish to simply refuse the connection.</td><td> </td><td class="right">      wish to simply refuse the connection.</td><td class="lineno" valign="top"></td></tr>
361      <tr><td class="lineno"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno"></td></tr>
362      <tr bgcolor="gray" ><td></td><th><a name="part-l11" /><small>skipping to change at</small><em> page 44, line 15</em></th><th> </th><th><a name="part-r11" /><small>skipping to change at</small><em> page 44, line 15</em></th><td></td></tr>
363      <tr><td class="lineno" valign="top"></td><td class="left">   In practice, the date can be generated at any time during the message</td><td> </td><td class="right">   In practice, the date can be generated at any time during the message</td><td class="lineno" valign="top"></td></tr>
364      <tr><td class="lineno" valign="top"></td><td class="left">   origination without affecting its semantic value.</td><td> </td><td class="right">   origination without affecting its semantic value.</td><td class="lineno" valign="top"></td></tr>
365      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
366      <tr><td class="lineno" valign="top"></td><td class="left">9.3.  Expect</td><td> </td><td class="right">9.3.  Expect</td><td class="lineno" valign="top"></td></tr>
367      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
368      <tr><td class="lineno" valign="top"></td><td class="left">   The "Expect" header field is used to indicate that particular server</td><td> </td><td class="right">   The "Expect" header field is used to indicate that particular server</td><td class="lineno" valign="top"></td></tr>
369      <tr><td class="lineno" valign="top"></td><td class="left">   behaviors are required by the client.</td><td> </td><td class="right">   behaviors are required by the client.</td><td class="lineno" valign="top"></td></tr>
370      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
371      <tr><td class="lineno" valign="top"></td><td class="left">     Expect       = 1#expectation</td><td> </td><td class="right">     Expect       = 1#expectation</td><td class="lineno" valign="top"></td></tr>
372      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
373      <tr><td><a name="diff0017" /></td></tr>
374      <tr><td class="lineno" valign="top"></td><td class="lblock">     expectation  = <span class="delete">"100-continue" / expectation-extension</span></td><td> </td><td class="rblock">     expectation  = <span class="insert">expect-name</span> [ <span class="insert">BWS</span> "=" <span class="insert">BWS expect-value</span> ]</td><td class="lineno" valign="top"></td></tr>
375      <tr><td class="lineno" valign="top"></td><td class="lblock"><span class="delete">     expectation-extension = token</span> [ "=" <span class="delete">( token / quoted-string )</span></td><td> </td><td class="rblock">                                <span class="insert">*( OWS</span> ";" [ <span class="insert">OWS expect-param ]</span> )</td><td class="lineno" valign="top"></td></tr>
376      <tr><td class="lineno" valign="top"></td><td class="lblock"><span class="delete">                              *expect-params</span> ]</td><td> </td><td class="rblock">     <span class="insert">expect-param = expect-name [ BWS "=" BWS expect-value</span> ]</td><td class="lineno" valign="top"></td></tr>
377      <tr><td class="lineno" valign="top"></td><td class="lblock">     <span class="delete">expect-params =</span> ";" <span class="delete">token</span> [ <span class="delete">"=" ( token / quoted-string</span> ) ]</td><td> </td><td class="rblock"></td><td class="lineno" valign="top"></td></tr>
378      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
379      <tr><td><a name="diff0018" /></td></tr>
380      <tr><td class="lineno" valign="top"></td><td class="lblock">   <span class="delete">A server that does not understand or is unable to comply with any of</span></td><td> </td><td class="rblock">     <span class="insert">expect-name  = token</span></td><td class="lineno" valign="top"></td></tr>
381      <tr><td class="lineno" valign="top"></td><td class="lblock"><span class="delete">   the expectation values in the Expect field of a request MUST respond</span></td><td> </td><td class="rblock"><span class="insert">     expect-value = token / quoted-string</span></td><td class="lineno" valign="top"></td></tr>
382      <tr><td class="lineno" valign="top"></td><td class="lblock"><span class="delete">   with appropriate error status code.  The server MUST respond with a</span></td><td> </td><td class="rblock"></td><td class="lineno" valign="top"></td></tr>
383      <tr><td class="lineno" valign="top"></td><td class="lblock"><span class="delete">   417 (Expectation Failed) status code if any of the expectations</span></td><td> </td><td class="rblock"></td><td class="lineno" valign="top"></td></tr>
384      <tr><td class="lineno" valign="top"></td><td class="lblock"><span class="delete">   cannot be met or, if there are other problems with the request, some</span></td><td> </td><td class="rblock"></td><td class="lineno" valign="top"></td></tr>
385      <tr><td class="lineno" valign="top"></td><td class="lblock"><span class="delete">   other 4xx status code.</span></td><td> </td><td class="rblock"></td><td class="lineno" valign="top"></td></tr>
386      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
387      <tr><td><a name="diff0019" /></td></tr>
388      <tr><td class="lineno" valign="top"></td><td class="lblock">   <span class="delete">This header field is defined with extensible syntax to allow for</span></td><td> </td><td class="rblock">   If <span class="insert">all received</span> Expect <span class="insert">header field(s) are syntactically valid but</span></td><td class="lineno" valign="top"></td></tr>
389      <tr><td class="lineno" valign="top"></td><td class="lblock"><span class="delete">   future extensions.</span>  If <span class="delete">a server receives a request containing an</span></td><td> </td><td class="rblock"><span class="insert">   contain</span> an <span class="insert">expectation</span> that <span class="insert">the recipient</span> does not <span class="insert">understand or</span></td><td class="lineno" valign="top"></td></tr>
390      <tr><td class="lineno" valign="top"></td><td class="lblock">   Expect <span class="delete">field that includes</span> an <span class="delete">expectation-extension</span> that <span class="delete">it</span> does not</td><td> </td><td class="rblock"><span class="insert">   cannot comply with, the recipient</span> MUST respond with a 417</td><td class="lineno" valign="top"></td></tr>
391      <tr><td class="lineno" valign="top"></td><td class="lblock">   <span class="delete">support, it</span> MUST respond with a 417 (Expectation Failed) status code.</td><td> </td><td class="rblock">   (Expectation Failed) status code.  <span class="insert">A recipient of a syntactically</span></td><td class="lineno" valign="top"></td></tr>
392      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">   invalid Expectation header field MUST respond with a 4xx status code</span></td><td class="lineno" valign="top"></td></tr>
393      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">   other than 417.</span></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><a name="diff0020" /></td></tr>
396      <tr><td class="lineno" valign="top"></td><td class="lblock">   <span class="delete">Comparison of</span> expectation <span class="delete">values is case-insensitive for unquoted</span></td><td> </td><td class="rblock">   <span class="insert">The only</span> expectation <span class="insert">defined by this specification is:</span></td><td class="lineno" valign="top"></td></tr>
397      <tr><td class="lineno" valign="top"></td><td class="lblock"><span class="delete">   tokens (including the 100-continue token), and is case-sensitive for</span></td><td> </td><td class="rblock"></td><td class="lineno" valign="top"></td></tr>
398      <tr><td class="lineno" valign="top"></td><td class="lblock"><span class="delete">   quoted-string expectation-extensions.</span></td><td> </td><td class="rblock"></td><td class="lineno" valign="top"></td></tr>
399      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
400      <tr><td><a name="diff0021" /></td></tr>
401      <tr><td class="lineno" valign="top"></td><td class="lblock">   The Expect mechanism is hop-by-hop: <span class="delete">that is, an HTTP/1.1 proxy MUST</span></td><td> </td><td class="rblock">   <span class="insert">100-continue</span></td><td class="lineno" valign="top"></td></tr>
402      <tr><td class="lineno" valign="top"></td><td class="lblock"><span class="delete">   return a 417 (Expectation Failed) status code if it receives a</span></td><td> </td><td class="rblock"><span class="insert"></span></td><td class="lineno" valign="top"></td></tr>
403      <tr><td class="lineno" valign="top"></td><td class="lblock"><span class="delete">   request with an expectation that it cannot meet.</span>  However, the Expect</td><td> </td><td class="rblock"><span class="insert">      The "100-continue" expectation is defined Section 6.2.3 of</span></td><td class="lineno" valign="top"></td></tr>
404      <tr><td class="lineno" valign="top"></td><td class="lblock">   header field itself is end-to-end; it MUST be forwarded if the</td><td> </td><td class="rblock"><span class="insert">      [Part1].  It does not support any expect-params.</span></td><td class="lineno" valign="top"></td></tr>
405      <tr><td class="lineno" valign="top"></td><td class="lblock">   request is forwarded.</td><td> </td><td class="rblock"><span class="insert"></span></td><td class="lineno" valign="top"></td></tr>
406      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">   Comparison is case-insensitive for names (expect-name), and case-</span></td><td class="lineno" valign="top"></td></tr>
407      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">   sensitive for values (expect-value).</span></td><td class="lineno" valign="top"></td></tr>
408      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock">                                                                         </td><td class="lineno" valign="top"></td></tr>
409      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock">   The Expect mechanism is hop-by-hop: <span class="insert">the above requirements apply to</span></td><td class="lineno" valign="top"></td></tr>
410      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">   any server, including proxies.</span>  However, the Expect header field</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">   itself is end-to-end; it MUST be forwarded if the request is</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">   forwarded.</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 class="lineno" valign="top"></td><td class="left">   Many older HTTP/1.0 and HTTP/1.1 applications do not understand the</td><td> </td><td class="right">   Many older HTTP/1.0 and HTTP/1.1 applications do not understand the</td><td class="lineno" valign="top"></td></tr>
415      <tr><td class="lineno" valign="top"></td><td class="left">   Expect header field.</td><td> </td><td class="right">   Expect header field.</td><td class="lineno" valign="top"></td></tr>
416      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
417      <tr><td><a name="diff0022" /></td></tr>
418      <tr><td class="lineno" valign="top"></td><td class="lblock">   <span class="delete">See Section 6.2.3 of [Part1] for the use of the 100 (Continue) status</span></td><td> </td><td class="rblock"></td><td class="lineno" valign="top"></td></tr>
419      <tr><td class="lineno" valign="top"></td><td class="lblock"><span class="delete">   code.</span></td><td> </td><td class="rblock"></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"></td><td class="lineno" valign="top"></td></tr>
421      <tr><td class="lineno" valign="top"></td><td class="left">9.4.  From</td><td> </td><td class="right">9.4.  From</td><td class="lineno" valign="top"></td></tr>
422      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
423      <tr><td class="lineno" valign="top"></td><td class="left">   The "From" header field, if given, SHOULD contain an Internet e-mail</td><td> </td><td class="right">   The "From" header field, if given, SHOULD contain an Internet e-mail</td><td class="lineno" valign="top"></td></tr>
424      <tr><td class="lineno" valign="top"></td><td class="left">   address for the human user who controls the requesting user agent.</td><td> </td><td class="right">   address for the human user who controls the requesting user agent.</td><td class="lineno" valign="top"></td></tr>
425      <tr><td class="lineno" valign="top"></td><td class="left">   The address SHOULD be machine-usable, as defined by "mailbox" in</td><td> </td><td class="right">   The address SHOULD be machine-usable, as defined by "mailbox" in</td><td class="lineno" valign="top"></td></tr>
426      <tr><td class="lineno" valign="top"></td><td class="left">   Section 3.4 of [RFC5322]:</td><td> </td><td class="right">   Section 3.4 of [RFC5322]:</td><td class="lineno" valign="top"></td></tr>
427      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
428      <tr><td class="lineno" valign="top"></td><td class="left">     From    = mailbox</td><td> </td><td class="right">     From    = mailbox</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">     mailbox = &lt;mailbox, defined in [RFC5322], Section 3.4&gt;</td><td> </td><td class="right">     mailbox = &lt;mailbox, defined in [RFC5322], Section 3.4&gt;</td><td class="lineno" valign="top"></td></tr>
431      <tr><td class="lineno"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno"></td></tr>
432      <tr bgcolor="gray" ><td></td><th><a name="part-l12" /><small>skipping to change at</small><em> page 46, line 11</em></th><th> </th><th><a name="part-r12" /><small>skipping to change at</small><em> page 46, line 11</em></th><td></td></tr>
433      <tr><td class="lineno" valign="top"></td><td class="left">   ([RFC3986], Section 5).</td><td> </td><td class="right">   ([RFC3986], Section 5).</td><td class="lineno" valign="top"></td></tr>
434      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
435      <tr><td class="lineno" valign="top"></td><td class="left">     Location = URI-reference</td><td> </td><td class="right">     Location = URI-reference</td><td class="lineno" valign="top"></td></tr>
436      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
437      <tr><td class="lineno" valign="top"></td><td class="left">   Examples are:</td><td> </td><td class="right">   Examples are:</td><td class="lineno" valign="top"></td></tr>
438      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
439      <tr><td class="lineno" valign="top"></td><td class="left">     Location: http://www.example.org/pub/WWW/People.html#tim</td><td> </td><td class="right">     Location: http://www.example.org/pub/WWW/People.html#tim</td><td class="lineno" valign="top"></td></tr>
440      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
441      <tr><td class="lineno" valign="top"></td><td class="left">     Location: /index.html</td><td> </td><td class="right">     Location: /index.html</td><td class="lineno" valign="top"></td></tr>
442      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
443      <tr><td><a name="diff0023" /></td></tr>
444      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock">      <span class="insert">Note: Some recipients attempt to recover from Location fields that</span></td><td class="lineno" valign="top"></td></tr>
445      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">      are not valid URI references.  This specification does not mandate</span></td><td class="lineno" valign="top"></td></tr>
446      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">      or define such processing, but does allow it (see Section 1.1).</span></td><td class="lineno" valign="top"></td></tr>
447      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock">                                                                         </td><td class="lineno" valign="top"></td></tr>
448      <tr><td class="lineno" valign="top"></td><td class="left">   There are circumstances in which a fragment identifier in a Location</td><td> </td><td class="right">   There are circumstances in which a fragment identifier in a Location</td><td class="lineno" valign="top"></td></tr>
449      <tr><td class="lineno" valign="top"></td><td class="left">   URI would not be appropriate.  For instance, when it appears in a 201</td><td> </td><td class="right">   URI would not be appropriate.  For instance, when it appears in a 201</td><td class="lineno" valign="top"></td></tr>
450      <tr><td class="lineno" valign="top"></td><td class="left">   Created response, where the Location header field specifies the URI</td><td> </td><td class="right">   Created response, where the Location header field specifies the URI</td><td class="lineno" valign="top"></td></tr>
451      <tr><td class="lineno" valign="top"></td><td class="left">   for the entire created resource.</td><td> </td><td class="right">   for the entire created resource.</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">      Note: This specification does not define precedence rules for the</td><td> </td><td class="right">      Note: This specification does not define precedence rules for the</td><td class="lineno" valign="top"></td></tr>
454      <tr><td class="lineno" valign="top"></td><td class="left">      case where the original URI, as navigated to by the user agent,</td><td> </td><td class="right">      case where the original URI, as navigated to by the user agent,</td><td class="lineno" valign="top"></td></tr>
455      <tr><td class="lineno" valign="top"></td><td class="left">      and the Location header field value both contain fragment</td><td> </td><td class="right">      and the Location header field value both contain fragment</td><td class="lineno" valign="top"></td></tr>
456      <tr><td class="lineno" valign="top"></td><td class="left">      identifiers.  Thus be aware that including fragment identifiers</td><td> </td><td class="right">      identifiers.  Thus be aware that including fragment identifiers</td><td class="lineno" valign="top"></td></tr>
457      <tr><td class="lineno" valign="top"></td><td class="left">      might inconvenience anyone relying on the semantics of the</td><td> </td><td class="right">      might inconvenience anyone relying on the semantics of the</td><td class="lineno" valign="top"></td></tr>
458      <tr><td class="lineno"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno"></td></tr>
459      <tr bgcolor="gray" ><td></td><th><a name="part-l13" /><small>skipping to change at</small><em> page 53, line 43</em></th><th> </th><th><a name="part-r13" /><small>skipping to change at</small><em> page 54, line 37</em></th><td></td></tr>
460      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
461      <tr><td class="lineno" valign="top"></td><td class="left">   See Section 11 of [Part1].</td><td> </td><td class="right">   See Section 11 of [Part1].</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">13.  References</td><td> </td><td class="right">13.  References</td><td class="lineno" valign="top"></td></tr>
464      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
465      <tr><td class="lineno" valign="top"></td><td class="left">13.1.  Normative References</td><td> </td><td class="right">13.1.  Normative References</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">   [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>
468      <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>
469      <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>
470      <tr><td><a name="diff0024" /></td></tr>
471      <tr><td class="lineno" valign="top"></td><td class="lblock">              and Message Parsing", <span class="delete">draft-ietf-httpbis-p1-messaging-17</span></td><td> </td><td class="rblock">              and Message Parsing", <span class="insert">draft-ietf-httpbis-p1-messaging-18</span></td><td class="lineno" valign="top"></td></tr>
472      <tr><td class="lineno" valign="top"></td><td class="lblock">              (work in progress), <span class="delete">October 2011.</span></td><td> </td><td class="rblock">              (work in progress), <span class="insert">January 2012.</span></td><td class="lineno" valign="top"></td></tr>
473      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
474      <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>
475      <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>
476      <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>
477      <tr><td><a name="diff0025" /></td></tr>
478      <tr><td class="lineno" valign="top"></td><td class="lblock">              and Content Negotiation", <span class="delete">draft-ietf-httpbis-p3-payload-17</span></td><td> </td><td class="rblock">              and Content Negotiation", <span class="insert">draft-ietf-httpbis-p3-payload-18</span></td><td class="lineno" valign="top"></td></tr>
479      <tr><td class="lineno" valign="top"></td><td class="lblock">              (work in progress), <span class="delete">October 2011.</span></td><td> </td><td class="rblock">              (work in progress), <span class="insert">January 2012.</span></td><td class="lineno" valign="top"></td></tr>
480      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
481      <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>
482      <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>
483      <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>
484      <tr><td><a name="diff0026" /></td></tr>
485      <tr><td class="lineno" valign="top"></td><td class="lblock">              Requests", <span class="delete">draft-ietf-httpbis-p4-conditional-17</span> (work in</td><td> </td><td class="rblock">              Requests", <span class="insert">draft-ietf-httpbis-p4-conditional-18</span> (work in</td><td class="lineno" valign="top"></td></tr>
486      <tr><td class="lineno" valign="top"></td><td class="lblock">              progress), <span class="delete">October 2011.</span></td><td> </td><td class="rblock">              progress), <span class="insert">January 2012.</span></td><td class="lineno" valign="top"></td></tr>
487      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
488      <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>
489      <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>
490      <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>
491      <tr><td><a name="diff0027" /></td></tr>
492      <tr><td class="lineno" valign="top"></td><td class="lblock">              Partial Responses", <span class="delete">draft-ietf-httpbis-p5-range-17</span> (work</td><td> </td><td class="rblock">              Partial Responses", <span class="insert">draft-ietf-httpbis-p5-range-18</span> (work</td><td class="lineno" valign="top"></td></tr>
493      <tr><td class="lineno" valign="top"></td><td class="lblock">              in progress), <span class="delete">October 2011.</span></td><td> </td><td class="rblock">              in progress), <span class="insert">January 2012.</span></td><td class="lineno" valign="top"></td></tr>
494      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
495      <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>
496      <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>
497      <tr><td class="lineno" valign="top"></td><td class="left">              Nottingham, M., Ed., and J. Reschke, Ed., "HTTP/1.1, part</td><td> </td><td class="right">              Nottingham, M., Ed., and J. Reschke, Ed., "HTTP/1.1, part</td><td class="lineno" valign="top"></td></tr>
498      <tr><td><a name="diff0028" /></td></tr>
499      <tr><td class="lineno" valign="top"></td><td class="lblock">              6: Caching", <span class="delete">draft-ietf-httpbis-p6-cache-17</span> (work in</td><td> </td><td class="rblock">              6: Caching", <span class="insert">draft-ietf-httpbis-p6-cache-18</span> (work in</td><td class="lineno" valign="top"></td></tr>
500      <tr><td class="lineno" valign="top"></td><td class="lblock">              progress), <span class="delete">October 2011.</span></td><td> </td><td class="rblock">              progress), <span class="insert">January 2012.</span></td><td class="lineno" valign="top"></td></tr>
501      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
502      <tr><td class="lineno" valign="top"></td><td class="left">   [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>
503      <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>
504      <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>
505      <tr><td><a name="diff0029" /></td></tr>
506      <tr><td class="lineno" valign="top"></td><td class="lblock">              <span class="delete">draft-ietf-httpbis-p7-auth-17</span> (work in progress),</td><td> </td><td class="rblock">              <span class="insert">draft-ietf-httpbis-p7-auth-18</span> (work in progress),</td><td class="lineno" valign="top"></td></tr>
507      <tr><td class="lineno" valign="top"></td><td class="lblock">              <span class="delete">October 2011.</span></td><td> </td><td class="rblock">              <span class="insert">January 2012.</span></td><td class="lineno" valign="top"></td></tr>
508      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
509      <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>
510      <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>
511      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
512      <tr><td class="lineno" valign="top"></td><td class="left">   [RFC3986]  Berners-Lee, T., Fielding, R., and L. Masinter, "Uniform</td><td> </td><td class="right">   [RFC3986]  Berners-Lee, T., Fielding, R., and L. Masinter, "Uniform</td><td class="lineno" valign="top"></td></tr>
513      <tr><td class="lineno" valign="top"></td><td class="left">              Resource Identifier (URI): Generic Syntax", STD 66,</td><td> </td><td class="right">              Resource Identifier (URI): Generic Syntax", STD 66,</td><td class="lineno" valign="top"></td></tr>
514      <tr><td class="lineno" valign="top"></td><td class="left">              RFC 3986, January 2005.</td><td> </td><td class="right">              RFC 3986, January 2005.</td><td class="lineno" valign="top"></td></tr>
515      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
516      <tr><td class="lineno" valign="top"></td><td class="left">   [RFC5234]  Crocker, D., Ed. and P. Overell, "Augmented BNF for Syntax</td><td> </td><td class="right">   [RFC5234]  Crocker, D., Ed. and P. Overell, "Augmented BNF for Syntax</td><td class="lineno" valign="top"></td></tr>
517      <tr><td class="lineno" valign="top"></td><td class="left">              Specifications: ABNF", STD 68, RFC 5234, January 2008.</td><td> </td><td class="right">              Specifications: ABNF", STD 68, RFC 5234, January 2008.</td><td class="lineno" valign="top"></td></tr>
518      <tr><td class="lineno"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno"></td></tr>
519      <tr bgcolor="gray" ><td></td><th><a name="part-l14" /><small>skipping to change at</small><em> page 56, line 4</em></th><th> </th><th><a name="part-r14" /><small>skipping to change at</small><em> page 56, line 48</em></th><td></td></tr>
520      <tr><td class="lineno" valign="top"></td><td class="left">   able to make that determination based on the request method</td><td> </td><td class="right">   able to make that determination based on the request method</td><td class="lineno" valign="top"></td></tr>
521      <tr><td class="lineno" valign="top"></td><td class="left">   semantics.  Furthermore, allow user agents to rewrite the method from</td><td> </td><td class="right">   semantics.  Furthermore, allow user agents to rewrite the method from</td><td class="lineno" valign="top"></td></tr>
522      <tr><td class="lineno" valign="top"></td><td class="left">   POST to GET for status codes 301 and 302.  (Sections 7.3.2, 7.3.3 and</td><td> </td><td class="right">   POST to GET for status codes 301 and 302.  (Sections 7.3.2, 7.3.3 and</td><td class="lineno" valign="top"></td></tr>
523      <tr><td class="lineno" valign="top"></td><td class="left">   7.3.8)</td><td> </td><td class="right">   7.3.8)</td><td class="lineno" valign="top"></td></tr>
524      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
525      <tr><td class="lineno" valign="top"></td><td class="left">   Deprecate 305 Use Proxy status code, because user agents did not</td><td> </td><td class="right">   Deprecate 305 Use Proxy status code, because user agents did not</td><td class="lineno" valign="top"></td></tr>
526      <tr><td class="lineno" valign="top"></td><td class="left">   implement it.  It used to indicate that the target resource must be</td><td> </td><td class="right">   implement it.  It used to indicate that the target resource must be</td><td class="lineno" valign="top"></td></tr>
527      <tr><td class="lineno" valign="top"></td><td class="left">   accessed through the proxy given by the Location field.  The Location</td><td> </td><td class="right">   accessed through the proxy given by the Location field.  The Location</td><td class="lineno" valign="top"></td></tr>
528      <tr><td class="lineno" valign="top"></td><td class="left">   field gave the URI of the proxy.  The recipient was expected to</td><td> </td><td class="right">   field gave the URI of the proxy.  The recipient was expected to</td><td class="lineno" valign="top"></td></tr>
529      <tr><td class="lineno" valign="top"></td><td class="left">   repeat this single request via the proxy.  (Section 7.3.6)</td><td> </td><td class="right">   repeat this single request via the proxy.  (Section 7.3.6)</td><td class="lineno" valign="top"></td></tr>
530      <tr><td><a name="diff0030" /></td></tr>
531      <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>
532      <tr><td class="lineno" valign="top"></td><td class="left">   Define status 426 (Upgrade Required) (this was incorporated from</td><td> </td><td class="right">   Define status 426 (Upgrade Required) (this was incorporated from</td><td class="lineno" valign="top"></td></tr>
533      <tr><td class="lineno" valign="top"></td><td class="left">   [RFC2817]).  (Section 7.4.19)</td><td> </td><td class="right">   [RFC2817]).  (Section 7.4.19)</td><td class="lineno" valign="top"></td></tr>
534      <tr><td><a name="diff0031" /></td></tr>
535      <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>
536      <tr><td class="lineno" valign="top"></td><td class="left">   Change ABNF productions for header fields to only define the field</td><td> </td><td class="right">   Change ABNF productions for header fields to only define the field</td><td class="lineno" valign="top"></td></tr>
537      <tr><td class="lineno" valign="top"></td><td class="left">   value.  (Section 9)</td><td> </td><td class="right">   value.  (Section 9)</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">   Reclassify "Allow" as response header field, removing the option to</td><td> </td><td class="right">   Reclassify "Allow" as response header field, removing the option to</td><td class="lineno" valign="top"></td></tr>
540      <tr><td class="lineno" valign="top"></td><td class="left">   specify it in a PUT request.  Relax the server requirement on the</td><td> </td><td class="right">   specify it in a PUT request.  Relax the server requirement on the</td><td class="lineno" valign="top"></td></tr>
541      <tr><td class="lineno" valign="top"></td><td class="left">   contents of the Allow header field and remove requirement on clients</td><td> </td><td class="right">   contents of the Allow header field and remove requirement on clients</td><td class="lineno" valign="top"></td></tr>
542      <tr><td class="lineno" valign="top"></td><td class="left">   to always trust the header field value.  (Section 9.1)</td><td> </td><td class="right">   to always trust the header field value.  (Section 9.1)</td><td class="lineno" valign="top"></td></tr>
543      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
544      <tr><td><a name="diff0032" /></td></tr>
545      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock">   <span class="insert">The ABNF for the Expect header field has been both fixed (allowing</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">   parameters for value-less expectations as well) and simplified</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">   (allowing trailing semicolons after "100-continue" when they were</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">   invalid before).  (Section 9.3)</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">                                                                         </td><td class="lineno" valign="top"></td></tr>
550      <tr><td class="lineno" valign="top"></td><td class="left">   Correct syntax of Location header field to allow URI references</td><td> </td><td class="right">   Correct syntax of Location header field to allow URI references</td><td class="lineno" valign="top"></td></tr>
551      <tr><td class="lineno" valign="top"></td><td class="left">   (including relative references and fragments), as referred symbol</td><td> </td><td class="right">   (including relative references and fragments), as referred symbol</td><td class="lineno" valign="top"></td></tr>
552      <tr><td class="lineno" valign="top"></td><td class="left">   "absoluteURI" wasn't what was expected, and add some clarifications</td><td> </td><td class="right">   "absoluteURI" wasn't what was expected, and add some clarifications</td><td class="lineno" valign="top"></td></tr>
553      <tr><td class="lineno" valign="top"></td><td class="left">   as to when use of fragments would not be appropriate.  (Section 9.5)</td><td> </td><td class="right">   as to when use of fragments would not be appropriate.  (Section 9.5)</td><td class="lineno" valign="top"></td></tr>
554      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
555      <tr><td class="lineno" valign="top"></td><td class="left">   Restrict Max-Forwards header field to OPTIONS and TRACE (previously,</td><td> </td><td class="right">   Restrict Max-Forwards header field to OPTIONS and TRACE (previously,</td><td class="lineno" valign="top"></td></tr>
556      <tr><td class="lineno" valign="top"></td><td class="left">   extension methods could have used it as well).  (Section 9.6)</td><td> </td><td class="right">   extension methods could have used it as well).  (Section 9.6)</td><td class="lineno" valign="top"></td></tr>
557      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
558      <tr><td class="lineno" valign="top"></td><td class="left">   Allow Referer field value of "about:blank" as alternative to not</td><td> </td><td class="right">   Allow Referer field value of "about:blank" as alternative to not</td><td class="lineno" valign="top"></td></tr>
559      <tr><td class="lineno" valign="top"></td><td class="left">   specifying it.  (Section 9.7)</td><td> </td><td class="right">   specifying it.  (Section 9.7)</td><td class="lineno" valign="top"></td></tr>
560      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
561      <tr><td class="lineno" valign="top"></td><td class="left">   In the description of the Server header field, the Via field was</td><td> </td><td class="right">   In the description of the Server header field, the Via field was</td><td class="lineno" valign="top"></td></tr>
562      <tr><td class="lineno" valign="top"></td><td class="left">   described as a SHOULD.  The requirement was and is stated correctly</td><td> </td><td class="right">   described as a SHOULD.  The requirement was and is stated correctly</td><td class="lineno" valign="top"></td></tr>
563      <tr><td class="lineno" valign="top"></td><td class="left">   in the description of the Via header field in Section 8.8 of [Part1].</td><td> </td><td class="right">   in the description of the Via header field in Section 8.8 of [Part1].</td><td class="lineno" valign="top"></td></tr>
564      <tr><td class="lineno" valign="top"></td><td class="left">   (Section 9.9)</td><td> </td><td class="right">   (Section 9.9)</td><td class="lineno" valign="top"></td></tr>
565      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
566      <tr><td class="lineno" valign="top"></td><td class="left">Appendix B.  Collected ABNF</td><td> </td><td class="right">Appendix B.  Collected ABNF</td><td class="lineno" valign="top"></td></tr>
567      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
568      <tr><td class="lineno" valign="top"></td><td class="left">   Allow = [ ( "," / Method ) *( OWS "," [ OWS Method ] ) ]</td><td> </td><td class="right">   Allow = [ ( "," / Method ) *( OWS "," [ OWS Method ] ) ]</td><td class="lineno" valign="top"></td></tr>
569      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
570      <tr><td><a name="diff0033" /></td></tr>
571      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock">   <span class="insert">BWS = &lt;BWS, defined in [Part1], Section 1.2.2&gt;</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">                                                                         </td><td class="lineno" valign="top"></td></tr>
573      <tr><td class="lineno" valign="top"></td><td class="left">   Date = HTTP-date</td><td> </td><td class="right">   Date = HTTP-date</td><td class="lineno" valign="top"></td></tr>
574      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
575      <tr><td class="lineno" valign="top"></td><td class="left">   Expect = *( "," OWS ) expectation *( OWS "," [ OWS expectation ] )</td><td> </td><td class="right">   Expect = *( "," OWS ) expectation *( OWS "," [ OWS expectation ] )</td><td class="lineno" valign="top"></td></tr>
576      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
577      <tr><td class="lineno" valign="top"></td><td class="left">   From = mailbox</td><td> </td><td class="right">   From = mailbox</td><td class="lineno" valign="top"></td></tr>
578      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
579      <tr><td class="lineno" valign="top"></td><td class="left">   GMT = %x47.4D.54 ; GMT</td><td> </td><td class="right">   GMT = %x47.4D.54 ; GMT</td><td class="lineno" valign="top"></td></tr>
580      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
581      <tr><td class="lineno" valign="top"></td><td class="left">   HTTP-date = rfc1123-date / obs-date</td><td> </td><td class="right">   HTTP-date = rfc1123-date / obs-date</td><td class="lineno" valign="top"></td></tr>
582      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
583      <tr><td class="lineno"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno"></td></tr>
584      <tr bgcolor="gray" ><td></td><th><a name="part-l15" /><small>skipping to change at</small><em> page 57, line 40</em></th><th> </th><th><a name="part-r15" /><small>skipping to change at</small><em> page 58, line 44</em></th><td></td></tr>
585      <tr><td class="lineno" valign="top"></td><td class="left">    / %x53.75.6E ; Sun</td><td> </td><td class="right">    / %x53.75.6E ; Sun</td><td class="lineno" valign="top"></td></tr>
586      <tr><td class="lineno" valign="top"></td><td class="left">   day-name-l = %x4D.6F.6E.64.61.79 ; Monday</td><td> </td><td class="right">   day-name-l = %x4D.6F.6E.64.61.79 ; Monday</td><td class="lineno" valign="top"></td></tr>
587      <tr><td class="lineno" valign="top"></td><td class="left">    / %x54.75.65.73.64.61.79 ; Tuesday</td><td> </td><td class="right">    / %x54.75.65.73.64.61.79 ; Tuesday</td><td class="lineno" valign="top"></td></tr>
588      <tr><td class="lineno" valign="top"></td><td class="left">    / %x57.65.64.6E.65.73.64.61.79 ; Wednesday</td><td> </td><td class="right">    / %x57.65.64.6E.65.73.64.61.79 ; Wednesday</td><td class="lineno" valign="top"></td></tr>
589      <tr><td class="lineno" valign="top"></td><td class="left">    / %x54.68.75.72.73.64.61.79 ; Thursday</td><td> </td><td class="right">    / %x54.68.75.72.73.64.61.79 ; Thursday</td><td class="lineno" valign="top"></td></tr>
590      <tr><td class="lineno" valign="top"></td><td class="left">    / %x46.72.69.64.61.79 ; Friday</td><td> </td><td class="right">    / %x46.72.69.64.61.79 ; Friday</td><td class="lineno" valign="top"></td></tr>
591      <tr><td class="lineno" valign="top"></td><td class="left">    / %x53.61.74.75.72.64.61.79 ; Saturday</td><td> </td><td class="right">    / %x53.61.74.75.72.64.61.79 ; Saturday</td><td class="lineno" valign="top"></td></tr>
592      <tr><td class="lineno" valign="top"></td><td class="left">    / %x53.75.6E.64.61.79 ; Sunday</td><td> </td><td class="right">    / %x53.75.6E.64.61.79 ; Sunday</td><td class="lineno" valign="top"></td></tr>
593      <tr><td class="lineno" valign="top"></td><td class="left">   delta-seconds = 1*DIGIT</td><td> </td><td class="right">   delta-seconds = 1*DIGIT</td><td class="lineno" valign="top"></td></tr>
594      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
595      <tr><td><a name="diff0034" /></td></tr>
596      <tr><td class="lineno" valign="top"></td><td class="lblock">   <span class="delete">expect-params</span> = <span class="delete">";"</span> token [ "=" <span class="delete">(</span> token / quoted-string <span class="delete">) ]</span></td><td> </td><td class="rblock">   <span class="insert">expect-name</span> = token</td><td class="lineno" valign="top"></td></tr>
597      <tr><td class="lineno" valign="top"></td><td class="lblock">   expectation = <span class="delete">"100-continue" / expectation-extension</span></td><td> </td><td class="rblock">   <span class="insert">expect-param = expect-name</span> [ <span class="insert">BWS</span> "=" <span class="insert">BWS expect-value ]</span></td><td class="lineno" valign="top"></td></tr>
598      <tr><td class="lineno" valign="top"></td><td class="lblock"><span class="delete">   expectation-extension = token</span> [ "=" <span class="delete">( token / quoted-string )</span></td><td> </td><td class="rblock"><span class="insert">   expect-value =</span> token / quoted-string</td><td class="lineno" valign="top"></td></tr>
599      <tr><td class="lineno" valign="top"></td><td class="lblock"><span class="delete">    *expect-params</span> ]</td><td> </td><td class="rblock">   expectation = <span class="insert">expect-name</span> [ <span class="insert">BWS</span> "=" <span class="insert">BWS expect-value</span> ] <span class="insert">*( OWS ";" [</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">    OWS expect-param ] )</span></td><td class="lineno" valign="top"></td></tr>
601      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
602      <tr><td class="lineno" valign="top"></td><td class="left">   hour = 2DIGIT</td><td> </td><td class="right">   hour = 2DIGIT</td><td class="lineno" valign="top"></td></tr>
603      <tr><td><a name="diff0035" /></td></tr>
604      <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>
605      <tr><td class="lineno" valign="top"></td><td class="left">   mailbox = &lt;mailbox, defined in [RFC5322], Section 3.4&gt;</td><td> </td><td class="right">   mailbox = &lt;mailbox, defined in [RFC5322], Section 3.4&gt;</td><td class="lineno" valign="top"></td></tr>
606      <tr><td class="lineno" valign="top"></td><td class="left">   minute = 2DIGIT</td><td> </td><td class="right">   minute = 2DIGIT</td><td class="lineno" valign="top"></td></tr>
607      <tr><td class="lineno" valign="top"></td><td class="left">   month = %x4A.61.6E ; Jan</td><td> </td><td class="right">   month = %x4A.61.6E ; Jan</td><td class="lineno" valign="top"></td></tr>
608      <tr><td class="lineno" valign="top"></td><td class="left">    / %x46.65.62 ; Feb</td><td> </td><td class="right">    / %x46.65.62 ; Feb</td><td class="lineno" valign="top"></td></tr>
609      <tr><td class="lineno" valign="top"></td><td class="left">    / %x4D.61.72 ; Mar</td><td> </td><td class="right">    / %x4D.61.72 ; Mar</td><td class="lineno" valign="top"></td></tr>
610      <tr><td class="lineno" valign="top"></td><td class="left">    / %x41.70.72 ; Apr</td><td> </td><td class="right">    / %x41.70.72 ; Apr</td><td class="lineno" valign="top"></td></tr>
611      <tr><td class="lineno" valign="top"></td><td class="left">    / %x4D.61.79 ; May</td><td> </td><td class="right">    / %x4D.61.79 ; May</td><td class="lineno" valign="top"></td></tr>
612      <tr><td class="lineno" valign="top"></td><td class="left">    / %x4A.75.6E ; Jun</td><td> </td><td class="right">    / %x4A.75.6E ; Jun</td><td class="lineno" valign="top"></td></tr>
613      <tr><td class="lineno" valign="top"></td><td class="left">    / %x4A.75.6C ; Jul</td><td> </td><td class="right">    / %x4A.75.6C ; Jul</td><td class="lineno" valign="top"></td></tr>
614      <tr><td class="lineno" valign="top"></td><td class="left">    / %x41.75.67 ; Aug</td><td> </td><td class="right">    / %x41.75.67 ; Aug</td><td class="lineno" valign="top"></td></tr>
615      <tr><td class="lineno"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno"></td></tr>
616      <tr bgcolor="gray" ><td></td><th><a name="part-l16" /><small>skipping to change at</small><em> page 66, line 47</em></th><th> </th><th><a name="part-r16" /><small>skipping to change at</small><em> page 67, line 47</em></th><td></td></tr>
617      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
618      <tr><td class="lineno" valign="top"></td><td class="left">   o  &lt;http://tools.ietf.org/wg/httpbis/trac/ticket/186&gt;: "Document</td><td> </td><td class="right">   o  &lt;http://tools.ietf.org/wg/httpbis/trac/ticket/186&gt;: "Document</td><td class="lineno" valign="top"></td></tr>
619      <tr><td class="lineno" valign="top"></td><td class="left">      HTTP's error-handling philosophy"</td><td> </td><td class="right">      HTTP's error-handling philosophy"</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">   o  &lt;http://tools.ietf.org/wg/httpbis/trac/ticket/231&gt;:</td><td> </td><td class="right">   o  &lt;http://tools.ietf.org/wg/httpbis/trac/ticket/231&gt;:</td><td class="lineno" valign="top"></td></tr>
622      <tr><td class="lineno" valign="top"></td><td class="left">      "Considerations for new headers"</td><td> </td><td class="right">      "Considerations for new headers"</td><td class="lineno" valign="top"></td></tr>
623      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
624      <tr><td class="lineno" valign="top"></td><td class="left">   o  &lt;http://tools.ietf.org/wg/httpbis/trac/ticket/310&gt;: "clarify 303</td><td> </td><td class="right">   o  &lt;http://tools.ietf.org/wg/httpbis/trac/ticket/310&gt;: "clarify 303</td><td class="lineno" valign="top"></td></tr>
625      <tr><td class="lineno" valign="top"></td><td class="left">      redirect on HEAD"</td><td> </td><td class="right">      redirect on HEAD"</td><td class="lineno" valign="top"></td></tr>
626      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
627      <tr><td><a name="diff0036" /></td></tr>
628      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">C.19.  Since draft-ietf-httpbis-p2-semantics-17</span></td><td class="lineno" valign="top"></td></tr>
629      <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>
630      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">   Closed issues:</span></td><td class="lineno" valign="top"></td></tr>
631      <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>
632      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">   o  &lt;http://tools.ietf.org/wg/httpbis/trac/ticket/185&gt;: "Location</span></td><td class="lineno" valign="top"></td></tr>
633      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">      header payload handling"</span></td><td class="lineno" valign="top"></td></tr>
634      <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>
635      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">   o  &lt;http://tools.ietf.org/wg/httpbis/trac/ticket/255&gt;: "Clarify</span></td><td class="lineno" valign="top"></td></tr>
636      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">      status code for rate limiting" (change backed out because a new</span></td><td class="lineno" valign="top"></td></tr>
637      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">      status code is being defined for this purpose)</span></td><td class="lineno" valign="top"></td></tr>
638      <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>
639      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">   o  &lt;http://tools.ietf.org/wg/httpbis/trac/ticket/312&gt;: "should there</span></td><td class="lineno" valign="top"></td></tr>
640      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">      be a permanent variant of 307"</span></td><td class="lineno" valign="top"></td></tr>
641      <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>
642      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">   o  &lt;http://tools.ietf.org/wg/httpbis/trac/ticket/325&gt;: "When are</span></td><td class="lineno" valign="top"></td></tr>
643      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">      Location's semantics triggered?"</span></td><td class="lineno" valign="top"></td></tr>
644      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert"></span></td><td class="lineno" valign="top"></td></tr>
645      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">   o  &lt;http://tools.ietf.org/wg/httpbis/trac/ticket/327&gt;: "'expect'</span></td><td class="lineno" valign="top"></td></tr>
646      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">      grammar missing OWS"</span></td><td class="lineno" valign="top"></td></tr>
647      <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>
648      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">   o  &lt;http://tools.ietf.org/wg/httpbis/trac/ticket/329&gt;: "header field</span></td><td class="lineno" valign="top"></td></tr>
649      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">      considerations: quoted-string vs use of double quotes"</span></td><td class="lineno" valign="top"></td></tr>
650      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock">                                                                         </td><td class="lineno" valign="top"></td></tr>
651      <tr><td class="lineno" valign="top"></td><td class="left">Index</td><td> </td><td class="right">Index</td><td class="lineno" valign="top"></td></tr>
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">   1</td><td> </td><td class="right">   1</td><td class="lineno" valign="top"></td></tr>
654      <tr><td class="lineno" valign="top"></td><td class="left">      100 Continue (status code)  26</td><td> </td><td class="right">      100 Continue (status code)  26</td><td class="lineno" valign="top"></td></tr>
655      <tr><td><a name="diff0037" /></td></tr>
656      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">      100-continue (expect value)  44</span></td><td class="lineno" valign="top"></td></tr>
657      <tr><td class="lineno" valign="top"></td><td class="left">      101 Switching Protocols (status code)  26</td><td> </td><td class="right">      101 Switching Protocols (status code)  26</td><td class="lineno" valign="top"></td></tr>
658      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
659      <tr><td class="lineno" valign="top"></td><td class="left">   2</td><td> </td><td class="right">   2</td><td class="lineno" valign="top"></td></tr>
660      <tr><td class="lineno" valign="top"></td><td class="left">      200 OK (status code)  27</td><td> </td><td class="right">      200 OK (status code)  27</td><td class="lineno" valign="top"></td></tr>
661      <tr><td class="lineno" valign="top"></td><td class="left">      201 Created (status code)  27</td><td> </td><td class="right">      201 Created (status code)  27</td><td class="lineno" valign="top"></td></tr>
662      <tr><td class="lineno" valign="top"></td><td class="left">      202 Accepted (status code)  28</td><td> </td><td class="right">      202 Accepted (status code)  28</td><td class="lineno" valign="top"></td></tr>
663      <tr><td class="lineno" valign="top"></td><td class="left">      203 Non-Authoritative Information (status code)  28</td><td> </td><td class="right">      203 Non-Authoritative Information (status code)  28</td><td class="lineno" valign="top"></td></tr>
664      <tr><td class="lineno" valign="top"></td><td class="left">      204 No Content (status code)  28</td><td> </td><td class="right">      204 No Content (status code)  28</td><td class="lineno" valign="top"></td></tr>
665      <tr><td class="lineno" valign="top"></td><td class="left">      205 Reset Content (status code)  29</td><td> </td><td class="right">      205 Reset Content (status code)  29</td><td class="lineno" valign="top"></td></tr>
666      <tr><td class="lineno" valign="top"></td><td class="left">      206 Partial Content (status code)  29</td><td> </td><td class="right">      206 Partial Content (status code)  29</td><td class="lineno" valign="top"></td></tr>
667      <tr><td class="lineno"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno"></td></tr>
668      <tr bgcolor="gray" ><td></td><th><a name="part-l17" /><small>skipping to change at</small><em> page 67, line 32</em></th><th> </th><th><a name="part-r17" /><small>skipping to change at</small><em> page 69, line 6</em></th><td></td></tr>
669      <tr><td class="lineno" valign="top"></td><td class="left">      307 Temporary Redirect (status code)  33</td><td> </td><td class="right">      307 Temporary Redirect (status code)  33</td><td class="lineno" valign="top"></td></tr>
670      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
671      <tr><td class="lineno" valign="top"></td><td class="left">   4</td><td> </td><td class="right">   4</td><td class="lineno" valign="top"></td></tr>
672      <tr><td class="lineno" valign="top"></td><td class="left">      400 Bad Request (status code)  34</td><td> </td><td class="right">      400 Bad Request (status code)  34</td><td class="lineno" valign="top"></td></tr>
673      <tr><td class="lineno" valign="top"></td><td class="left">      401 Unauthorized (status code)  34</td><td> </td><td class="right">      401 Unauthorized (status code)  34</td><td class="lineno" valign="top"></td></tr>
674      <tr><td class="lineno" valign="top"></td><td class="left">      402 Payment Required (status code)  34</td><td> </td><td class="right">      402 Payment Required (status code)  34</td><td class="lineno" valign="top"></td></tr>
675      <tr><td class="lineno" valign="top"></td><td class="left">      403 Forbidden (status code)  34</td><td> </td><td class="right">      403 Forbidden (status code)  34</td><td class="lineno" valign="top"></td></tr>
676      <tr><td class="lineno" valign="top"></td><td class="left">      404 Not Found (status code)  35</td><td> </td><td class="right">      404 Not Found (status code)  35</td><td class="lineno" valign="top"></td></tr>
677      <tr><td class="lineno" valign="top"></td><td class="left">      405 Method Not Allowed (status code)  35</td><td> </td><td class="right">      405 Method Not Allowed (status code)  35</td><td class="lineno" valign="top"></td></tr>
678      <tr><td class="lineno" valign="top"></td><td class="left">      406 Not Acceptable (status code)  35</td><td> </td><td class="right">      406 Not Acceptable (status code)  35</td><td class="lineno" valign="top"></td></tr>
679      <tr><td><a name="diff0038" /></td></tr>
680      <tr><td class="lineno" valign="top"></td><td class="lblock">      407 Proxy Authentication Required (status code)  3<span class="delete">5</span></td><td> </td><td class="rblock">      407 Proxy Authentication Required (status code)  3<span class="insert">6</span></td><td class="lineno" valign="top"></td></tr>
681      <tr><td class="lineno" valign="top"></td><td class="left">      408 Request Timeout (status code)  36</td><td> </td><td class="right">      408 Request Timeout (status code)  36</td><td class="lineno" valign="top"></td></tr>
682      <tr><td class="lineno" valign="top"></td><td class="left">      409 Conflict (status code)  36</td><td> </td><td class="right">      409 Conflict (status code)  36</td><td class="lineno" valign="top"></td></tr>
683      <tr><td class="lineno" valign="top"></td><td class="left">      410 Gone (status code)  36</td><td> </td><td class="right">      410 Gone (status code)  36</td><td class="lineno" valign="top"></td></tr>
684      <tr><td class="lineno" valign="top"></td><td class="left">      411 Length Required (status code)  37</td><td> </td><td class="right">      411 Length Required (status code)  37</td><td class="lineno" valign="top"></td></tr>
685      <tr><td class="lineno" valign="top"></td><td class="left">      412 Precondition Failed (status code)  37</td><td> </td><td class="right">      412 Precondition Failed (status code)  37</td><td class="lineno" valign="top"></td></tr>
686      <tr><td class="lineno" valign="top"></td><td class="left">      413 Request Representation Too Large (status code)  37</td><td> </td><td class="right">      413 Request Representation Too Large (status code)  37</td><td class="lineno" valign="top"></td></tr>
687      <tr><td class="lineno" valign="top"></td><td class="left">      414 URI Too Long (status code)  37</td><td> </td><td class="right">      414 URI Too Long (status code)  37</td><td class="lineno" valign="top"></td></tr>
688      <tr><td class="lineno" valign="top"></td><td class="left">      415 Unsupported Media Type (status code)  37</td><td> </td><td class="right">      415 Unsupported Media Type (status code)  37</td><td class="lineno" valign="top"></td></tr>
689      <tr><td class="lineno" valign="top"></td><td class="left">      416 Requested Range Not Satisfiable (status code)  38</td><td> </td><td class="right">      416 Requested Range Not Satisfiable (status code)  38</td><td class="lineno" valign="top"></td></tr>
690      <tr><td class="lineno" valign="top"></td><td class="left">      417 Expectation Failed (status code)  38</td><td> </td><td class="right">      417 Expectation Failed (status code)  38</td><td class="lineno" valign="top"></td></tr>
691      <tr><td class="lineno"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno"></td></tr>
692      <tr bgcolor="gray" ><td></td><th><a name="part-l18" /><small>skipping to change at</small><em> page 68, line 17</em></th><th> </th><th><a name="part-r18" /><small>skipping to change at</small><em> page 69, line 39</em></th><td></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">   C</td><td> </td><td class="right">   C</td><td class="lineno" valign="top"></td></tr>
695      <tr><td class="lineno" valign="top"></td><td class="left">      CONNECT method  24</td><td> </td><td class="right">      CONNECT method  24</td><td class="lineno" valign="top"></td></tr>
696      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
697      <tr><td class="lineno" valign="top"></td><td class="left">   D</td><td> </td><td class="right">   D</td><td class="lineno" valign="top"></td></tr>
698      <tr><td class="lineno" valign="top"></td><td class="left">      Date header field  43</td><td> </td><td class="right">      Date header field  43</td><td class="lineno" valign="top"></td></tr>
699      <tr><td class="lineno" valign="top"></td><td class="left">      DELETE method  23</td><td> </td><td class="right">      DELETE method  23</td><td class="lineno" valign="top"></td></tr>
700      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
701      <tr><td class="lineno" valign="top"></td><td class="left">   E</td><td> </td><td class="right">   E</td><td class="lineno" valign="top"></td></tr>
702      <tr><td class="lineno" valign="top"></td><td class="left">      Expect header field  44</td><td> </td><td class="right">      Expect header field  44</td><td class="lineno" valign="top"></td></tr>
703      <tr><td><a name="diff0039" /></td></tr>
704      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock">      <span class="insert">Expect Values</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">         100-continue  44</span></td><td class="lineno" valign="top"></td></tr>
706      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
707      <tr><td class="lineno" valign="top"></td><td class="left">   F</td><td> </td><td class="right">   F</td><td class="lineno" valign="top"></td></tr>
708      <tr><td class="lineno" valign="top"></td><td class="left">      From header field  44</td><td> </td><td class="right">      From header field  44</td><td class="lineno" valign="top"></td></tr>
709      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
710      <tr><td class="lineno" valign="top"></td><td class="left">   G</td><td> </td><td class="right">   G</td><td class="lineno" valign="top"></td></tr>
711      <tr><td class="lineno" valign="top"></td><td class="left">      GET method  19</td><td> </td><td class="right">      GET method  19</td><td class="lineno" valign="top"></td></tr>
712      <tr><td class="lineno" valign="top"></td><td class="left">      Grammar</td><td> </td><td class="right">      Grammar</td><td class="lineno" valign="top"></td></tr>
713      <tr><td class="lineno" valign="top"></td><td class="left">         Allow  42</td><td> </td><td class="right">         Allow  42</td><td class="lineno" valign="top"></td></tr>
714      <tr><td class="lineno" valign="top"></td><td class="left">         asctime-date  42</td><td> </td><td class="right">         asctime-date  42</td><td class="lineno" valign="top"></td></tr>
715      <tr><td class="lineno" valign="top"></td><td class="left">         Date  43</td><td> </td><td class="right">         Date  43</td><td class="lineno" valign="top"></td></tr>
716      <tr><td class="lineno" valign="top"></td><td class="left">         date1  41</td><td> </td><td class="right">         date1  41</td><td class="lineno" valign="top"></td></tr>
717      <tr><td class="lineno" valign="top"></td><td class="left">         day  41</td><td> </td><td class="right">         day  41</td><td class="lineno" valign="top"></td></tr>
718      <tr><td class="lineno" valign="top"></td><td class="left">         day-name  41</td><td> </td><td class="right">         day-name  41</td><td class="lineno" valign="top"></td></tr>
719      <tr><td class="lineno" valign="top"></td><td class="left">         day-name-l  41</td><td> </td><td class="right">         day-name-l  41</td><td class="lineno" valign="top"></td></tr>
720      <tr><td class="lineno" valign="top"></td><td class="left">         delta-seconds  47</td><td> </td><td class="right">         delta-seconds  47</td><td class="lineno" valign="top"></td></tr>
721      <tr><td class="lineno" valign="top"></td><td class="left">         Expect  44</td><td> </td><td class="right">         Expect  44</td><td class="lineno" valign="top"></td></tr>
722      <tr><td><a name="diff0040" /></td></tr>
723      <tr><td class="lineno" valign="top"></td><td class="lblock">         <span class="delete">expect-params</span>  44</td><td> </td><td class="rblock">         <span class="insert">expect-name  44</span></td><td class="lineno" valign="top"></td></tr>
724      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">         expect-param  44</span></td><td class="lineno" valign="top"></td></tr>
725      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">         expect-value</span>  44</td><td class="lineno" valign="top"></td></tr>
726      <tr><td class="lineno" valign="top"></td><td class="left">         expectation  44</td><td> </td><td class="right">         expectation  44</td><td class="lineno" valign="top"></td></tr>
727      <tr><td><a name="diff0041" /></td></tr>
728      <tr><td class="lineno" valign="top"></td><td class="lblock">         <span class="delete">expectation-extension  44</span></td><td> </td><td class="rblock">         extension-code  <span class="insert">13</span></td><td class="lineno" valign="top"></td></tr>
729      <tr><td class="lineno" valign="top"></td><td class="lblock">         extension-code  <span class="delete">12</span></td><td> </td><td class="rblock"></td><td class="lineno" valign="top"></td></tr>
730      <tr><td class="lineno" valign="top"></td><td class="left">         From  45</td><td> </td><td class="right">         From  45</td><td class="lineno" valign="top"></td></tr>
731      <tr><td class="lineno" valign="top"></td><td class="left">         GMT  41</td><td> </td><td class="right">         GMT  41</td><td class="lineno" valign="top"></td></tr>
732      <tr><td class="lineno" valign="top"></td><td class="left">         hour  41</td><td> </td><td class="right">         hour  41</td><td class="lineno" valign="top"></td></tr>
733      <tr><td class="lineno" valign="top"></td><td class="left">         HTTP-date  40</td><td> </td><td class="right">         HTTP-date  40</td><td class="lineno" valign="top"></td></tr>
734      <tr><td class="lineno" valign="top"></td><td class="left">         Location  45</td><td> </td><td class="right">         Location  45</td><td class="lineno" valign="top"></td></tr>
735      <tr><td class="lineno" valign="top"></td><td class="left">         Max-Forwards  46</td><td> </td><td class="right">         Max-Forwards  46</td><td class="lineno" valign="top"></td></tr>
736      <tr><td class="lineno" valign="top"></td><td class="left">         Method  7</td><td> </