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37  <table border="0" cellpadding="0" cellspacing="0">
38  <tr bgcolor="orange"><th></th><th>&nbsp;draft-ietf-httpbis-p2-semantics-22.txt&nbsp;</th><th> </th><th>&nbsp;draft-ietf-httpbis-p2-semantics-23.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. Reschke, Ed.</td><td> </td><td class="right">Obsoletes: 2616 (if approved)                            J. Reschke, Ed.</td><td class="lineno" valign="top"></td></tr>
43      <tr><td class="lineno" valign="top"></td><td class="left">Updates: 2817 (if approved)                                   greenbytes</td><td> </td><td class="right">Updates: 2817 (if approved)                                   greenbytes</td><td class="lineno" valign="top"></td></tr>
44      <tr><td><a name="diff0001" /></td></tr>
45      <tr><td class="lineno" valign="top"></td><td class="lblock">Intended status: Standards Track                       <span class="delete">February 23,</span> 2013</td><td> </td><td class="rblock">Intended status: Standards Track                           <span class="insert">July 15,</span> 2013</td><td class="lineno" valign="top"></td></tr>
46      <tr><td class="lineno" valign="top"></td><td class="lblock">Expires: <span class="delete">August 27, 2013</span></td><td> </td><td class="rblock">Expires: <span class="insert">January 16, 2014</span></td><td class="lineno" valign="top"></td></tr>
47      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
48      <tr><td class="lineno" valign="top"></td><td class="left">     Hypertext Transfer Protocol (HTTP/1.1): Semantics and Content</td><td> </td><td class="right">     Hypertext Transfer Protocol (HTTP/1.1): Semantics and Content</td><td class="lineno" valign="top"></td></tr>
49      <tr><td><a name="diff0002" /></td></tr>
50      <tr><td class="lineno" valign="top"></td><td class="lblock">                   draft-ietf-httpbis-p2-semantics-2<span class="delete">2</span></td><td> </td><td class="rblock">                   draft-ietf-httpbis-p2-semantics-2<span class="insert">3</span></td><td class="lineno" valign="top"></td></tr>
51      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
52      <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>
53      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
54      <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>
55      <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>
56      <tr><td class="lineno" valign="top"></td><td class="left">   systems.  This document defines the semantics of HTTP/1.1 messages,</td><td> </td><td class="right">   systems.  This document defines the semantics of HTTP/1.1 messages,</td><td class="lineno" valign="top"></td></tr>
57      <tr><td class="lineno" valign="top"></td><td class="left">   as expressed by request methods, request header fields, response</td><td> </td><td class="right">   as expressed by request methods, request header fields, response</td><td class="lineno" valign="top"></td></tr>
58      <tr><td class="lineno" valign="top"></td><td class="left">   status codes, and response header fields, along with the payload of</td><td> </td><td class="right">   status codes, and response header fields, along with the payload of</td><td class="lineno" valign="top"></td></tr>
59      <tr><td class="lineno" valign="top"></td><td class="left">   messages (metadata and body content) and mechanisms for content</td><td> </td><td class="right">   messages (metadata and body content) and mechanisms for content</td><td class="lineno" valign="top"></td></tr>
60      <tr><td class="lineno" valign="top"></td><td class="left">   negotiation.</td><td> </td><td class="right">   negotiation.</td><td class="lineno" valign="top"></td></tr>
61      <tr><td class="lineno"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno"></td></tr>
62      <tr bgcolor="gray" ><td></td><th><a name="part-l2" /><small>skipping to change at</small><em> page 1, line 34</em></th><th> </th><th><a name="part-r2" /><small>skipping to change at</small><em> page 1, line 34</em></th><td></td></tr>
63      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
64      <tr><td class="lineno" valign="top"></td><td class="left">   Discussion of this draft takes place on the HTTPBIS working group</td><td> </td><td class="right">   Discussion of this draft takes place on the HTTPBIS working group</td><td class="lineno" valign="top"></td></tr>
65      <tr><td class="lineno" valign="top"></td><td class="left">   mailing list (ietf-http-wg@w3.org), which is archived at</td><td> </td><td class="right">   mailing list (ietf-http-wg@w3.org), which is archived at</td><td class="lineno" valign="top"></td></tr>
66      <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>
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 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>
69      <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>
70      <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>
71      <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>
72      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
73      <tr><td><a name="diff0003" /></td></tr>
74      <tr><td class="lineno" valign="top"></td><td class="lblock">   The changes in this draft are summarized in Appendix E.<span class="delete">2</span>.</td><td> </td><td class="rblock">   The changes in this draft are summarized in Appendix E.<span class="insert">3</span>.</td><td class="lineno" valign="top"></td></tr>
75      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
76      <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>
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">   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>
79      <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>
80      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
81      <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>
82      <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>
83      <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>
84      <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>
85      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
86      <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>
87      <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>
88      <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>
89      <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>
90      <tr><td><a name="diff0004" /></td></tr>
91      <tr><td class="lineno" valign="top"></td><td class="lblock">   This Internet-Draft will expire on <span class="delete">August 27, 2013</span>.</td><td> </td><td class="rblock">   This Internet-Draft will expire on <span class="insert">January 16, 2014</span>.</td><td class="lineno" valign="top"></td></tr>
92      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
93      <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>
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">   Copyright (c) 2013 IETF Trust and the persons identified as the</td><td> </td><td class="right">   Copyright (c) 2013 IETF Trust and the persons identified as the</td><td class="lineno" valign="top"></td></tr>
96      <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>
97      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
98      <tr><td class="lineno" valign="top"></td><td class="left">   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>
99      <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>
100      <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>
101      <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>
102      <tr><td class="lineno"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno"></td></tr>
103      <tr bgcolor="gray" ><td></td><th><a name="part-l3" /><small>skipping to change at</small><em> page 3, line 29</em></th><th> </th><th><a name="part-r3" /><small>skipping to change at</small><em> page 3, line 29</em></th><td></td></tr>
104      <tr><td class="lineno" valign="top"></td><td class="left">       5.1.1.  Expect . . . . . . . . . . . . . . . . . . . . . . . . 33</td><td> </td><td class="right">       5.1.1.  Expect . . . . . . . . . . . . . . . . . . . . . . . . 33</td><td class="lineno" valign="top"></td></tr>
105      <tr><td class="lineno" valign="top"></td><td class="left">       5.1.2.  Max-Forwards . . . . . . . . . . . . . . . . . . . . . 36</td><td> </td><td class="right">       5.1.2.  Max-Forwards . . . . . . . . . . . . . . . . . . . . . 36</td><td class="lineno" valign="top"></td></tr>
106      <tr><td class="lineno" valign="top"></td><td class="left">     5.2.  Conditionals . . . . . . . . . . . . . . . . . . . . . . . 36</td><td> </td><td class="right">     5.2.  Conditionals . . . . . . . . . . . . . . . . . . . . . . . 36</td><td class="lineno" valign="top"></td></tr>
107      <tr><td class="lineno" valign="top"></td><td class="left">     5.3.  Content Negotiation  . . . . . . . . . . . . . . . . . . . 37</td><td> </td><td class="right">     5.3.  Content Negotiation  . . . . . . . . . . . . . . . . . . . 37</td><td class="lineno" valign="top"></td></tr>
108      <tr><td class="lineno" valign="top"></td><td class="left">       5.3.1.  Quality Values . . . . . . . . . . . . . . . . . . . . 37</td><td> </td><td class="right">       5.3.1.  Quality Values . . . . . . . . . . . . . . . . . . . . 37</td><td class="lineno" valign="top"></td></tr>
109      <tr><td class="lineno" valign="top"></td><td class="left">       5.3.2.  Accept . . . . . . . . . . . . . . . . . . . . . . . . 38</td><td> </td><td class="right">       5.3.2.  Accept . . . . . . . . . . . . . . . . . . . . . . . . 38</td><td class="lineno" valign="top"></td></tr>
110      <tr><td class="lineno" valign="top"></td><td class="left">       5.3.3.  Accept-Charset . . . . . . . . . . . . . . . . . . . . 40</td><td> </td><td class="right">       5.3.3.  Accept-Charset . . . . . . . . . . . . . . . . . . . . 40</td><td class="lineno" valign="top"></td></tr>
111      <tr><td class="lineno" valign="top"></td><td class="left">       5.3.4.  Accept-Encoding  . . . . . . . . . . . . . . . . . . . 41</td><td> </td><td class="right">       5.3.4.  Accept-Encoding  . . . . . . . . . . . . . . . . . . . 41</td><td class="lineno" valign="top"></td></tr>
112      <tr><td class="lineno" valign="top"></td><td class="left">       5.3.5.  Accept-Language  . . . . . . . . . . . . . . . . . . . 42</td><td> </td><td class="right">       5.3.5.  Accept-Language  . . . . . . . . . . . . . . . . . . . 42</td><td class="lineno" valign="top"></td></tr>
113      <tr><td class="lineno" valign="top"></td><td class="left">     5.4.  Authentication Credentials . . . . . . . . . . . . . . . . 43</td><td> </td><td class="right">     5.4.  Authentication Credentials . . . . . . . . . . . . . . . . 43</td><td class="lineno" valign="top"></td></tr>
114      <tr><td><a name="diff0005" /></td></tr>
115      <tr><td class="lineno" valign="top"></td><td class="lblock">     5.5.  Request Context  . . . . . . . . . . . . . . . . . . . . . 4<span class="delete">3</span></td><td> </td><td class="rblock">     5.5.  Request Context  . . . . . . . . . . . . . . . . . . . . . 4<span class="insert">4</span></td><td class="lineno" valign="top"></td></tr>
116      <tr><td class="lineno" valign="top"></td><td class="left">       5.5.1.  From . . . . . . . . . . . . . . . . . . . . . . . . . 44</td><td> </td><td class="right">       5.5.1.  From . . . . . . . . . . . . . . . . . . . . . . . . . 44</td><td class="lineno" valign="top"></td></tr>
117      <tr><td class="lineno" valign="top"></td><td class="left">       5.5.2.  Referer  . . . . . . . . . . . . . . . . . . . . . . . 44</td><td> </td><td class="right">       5.5.2.  Referer  . . . . . . . . . . . . . . . . . . . . . . . 44</td><td class="lineno" valign="top"></td></tr>
118      <tr><td class="lineno" valign="top"></td><td class="left">       5.5.3.  User-Agent . . . . . . . . . . . . . . . . . . . . . . 45</td><td> </td><td class="right">       5.5.3.  User-Agent . . . . . . . . . . . . . . . . . . . . . . 45</td><td class="lineno" valign="top"></td></tr>
119      <tr><td><a name="diff0006" /></td></tr>
120      <tr><td class="lineno" valign="top"></td><td class="lblock">   6.  Response Status Codes  . . . . . . . . . . . . . . . . . . . . 4<span class="delete">6</span></td><td> </td><td class="rblock">   6.  Response Status Codes  . . . . . . . . . . . . . . . . . . . . 4<span class="insert">7</span></td><td class="lineno" valign="top"></td></tr>
121      <tr><td class="lineno" valign="top"></td><td class="left">     6.1.  Overview of Status Codes . . . . . . . . . . . . . . . . . 47</td><td> </td><td class="right">     6.1.  Overview of Status Codes . . . . . . . . . . . . . . . . . 47</td><td class="lineno" valign="top"></td></tr>
122      <tr><td class="lineno" valign="top"></td><td class="left">     6.2.  Informational 1xx  . . . . . . . . . . . . . . . . . . . . 49</td><td> </td><td class="right">     6.2.  Informational 1xx  . . . . . . . . . . . . . . . . . . . . 49</td><td class="lineno" valign="top"></td></tr>
123      <tr><td class="lineno" valign="top"></td><td class="left">       6.2.1.  100 Continue . . . . . . . . . . . . . . . . . . . . . 49</td><td> </td><td class="right">       6.2.1.  100 Continue . . . . . . . . . . . . . . . . . . . . . 49</td><td class="lineno" valign="top"></td></tr>
124      <tr><td class="lineno" valign="top"></td><td class="left">       6.2.2.  101 Switching Protocols  . . . . . . . . . . . . . . . 50</td><td> </td><td class="right">       6.2.2.  101 Switching Protocols  . . . . . . . . . . . . . . . 50</td><td class="lineno" valign="top"></td></tr>
125      <tr><td class="lineno" valign="top"></td><td class="left">     6.3.  Successful 2xx . . . . . . . . . . . . . . . . . . . . . . 50</td><td> </td><td class="right">     6.3.  Successful 2xx . . . . . . . . . . . . . . . . . . . . . . 50</td><td class="lineno" valign="top"></td></tr>
126      <tr><td class="lineno" valign="top"></td><td class="left">       6.3.1.  200 OK . . . . . . . . . . . . . . . . . . . . . . . . 50</td><td> </td><td class="right">       6.3.1.  200 OK . . . . . . . . . . . . . . . . . . . . . . . . 50</td><td class="lineno" valign="top"></td></tr>
127      <tr><td class="lineno" valign="top"></td><td class="left">       6.3.2.  201 Created  . . . . . . . . . . . . . . . . . . . . . 51</td><td> </td><td class="right">       6.3.2.  201 Created  . . . . . . . . . . . . . . . . . . . . . 51</td><td class="lineno" valign="top"></td></tr>
128      <tr><td class="lineno" valign="top"></td><td class="left">       6.3.3.  202 Accepted . . . . . . . . . . . . . . . . . . . . . 51</td><td> </td><td class="right">       6.3.3.  202 Accepted . . . . . . . . . . . . . . . . . . . . . 51</td><td class="lineno" valign="top"></td></tr>
129      <tr><td class="lineno" valign="top"></td><td class="left">       6.3.4.  203 Non-Authoritative Information  . . . . . . . . . . 51</td><td> </td><td class="right">       6.3.4.  203 Non-Authoritative Information  . . . . . . . . . . 51</td><td class="lineno" valign="top"></td></tr>
130      <tr><td class="lineno" valign="top"></td><td class="left">       6.3.5.  204 No Content . . . . . . . . . . . . . . . . . . . . 52</td><td> </td><td class="right">       6.3.5.  204 No Content . . . . . . . . . . . . . . . . . . . . 52</td><td class="lineno" valign="top"></td></tr>
131      <tr><td class="lineno"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno"></td></tr>
132      <tr bgcolor="gray" ><td></td><th><a name="part-l4" /><small>skipping to change at</small><em> page 4, line 46</em></th><th> </th><th><a name="part-r4" /><small>skipping to change at</small><em> page 4, line 46</em></th><td></td></tr>
133      <tr><td class="lineno" valign="top"></td><td class="left">     7.4.  Response Context . . . . . . . . . . . . . . . . . . . . . 70</td><td> </td><td class="right">     7.4.  Response Context . . . . . . . . . . . . . . . . . . . . . 70</td><td class="lineno" valign="top"></td></tr>
134      <tr><td class="lineno" valign="top"></td><td class="left">       7.4.1.  Allow  . . . . . . . . . . . . . . . . . . . . . . . . 71</td><td> </td><td class="right">       7.4.1.  Allow  . . . . . . . . . . . . . . . . . . . . . . . . 71</td><td class="lineno" valign="top"></td></tr>
135      <tr><td class="lineno" valign="top"></td><td class="left">       7.4.2.  Server . . . . . . . . . . . . . . . . . . . . . . . . 71</td><td> </td><td class="right">       7.4.2.  Server . . . . . . . . . . . . . . . . . . . . . . . . 71</td><td class="lineno" valign="top"></td></tr>
136      <tr><td class="lineno" valign="top"></td><td class="left">   8.  IANA Considerations  . . . . . . . . . . . . . . . . . . . . . 72</td><td> </td><td class="right">   8.  IANA Considerations  . . . . . . . . . . . . . . . . . . . . . 72</td><td class="lineno" valign="top"></td></tr>
137      <tr><td class="lineno" valign="top"></td><td class="left">     8.1.  Method Registry  . . . . . . . . . . . . . . . . . . . . . 72</td><td> </td><td class="right">     8.1.  Method Registry  . . . . . . . . . . . . . . . . . . . . . 72</td><td class="lineno" valign="top"></td></tr>
138      <tr><td class="lineno" valign="top"></td><td class="left">       8.1.1.  Procedure  . . . . . . . . . . . . . . . . . . . . . . 72</td><td> </td><td class="right">       8.1.1.  Procedure  . . . . . . . . . . . . . . . . . . . . . . 72</td><td class="lineno" valign="top"></td></tr>
139      <tr><td class="lineno" valign="top"></td><td class="left">       8.1.2.  Considerations for New Methods . . . . . . . . . . . . 72</td><td> </td><td class="right">       8.1.2.  Considerations for New Methods . . . . . . . . . . . . 72</td><td class="lineno" valign="top"></td></tr>
140      <tr><td class="lineno" valign="top"></td><td class="left">       8.1.3.  Registrations  . . . . . . . . . . . . . . . . . . . . 73</td><td> </td><td class="right">       8.1.3.  Registrations  . . . . . . . . . . . . . . . . . . . . 73</td><td class="lineno" valign="top"></td></tr>
141      <tr><td class="lineno" valign="top"></td><td class="left">     8.2.  Status Code Registry . . . . . . . . . . . . . . . . . . . 73</td><td> </td><td class="right">     8.2.  Status Code Registry . . . . . . . . . . . . . . . . . . . 73</td><td class="lineno" valign="top"></td></tr>
142      <tr><td class="lineno" valign="top"></td><td class="left">       8.2.1.  Procedure  . . . . . . . . . . . . . . . . . . . . . . 73</td><td> </td><td class="right">       8.2.1.  Procedure  . . . . . . . . . . . . . . . . . . . . . . 73</td><td class="lineno" valign="top"></td></tr>
143      <tr><td><a name="diff0007" /></td></tr>
144      <tr><td class="lineno" valign="top"></td><td class="lblock">       8.2.2.  Considerations for New Status Codes  . . . . . . . . . <span class="delete">73</span></td><td> </td><td class="rblock">       8.2.2.  Considerations for New Status Codes  . . . . . . . . . <span class="insert">74</span></td><td class="lineno" valign="top"></td></tr>
145      <tr><td class="lineno" valign="top"></td><td class="lblock">       8.2.3.  Registrations  . . . . . . . . . . . . . . . . . . . . <span class="delete">74</span></td><td> </td><td class="rblock">       8.2.3.  Registrations  . . . . . . . . . . . . . . . . . . . . <span class="insert">75</span></td><td class="lineno" valign="top"></td></tr>
146      <tr><td class="lineno" valign="top"></td><td class="lblock">     8.3.  Header Field Registry  . . . . . . . . . . . . . . . . . . <span class="delete">75</span></td><td> </td><td class="rblock">     8.3.  Header Field Registry  . . . . . . . . . . . . . . . . . . <span class="insert">76</span></td><td class="lineno" valign="top"></td></tr>
147      <tr><td class="lineno" valign="top"></td><td class="lblock">       8.3.1.  Considerations for New Header Fields . . . . . . . . . <span class="delete">76</span></td><td> </td><td class="rblock">       8.3.1.  Considerations for New Header Fields . . . . . . . . . <span class="insert">77</span></td><td class="lineno" valign="top"></td></tr>
148      <tr><td class="lineno" valign="top"></td><td class="lblock">       8.3.2.  Registrations  . . . . . . . . . . . . . . . . . . . . <span class="delete">78</span></td><td> </td><td class="rblock">       8.3.2.  Registrations  . . . . . . . . . . . . . . . . . . . . <span class="insert">79</span></td><td class="lineno" valign="top"></td></tr>
149      <tr><td class="lineno" valign="top"></td><td class="lblock">     8.4.  Content Coding Registry  . . . . . . . . . . . . . . . . . <span class="delete">78</span></td><td> </td><td class="rblock">     8.4.  Content Coding Registry  . . . . . . . . . . . . . . . . . <span class="insert">79</span></td><td class="lineno" valign="top"></td></tr>
150      <tr><td class="lineno" valign="top"></td><td class="lblock">       8.4.1.  Procedure  . . . . . . . . . . . . . . . . . . . . . . <span class="delete">78</span></td><td> </td><td class="rblock">       8.4.1.  Procedure  . . . . . . . . . . . . . . . . . . . . . . <span class="insert">79</span></td><td class="lineno" valign="top"></td></tr>
151      <tr><td class="lineno" valign="top"></td><td class="lblock">       8.4.2.  Registrations  . . . . . . . . . . . . . . . . . . . . <span class="delete">79</span></td><td> </td><td class="rblock">       8.4.2.  Registrations  . . . . . . . . . . . . . . . . . . . . <span class="insert">80</span></td><td class="lineno" valign="top"></td></tr>
152      <tr><td class="lineno" valign="top"></td><td class="lblock">   9.  Security Considerations  . . . . . . . . . . . . . . . . . . . <span class="delete">79</span></td><td> </td><td class="rblock">   9.  Security Considerations  . . . . . . . . . . . . . . . . . . . <span class="insert">80</span></td><td class="lineno" valign="top"></td></tr>
153      <tr><td class="lineno" valign="top"></td><td class="lblock">     9.1.  Attacks Based On File and Path Names . . . . . . . . . . . <span class="delete">79</span></td><td> </td><td class="rblock">     9.1.  Attacks Based On File and Path Names . . . . . . . . . . . <span class="insert">80</span></td><td class="lineno" valign="top"></td></tr>
154      <tr><td class="lineno" valign="top"></td><td class="lblock">     9.2.  Personal Information . . . . . . . . . . . . . . . . . . . <span class="delete">80</span></td><td> </td><td class="rblock">     9.2.  Personal Information . . . . . . . . . . . . . . . . . . . <span class="insert">81</span></td><td class="lineno" valign="top"></td></tr>
155      <tr><td class="lineno" valign="top"></td><td class="lblock">     9.3.  Sensitive Information in URIs  . . . . . . . . . . . . . . <span class="delete">80</span></td><td> </td><td class="rblock">     9.3.  Sensitive Information in URIs  . . . . . . . . . . . . . . <span class="insert">81</span></td><td class="lineno" valign="top"></td></tr>
156      <tr><td class="lineno" valign="top"></td><td class="lblock">     9.4.  Product Information  . . . . . . . . . . . . . . . . . . . <span class="delete">81</span></td><td> </td><td class="rblock">     9.4.  Product Information  . . . . . . . . . . . . . . . . . . . <span class="insert">82</span></td><td class="lineno" valign="top"></td></tr>
157      <tr><td class="lineno" valign="top"></td><td class="lblock">     9.5.  Fragment after Redirects . . . . . . . . . . . . . . . . . <span class="delete">81</span></td><td> </td><td class="rblock">     9.5.  Fragment after Redirects . . . . . . . . . . . . . . . . . <span class="insert">82</span></td><td class="lineno" valign="top"></td></tr>
158      <tr><td class="lineno" valign="top"></td><td class="lblock">     9.6.  Browser Fingerprinting . . . . . . . . . . . . . . . . . . <span class="delete">81</span></td><td> </td><td class="rblock">     9.6.  Browser Fingerprinting . . . . . . . . . . . . . . . . . . <span class="insert">82</span></td><td class="lineno" valign="top"></td></tr>
159      <tr><td class="lineno" valign="top"></td><td class="lblock">   10. Acknowledgments  . . . . . . . . . . . . . . . . . . . . . . . <span class="delete">82</span></td><td> </td><td class="rblock">   10. Acknowledgments  . . . . . . . . . . . . . . . . . . . . . . . <span class="insert">83</span></td><td class="lineno" valign="top"></td></tr>
160      <tr><td class="lineno" valign="top"></td><td class="lblock">   11. References . . . . . . . . . . . . . . . . . . . . . . . . . . <span class="delete">82</span></td><td> </td><td class="rblock">   11. References . . . . . . . . . . . . . . . . . . . . . . . . . . <span class="insert">83</span></td><td class="lineno" valign="top"></td></tr>
161      <tr><td class="lineno" valign="top"></td><td class="lblock">     11.1. Normative References . . . . . . . . . . . . . . . . . . . <span class="delete">82</span></td><td> </td><td class="rblock">     11.1. Normative References . . . . . . . . . . . . . . . . . . . <span class="insert">83</span></td><td class="lineno" valign="top"></td></tr>
162      <tr><td class="lineno" valign="top"></td><td class="lblock">     11.2. Informative References . . . . . . . . . . . . . . . . . . <span class="delete">84</span></td><td> </td><td class="rblock">     11.2. Informative References . . . . . . . . . . . . . . . . . . <span class="insert">85</span></td><td class="lineno" valign="top"></td></tr>
163      <tr><td class="lineno" valign="top"></td><td class="lblock">   Appendix A.  Differences between HTTP and MIME . . . . . . . . . . <span class="delete">85</span></td><td> </td><td class="rblock">   Appendix A.  Differences between HTTP and MIME . . . . . . . . . . <span class="insert">87</span></td><td class="lineno" valign="top"></td></tr>
164      <tr><td class="lineno" valign="top"></td><td class="lblock">     A.1.  MIME-Version . . . . . . . . . . . . . . . . . . . . . . . <span class="delete">86</span></td><td> </td><td class="rblock">     A.1.  MIME-Version . . . . . . . . . . . . . . . . . . . . . . . <span class="insert">87</span></td><td class="lineno" valign="top"></td></tr>
165      <tr><td class="lineno" valign="top"></td><td class="lblock">     A.2.  Conversion to Canonical Form . . . . . . . . . . . . . . . <span class="delete">86</span></td><td> </td><td class="rblock">     A.2.  Conversion to Canonical Form . . . . . . . . . . . . . . . <span class="insert">87</span></td><td class="lineno" valign="top"></td></tr>
166      <tr><td class="lineno" valign="top"></td><td class="lblock">     A.3.  Conversion of Date Formats . . . . . . . . . . . . . . . . <span class="delete">86</span></td><td> </td><td class="rblock">     A.3.  Conversion of Date Formats . . . . . . . . . . . . . . . . <span class="insert">88</span></td><td class="lineno" valign="top"></td></tr>
167      <tr><td class="lineno" valign="top"></td><td class="lblock">     A.4.  Conversion of Content-Encoding . . . . . . . . . . . . . . <span class="delete">87</span></td><td> </td><td class="rblock">     A.4.  Conversion of Content-Encoding . . . . . . . . . . . . . . <span class="insert">88</span></td><td class="lineno" valign="top"></td></tr>
168      <tr><td class="lineno" valign="top"></td><td class="lblock">     A.5.  Conversion of Content-Transfer-Encoding  . . . . . . . . . <span class="delete">87</span></td><td> </td><td class="rblock">     A.5.  Conversion of Content-Transfer-Encoding  . . . . . . . . . <span class="insert">88</span></td><td class="lineno" valign="top"></td></tr>
169      <tr><td class="lineno" valign="top"></td><td class="lblock">     A.6.  MHTML and Line Length Limitations  . . . . . . . . . . . . <span class="delete">87</span></td><td> </td><td class="rblock">     A.6.  MHTML and Line Length Limitations  . . . . . . . . . . . . <span class="insert">88</span></td><td class="lineno" valign="top"></td></tr>
170      <tr><td class="lineno" valign="top"></td><td class="lblock">   Appendix B.  Changes from RFC 2616 . . . . . . . . . . . . . . . . <span class="delete">87</span></td><td> </td><td class="rblock">   Appendix B.  Changes from RFC 2616 . . . . . . . . . . . . . . . . <span class="insert">89</span></td><td class="lineno" valign="top"></td></tr>
171      <tr><td class="lineno" valign="top"></td><td class="lblock">   Appendix C.  Imported ABNF . . . . . . . . . . . . . . . . . . . . <span class="delete">90</span></td><td> </td><td class="rblock">   Appendix C.  Imported ABNF . . . . . . . . . . . . . . . . . . . . <span class="insert">91</span></td><td class="lineno" valign="top"></td></tr>
172      <tr><td class="lineno" valign="top"></td><td class="lblock">   Appendix D.  Collected ABNF  . . . . . . . . . . . . . . . . . . . <span class="delete">90</span></td><td> </td><td class="rblock">   Appendix D.  Collected ABNF  . . . . . . . . . . . . . . . . . . . <span class="insert">92</span></td><td class="lineno" valign="top"></td></tr>
173      <tr><td class="lineno" valign="top"></td><td class="left">   Appendix E.  Change Log (to be removed by RFC Editor before</td><td> </td><td class="right">   Appendix E.  Change Log (to be removed by RFC Editor before</td><td class="lineno" valign="top"></td></tr>
174      <tr><td><a name="diff0008" /></td></tr>
175      <tr><td class="lineno" valign="top"></td><td class="lblock">                publication)  . . . . . . . . . . . . . . . . . . . . <span class="delete">93</span></td><td> </td><td class="rblock">                publication)  . . . . . . . . . . . . . . . . . . . . <span class="insert">95</span></td><td class="lineno" valign="top"></td></tr>
176      <tr><td class="lineno" valign="top"></td><td class="lblock">     E.1.  Since RFC 2616 . . . . . . . . . . . . . . . . . . . . . . <span class="delete">93</span></td><td> </td><td class="rblock">     E.1.  Since RFC 2616 . . . . . . . . . . . . . . . . . . . . . . <span class="insert">95</span></td><td class="lineno" valign="top"></td></tr>
177      <tr><td class="lineno" valign="top"></td><td class="lblock">     E.2.  Since draft-ietf-httpbis-p2-semantics-21 . . . . . . . . . <span class="delete">94</span></td><td> </td><td class="rblock">     E.2.  Since draft-ietf-httpbis-p2-semantics-21 . . . . . . . . . <span class="insert">95</span></td><td class="lineno" valign="top"></td></tr>
178      <tr><td class="lineno" valign="top"></td><td class="lblock">   Index  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . <span class="delete">94</span></td><td> </td><td class="rblock"><span class="insert">     E.3.  Since draft-ietf-httpbis-p2-semantics-22 . . . . . . . . . 96</span></td><td class="lineno" valign="top"></td></tr>
179      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock">   Index  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . <span class="insert">96</span></td><td class="lineno" valign="top"></td></tr>
180      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
181      <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>
182      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
183      <tr><td class="lineno" valign="top"></td><td class="left">   Each Hypertext Transfer Protocol (HTTP) message is either a request</td><td> </td><td class="right">   Each Hypertext Transfer Protocol (HTTP) message is either a request</td><td class="lineno" valign="top"></td></tr>
184      <tr><td class="lineno" valign="top"></td><td class="left">   or a response.  A server listens on a connection for a request,</td><td> </td><td class="right">   or a response.  A server listens on a connection for a request,</td><td class="lineno" valign="top"></td></tr>
185      <tr><td class="lineno" valign="top"></td><td class="left">   parses each message received, interprets the message semantics in</td><td> </td><td class="right">   parses each message received, interprets the message semantics in</td><td class="lineno" valign="top"></td></tr>
186      <tr><td class="lineno" valign="top"></td><td class="left">   relation to the identified request target, and responds to that</td><td> </td><td class="right">   relation to the identified request target, and responds to that</td><td class="lineno" valign="top"></td></tr>
187      <tr><td class="lineno" valign="top"></td><td class="left">   request with one or more response messages.  A client constructs</td><td> </td><td class="right">   request with one or more response messages.  A client constructs</td><td class="lineno" valign="top"></td></tr>
188      <tr><td class="lineno" valign="top"></td><td class="left">   request messages to communicate specific intentions, and examines</td><td> </td><td class="right">   request messages to communicate specific intentions, and examines</td><td class="lineno" valign="top"></td></tr>
189      <tr><td class="lineno" valign="top"></td><td class="left">   received responses to see if the intentions were carried out and</td><td> </td><td class="right">   received responses to see if the intentions were carried out and</td><td class="lineno" valign="top"></td></tr>
190      <tr><td class="lineno"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno"></td></tr>
191      <tr bgcolor="gray" ><td></td><th><a name="part-l5" /><small>skipping to change at</small><em> page 9, line 26</em></th><th> </th><th><a name="part-r5" /><small>skipping to change at</small><em> page 9, line 26</em></th><td></td></tr>
192      <tr><td class="lineno" valign="top"></td><td class="left">   consistency:</td><td> </td><td class="right">   consistency:</td><td class="lineno" valign="top"></td></tr>
193      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
194      <tr><td class="lineno" valign="top"></td><td class="left">     text/html;charset=utf-8</td><td> </td><td class="right">     text/html;charset=utf-8</td><td class="lineno" valign="top"></td></tr>
195      <tr><td class="lineno" valign="top"></td><td class="left">     text/html;charset=UTF-8</td><td> </td><td class="right">     text/html;charset=UTF-8</td><td class="lineno" valign="top"></td></tr>
196      <tr><td class="lineno" valign="top"></td><td class="left">     Text/HTML;Charset="utf-8"</td><td> </td><td class="right">     Text/HTML;Charset="utf-8"</td><td class="lineno" valign="top"></td></tr>
197      <tr><td class="lineno" valign="top"></td><td class="left">     text/html; charset="utf-8"</td><td> </td><td class="right">     text/html; charset="utf-8"</td><td class="lineno" valign="top"></td></tr>
198      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
199      <tr><td class="lineno" valign="top"></td><td class="left">   Internet media types ought to be registered with IANA according to</td><td> </td><td class="right">   Internet media types ought to be registered with IANA according to</td><td class="lineno" valign="top"></td></tr>
200      <tr><td class="lineno" valign="top"></td><td class="left">   the procedures defined in [BCP13].</td><td> </td><td class="right">   the procedures defined in [BCP13].</td><td class="lineno" valign="top"></td></tr>
201      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
202      <tr><td><a name="diff0009" /></td></tr>
203      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock">      <span class="insert">Note: Unlike some similar constructs in other header fields, media</span></td><td class="lineno" valign="top"></td></tr>
204      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">      type parameters do not allow whitespace (even "bad" whitespace)</span></td><td class="lineno" valign="top"></td></tr>
205      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">      around the "=" character.</span></td><td class="lineno" valign="top"></td></tr>
206      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock">                                                                         </td><td class="lineno" valign="top"></td></tr>
207      <tr><td class="lineno" valign="top"></td><td class="left">3.1.1.2.  Charset</td><td> </td><td class="right">3.1.1.2.  Charset</td><td class="lineno" valign="top"></td></tr>
208      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
209      <tr><td class="lineno" valign="top"></td><td class="left">   HTTP uses charset names to indicate or negotiate the character</td><td> </td><td class="right">   HTTP uses charset names to indicate or negotiate the character</td><td class="lineno" valign="top"></td></tr>
210      <tr><td class="lineno" valign="top"></td><td class="left">   encoding scheme of a textual representation [RFC6365].  A charset is</td><td> </td><td class="right">   encoding scheme of a textual representation [RFC6365].  A charset is</td><td class="lineno" valign="top"></td></tr>
211      <tr><td class="lineno" valign="top"></td><td class="left">   identified by a case-insensitive token.</td><td> </td><td class="right">   identified by a case-insensitive token.</td><td class="lineno" valign="top"></td></tr>
212      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
213      <tr><td class="lineno" valign="top"></td><td class="left">     charset = token</td><td> </td><td class="right">     charset = token</td><td class="lineno" valign="top"></td></tr>
214      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
215      <tr><td class="lineno" valign="top"></td><td class="left">   Charset names ought to be registered in IANA Character Set registry</td><td> </td><td class="right">   Charset names ought to be registered in IANA Character Set registry</td><td class="lineno" valign="top"></td></tr>
216      <tr><td class="lineno" valign="top"></td><td class="left">   (&lt;http://www.iana.org/assignments/character-sets&gt;) according to the</td><td> </td><td class="right">   (&lt;http://www.iana.org/assignments/character-sets&gt;) according to the</td><td class="lineno" valign="top"></td></tr>
217      <tr><td class="lineno"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno"></td></tr>
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219      <tr><td class="lineno" valign="top"></td><td class="left">   coding that is not acceptable.</td><td> </td><td class="right">   coding that is not acceptable.</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">3.1.3.  Audience Language</td><td> </td><td class="right">3.1.3.  Audience Language</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">3.1.3.1.  Language Tags</td><td> </td><td class="right">3.1.3.1.  Language Tags</td><td class="lineno" valign="top"></td></tr>
224      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
225      <tr><td class="lineno" valign="top"></td><td class="left">   A language tag, as defined in [RFC5646], identifies a natural</td><td> </td><td class="right">   A language tag, as defined in [RFC5646], identifies a natural</td><td class="lineno" valign="top"></td></tr>
226      <tr><td class="lineno" valign="top"></td><td class="left">   language spoken, written, or otherwise conveyed by human beings for</td><td> </td><td class="right">   language spoken, written, or otherwise conveyed by human beings for</td><td class="lineno" valign="top"></td></tr>
227      <tr><td class="lineno" valign="top"></td><td class="left">   communication of information to other human beings.  Computer</td><td> </td><td class="right">   communication of information to other human beings.  Computer</td><td class="lineno" valign="top"></td></tr>
228      <tr><td class="lineno" valign="top"></td><td class="left">   languages are explicitly excluded.  HTTP uses language tags within</td><td> </td><td class="right">   languages are explicitly excluded.  HTTP uses language tags within</td><td class="lineno" valign="top"></td></tr>
229      <tr><td><a name="diff0010" /></td></tr>
230      <tr><td class="lineno" valign="top"></td><td class="lblock">   the Accept-Language and Content-Language fields.</td><td> </td><td class="rblock">   the Accept-Language and Content-Language <span class="insert">header</span> fields.</td><td class="lineno" valign="top"></td></tr>
231      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock">                                                                         </td><td class="lineno" valign="top"></td></tr>
232      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock">   <span class="insert">Accept-Language uses the looser language-range production defined in</span></td><td class="lineno" valign="top"></td></tr>
233      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">   Section 5.3.5, whereas Content-Language uses the stricter language-</span></td><td class="lineno" valign="top"></td></tr>
234      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">   tag production defined below.</span></td><td class="lineno" valign="top"></td></tr>
235      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
236      <tr><td class="lineno" valign="top"></td><td class="left">     language-tag = &lt;Language-Tag, defined in [RFC5646], Section 2.1&gt;</td><td> </td><td class="right">     language-tag = &lt;Language-Tag, defined in [RFC5646], Section 2.1&gt;</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">   A language tag is composed of one or more parts: a primary language</td><td> </td><td class="right">   A language tag is composed of one or more parts: a primary language</td><td class="lineno" valign="top"></td></tr>
239      <tr><td class="lineno" valign="top"></td><td class="left">   subtag followed by a possibly empty series of subtags.  White space</td><td> </td><td class="right">   subtag followed by a possibly empty series of subtags.  White space</td><td class="lineno" valign="top"></td></tr>
240      <tr><td class="lineno" valign="top"></td><td class="left">   is not allowed within the tag and all tags are case-insensitive.</td><td> </td><td class="right">   is not allowed within the tag and all tags are case-insensitive.</td><td class="lineno" valign="top"></td></tr>
241      <tr><td class="lineno" valign="top"></td><td class="left">   Example tags include:</td><td> </td><td class="right">   Example tags include:</td><td class="lineno" valign="top"></td></tr>
242      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
243      <tr><td class="lineno" valign="top"></td><td class="left">     en, en-US, es-419, az-Arab, x-pig-latin, man-Nkoo-GN</td><td> </td><td class="right">     en, en-US, es-419, az-Arab, x-pig-latin, man-Nkoo-GN</td><td class="lineno" valign="top"></td></tr>
244      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
245      <tr><td class="lineno"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno"></td></tr>
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247      <tr><td class="lineno" valign="top"></td><td class="left">   It is tempting to think of resource identifiers as remote filesystem</td><td> </td><td class="right">   It is tempting to think of resource identifiers as remote filesystem</td><td class="lineno" valign="top"></td></tr>
248      <tr><td class="lineno" valign="top"></td><td class="left">   pathnames, and of representations as being a copy of the contents of</td><td> </td><td class="right">   pathnames, and of representations as being a copy of the contents of</td><td class="lineno" valign="top"></td></tr>
249      <tr><td class="lineno" valign="top"></td><td class="left">   such files.  In fact, that is how many resources are implemented (see</td><td> </td><td class="right">   such files.  In fact, that is how many resources are implemented (see</td><td class="lineno" valign="top"></td></tr>
250      <tr><td class="lineno" valign="top"></td><td class="left">   Section 9.1 for related security considerations).  However, there are</td><td> </td><td class="right">   Section 9.1 for related security considerations).  However, there are</td><td class="lineno" valign="top"></td></tr>
251      <tr><td class="lineno" valign="top"></td><td class="left">   no such limitations in practice.  The HTTP interface for a resource</td><td> </td><td class="right">   no such limitations in practice.  The HTTP interface for a resource</td><td class="lineno" valign="top"></td></tr>
252      <tr><td class="lineno" valign="top"></td><td class="left">   is just as likely to be implemented as a tree of content objects, a</td><td> </td><td class="right">   is just as likely to be implemented as a tree of content objects, a</td><td class="lineno" valign="top"></td></tr>
253      <tr><td class="lineno" valign="top"></td><td class="left">   programmatic view on various database records, or a gateway to other</td><td> </td><td class="right">   programmatic view on various database records, or a gateway to other</td><td class="lineno" valign="top"></td></tr>
254      <tr><td class="lineno" valign="top"></td><td class="left">   information systems.  Even when the URI mapping mechanism is tied to</td><td> </td><td class="right">   information systems.  Even when the URI mapping mechanism is tied to</td><td class="lineno" valign="top"></td></tr>
255      <tr><td class="lineno" valign="top"></td><td class="left">   a filesystem, an origin server might be configured to execute the</td><td> </td><td class="right">   a filesystem, an origin server might be configured to execute the</td><td class="lineno" valign="top"></td></tr>
256      <tr><td class="lineno" valign="top"></td><td class="left">   files with the request as input and send the output as the</td><td> </td><td class="right">   files with the request as input and send the output as the</td><td class="lineno" valign="top"></td></tr>
257      <tr><td><a name="diff0011" /></td></tr>
258      <tr><td class="lineno" valign="top"></td><td class="lblock">   representation, rather th<span class="delete">e</span>n transfer the files directly.  Regardless,</td><td> </td><td class="rblock">   representation, rather th<span class="insert">a</span>n transfer the files directly.  Regardless,</td><td class="lineno" valign="top"></td></tr>
259      <tr><td class="lineno" valign="top"></td><td class="left">   only the origin server needs to know how each of its resource</td><td> </td><td class="right">   only the origin server needs to know how each of its resource</td><td class="lineno" valign="top"></td></tr>
260      <tr><td><a name="diff0012" /></td></tr>
261      <tr><td class="lineno" valign="top"></td><td class="lblock">   identifiers correspond to an implementation, and how each</td><td> </td><td class="rblock">   identifiers correspond<span class="insert">s</span> to an implementation, and how each</td><td class="lineno" valign="top"></td></tr>
262      <tr><td class="lineno" valign="top"></td><td class="left">   implementation manages to select and send a current representation of</td><td> </td><td class="right">   implementation manages to select and send a current representation of</td><td class="lineno" valign="top"></td></tr>
263      <tr><td class="lineno" valign="top"></td><td class="left">   the target resource in a response to GET.</td><td> </td><td class="right">   the target resource in a response to GET.</td><td class="lineno" valign="top"></td></tr>
264      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
265      <tr><td class="lineno" valign="top"></td><td class="left">   A client can alter the semantics of GET to be a "range request",</td><td> </td><td class="right">   A client can alter the semantics of GET to be a "range request",</td><td class="lineno" valign="top"></td></tr>
266      <tr><td class="lineno" valign="top"></td><td class="left">   requesting transfer of only some part(s) of the selected</td><td> </td><td class="right">   requesting transfer of only some part(s) of the selected</td><td class="lineno" valign="top"></td></tr>
267      <tr><td class="lineno" valign="top"></td><td class="left">   representation, by sending a Range header field in the request</td><td> </td><td class="right">   representation, by sending a Range header field in the request</td><td class="lineno" valign="top"></td></tr>
268      <tr><td class="lineno" valign="top"></td><td class="left">   ([Part5]).</td><td> </td><td class="right">   ([Part5]).</td><td class="lineno" valign="top"></td></tr>
269      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
270      <tr><td class="lineno" valign="top"></td><td class="left">   A payload within a GET request message has no defined semantics;</td><td> </td><td class="right">   A payload within a GET request message has no defined semantics;</td><td class="lineno" valign="top"></td></tr>
271      <tr><td class="lineno" valign="top"></td><td class="left">   sending a payload body on a GET request might cause some existing</td><td> </td><td class="right">   sending a payload body on a GET request might cause some existing</td><td class="lineno" valign="top"></td></tr>
272      <tr><td class="lineno"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno"></td></tr>
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274      <tr><td class="lineno" valign="top"></td><td class="left">     accept-ext     = OWS ";" OWS token [ "=" word ]</td><td> </td><td class="right">     accept-ext     = OWS ";" OWS token [ "=" word ]</td><td class="lineno" valign="top"></td></tr>
275      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
276      <tr><td class="lineno" valign="top"></td><td class="left">   The asterisk "*" character is used to group media types into ranges,</td><td> </td><td class="right">   The asterisk "*" character is used to group media types into ranges,</td><td class="lineno" valign="top"></td></tr>
277      <tr><td class="lineno" valign="top"></td><td class="left">   with "*/*" indicating all media types and "type/*" indicating all</td><td> </td><td class="right">   with "*/*" indicating all media types and "type/*" indicating all</td><td class="lineno" valign="top"></td></tr>
278      <tr><td class="lineno" valign="top"></td><td class="left">   subtypes of that type.  The media-range can include media type</td><td> </td><td class="right">   subtypes of that type.  The media-range can include media type</td><td class="lineno" valign="top"></td></tr>
279      <tr><td class="lineno" valign="top"></td><td class="left">   parameters that are applicable to that range.</td><td> </td><td class="right">   parameters that are applicable to that range.</td><td class="lineno" valign="top"></td></tr>
280      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
281      <tr><td class="lineno" valign="top"></td><td class="left">   Each media-range might be followed by zero or more applicable media</td><td> </td><td class="right">   Each media-range might be followed by zero or more applicable media</td><td class="lineno" valign="top"></td></tr>
282      <tr><td class="lineno" valign="top"></td><td class="left">   type parameters (e.g., charset), an optional "q" parameter for</td><td> </td><td class="right">   type parameters (e.g., charset), an optional "q" parameter for</td><td class="lineno" valign="top"></td></tr>
283      <tr><td class="lineno" valign="top"></td><td class="left">   indicating a relative weight (Section 5.3.1), and then zero or more</td><td> </td><td class="right">   indicating a relative weight (Section 5.3.1), and then zero or more</td><td class="lineno" valign="top"></td></tr>
284      <tr><td><a name="diff0013" /></td></tr>
285      <tr><td class="lineno" valign="top"></td><td class="lblock">   extension parameters.  The "q" parameter is necessary if any <span class="delete">accept-</span></td><td> </td><td class="rblock">   extension parameters.  The "q" parameter is necessary if any</td><td class="lineno" valign="top"></td></tr>
286      <tr><td class="lineno" valign="top"></td><td class="lblock"><span class="delete">   ext</span> are present, since it acts as a separator between the two</td><td> </td><td class="rblock">   <span class="insert">extensions (accept-ext)</span> are present, since it acts as a separator</td><td class="lineno" valign="top"></td></tr>
287      <tr><td class="lineno" valign="top"></td><td class="lblock">   parameter sets.</td><td> </td><td class="rblock">   between the two parameter sets.</td><td class="lineno" valign="top"></td></tr>
288      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
289      <tr><td class="lineno" valign="top"></td><td class="left">      Note: Use of the "q" parameter name to separate media type</td><td> </td><td class="right">      Note: Use of the "q" parameter name to separate media type</td><td class="lineno" valign="top"></td></tr>
290      <tr><td class="lineno" valign="top"></td><td class="left">      parameters from Accept extension parameters is due to historical</td><td> </td><td class="right">      parameters from Accept extension parameters is due to historical</td><td class="lineno" valign="top"></td></tr>
291      <tr><td class="lineno" valign="top"></td><td class="left">      practice.  Although this prevents any media type parameter named</td><td> </td><td class="right">      practice.  Although this prevents any media type parameter named</td><td class="lineno" valign="top"></td></tr>
292      <tr><td class="lineno" valign="top"></td><td class="left">      "q" from being used with a media range, such an event is believed</td><td> </td><td class="right">      "q" from being used with a media range, such an event is believed</td><td class="lineno" valign="top"></td></tr>
293      <tr><td class="lineno" valign="top"></td><td class="left">      to be unlikely given the lack of any "q" parameters in the IANA</td><td> </td><td class="right">      to be unlikely given the lack of any "q" parameters in the IANA</td><td class="lineno" valign="top"></td></tr>
294      <tr><td class="lineno" valign="top"></td><td class="left">      media type registry and the rare usage of any media type</td><td> </td><td class="right">      media type registry and the rare usage of any media type</td><td class="lineno" valign="top"></td></tr>
295      <tr><td class="lineno" valign="top"></td><td class="left">      parameters in Accept.  Future media types are discouraged from</td><td> </td><td class="right">      parameters in Accept.  Future media types are discouraged from</td><td class="lineno" valign="top"></td></tr>
296      <tr><td class="lineno" valign="top"></td><td class="left">      registering any parameter named "q".</td><td> </td><td class="right">      registering any parameter named "q".</td><td class="lineno" valign="top"></td></tr>
297      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
298      <tr><td class="lineno" valign="top"></td><td class="left">   The example</td><td> </td><td class="right">   The example</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">     Accept: audio/*; q=0.2, audio/basic</td><td> </td><td class="right">     Accept: audio/*; q=0.2, audio/basic</td><td class="lineno" valign="top"></td></tr>
301      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
302      <tr><td class="lineno" valign="top"></td><td class="left">   SHOULD be interpreted as "I prefer audio/basic, but send me any audio</td><td> </td><td class="right">   SHOULD be interpreted as "I prefer audio/basic, but send me any audio</td><td class="lineno" valign="top"></td></tr>
303      <tr><td class="lineno" valign="top"></td><td class="left">   type if it is the best available after an 80% mark-down in quality".</td><td> </td><td class="right">   type if it is the best available after an 80% mark-down in quality".</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">   A request without any Accept header field implies that the user agent</td><td> </td><td class="right">   A request without any Accept header field implies that the user agent</td><td class="lineno" valign="top"></td></tr>
306      <tr><td><a name="diff0014" /></td></tr>
307      <tr><td class="lineno" valign="top"></td><td class="lblock">   will accept any media type in response.  If <span class="delete">an Accept</span> header field is</td><td> </td><td class="rblock">   will accept any media type in response.  If <span class="insert">the</span> header field is</td><td class="lineno" valign="top"></td></tr>
308      <tr><td class="lineno" valign="top"></td><td class="left">   present in a request and none of the available representations for</td><td> </td><td class="right">   present in a request and none of the available representations for</td><td class="lineno" valign="top"></td></tr>
309      <tr><td class="lineno" valign="top"></td><td class="left">   the response have a media type that is listed as acceptable, the</td><td> </td><td class="right">   the response have a media type that is listed as acceptable, the</td><td class="lineno" valign="top"></td></tr>
310      <tr><td><a name="diff0015" /></td></tr>
311      <tr><td class="lineno" valign="top"></td><td class="lblock">   origin server <span class="delete">MAY</span> either honor the <span class="delete">Accept</span> header field by sending a</td><td> </td><td class="rblock">   origin server <span class="insert">can</span> either honor the header field by sending a 406 (Not</td><td class="lineno" valign="top"></td></tr>
312      <tr><td class="lineno" valign="top"></td><td class="lblock">   406 (Not Acceptable) response or disregard the <span class="delete">Accept</span> header field by</td><td> </td><td class="rblock">   Acceptable) response or disregard the header field by treating the</td><td class="lineno" valign="top"></td></tr>
313      <tr><td class="lineno" valign="top"></td><td class="lblock">   treating the response as if it is not subject to content negotiation.</td><td> </td><td class="rblock">   response as if it is not subject to content negotiation.</td><td class="lineno" valign="top"></td></tr>
314      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
315      <tr><td class="lineno" valign="top"></td><td class="left">   A more elaborate example is</td><td> </td><td class="right">   A more elaborate example is</td><td class="lineno" valign="top"></td></tr>
316      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
317      <tr><td class="lineno" valign="top"></td><td class="left">     Accept: text/plain; q=0.5, text/html,</td><td> </td><td class="right">     Accept: text/plain; q=0.5, text/html,</td><td class="lineno" valign="top"></td></tr>
318      <tr><td class="lineno" valign="top"></td><td class="left">             text/x-dvi; q=0.8, text/x-c</td><td> </td><td class="right">             text/x-dvi; q=0.8, text/x-c</td><td class="lineno" valign="top"></td></tr>
319      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
320      <tr><td class="lineno" valign="top"></td><td class="left">   Verbally, this would be interpreted as "text/html and text/x-c are</td><td> </td><td class="right">   Verbally, this would be interpreted as "text/html and text/x-c are</td><td class="lineno" valign="top"></td></tr>
321      <tr><td class="lineno" valign="top"></td><td class="left">   the equally preferred media types, but if they do not exist, then</td><td> </td><td class="right">   the equally preferred media types, but if they do not exist, then</td><td class="lineno" valign="top"></td></tr>
322      <tr><td class="lineno" valign="top"></td><td class="left">   send the text/x-dvi representation, and if that does not exist, send</td><td> </td><td class="right">   send the text/x-dvi representation, and if that does not exist, send</td><td class="lineno" valign="top"></td></tr>
323      <tr><td class="lineno" valign="top"></td><td class="left">   the text/plain representation".</td><td> </td><td class="right">   the text/plain representation".</td><td class="lineno" valign="top"></td></tr>
324      <tr><td class="lineno"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno"></td></tr>
325      <tr bgcolor="gray" ><td></td><th><a name="part-l9" /><small>skipping to change at</small><em> page 41, line 5</em></th><th> </th><th><a name="part-r9" /><small>skipping to change at</small><em> page 41, line 5</em></th><td></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">   A request without any Accept-Charset header field implies that the</td><td> </td><td class="right">   A request without any Accept-Charset header field implies that the</td><td class="lineno" valign="top"></td></tr>
328      <tr><td class="lineno" valign="top"></td><td class="left">   user agent will accept any charset in response.  Most general-purpose</td><td> </td><td class="right">   user agent will accept any charset in response.  Most general-purpose</td><td class="lineno" valign="top"></td></tr>
329      <tr><td class="lineno" valign="top"></td><td class="left">   user agents do not send Accept-Charset, unless specifically</td><td> </td><td class="right">   user agents do not send Accept-Charset, unless specifically</td><td class="lineno" valign="top"></td></tr>
330      <tr><td class="lineno" valign="top"></td><td class="left">   configured to do so, because a detailed list of supported charsets</td><td> </td><td class="right">   configured to do so, because a detailed list of supported charsets</td><td class="lineno" valign="top"></td></tr>
331      <tr><td class="lineno" valign="top"></td><td class="left">   makes it easier for a server to identify an individual by virtue of</td><td> </td><td class="right">   makes it easier for a server to identify an individual by virtue of</td><td class="lineno" valign="top"></td></tr>
332      <tr><td class="lineno" valign="top"></td><td class="left">   the user agent's request characteristics (Section 9.6).</td><td> </td><td class="right">   the user agent's request characteristics (Section 9.6).</td><td class="lineno" valign="top"></td></tr>
333      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
334      <tr><td class="lineno" valign="top"></td><td class="left">   If an Accept-Charset header field is present in a request and none of</td><td> </td><td class="right">   If an Accept-Charset header field is present in a request and none of</td><td class="lineno" valign="top"></td></tr>
335      <tr><td class="lineno" valign="top"></td><td class="left">   the available representations for the response has a charset that is</td><td> </td><td class="right">   the available representations for the response has a charset that is</td><td class="lineno" valign="top"></td></tr>
336      <tr><td><a name="diff0016" /></td></tr>
337      <tr><td class="lineno" valign="top"></td><td class="lblock">   listed as acceptable, the origin server <span class="delete">MAY</span> either honor the <span class="delete">Accept-</span></td><td> </td><td class="rblock">   listed as acceptable, the origin server <span class="insert">can</span> either honor the header</td><td class="lineno" valign="top"></td></tr>
338      <tr><td class="lineno" valign="top"></td><td class="lblock"><span class="delete">   Charset</span> header field, by sending a 406 (Not Acceptable) response, or</td><td> </td><td class="rblock">   field, by sending a 406 (Not Acceptable) response, or disregard the</td><td class="lineno" valign="top"></td></tr>
339      <tr><td class="lineno" valign="top"></td><td class="lblock">   disregard the <span class="delete">Accept-Charset</span> header field by treating the resource as</td><td> </td><td class="rblock">   header field by treating the resource as if it is not subject to</td><td class="lineno" valign="top"></td></tr>
340      <tr><td class="lineno" valign="top"></td><td class="lblock">   if it is not subject to content negotiation.</td><td> </td><td class="rblock">   content negotiation.</td><td class="lineno" valign="top"></td></tr>
341      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
342      <tr><td class="lineno" valign="top"></td><td class="left">5.3.4.  Accept-Encoding</td><td> </td><td class="right">5.3.4.  Accept-Encoding</td><td class="lineno" valign="top"></td></tr>
343      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
344      <tr><td class="lineno" valign="top"></td><td class="left">   The "Accept-Encoding" header field can be used by user agents to</td><td> </td><td class="right">   The "Accept-Encoding" header field can be used by user agents to</td><td class="lineno" valign="top"></td></tr>
345      <tr><td class="lineno" valign="top"></td><td class="left">   indicate what response content-codings (Section 3.1.2.1) are</td><td> </td><td class="right">   indicate what response content-codings (Section 3.1.2.1) are</td><td class="lineno" valign="top"></td></tr>
346      <tr><td class="lineno" valign="top"></td><td class="left">   acceptable in the response.  An "identity" token is used as a synonym</td><td> </td><td class="right">   acceptable in the response.  An "identity" token is used as a synonym</td><td class="lineno" valign="top"></td></tr>
347      <tr><td class="lineno" valign="top"></td><td class="left">   for "no encoding" in order to communicate when no encoding is</td><td> </td><td class="right">   for "no encoding" in order to communicate when no encoding is</td><td class="lineno" valign="top"></td></tr>
348      <tr><td class="lineno" valign="top"></td><td class="left">   preferred.</td><td> </td><td class="right">   preferred.</td><td class="lineno" valign="top"></td></tr>
349      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
350      <tr><td class="lineno" valign="top"></td><td class="left">     Accept-Encoding  = #( codings [ weight ] )</td><td> </td><td class="right">     Accept-Encoding  = #( codings [ weight ] )</td><td class="lineno" valign="top"></td></tr>
351      <tr><td class="lineno"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno"></td></tr>
352      <tr bgcolor="gray" ><td></td><th><a name="part-l10" /><small>skipping to change at</small><em> page 42, line 43</em></th><th> </th><th><a name="part-r10" /><small>skipping to change at</small><em> page 42, line 43</em></th><td></td></tr>
353      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
354      <tr><td class="lineno" valign="top"></td><td class="left">   Each language-range can be given an associated quality value</td><td> </td><td class="right">   Each language-range can be given an associated quality value</td><td class="lineno" valign="top"></td></tr>
355      <tr><td class="lineno" valign="top"></td><td class="left">   representing an estimate of the user's preference for the languages</td><td> </td><td class="right">   representing an estimate of the user's preference for the languages</td><td class="lineno" valign="top"></td></tr>
356      <tr><td class="lineno" valign="top"></td><td class="left">   specified by that range, as defined in Section 5.3.1.  For example,</td><td> </td><td class="right">   specified by that range, as defined in Section 5.3.1.  For example,</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">     Accept-Language: da, en-gb;q=0.8, en;q=0.7</td><td> </td><td class="right">     Accept-Language: da, en-gb;q=0.8, en;q=0.7</td><td class="lineno" valign="top"></td></tr>
359      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
360      <tr><td class="lineno" valign="top"></td><td class="left">   would mean: "I prefer Danish, but will accept British English and</td><td> </td><td class="right">   would mean: "I prefer Danish, but will accept British English and</td><td class="lineno" valign="top"></td></tr>
361      <tr><td class="lineno" valign="top"></td><td class="left">   other types of English".</td><td> </td><td class="right">   other types of English".</td><td class="lineno" valign="top"></td></tr>
362      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
363      <tr><td><a name="diff0017" /></td></tr>
364      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock">   <span class="insert">A request without any Accept-Language header field implies that the</span></td><td class="lineno" valign="top"></td></tr>
365      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">   user agent will accept any language in response.  If the header field</span></td><td class="lineno" valign="top"></td></tr>
366      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">   is present in a request and none of the available representations for</span></td><td class="lineno" valign="top"></td></tr>
367      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">   the response have a matching language tag, the origin server can</span></td><td class="lineno" valign="top"></td></tr>
368      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">   either disregard the header field by treating the response as if it</span></td><td class="lineno" valign="top"></td></tr>
369      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">   is not subject to content negotiation, or honor the header field by</span></td><td class="lineno" valign="top"></td></tr>
370      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">   sending a 406 (Not Acceptable) response.  However, the latter is not</span></td><td class="lineno" valign="top"></td></tr>
371      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">   encouraged, as doing so can prevent users from accessing content that</span></td><td class="lineno" valign="top"></td></tr>
372      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">   they might be able to use (with translation software, for example).</span></td><td class="lineno" valign="top"></td></tr>
373      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock">                                                                         </td><td class="lineno" valign="top"></td></tr>
374      <tr><td class="lineno" valign="top"></td><td class="left">   Note that some recipients treat the order in which language tags are</td><td> </td><td class="right">   Note that some recipients treat the order in which language tags are</td><td class="lineno" valign="top"></td></tr>
375      <tr><td class="lineno" valign="top"></td><td class="left">   listed as an indication of descending priority, particularly for tags</td><td> </td><td class="right">   listed as an indication of descending priority, particularly for tags</td><td class="lineno" valign="top"></td></tr>
376      <tr><td class="lineno" valign="top"></td><td class="left">   that are assigned equal quality values (no value is the same as q=1).</td><td> </td><td class="right">   that are assigned equal quality values (no value is the same as q=1).</td><td class="lineno" valign="top"></td></tr>
377      <tr><td class="lineno" valign="top"></td><td class="left">   However, this behavior cannot be relied upon.  For consistency and to</td><td> </td><td class="right">   However, this behavior cannot be relied upon.  For consistency and to</td><td class="lineno" valign="top"></td></tr>
378      <tr><td class="lineno" valign="top"></td><td class="left">   maximize interoperability, many user agents assign each language tag</td><td> </td><td class="right">   maximize interoperability, many user agents assign each language tag</td><td class="lineno" valign="top"></td></tr>
379      <tr><td class="lineno" valign="top"></td><td class="left">   a unique quality value while also listing them in order of decreasing</td><td> </td><td class="right">   a unique quality value while also listing them in order of decreasing</td><td class="lineno" valign="top"></td></tr>
380      <tr><td class="lineno" valign="top"></td><td class="left">   quality.  Additional discussion of language priority lists can be</td><td> </td><td class="right">   quality.  Additional discussion of language priority lists can be</td><td class="lineno" valign="top"></td></tr>
381      <tr><td class="lineno" valign="top"></td><td class="left">   found in Section 2.3 of [RFC4647].</td><td> </td><td class="right">   found in Section 2.3 of [RFC4647].</td><td class="lineno" valign="top"></td></tr>
382      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
383      <tr><td class="lineno" valign="top"></td><td class="left">   For matching, Section 3 of [RFC4647] defines several matching</td><td> </td><td class="right">   For matching, Section 3 of [RFC4647] defines several matching</td><td class="lineno" valign="top"></td></tr>
384      <tr><td class="lineno"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno"></td></tr>
385      <tr bgcolor="gray" ><td></td><th><a name="part-l11" /><small>skipping to change at</small><em> page 62, line 37</em></th><th> </th><th><a name="part-r11" /><small>skipping to change at</small><em> page 62, line 37</em></th><td></td></tr>
386      <tr><td class="lineno" valign="top"></td><td class="left">6.6.5.  504 Gateway Timeout</td><td> </td><td class="right">6.6.5.  504 Gateway Timeout</td><td class="lineno" valign="top"></td></tr>
387      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
388      <tr><td class="lineno" valign="top"></td><td class="left">   The 504 (Gateway Timeout) status code indicates that the server,</td><td> </td><td class="right">   The 504 (Gateway Timeout) status code indicates that the server,</td><td class="lineno" valign="top"></td></tr>
389      <tr><td class="lineno" valign="top"></td><td class="left">   while acting as a gateway or proxy, did not receive a timely response</td><td> </td><td class="right">   while acting as a gateway or proxy, did not receive a timely response</td><td class="lineno" valign="top"></td></tr>
390      <tr><td class="lineno" valign="top"></td><td class="left">   from an upstream server it needed to access in order to complete the</td><td> </td><td class="right">   from an upstream server it needed to access in order to complete the</td><td class="lineno" valign="top"></td></tr>
391      <tr><td class="lineno" valign="top"></td><td class="left">   request.</td><td> </td><td class="right">   request.</td><td class="lineno" valign="top"></td></tr>
392      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
393      <tr><td class="lineno" valign="top"></td><td class="left">6.6.6.  505 HTTP Version Not Supported</td><td> </td><td class="right">6.6.6.  505 HTTP Version Not Supported</td><td class="lineno" valign="top"></td></tr>
394      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
395      <tr><td class="lineno" valign="top"></td><td class="left">   The 505 (HTTP Version Not Supported) status code indicates that the</td><td> </td><td class="right">   The 505 (HTTP Version Not Supported) status code indicates that the</td><td class="lineno" valign="top"></td></tr>
396      <tr><td><a name="diff0018" /></td></tr>
397      <tr><td class="lineno" valign="top"></td><td class="lblock">   server does not support, or refuses to support, the <span class="delete">protocol</span> version</td><td> </td><td class="rblock">   server does not support, or refuses to support, the <span class="insert">major</span> version <span class="insert">of</span></td><td class="lineno" valign="top"></td></tr>
398      <tr><td class="lineno" valign="top"></td><td class="lblock">   that was used in the request message.  The server is indicating that</td><td> </td><td class="rblock"><span class="insert">   HTTP</span> that was used in the request message.  The server is indicating</td><td class="lineno" valign="top"></td></tr>
399      <tr><td class="lineno" valign="top"></td><td class="lblock">   it is unable or unwilling to complete the request using the same</td><td> </td><td class="rblock">   that it is unable or unwilling to complete the request using the same</td><td class="lineno" valign="top"></td></tr>
400      <tr><td class="lineno" valign="top"></td><td class="left">   major version as the client, as described in Section 2.6 of [Part1],</td><td> </td><td class="right">   major version as the client, as described in Section 2.6 of [Part1],</td><td class="lineno" valign="top"></td></tr>
401      <tr><td class="lineno" valign="top"></td><td class="left">   other than with this error message.  The server SHOULD generate a</td><td> </td><td class="right">   other than with this error message.  The server SHOULD generate a</td><td class="lineno" valign="top"></td></tr>
402      <tr><td class="lineno" valign="top"></td><td class="left">   representation for the 505 response that describes why that version</td><td> </td><td class="right">   representation for the 505 response that describes why that version</td><td class="lineno" valign="top"></td></tr>
403      <tr><td class="lineno" valign="top"></td><td class="left">   is not supported and what other protocols are supported by that</td><td> </td><td class="right">   is not supported and what other protocols are supported by that</td><td class="lineno" valign="top"></td></tr>
404      <tr><td class="lineno" valign="top"></td><td class="left">   server.</td><td> </td><td class="right">   server.</td><td class="lineno" valign="top"></td></tr>
405      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
406      <tr><td class="lineno" valign="top"></td><td class="left">7.  Response Header Fields</td><td> </td><td class="right">7.  Response Header Fields</td><td class="lineno" valign="top"></td></tr>
407      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
408      <tr><td class="lineno" valign="top"></td><td class="left">   The response header fields allow the server to pass additional</td><td> </td><td class="right">   The response header fields allow the server to pass additional</td><td class="lineno" valign="top"></td></tr>
409      <tr><td class="lineno" valign="top"></td><td class="left">   information about the response beyond what is placed in the status-</td><td> </td><td class="right">   information about the response beyond what is placed in the status-</td><td class="lineno" valign="top"></td></tr>
410      <tr><td class="lineno"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno"></td></tr>
411      <tr bgcolor="gray" ><td></td><th><a name="part-l12" /><small>skipping to change at</small><em> page 68, line 41</em></th><th> </th><th><a name="part-r12" /><small>skipping to change at</small><em> page 68, line 41</em></th><td></td></tr>
412      <tr><td class="lineno" valign="top"></td><td class="left">   Two examples of its use are</td><td> </td><td class="right">   Two examples of its use are</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">     Retry-After: Fri, 31 Dec 1999 23:59:59 GMT</td><td> </td><td class="right">     Retry-After: Fri, 31 Dec 1999 23:59:59 GMT</td><td class="lineno" valign="top"></td></tr>
415      <tr><td class="lineno" valign="top"></td><td class="left">     Retry-After: 120</td><td> </td><td class="right">     Retry-After: 120</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 class="lineno" valign="top"></td><td class="left">   In the latter example, the delay is 2 minutes.</td><td> </td><td class="right">   In the latter example, the delay is 2 minutes.</td><td class="lineno" valign="top"></td></tr>
418      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
419      <tr><td class="lineno" valign="top"></td><td class="left">7.1.4.  Vary</td><td> </td><td class="right">7.1.4.  Vary</td><td class="lineno" valign="top"></td></tr>
420      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
421      <tr><td class="lineno" valign="top"></td><td class="left">   The "Vary" header field describes what parts of a request message,</td><td> </td><td class="right">   The "Vary" header field describes what parts of a request message,</td><td class="lineno" valign="top"></td></tr>
422      <tr><td><a name="diff0019" /></td></tr>
423      <tr><td class="lineno" valign="top"></td><td class="lblock">   aside from the <span class="delete">method</span> and request target, might influence the origin</td><td> </td><td class="rblock">   aside from the <span class="insert">method, the Host header field</span> and <span class="insert">the</span> request target,</td><td class="lineno" valign="top"></td></tr>
424      <tr><td class="lineno" valign="top"></td><td class="lblock">   server's process for selecting and representing the response.  The</td><td> </td><td class="rblock">   might influence the origin server's process for selecting and</td><td class="lineno" valign="top"></td></tr>
425      <tr><td class="lineno" valign="top"></td><td class="lblock">   value consists of either a single asterisk ("*") or a list of header</td><td> </td><td class="rblock">   representing the response.  The value consists of either a single</td><td class="lineno" valign="top"></td></tr>
426      <tr><td class="lineno" valign="top"></td><td class="lblock">   field names (case-insensitive).</td><td> </td><td class="rblock">   asterisk ("*") or a list of header field names (case-insensitive).</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">     Vary = "*" / 1#field-name</td><td> </td><td class="right">     Vary = "*" / 1#field-name</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">   A Vary field value of "*" signals that anything about the request</td><td> </td><td class="right">   A Vary field value of "*" signals that anything about the request</td><td class="lineno" valign="top"></td></tr>
431      <tr><td class="lineno" valign="top"></td><td class="left">   might play a role in selecting the response representation, possibly</td><td> </td><td class="right">   might play a role in selecting the response representation, possibly</td><td class="lineno" valign="top"></td></tr>
432      <tr><td class="lineno" valign="top"></td><td class="left">   including elements outside the message syntax (e.g., the client's</td><td> </td><td class="right">   including elements outside the message syntax (e.g., the client's</td><td class="lineno" valign="top"></td></tr>
433      <tr><td class="lineno" valign="top"></td><td class="left">   network address), and thus a recipient will not be able to determine</td><td> </td><td class="right">   network address), and thus a recipient will not be able to determine</td><td class="lineno" valign="top"></td></tr>
434      <tr><td class="lineno" valign="top"></td><td class="left">   whether this response is appropriate for a later request without</td><td> </td><td class="right">   whether this response is appropriate for a later request without</td><td class="lineno" valign="top"></td></tr>
435      <tr><td class="lineno" valign="top"></td><td class="left">   forwarding the request to the origin server.  A proxy MUST NOT</td><td> </td><td class="right">   forwarding the request to the origin server.  A proxy MUST NOT</td><td class="lineno" valign="top"></td></tr>
436      <tr><td class="lineno" valign="top"></td><td class="left">   generate a Vary field with a "*" value.</td><td> </td><td class="right">   generate a Vary field with a "*" value.</td><td class="lineno" valign="top"></td></tr>
437      <tr><td class="lineno"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno"></td></tr>
438      <tr bgcolor="gray" ><td></td><th><a name="part-l13" /><small>skipping to change at</small><em> page 72, line 17</em></th><th> </th><th><a name="part-r13" /><small>skipping to change at</small><em> page 72, line 17</em></th><td></td></tr>
439      <tr><td class="lineno" valign="top"></td><td class="left">   subproducts by third parties.  Overly long and detailed Server field</td><td> </td><td class="right">   subproducts by third parties.  Overly long and detailed Server field</td><td class="lineno" valign="top"></td></tr>
440      <tr><td class="lineno" valign="top"></td><td class="left">   values increase response latency and potentially reveal internal</td><td> </td><td class="right">   values increase response latency and potentially reveal internal</td><td class="lineno" valign="top"></td></tr>
441      <tr><td class="lineno" valign="top"></td><td class="left">   implementation details that might make it (slightly) easier for</td><td> </td><td class="right">   implementation details that might make it (slightly) easier for</td><td class="lineno" valign="top"></td></tr>
442      <tr><td class="lineno" valign="top"></td><td class="left">   attackers to find and exploit known security holes.</td><td> </td><td class="right">   attackers to find and exploit known security holes.</td><td class="lineno" valign="top"></td></tr>
443      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
444      <tr><td class="lineno" valign="top"></td><td class="left">8.  IANA Considerations</td><td> </td><td class="right">8.  IANA Considerations</td><td class="lineno" valign="top"></td></tr>
445      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
446      <tr><td class="lineno" valign="top"></td><td class="left">8.1.  Method Registry</td><td> </td><td class="right">8.1.  Method Registry</td><td class="lineno" valign="top"></td></tr>
447      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
448      <tr><td class="lineno" valign="top"></td><td class="left">   The HTTP Method Registry defines the name space for the request</td><td> </td><td class="right">   The HTTP Method Registry defines the name space for the request</td><td class="lineno" valign="top"></td></tr>
449      <tr><td><a name="diff0020" /></td></tr>
450      <tr><td class="lineno" valign="top"></td><td class="lblock">   method token (Section 4).  The method registry <span class="delete">is</span> maintained at</td><td> </td><td class="rblock">   method token (Section 4).  The method registry <span class="insert">will be created and</span></td><td class="lineno" valign="top"></td></tr>
451      <tr><td class="lineno" valign="top"></td><td class="lblock">   &lt;http://www.iana.org/assignments/http-methods&gt;.</td><td> </td><td class="rblock">   maintained at &lt;http://www.iana.org/assignments/http-methods&gt;.</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">8.1.1.  Procedure</td><td> </td><td class="right">8.1.1.  Procedure</td><td class="lineno" valign="top"></td></tr>
454      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
455      <tr><td class="lineno" valign="top"></td><td class="left">   HTTP method registrations MUST include the following fields:</td><td> </td><td class="right">   HTTP method registrations MUST include the following fields:</td><td class="lineno" valign="top"></td></tr>
456      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
457      <tr><td class="lineno" valign="top"></td><td class="left">   o  Method Name (see Section 4)</td><td> </td><td class="right">   o  Method Name (see Section 4)</td><td class="lineno" valign="top"></td></tr>
458      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
459      <tr><td class="lineno" valign="top"></td><td class="left">   o  Safe ("yes" or "no", see Section 4.2.1)</td><td> </td><td class="right">   o  Safe ("yes" or "no", see Section 4.2.1)</td><td class="lineno" valign="top"></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">   o  Idempotent ("yes" or "no", see Section 4.2.2)</td><td> </td><td class="right">   o  Idempotent ("yes" or "no", see Section 4.2.2)</td><td class="lineno" valign="top"></td></tr>
462      <tr><td class="lineno"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno"></td></tr>
463      <tr bgcolor="gray" ><td></td><th><a name="part-l14" /><small>skipping to change at</small><em> page 73, line 16</em></th><th> </th><th><a name="part-r14" /><small>skipping to change at</small><em> page 73, line 16</em></th><td></td></tr>
464      <tr><td class="lineno" valign="top"></td><td class="left">   body if any is present in the request, and what refinements the</td><td> </td><td class="right">   body if any is present in the request, and what refinements the</td><td class="lineno" valign="top"></td></tr>
465      <tr><td class="lineno" valign="top"></td><td class="left">   method makes to header field or status code semantics.  If the new</td><td> </td><td class="right">   method makes to header field or status code semantics.  If the new</td><td class="lineno" valign="top"></td></tr>
466      <tr><td class="lineno" valign="top"></td><td class="left">   method is cacheable, its definition ought to describe how, and under</td><td> </td><td class="right">   method is cacheable, its definition ought to describe how, and under</td><td class="lineno" valign="top"></td></tr>
467      <tr><td class="lineno" valign="top"></td><td class="left">   what conditions, a cache can store a response and use it to satisfy a</td><td> </td><td class="right">   what conditions, a cache can store a response and use it to satisfy a</td><td class="lineno" valign="top"></td></tr>
468      <tr><td class="lineno" valign="top"></td><td class="left">   subsequent request.  The new method ought to describe whether it can</td><td> </td><td class="right">   subsequent request.  The new method ought to describe whether it can</td><td class="lineno" valign="top"></td></tr>
469      <tr><td class="lineno" valign="top"></td><td class="left">   be made conditional (Section 5.2) and, if so, how a server responds</td><td> </td><td class="right">   be made conditional (Section 5.2) and, if so, how a server responds</td><td class="lineno" valign="top"></td></tr>
470      <tr><td class="lineno" valign="top"></td><td class="left">   when the condition is false.  Likewise, if the new method might have</td><td> </td><td class="right">   when the condition is false.  Likewise, if the new method might have</td><td class="lineno" valign="top"></td></tr>
471      <tr><td class="lineno" valign="top"></td><td class="left">   some use for partial response semantics ([Part5]), it ought to</td><td> </td><td class="right">   some use for partial response semantics ([Part5]), it ought to</td><td class="lineno" valign="top"></td></tr>
472      <tr><td class="lineno" valign="top"></td><td class="left">   document this too.</td><td> </td><td class="right">   document this too.</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><a name="diff0021" /></td></tr>
475      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock">      <span class="insert">Note: Avoid defining a method name that starts with "M-", since</span></td><td class="lineno" valign="top"></td></tr>
476      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">      that prefix might be misinterpreted as having the semantics</span></td><td class="lineno" valign="top"></td></tr>
477      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">      assigned to it by [RFC2774].</span></td><td class="lineno" valign="top"></td></tr>
478      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock">                                                                         </td><td class="lineno" valign="top"></td></tr>
479      <tr><td class="lineno" valign="top"></td><td class="left">8.1.3.  Registrations</td><td> </td><td class="right">8.1.3.  Registrations</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">   The HTTP Method Registry shall be populated with the registrations</td><td> </td><td class="right">   The HTTP Method Registry shall be populated with the registrations</td><td class="lineno" valign="top"></td></tr>
482      <tr><td class="lineno" valign="top"></td><td class="left">   below:</td><td> </td><td class="right">   below:</td><td class="lineno" valign="top"></td></tr>
483      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
484      <tr><td class="lineno" valign="top"></td><td class="left">   +---------+------+------------+---------------+</td><td> </td><td class="right">   +---------+------+------------+---------------+</td><td class="lineno" valign="top"></td></tr>
485      <tr><td class="lineno" valign="top"></td><td class="left">   | Method  | Safe | Idempotent | Reference     |</td><td> </td><td class="right">   | Method  | Safe | Idempotent | Reference     |</td><td class="lineno" valign="top"></td></tr>
486      <tr><td class="lineno" valign="top"></td><td class="left">   +---------+------+------------+---------------+</td><td> </td><td class="right">   +---------+------+------------+---------------+</td><td class="lineno" valign="top"></td></tr>
487      <tr><td class="lineno" valign="top"></td><td class="left">   | CONNECT | no   | no         | Section 4.3.6 |</td><td> </td><td class="right">   | CONNECT | no   | no         | Section 4.3.6 |</td><td class="lineno" valign="top"></td></tr>
488      <tr><td class="lineno" valign="top"></td><td class="left">   | DELETE  | no   | yes        | Section 4.3.5 |</td><td> </td><td class="right">   | DELETE  | no   | yes        | Section 4.3.5 |</td><td class="lineno" valign="top"></td></tr>
489      <tr><td class="lineno"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno"></td></tr>
490      <tr bgcolor="gray" ><td></td><th><a name="part-l15" /><small>skipping to change at</small><em> page 73, line 40</em></th><th> </th><th><a name="part-r15" /><small>skipping to change at</small><em> page 73, line 44</em></th><td></td></tr>
491      <tr><td class="lineno" valign="top"></td><td class="left">   | PUT     | no   | yes        | Section 4.3.4 |</td><td> </td><td class="right">   | PUT     | no   | yes        | Section 4.3.4 |</td><td class="lineno" valign="top"></td></tr>
492      <tr><td class="lineno" valign="top"></td><td class="left">   | TRACE   | yes  | yes        | Section 4.3.8 |</td><td> </td><td class="right">   | TRACE   | yes  | yes        | Section 4.3.8 |</td><td class="lineno" valign="top"></td></tr>
493      <tr><td class="lineno" valign="top"></td><td class="left">   +---------+------+------------+---------------+</td><td> </td><td class="right">   +---------+------+------------+---------------+</td><td class="lineno" valign="top"></td></tr>
494      <tr><td class="lineno" valign="top"></td><td class="left"></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">8.2.  Status Code Registry</td><td> </td><td class="right">8.2.  Status Code Registry</td><td class="lineno" valign="top"></td></tr>
496      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
497      <tr><td class="lineno" valign="top"></td><td class="left">   The HTTP Status Code Registry defines the name space for the response</td><td> </td><td class="right">   The HTTP Status Code Registry defines the name space for the response</td><td class="lineno" valign="top"></td></tr>
498      <tr><td class="lineno" valign="top"></td><td class="left">   status-code token (Section 6).  The status code registry is</td><td> </td><td class="right">   status-code token (Section 6).  The status code registry is</td><td class="lineno" valign="top"></td></tr>
499      <tr><td class="lineno" valign="top"></td><td class="left">   maintained at &lt;http://www.iana.org/assignments/http-status-codes&gt;.</td><td> </td><td class="right">   maintained at &lt;http://www.iana.org/assignments/http-status-codes&gt;.</td><td class="lineno" valign="top"></td></tr>
500      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
501      <tr><td><a name="diff0022" /></td></tr>
502      <tr><td class="lineno" valign="top"></td><td class="lblock">   This <span class="delete">s</span>ection replaces the registration procedure for HTTP Status</td><td> </td><td class="rblock">   This <span class="insert">S</span>ection replaces the registration procedure for HTTP Status</td><td class="lineno" valign="top"></td></tr>
503      <tr><td class="lineno" valign="top"></td><td class="left">   Codes previously defined in Section 7.1 of [RFC2817].</td><td> </td><td class="right">   Codes previously defined in Section 7.1 of [RFC2817].</td><td class="lineno" valign="top"></td></tr>
504      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
505      <tr><td class="lineno" valign="top"></td><td class="left">8.2.1.  Procedure</td><td> </td><td class="right">8.2.1.  Procedure</td><td class="lineno" valign="top"></td></tr>
506      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
507      <tr><td><a name="diff0023" /></td></tr>
508      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock">   <span class="insert">A registration MUST include the following fields:</span></td><td class="lineno" valign="top"></td></tr>
509      <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>
510      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">   o  Status Code (3 digits)</span></td><td class="lineno" valign="top"></td></tr>
511      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert"></span></td><td class="lineno" valign="top"></td></tr>
512      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">   o  Short Description</span></td><td class="lineno" valign="top"></td></tr>
513      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert"></span></td><td class="lineno" valign="top"></td></tr>
514      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">   o  Pointer to specification text</span></td><td class="lineno" valign="top"></td></tr>
515      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock">                                                                         </td><td class="lineno" valign="top"></td></tr>
516      <tr><td class="lineno" valign="top"></td><td class="left">   Values to be added to the HTTP status code name space require IETF</td><td> </td><td class="right">   Values to be added to the HTTP status code name space require IETF</td><td class="lineno" valign="top"></td></tr>
517      <tr><td class="lineno" valign="top"></td><td class="left">   Review (see [RFC5226], Section 4.1).</td><td> </td><td class="right">   Review (see [RFC5226], Section 4.1).</td><td class="lineno" valign="top"></td></tr>
518      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
519      <tr><td class="lineno" valign="top"></td><td class="left">8.2.2.  Considerations for New Status Codes</td><td> </td><td class="right">8.2.2.  Considerations for New Status Codes</td><td class="lineno" valign="top"></td></tr>
520      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
521      <tr><td class="lineno" valign="top"></td><td class="left">   When it is necessary to express semantics for a response that are not</td><td> </td><td class="right">   When it is necessary to express semantics for a response that are not</td><td class="lineno" valign="top"></td></tr>
522      <tr><td class="lineno" valign="top"></td><td class="left">   defined by current status codes, a new status code can be registered.</td><td> </td><td class="right">   defined by current status codes, a new status code can be registered.</td><td class="lineno" valign="top"></td></tr>
523      <tr><td><a name="diff0024" /></td></tr>
524      <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>
525      <tr><td class="lineno" valign="top"></td><td class="left">   Status codes are generic; they are potentially applicable to any</td><td> </td><td class="right">   Status codes are generic; they are potentially applicable to any</td><td class="lineno" valign="top"></td></tr>
526      <tr><td class="lineno" valign="top"></td><td class="left">   resource, not just one particular media type, kind of resource, or</td><td> </td><td class="right">   resource, not just one particular media type, kind of resource, or</td><td class="lineno" valign="top"></td></tr>
527      <tr><td class="lineno" valign="top"></td><td class="left">   application of HTTP.  As such, it is preferred that new status codes</td><td> </td><td class="right">   application of HTTP.  As such, it is preferred that new status codes</td><td class="lineno" valign="top"></td></tr>
528      <tr><td class="lineno" valign="top"></td><td class="left">   be registered in a document that isn't specific to a single</td><td> </td><td class="right">   be registered in a document that isn't specific to a single</td><td class="lineno" valign="top"></td></tr>
529      <tr><td class="lineno" valign="top"></td><td class="left">   application.</td><td> </td><td class="right">   application.</td><td class="lineno" valign="top"></td></tr>
530      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
531      <tr><td class="lineno" valign="top"></td><td class="left">   New status codes are required to fall under one of the categories</td><td> </td><td class="right">   New status codes are required to fall under one of the categories</td><td class="lineno" valign="top"></td></tr>
532      <tr><td class="lineno" valign="top"></td><td class="left">   defined in Section 6.  To allow existing parsers to process the</td><td> </td><td class="right">   defined in Section 6.  To allow existing parsers to process the</td><td class="lineno" valign="top"></td></tr>
533      <tr><td class="lineno" valign="top"></td><td class="left">   response message, new status codes cannot disallow a payload,</td><td> </td><td class="right">   response message, new status codes cannot disallow a payload,</td><td class="lineno" valign="top"></td></tr>
534      <tr><td class="lineno" valign="top"></td><td class="left">   although they can mandate a zero-length payload body.</td><td> </td><td class="right">   although they can mandate a zero-length payload body.</td><td class="lineno" valign="top"></td></tr>
535      <tr><td class="lineno"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno"></td></tr>
536      <tr bgcolor="gray" ><td></td><th><a name="part-l16" /><small>skipping to change at</small><em> page 74, line 37</em></th><th> </th><th><a name="part-r16" /><small>skipping to change at</small><em> page 74, line 50</em></th><td></td></tr>
537      <tr><td class="lineno" valign="top"></td><td class="left">   are required, what fields can modify the semantics, and what header</td><td> </td><td class="right">   are required, what fields can modify the semantics, and what header</td><td class="lineno" valign="top"></td></tr>
538      <tr><td class="lineno" valign="top"></td><td class="left">   field semantics are further refined when used with the new status</td><td> </td><td class="right">   field semantics are further refined when used with the new status</td><td class="lineno" valign="top"></td></tr>
539      <tr><td class="lineno" valign="top"></td><td class="left">   code).</td><td> </td><td class="right">   code).</td><td class="lineno" valign="top"></td></tr>
540      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
541      <tr><td class="lineno" valign="top"></td><td class="left">   The definition of a new status code ought to specify whether or not</td><td> </td><td class="right">   The definition of a new status code ought to specify whether or not</td><td class="lineno" valign="top"></td></tr>
542      <tr><td class="lineno" valign="top"></td><td class="left">   it is cacheable.  Note that all status codes can be cached if the</td><td> </td><td class="right">   it is cacheable.  Note that all status codes can be cached if the</td><td class="lineno" valign="top"></td></tr>
543      <tr><td class="lineno" valign="top"></td><td class="left">   response they occur in has explicit freshness information; however,</td><td> </td><td class="right">   response they occur in has explicit freshness information; however,</td><td class="lineno" valign="top"></td></tr>
544      <tr><td class="lineno" valign="top"></td><td class="left">   status codes that are defined as being cacheable are allowed to be</td><td> </td><td class="right">   status codes that are defined as being cacheable are allowed to be</td><td class="lineno" valign="top"></td></tr>
545      <tr><td class="lineno" valign="top"></td><td class="left">   cached without explicit freshness information.  Likewise, the</td><td> </td><td class="right">   cached without explicit freshness information.  Likewise, the</td><td class="lineno" valign="top"></td></tr>
546      <tr><td class="lineno" valign="top"></td><td class="left">   definition of a status code can place constraints upon cache</td><td> </td><td class="right">   definition of a status code can place constraints upon cache</td><td class="lineno" valign="top"></td></tr>
547      <tr><td><a name="diff0025" /></td></tr>
548      <tr><td class="lineno" valign="top"></td><td class="lblock">   behavio<span class="delete">u</span>r.  See [Part6] for more information.</td><td> </td><td class="rblock">   behavior.  See [Part6] for more information.</td><td class="lineno" valign="top"></td></tr>
549      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
550      <tr><td class="lineno" valign="top"></td><td class="left">   Finally, the definition of a new status code ought to indicate</td><td> </td><td class="right">   Finally, the definition of a new status code ought to indicate</td><td class="lineno" valign="top"></td></tr>
551      <tr><td class="lineno" valign="top"></td><td class="left">   whether the payload has any implied association with an identified</td><td> </td><td class="right">   whether the payload has any implied association with an identified</td><td class="lineno" valign="top"></td></tr>
552      <tr><td class="lineno" valign="top"></td><td class="left">   resource (Section 3.1.4.1).</td><td> </td><td class="right">   resource (Section 3.1.4.1).</td><td class="lineno" valign="top"></td></tr>
553      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
554      <tr><td class="lineno" valign="top"></td><td class="left">8.2.3.  Registrations</td><td> </td><td class="right">8.2.3.  Registrations</td><td class="lineno" valign="top"></td></tr>
555      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
556      <tr><td class="lineno" valign="top"></td><td class="left">   The HTTP Status Code Registry shall be updated with the registrations</td><td> </td><td class="right">   The HTTP Status Code Registry shall be updated with the registrations</td><td class="lineno" valign="top"></td></tr>
557      <tr><td class="lineno" valign="top"></td><td class="left">   below:</td><td> </td><td class="right">   below:</td><td class="lineno" valign="top"></td></tr>
558      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
559      <tr><td class="lineno"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno"></td></tr>
560      <tr bgcolor="gray" ><td></td><th><a name="part-l17" /><small>skipping to change at</small><em> page 77, line 33</em></th><th> </th><th><a name="part-r17" /><small>skipping to change at</small><em> page 78, line 33</em></th><td></td></tr>
561      <tr><td class="lineno" valign="top"></td><td class="left">      field's definition not allowing the list syntax.  A robust format</td><td> </td><td class="right">      field's definition not allowing the list syntax.  A robust format</td><td class="lineno" valign="top"></td></tr>
562      <tr><td class="lineno" valign="top"></td><td class="left">      enables recipients to discover these situations (good example:</td><td> </td><td class="right">      enables recipients to discover these situations (good example:</td><td class="lineno" valign="top"></td></tr>
563      <tr><td class="lineno" valign="top"></td><td class="left">      "Content-Type", as the comma can only appear inside quoted</td><td> </td><td class="right">      "Content-Type", as the comma can only appear inside quoted</td><td class="lineno" valign="top"></td></tr>
564      <tr><td class="lineno" valign="top"></td><td class="left">      strings; bad example: "Location", as a comma can occur inside a</td><td> </td><td class="right">      strings; bad example: "Location", as a comma can occur inside a</td><td class="lineno" valign="top"></td></tr>
565      <tr><td class="lineno" valign="top"></td><td class="left">      URI).</td><td> </td><td class="right">      URI).</td><td class="lineno" valign="top"></td></tr>
566      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
567      <tr><td class="lineno" valign="top"></td><td class="left">   o  Under what conditions the header field can be used; e.g., only in</td><td> </td><td class="right">   o  Under what conditions the header field can be used; e.g., only in</td><td class="lineno" valign="top"></td></tr>
568      <tr><td class="lineno" valign="top"></td><td class="left">      responses or requests, in all messages, only on responses to a</td><td> </td><td class="right">      responses or requests, in all messages, only on responses to a</td><td class="lineno" valign="top"></td></tr>
569      <tr><td class="lineno" valign="top"></td><td class="left">      particular request method, etc.</td><td> </td><td class="right">      particular request method, etc.</td><td class="lineno" valign="top"></td></tr>
570      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
571      <tr><td><a name="diff0026" /></td></tr>
572      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock">   <span class="insert">o  Whether the field should be stored by origin servers that</span></td><td class="lineno" valign="top"></td></tr>
573      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">      understand it upon a PUT request.</span></td><td class="lineno" valign="top"></td></tr>
574      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock">                                                                         </td><td class="lineno" valign="top"></td></tr>
575      <tr><td class="lineno" valign="top"></td><td class="left">   o  Whether the field semantics are further refined by the context,</td><td> </td><td class="right">   o  Whether the field semantics are further refined by the context,</td><td class="lineno" valign="top"></td></tr>
576      <tr><td class="lineno" valign="top"></td><td class="left">      such as by existing request methods or status codes.</td><td> </td><td class="right">      such as by existing request methods or status codes.</td><td class="lineno" valign="top"></td></tr>
577      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
578      <tr><td class="lineno" valign="top"></td><td class="left">   o  Whether it is appropriate to list the field-name in the Connection</td><td> </td><td class="right">   o  Whether it is appropriate to list the field-name in the Connection</td><td class="lineno" valign="top"></td></tr>
579      <tr><td class="lineno" valign="top"></td><td class="left">      header field (i.e., if the header field is to be hop-by-hop; see</td><td> </td><td class="right">      header field (i.e., if the header field is to be hop-by-hop; see</td><td class="lineno" valign="top"></td></tr>
580      <tr><td class="lineno" valign="top"></td><td class="left">      Section 6.1 of [Part1]).</td><td> </td><td class="right">      Section 6.1 of [Part1]).</td><td class="lineno" valign="top"></td></tr>
581      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
582      <tr><td class="lineno" valign="top"></td><td class="left">   o  Under what conditions intermediaries are allowed to insert,</td><td> </td><td class="right">   o  Under what conditions intermediaries are allowed to insert,</td><td class="lineno" valign="top"></td></tr>
583      <tr><td class="lineno" valign="top"></td><td class="left">      delete, or modify the field's value.</td><td> </td><td class="right">      delete, or modify the field's value.</td><td class="lineno" valign="top"></td></tr>
584      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
585      <tr><td><a name="diff0027" /></td></tr>
586      <tr><td class="lineno" valign="top"></td><td class="lblock">   o  <span class="delete">How</span> the header field <span class="delete">might interact with caching (see [Part6]).</span></td><td> </td><td class="rblock">   o  <span class="insert">Whether it is appropriate to list</span> the <span class="insert">field-name in a Vary</span></td><td class="lineno" valign="top"></td></tr>
587      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">      response</span> header field <span class="insert">(e.g., when the request header field is used</span></td><td class="lineno" valign="top"></td></tr>
588      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">      by an origin server's content selection algorithm; see</span></td><td class="lineno" valign="top"></td></tr>
589      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">      Section 7.1.4).</span></td><td class="lineno" valign="top"></td></tr>
590      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
591      <tr><td class="lineno" valign="top"></td><td class="left">   o  Whether the header field is useful or allowable in trailers (see</td><td> </td><td class="right">   o  Whether the header field is useful or allowable in trailers (see</td><td class="lineno" valign="top"></td></tr>
592      <tr><td class="lineno" valign="top"></td><td class="left">      Section 4.1 of [Part1]).</td><td> </td><td class="right">      Section 4.1 of [Part1]).</td><td class="lineno" valign="top"></td></tr>
593      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
594      <tr><td class="lineno" valign="top"></td><td class="left">   o  Whether the header field ought to be preserved across redirects.</td><td> </td><td class="right">   o  Whether the header field ought to be preserved across redirects.</td><td class="lineno" valign="top"></td></tr>
595      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
596      <tr><td class="lineno" valign="top"></td><td class="left">8.3.2.  Registrations</td><td> </td><td class="right">8.3.2.  Registrations</td><td class="lineno" valign="top"></td></tr>
597      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
598      <tr><td class="lineno" valign="top"></td><td class="left">   The Message Header Field Registry shall be updated with the following</td><td> </td><td class="right">   The Message Header Field Registry shall be updated with the following</td><td class="lineno" valign="top"></td></tr>
599      <tr><td class="lineno" valign="top"></td><td class="left">   permanent registrations:</td><td> </td><td class="right">   permanent registrations:</td><td class="lineno" valign="top"></td></tr>
600      <tr><td class="lineno"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno"></td></tr>
601      <tr bgcolor="gray" ><td></td><th><a name="part-l18" /><small>skipping to change at</small><em> page 79, line 20</em></th><th> </th><th><a name="part-r18" /><small>skipping to change at</small><em> page 80, line 25</em></th><td></td></tr>
602      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
603      <tr><td class="lineno" valign="top"></td><td class="left">   Values to be added to this name space require IETF Review (see</td><td> </td><td class="right">   Values to be added to this name space require IETF Review (see</td><td class="lineno" valign="top"></td></tr>
604      <tr><td class="lineno" valign="top"></td><td class="left">   Section 4.1 of [RFC5226]), and MUST conform to the purpose of content</td><td> </td><td class="right">   Section 4.1 of [RFC5226]), and MUST conform to the purpose of content</td><td class="lineno" valign="top"></td></tr>
605      <tr><td class="lineno" valign="top"></td><td class="left">   coding defined in this section.</td><td> </td><td class="right">   coding defined in this section.</td><td class="lineno" valign="top"></td></tr>
606      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
607      <tr><td class="lineno" valign="top"></td><td class="left">8.4.2.  Registrations</td><td> </td><td class="right">8.4.2.  Registrations</td><td class="lineno" valign="top"></td></tr>
608      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
609      <tr><td class="lineno" valign="top"></td><td class="left">   The HTTP Content Codings Registry shall be updated with the</td><td> </td><td class="right">   The HTTP Content Codings Registry shall be updated with the</td><td class="lineno" valign="top"></td></tr>
610      <tr><td class="lineno" valign="top"></td><td class="left">   registrations below:</td><td> </td><td class="right">   registrations below:</td><td class="lineno" valign="top"></td></tr>
611      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
612      <tr><td><a name="diff0028" /></td></tr>
613      <tr><td class="lineno" valign="top"></td><td class="lblock">   <span class="delete">+----------+----------------------------------------+---------------+</span></td><td> </td><td class="rblock">   <span class="insert">+------------+--------------------------------------+---------------+</span></td><td class="lineno" valign="top"></td></tr>
614      <tr><td class="lineno" valign="top"></td><td class="lblock">   | Name     | Description                            | Reference     |</td><td> </td><td class="rblock">   | Name       | Description                          | Reference     |</td><td class="lineno" valign="top"></td></tr>
615      <tr><td class="lineno" valign="top"></td><td class="lblock">   <span class="delete">+----------+----------------------------------------+---------------+</span></td><td> </td><td class="rblock">   <span class="insert">+------------+--------------------------------------+---------------+</span></td><td class="lineno" valign="top"></td></tr>
616      <tr><td class="lineno" valign="top"></td><td class="lblock">   | compress | UNIX "compress" <span class="delete">program method</span>         | Section 4.2.1 |</td><td> </td><td class="rblock">   | compress   | UNIX "compress" <span class="insert">data format [Welch]</span>  | Section 4.2.1 |</td><td class="lineno" valign="top"></td></tr>
617      <tr><td class="lineno" valign="top"></td><td class="lblock">   |          |                                        | of [Part1]    |</td><td> </td><td class="rblock">   |            |                                      | of [Part1]    |</td><td class="lineno" valign="top"></td></tr>
618      <tr><td class="lineno" valign="top"></td><td class="lblock">   | deflate  | "deflate" <span class="delete">compression mechanism</span>        | Section 4.2.2 |</td><td> </td><td class="rblock">   | deflate    | "deflate" <span class="insert">compressed data</span>            | Section 4.2.2 |</td><td class="lineno" valign="top"></td></tr>
619      <tr><td class="lineno" valign="top"></td><td class="lblock">   |          | ([RFC1951]) <span class="delete">used</span> inside the "zlib"     | of [Part1]    |</td><td> </td><td class="rblock">   |            | ([RFC1951]) inside the "zlib" <span class="insert">data</span>   | of [Part1]    |</td><td class="lineno" valign="top"></td></tr>
620      <tr><td class="lineno" valign="top"></td><td class="lblock">   |          | <span class="delete">data</span> format ([RFC1950])                |               |</td><td> </td><td class="rblock">   |            | format ([RFC1950])                   |               |</td><td class="lineno" valign="top"></td></tr>
621      <tr><td class="lineno" valign="top"></td><td class="lblock">   | gzip     | <span class="delete">Same as GNU zip</span> [RFC1952]              | Section 4.2.3 |</td><td> </td><td class="rblock">   | gzip       | <span class="insert">GZIP file format</span> [RFC1952]           | Section 4.2.3 |</td><td class="lineno" valign="top"></td></tr>
622      <tr><td class="lineno" valign="top"></td><td class="lblock">   |          |                                        | of [Part1]    |</td><td> </td><td class="rblock">   |            |                                      | of [Part1]    |</td><td class="lineno" valign="top"></td></tr>
623      <tr><td class="lineno" valign="top"></td><td class="lblock">   | identity | <span class="delete">reserved</span> (synonym for "no encoding" <span class="delete">in</span> | Section 5.3.4 |</td><td> </td><td class="rblock">   | identity   | <span class="insert">Reserved</span> (synonym for "no encoding"  | Section 5.3.4 |</td><td class="lineno" valign="top"></td></tr>
624      <tr><td class="lineno" valign="top"></td><td class="lblock">   |          | <span class="delete">Accept-Encoding header field)</span>          |               |</td><td> </td><td class="rblock">   |            | <span class="insert">in Accept-Encoding)                  |               |</span></td><td class="lineno" valign="top"></td></tr>
625      <tr><td class="lineno" valign="top"></td><td class="lblock">   <span class="delete">+----------+----------------------------------------+---------------+</span></td><td> </td><td class="rblock"><span class="insert">   | x-compress | Deprecated (alias for compress)      | Section 4.2.1 |</span></td><td class="lineno" valign="top"></td></tr>
626      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">   |            |                                      | of [Part1]    |</span></td><td class="lineno" valign="top"></td></tr>
627      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">   | x-gzip     | Deprecated (alias for gzip)</span>          | <span class="insert">Section 4.2.3 |</span></td><td class="lineno" valign="top"></td></tr>
628      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">   |            |                                      | of [Part1]</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="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
631      <tr><td class="lineno" valign="top"></td><td class="left">9.  Security Considerations</td><td> </td><td class="right">9.  Security Considerations</td><td class="lineno" valign="top"></td></tr>
632      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
633      <tr><td class="lineno" valign="top"></td><td class="left">   This section is meant to inform developers, information providers,</td><td> </td><td class="right">   This section is meant to inform developers, information providers,</td><td class="lineno" valign="top"></td></tr>
634      <tr><td class="lineno" valign="top"></td><td class="left">   and users of known security concerns relevant to HTTP/1.1 semantics</td><td> </td><td class="right">   and users of known security concerns relevant to HTTP/1.1 semantics</td><td class="lineno" valign="top"></td></tr>
635      <tr><td class="lineno" valign="top"></td><td class="left">   and its use for transferring information over the Internet.</td><td> </td><td class="right">   and its use for transferring information over the Internet.</td><td class="lineno" valign="top"></td></tr>
636      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
637      <tr><td class="lineno" valign="top"></td><td class="left">9.1.  Attacks Based On File and Path Names</td><td> </td><td class="right">9.1.  Attacks Based On File and Path Names</td><td class="lineno" valign="top"></td></tr>
638      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
639      <tr><td class="lineno" valign="top"></td><td class="left">   Origin servers frequently make use of their local file system to</td><td> </td><td class="right">   Origin servers frequently make use of their local file system to</td><td class="lineno" valign="top"></td></tr>
640      <tr><td class="lineno" valign="top"></td><td class="left">   manage the mapping from effective request URI to resource</td><td> </td><td class="right">   manage the mapping from effective request URI to resource</td><td class="lineno" valign="top"></td></tr>
641      <tr><td><a name="diff0029" /></td></tr>
642      <tr><td class="lineno" valign="top"></td><td class="lblock">   representations.  Implement<span class="delete">o</span>rs need to be aware that most file</td><td> </td><td class="rblock">   representations.  Implement<span class="insert">e</span>rs need to be aware that most file</td><td class="lineno" valign="top"></td></tr>
643      <tr><td class="lineno" valign="top"></td><td class="left">   systems are not designed to protect against malicious file or path</td><td> </td><td class="right">   systems are not designed to protect against malicious file or path</td><td class="lineno" valign="top"></td></tr>
644      <tr><td class="lineno" valign="top"></td><td class="left">   names, and thus depend on the origin server to avoid mapping to file</td><td> </td><td class="right">   names, and thus depend on the origin server to avoid mapping to file</td><td class="lineno" valign="top"></td></tr>
645      <tr><td class="lineno" valign="top"></td><td class="left">   names, folders, or directories that have special significance to the</td><td> </td><td class="right">   names, folders, or directories that have special significance to the</td><td class="lineno" valign="top"></td></tr>
646      <tr><td class="lineno" valign="top"></td><td class="left">   system.</td><td> </td><td class="right">   system.</td><td class="lineno" valign="top"></td></tr>
647      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
648      <tr><td class="lineno" valign="top"></td><td class="left">   For example, UNIX, Microsoft Windows, and other operating systems use</td><td> </td><td class="right">   For example, UNIX, Microsoft Windows, and other operating systems use</td><td class="lineno" valign="top"></td></tr>
649      <tr><td class="lineno" valign="top"></td><td class="left">   ".." as a path component to indicate a directory level above the</td><td> </td><td class="right">   ".." as a path component to indicate a directory level above the</td><td class="lineno" valign="top"></td></tr>
650      <tr><td class="lineno" valign="top"></td><td class="left">   current one, and use specially named paths or file names to send data</td><td> </td><td class="right">   current one, and use specially named paths or file names to send data</td><td class="lineno" valign="top"></td></tr>
651      <tr><td class="lineno" valign="top"></td><td class="left">   to system devices.  Similar naming conventions might exist within</td><td> </td><td class="right">   to system devices.  Similar naming conventions might exist within</td><td class="lineno" valign="top"></td></tr>
652      <tr><td class="lineno" valign="top"></td><td class="left">   other types of storage systems.  Likewise, local storage systems have</td><td> </td><td class="right">   other types of storage systems.  Likewise, local storage systems have</td><td class="lineno" valign="top"></td></tr>
653      <tr><td class="lineno"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno"></td></tr>
654      <tr bgcolor="gray" ><td></td><th><a name="part-l19" /><small>skipping to change at</small><em> page 82, line 43</em></th><th> </th><th><a name="part-r19" /><small>skipping to change at</small><em> page 83, line 48</em></th><td></td></tr>
655      <tr><td class="lineno" valign="top"></td><td class="left">10.  Acknowledgments</td><td> </td><td class="right">10.  Acknowledgments</td><td class="lineno" valign="top"></td></tr>
656      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
657      <tr><td class="lineno" valign="top"></td><td class="left">   See Section 9 of [Part1].</td><td> </td><td class="right">   See Section 9 of [Part1].</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">11.  References</td><td> </td><td class="right">11.  References</td><td class="lineno" valign="top"></td></tr>
660      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
661      <tr><td class="lineno" valign="top"></td><td class="left">11.1.  Normative References</td><td> </td><td class="right">11.1.  Normative References</td><td class="lineno" valign="top"></td></tr>
662      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
663      <tr><td class="lineno" valign="top"></td><td class="left">   [Part1]       Fielding, R., Ed. and J. Reschke, Ed., "Hypertext</td><td> </td><td class="right">   [Part1]       Fielding, R., Ed. and J. Reschke, Ed., "Hypertext</td><td class="lineno" valign="top"></td></tr>
664      <tr><td class="lineno" valign="top"></td><td class="left">                 Transfer Protocol (HTTP/1.1): Message Syntax and</td><td> </td><td class="right">                 Transfer Protocol (HTTP/1.1): Message Syntax and</td><td class="lineno" valign="top"></td></tr>
665      <tr><td><a name="diff0030" /></td></tr>
666      <tr><td class="lineno" valign="top"></td><td class="lblock">                 Routing", <span class="delete">draft-ietf-httpbis-p1-messaging-22</span> (work in</td><td> </td><td class="rblock">                 Routing", <span class="insert">draft-ietf-httpbis-p1-messaging-23</span> (work in</td><td class="lineno" valign="top"></td></tr>
667      <tr><td class="lineno" valign="top"></td><td class="lblock">                 progress), <span class="delete">February</span> 2013.</td><td> </td><td class="rblock">                 progress), <span class="insert">July</span> 2013.</td><td class="lineno" valign="top"></td></tr>
668      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
669      <tr><td class="lineno" valign="top"></td><td class="left">   [Part4]       Fielding, R., Ed. and J. Reschke, Ed., "Hypertext</td><td> </td><td class="right">   [Part4]       Fielding, R., Ed. and J. Reschke, Ed., "Hypertext</td><td class="lineno" valign="top"></td></tr>
670      <tr><td class="lineno" valign="top"></td><td class="left">                 Transfer Protocol (HTTP/1.1): Conditional Requests",</td><td> </td><td class="right">                 Transfer Protocol (HTTP/1.1): Conditional Requests",</td><td class="lineno" valign="top"></td></tr>
671      <tr><td><a name="diff0031" /></td></tr>
672      <tr><td class="lineno" valign="top"></td><td class="lblock">                 <span class="delete">draft-ietf-httpbis-p4-conditional-22</span> (work in</td><td> </td><td class="rblock">                 <span class="insert">draft-ietf-httpbis-p4-conditional-23</span> (work in</td><td class="lineno" valign="top"></td></tr>
673      <tr><td class="lineno" valign="top"></td><td class="lblock">                 progress), <span class="delete">February</span> 2013.</td><td> </td><td class="rblock">                 progress), <span class="insert">July</span> 2013.</td><td class="lineno" valign="top"></td></tr>
674      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
675      <tr><td class="lineno" valign="top"></td><td class="left">   [Part5]       Fielding, R., Ed., Lafon, Y., Ed., and J. Reschke, Ed.,</td><td> </td><td class="right">   [Part5]       Fielding, R., Ed., Lafon, Y., Ed., and J. Reschke, Ed.,</td><td class="lineno" valign="top"></td></tr>
676      <tr><td class="lineno" valign="top"></td><td class="left">                 "Hypertext Transfer Protocol (HTTP/1.1): Range</td><td> </td><td class="right">                 "Hypertext Transfer Protocol (HTTP/1.1): Range</td><td class="lineno" valign="top"></td></tr>
677      <tr><td><a name="diff0032" /></td></tr>
678      <tr><td class="lineno" valign="top"></td><td class="lblock">                 Requests", <span class="delete">draft-ietf-httpbis-p5-range-22</span> (work in</td><td> </td><td class="rblock">                 Requests", <span class="insert">draft-ietf-httpbis-p5-range-23</span> (work in</td><td class="lineno" valign="top"></td></tr>
679      <tr><td class="lineno" valign="top"></td><td class="lblock">                 progress), <span class="delete">February</span> 2013.</td><td> </td><td class="rblock">                 progress), <span class="insert">July</span> 2013.</td><td class="lineno" valign="top"></td></tr>
680      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
681      <tr><td class="lineno" valign="top"></td><td class="left">   [Part6]       Fielding, R., Ed., Nottingham, M., Ed., and J. Reschke,</td><td> </td><td class="right">   [Part6]       Fielding, R., Ed., Nottingham, M., Ed., and J. Reschke,</td><td class="lineno" valign="top"></td></tr>
682      <tr><td class="lineno" valign="top"></td><td class="left">                 Ed., "Hypertext Transfer Protocol (HTTP/1.1): Caching",</td><td> </td><td class="right">                 Ed., "Hypertext Transfer Protocol (HTTP/1.1): Caching",</td><td class="lineno" valign="top"></td></tr>
683      <tr><td><a name="diff0033" /></td></tr>
684      <tr><td class="lineno" valign="top"></td><td class="lblock">                 <span class="delete">draft-ietf-httpbis-p6-cache-22</span> (work in progress),</td><td> </td><td class="rblock">                 <span class="insert">draft-ietf-httpbis-p6-cache-23</span> (work in progress),</td><td class="lineno" valign="top"></td></tr>
685      <tr><td class="lineno" valign="top"></td><td class="lblock">                 <span class="delete">February</span> 2013.</td><td> </td><td class="rblock">                 <span class="insert">July</span> 2013.</td><td class="lineno" valign="top"></td></tr>
686      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
687      <tr><td class="lineno" valign="top"></td><td class="left">   [Part7]       Fielding, R., Ed. and J. Reschke, Ed., "Hypertext</td><td> </td><td class="right">   [Part7]       Fielding, R., Ed. and J. Reschke, Ed., "Hypertext</td><td class="lineno" valign="top"></td></tr>
688      <tr><td class="lineno" valign="top"></td><td class="left">                 Transfer Protocol (HTTP/1.1): Authentication",</td><td> </td><td class="right">                 Transfer Protocol (HTTP/1.1): Authentication",</td><td class="lineno" valign="top"></td></tr>
689      <tr><td><a name="diff0034" /></td></tr>
690      <tr><td class="lineno" valign="top"></td><td class="lblock">                 <span class="delete">draft-ietf-httpbis-p7-auth-22</span> (work in progress),</td><td> </td><td class="rblock">                 <span class="insert">draft-ietf-httpbis-p7-auth-23</span> (work in progress),</td><td class="lineno" valign="top"></td></tr>
691      <tr><td class="lineno" valign="top"></td><td class="lblock">                 <span class="delete">February</span> 2013.</td><td> </td><td class="rblock">                 <span class="insert">July</span> 2013.</td><td class="lineno" valign="top"></td></tr>
692      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
693      <tr><td class="lineno" valign="top"></td><td class="left">   [RFC1950]     Deutsch, L. and J-L. Gailly, "ZLIB Compressed Data</td><td> </td><td class="right">   [RFC1950]     Deutsch, L. and J-L. Gailly, "ZLIB Compressed Data</td><td class="lineno" valign="top"></td></tr>
694      <tr><td class="lineno" valign="top"></td><td class="left">                 Format Specification version 3.3", RFC 1950, May 1996.</td><td> </td><td class="right">                 Format Specification version 3.3", RFC 1950, May 1996.</td><td class="lineno" valign="top"></td></tr>
695      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
696      <tr><td class="lineno" valign="top"></td><td class="left">   [RFC1951]     Deutsch, P., "DEFLATE Compressed Data Format</td><td> </td><td class="right">   [RFC1951]     Deutsch, P., "DEFLATE Compressed Data Format</td><td class="lineno" valign="top"></td></tr>
697      <tr><td class="lineno" valign="top"></td><td class="left">                 Specification version 1.3", RFC 1951, May 1996.</td><td> </td><td class="right">                 Specification version 1.3", RFC 1951, May 1996.</td><td class="lineno" valign="top"></td></tr>
698      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
699      <tr><td class="lineno" valign="top"></td><td class="left">   [RFC1952]     Deutsch, P., Gailly, J-L., Adler, M., Deutsch, L., and</td><td> </td><td class="right">   [RFC1952]     Deutsch, P., Gailly, J-L., Adler, M., Deutsch, L., and</td><td class="lineno" valign="top"></td></tr>
700      <tr><td class="lineno" valign="top"></td><td class="left">                 G. Randers-Pehrson, "GZIP file format specification</td><td> </td><td class="right">                 G. Randers-Pehrson, "GZIP file format specification</td><td class="lineno" valign="top"></td></tr>
701      <tr><td class="lineno" valign="top"></td><td class="left">                 version 4.3", RFC 1952, May 1996.</td><td> </td><td class="right">                 version 4.3", RFC 1952, May 1996.</td><td class="lineno" valign="top"></td></tr>
702      <tr><td class="lineno"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno"></td></tr>
703      <tr bgcolor="gray" ><td></td><th><a name="part-l20" /><small>skipping to change at</small><em> page 84, line 10</em></th><th> </th><th><a name="part-r20" /><small>skipping to change at</small><em> page 85, line 15</em></th><td></td></tr>
704      <tr><td class="lineno" valign="top"></td><td class="left">                 January 2008.</td><td> </td><td class="right">                 January 2008.</td><td class="lineno" valign="top"></td></tr>
705      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
706      <tr><td class="lineno" valign="top"></td><td class="left">   [RFC5646]     Phillips, A., Ed. and M. Davis, Ed., "Tags for</td><td> </td><td class="right">   [RFC5646]     Phillips, A., Ed. and M. Davis, Ed., "Tags for</td><td class="lineno" valign="top"></td></tr>
707      <tr><td class="lineno" valign="top"></td><td class="left">                 Identifying Languages", BCP 47, RFC 5646,</td><td> </td><td class="right">                 Identifying Languages", BCP 47, RFC 5646,</td><td class="lineno" valign="top"></td></tr>
708      <tr><td class="lineno" valign="top"></td><td class="left">                 September 2009.</td><td> </td><td class="right">                 September 2009.</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">   [RFC6365]     Hoffman, P. and J. Klensin, "Terminology Used in</td><td> </td><td class="right">   [RFC6365]     Hoffman, P. and J. Klensin, "Terminology Used in</td><td class="lineno" valign="top"></td></tr>
711      <tr><td class="lineno" valign="top"></td><td class="left">                 Internationalization in the IETF", BCP 166, RFC 6365,</td><td> </td><td class="right">                 Internationalization in the IETF", BCP 166, RFC 6365,</td><td class="lineno" valign="top"></td></tr>
712      <tr><td class="lineno" valign="top"></td><td class="left">                 September 2011.</td><td> </td><td class="right">                 September 2011.</td><td class="lineno" valign="top"></td></tr>
713      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
714      <tr><td><a name="diff0035" /></td></tr>
715      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock">   <span class="insert">[Welch]       Welch, T., "A Technique for High Performance Data</span></td><td class="lineno" valign="top"></td></tr>
716      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">                 Compression", IEEE Computer 17(6), June 1984.</span></td><td class="lineno" valign="top"></td></tr>
717      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock">                                                                         </td><td class="lineno" valign="top"></td></tr>
718      <tr><td class="lineno" valign="top"></td><td class="left">11.2.  Informative References</td><td> </td><td class="right">11.2.  Informative References</td><td class="lineno" valign="top"></td></tr>
719      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
720      <tr><td class="lineno" valign="top"></td><td class="left">   [BCP13]       Freed, N., Klensin, J., and T. Hansen, "Media Type</td><td> </td><td class="right">   [BCP13]       Freed, N., Klensin, J., and T. Hansen, "Media Type</td><td class="lineno" valign="top"></td></tr>
721      <tr><td class="lineno" valign="top"></td><td class="left">                 Specifications and Registration Procedures", BCP 13,</td><td> </td><td class="right">                 Specifications and Registration Procedures", BCP 13,</td><td class="lineno" valign="top"></td></tr>
722      <tr><td class="lineno" valign="top"></td><td class="left">                 RFC 6838, January 2013.</td><td> </td><td class="right">                 RFC 6838, January 2013.</td><td class="lineno" valign="top"></td></tr>
723      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
724      <tr><td class="lineno" valign="top"></td><td class="left">   [BCP90]       Klyne, G., Nottingham, M., and J. Mogul, "Registration</td><td> </td><td class="right">   [BCP90]       Klyne, G., Nottingham, M., and J. Mogul, "Registration</td><td class="lineno" valign="top"></td></tr>
725      <tr><td class="lineno" valign="top"></td><td class="left">                 Procedures for Message Header Fields", BCP 90,</td><td> </td><td class="right">                 Procedures for Message Header Fields", BCP 90,</td><td class="lineno" valign="top"></td></tr>
726      <tr><td class="lineno" valign="top"></td><td class="left">                 RFC 3864, September 2004.</td><td> </td><td class="right">                 RFC 3864, September 2004.</td><td class="lineno" valign="top"></td></tr>
727      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
728      <tr><td class="lineno"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno"></td></tr>
729      <tr bgcolor="gray" ><td></td><th><a name="part-l21" /><small>skipping to change at</small><em> page 85, line 7</em></th><th> </th><th><a name="part-r21" /><small>skipping to change at</small><em> page 86, line 16</em></th><td></td></tr>
730      <tr><td class="lineno" valign="top"></td><td class="left">                 form-data", RFC 2388, August 1998.</td><td> </td><td class="right">                 form-data", RFC 2388, August 1998.</td><td class="lineno" valign="top"></td></tr>
731      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
732      <tr><td class="lineno" valign="top"></td><td class="left">   [RFC2557]     Palme, F., Hopmann, A., Shelness, N., and E. Stefferud,</td><td> </td><td class="right">   [RFC2557]     Palme, F., Hopmann, A., Shelness, N., and E. Stefferud,</td><td class="lineno" valign="top"></td></tr>
733      <tr><td class="lineno" valign="top"></td><td class="left">                 "MIME Encapsulation of Aggregate Documents, such as</td><td> </td><td class="right">                 "MIME Encapsulation of Aggregate Documents, such as</td><td class="lineno" valign="top"></td></tr>
734      <tr><td class="lineno" valign="top"></td><td class="left">                 HTML (MHTML)", RFC 2557, March 1999.</td><td> </td><td class="right">                 HTML (MHTML)", RFC 2557, March 1999.</td><td class="lineno" valign="top"></td></tr>
735      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
736      <tr><td class="lineno" valign="top"></td><td class="left">   [RFC2616]     Fielding, R., Gettys, J., Mogul, J., Frystyk, H.,</td><td> </td><td class="right">   [RFC2616]     Fielding, R., Gettys, J., Mogul, J., Frystyk, H.,</td><td class="lineno" valign="top"></td></tr>
737      <tr><td class="lineno" valign="top"></td><td class="left">                 Masinter, L., Leach, P., and T. Berners-Lee, "Hypertext</td><td> </td><td class="right">                 Masinter, L., Leach, P., and T. Berners-Lee, "Hypertext</td><td class="lineno" valign="top"></td></tr>
738      <tr><td class="lineno" valign="top"></td><td class="left">                 Transfer Protocol -- HTTP/1.1", RFC 2616, June 1999.</td><td> </td><td class="right">                 Transfer Protocol -- HTTP/1.1", RFC 2616, June 1999.</td><td class="lineno" valign="top"></td></tr>
739      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
740      <tr><td><a name="diff0036" /></td></tr>
741      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock">   <span class="insert">[RFC2774]     Frystyk, H., Leach, P., and S. Lawrence, "An HTTP</span></td><td class="lineno" valign="top"></td></tr>
742      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">                 Extension Framework", RFC 2774, February 2000.</span></td><td class="lineno" valign="top"></td></tr>
743      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock">                                                                         </td><td class="lineno" valign="top"></td></tr>
744      <tr><td class="lineno" valign="top"></td><td class="left">   [RFC2817]     Khare, R. and S. Lawrence, "Upgrading to TLS Within</td><td> </td><td class="right">   [RFC2817]     Khare, R. and S. Lawrence, "Upgrading to TLS Within</td><td class="lineno" valign="top"></td></tr>
745      <tr><td class="lineno" valign="top"></td><td class="left">                 HTTP/1.1", RFC 2817, May 2000.</td><td> </td><td class="right">                 HTTP/1.1", RFC 2817, May 2000.</td><td class="lineno" valign="top"></td></tr>
746      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
747      <tr><td class="lineno" valign="top"></td><td class="left">   [RFC2978]     Freed, N. and J. Postel, "IANA Charset Registration</td><td> </td><td class="right">   [RFC2978]     Freed, N. and J. Postel, "IANA Charset Registration</td><td class="lineno" valign="top"></td></tr>
748      <tr><td class="lineno" valign="top"></td><td class="left">                 Procedures", BCP 19, RFC 2978, October 2000.</td><td> </td><td class="right">                 Procedures", BCP 19, RFC 2978, October 2000.</td><td class="lineno" valign="top"></td></tr>
749      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
750      <tr><td class="lineno" valign="top"></td><td class="left">   [RFC5226]     Narten, T. and H. Alvestrand, "Guidelines for Writing</td><td> </td><td class="right">   [RFC5226]     Narten, T. and H. Alvestrand, "Guidelines for Writing</td><td class="lineno" valign="top"></td></tr>
751      <tr><td class="lineno" valign="top"></td><td class="left">                 an IANA Considerations Section in RFCs", BCP 26,</td><td> </td><td class="right">                 an IANA Considerations Section in RFCs", BCP 26,</td><td class="lineno" valign="top"></td></tr>
752      <tr><td class="lineno" valign="top"></td><td class="left">                 RFC 5226, May 2008.</td><td> </td><td class="right">                 RFC 5226, May 2008.</td><td class="lineno" valign="top"></td></tr>
753      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
754      <tr><td class="lineno"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno"></td></tr>
755      <tr bgcolor="gray" ><td></td><th><a name="part-l22" /><small>skipping to change at</small><em> page 90, line 48</em></th><th> </th><th><a name="part-r22" /><small>skipping to change at</small><em> page 92, line 19</em></th><td></td></tr>
756      <tr><td class="lineno" valign="top"></td><td class="left">     absolute-URI  = &lt;absolute-URI, defined in [Part1], Section 2.7&gt;</td><td> </td><td class="right">     absolute-URI  = &lt;absolute-URI, defined in [Part1], Section 2.7&gt;</td><td class="lineno" valign="top"></td></tr>
757      <tr><td class="lineno" valign="top"></td><td class="left">     comment       = &lt;comment, defined in [Part1], Section 3.2.6&gt;</td><td> </td><td class="right">     comment       = &lt;comment, defined in [Part1], Section 3.2.6&gt;</td><td class="lineno" valign="top"></td></tr>
758      <tr><td class="lineno" valign="top"></td><td class="left">     field-name    = &lt;comment, defined in [Part1], Section 3.2&gt;</td><td> </td><td class="right">     field-name    = &lt;comment, defined in [Part1], Section 3.2&gt;</td><td class="lineno" valign="top"></td></tr>
759      <tr><td class="lineno" valign="top"></td><td class="left">     partial-URI   = &lt;partial-URI, defined in [Part1], Section 2.7&gt;</td><td> </td><td class="right">     partial-URI   = &lt;partial-URI, defined in [Part1], Section 2.7&gt;</td><td class="lineno" valign="top"></td></tr>
760      <tr><td class="lineno" valign="top"></td><td class="left">     quoted-string = &lt;quoted-string, defined in [Part1], Section 3.2.6&gt;</td><td> </td><td class="right">     quoted-string = &lt;quoted-string, defined in [Part1], Section 3.2.6&gt;</td><td class="lineno" valign="top"></td></tr>
761      <tr><td class="lineno" valign="top"></td><td class="left">     token         = &lt;token, defined in [Part1], Section 3.2.6&gt;</td><td> </td><td class="right">     token         = &lt;token, defined in [Part1], Section 3.2.6&gt;</td><td class="lineno" valign="top"></td></tr>
762      <tr><td class="lineno" valign="top"></td><td class="left">     word          = &lt;word, defined in [Part1], Section 3.2.6&gt;</td><td> </td><td class="right">     word          = &lt;word, defined in [Part1], Section 3.2.6&gt;</td><td class="lineno" valign="top"></td></tr>
763      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
764      <tr><td class="lineno" valign="top"></td><td class="left">Appendix D.  Collected ABNF</td><td> </td><td class="right">Appendix D.  Collected ABNF</td><td class="lineno" valign="top"></td></tr>
765      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
766      <tr><td><a name="diff0037" /></td></tr>
767      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock">   <span class="insert">In the collected ABNF below, list rules are expanded as per Section</span></td><td class="lineno" valign="top"></td></tr>
768      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">   1.2 of [Part1].</span></td><td class="lineno" valign="top"></td></tr>
769      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock">                                                                         </td><td class="lineno" valign="top"></td></tr>
770      <tr><td class="lineno" valign="top"></td><td class="left">   Accept = [ ( "," / ( media-range [ accept-params ] ) ) *( OWS "," [</td><td> </td><td class="right">   Accept = [ ( "," / ( media-range [ accept-params ] ) ) *( OWS "," [</td><td class="lineno" valign="top"></td></tr>
771      <tr><td class="lineno" valign="top"></td><td class="left">    OWS ( media-range [ accept-params ] ) ] ) ]</td><td> </td><td class="right">    OWS ( media-range [ accept-params ] ) ] ) ]</td><td class="lineno" valign="top"></td></tr>
772      <tr><td class="lineno" valign="top"></td><td class="left">   Accept-Charset = *( "," OWS ) ( ( charset / "*" ) [ weight ] ) *( OWS</td><td> </td><td class="right">   Accept-Charset = *( "," OWS ) ( ( charset / "*" ) [ weight ] ) *( OWS</td><td class="lineno" valign="top"></td></tr>
773      <tr><td class="lineno" valign="top"></td><td class="left">    "," [ OWS ( ( charset / "*" ) [ weight ] ) ] )</td><td> </td><td class="right">    "," [ OWS ( ( charset / "*" ) [ weight ] ) ] )</td><td class="lineno" valign="top"></td></tr>
774      <tr><td><a name="diff0038" /></td></tr>
775      <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>
776      <tr><td class="lineno" valign="top"></td><td class="left">   Accept-Encoding = [ ( "," / ( codings [ weight ] ) ) *( OWS "," [ OWS</td><td> </td><td class="right">   Accept-Encoding = [ ( "," / ( codings [ weight ] ) ) *( OWS "," [ OWS</td><td class="lineno" valign="top"></td></tr>
777      <tr><td class="lineno" valign="top"></td><td class="left">    ( codings [ weight ] ) ] ) ]</td><td> </td><td class="right">    ( codings [ weight ] ) ] ) ]</td><td class="lineno" valign="top"></td></tr>
778      <tr><td class="lineno" valign="top"></td><td class="left">   Accept-Language = *( "," OWS ) ( language-range [ weight ] ) *( OWS</td><td> </td><td class="right">   Accept-Language = *( "," OWS ) ( language-range [ weight ] ) *( OWS</td><td class="lineno" valign="top"></td></tr>
779      <tr><td class="lineno" valign="top"></td><td class="left">    "," [ OWS ( language-range [ weight ] ) ] )</td><td> </td><td class="right">    "," [ OWS ( language-range [ weight ] ) ] )</td><td class="lineno" valign="top"></td></tr>
780      <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>
781      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
782      <tr><td class="lineno" valign="top"></td><td class="left">   BWS = &lt;BWS, defined in [Part1], Section 3.2.3&gt;</td><td> </td><td class="right">   BWS = &lt;BWS, defined in [Part1], Section 3.2.3&gt;</td><td class="lineno" valign="top"></td></tr>
783      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
784      <tr><td class="lineno" valign="top"></td><td class="left">   Content-Encoding = *( "," OWS ) content-coding *( OWS "," [ OWS</td><td> </td><td class="right">   Content-Encoding = *( "," OWS ) content-coding *( OWS "," [ OWS</td><td class="lineno" valign="top"></td></tr>
785      <tr><td class="lineno" valign="top"></td><td class="left">    content-coding ] )</td><td> </td><td class="right">    content-coding ] )</td><td class="lineno" valign="top"></td></tr>
786      <tr><td class="lineno"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno"></td></tr>
787      <tr bgcolor="gray" ><td></td><th><a name="part-l23" /><small>skipping to change at</small><em> page 94, line 47</em></th><th> </th><th><a name="part-r23" /><small>skipping to change at</small><em> page 96, line 17</em></th><td></td></tr>
788      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
789      <tr><td class="lineno" valign="top"></td><td class="left">   o  &lt;http://tools.ietf.org/wg/httpbis/trac/ticket/428&gt;: "Accept-</td><td> </td><td class="right">   o  &lt;http://tools.ietf.org/wg/httpbis/trac/ticket/428&gt;: "Accept-</td><td class="lineno" valign="top"></td></tr>
790      <tr><td class="lineno" valign="top"></td><td class="left">      Language ordering for identical qvalues"</td><td> </td><td class="right">      Language ordering for identical qvalues"</td><td class="lineno" valign="top"></td></tr>
791      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
792      <tr><td class="lineno" valign="top"></td><td class="left">   o  &lt;http://tools.ietf.org/wg/httpbis/trac/ticket/432&gt;: "Identify</td><td> </td><td class="right">   o  &lt;http://tools.ietf.org/wg/httpbis/trac/ticket/432&gt;: "Identify</td><td class="lineno" valign="top"></td></tr>
793      <tr><td class="lineno" valign="top"></td><td class="left">      additional status codes as cacheable by default"</td><td> </td><td class="right">      additional status codes as cacheable by default"</td><td class="lineno" valign="top"></td></tr>
794      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
795      <tr><td class="lineno" valign="top"></td><td class="left">   o  &lt;http://tools.ietf.org/wg/httpbis/trac/ticket/434&gt;: "mention in</td><td> </td><td class="right">   o  &lt;http://tools.ietf.org/wg/httpbis/trac/ticket/434&gt;: "mention in</td><td class="lineno" valign="top"></td></tr>
796      <tr><td class="lineno" valign="top"></td><td class="left">      header field considerations that leading/trailing WS is lossy"</td><td> </td><td class="right">      header field considerations that leading/trailing WS is lossy"</td><td class="lineno" valign="top"></td></tr>
797      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
798      <tr><td><a name="diff0039" /></td></tr>
799      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">E.3.  Since draft-ietf-httpbis-p2-semantics-22</span></td><td class="lineno" valign="top"></td></tr>
800      <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>
801      <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>
802      <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>
803      <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/436&gt;: "explain list</span></td><td class="lineno" valign="top"></td></tr>
804      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">      expansion in ABNF appendices"</span></td><td class="lineno" valign="top"></td></tr>
805      <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>
806      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">   o  &lt;http://trac.tools.ietf.org/wg/httpbis/trac/ticket/448&gt;: "Fallback</span></td><td class="lineno" valign="top"></td></tr>
807      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">      for Accept-Language"</span></td><td class="lineno" valign="top"></td></tr>
808      <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>
809      <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/449&gt;: "Receiving a</span></td><td class="lineno" valign="top"></td></tr>
810      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">      higher minor HTTP version number"</span></td><td class="lineno" valign="top"></td></tr>
811      <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>
812      <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/456&gt;: "Language-tag</span></td><td class="lineno" valign="top"></td></tr>
813      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">      vs. language-range"</span></td><td class="lineno" valign="top"></td></tr>
814      <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>
815      <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/457&gt;: "Registering</span></td><td class="lineno" valign="top"></td></tr>
816      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">      x-gzip and x-deflate"</span></td><td class="lineno" valign="top"></td></tr>
817      <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>
818      <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/459&gt;: "RFC2774 and</span></td><td class="lineno" valign="top"></td></tr>
819      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">      method registrations"</span></td><td class="lineno" valign="top"></td></tr>
820      <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>
821      <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/488&gt;: "Selection</span></td><td class="lineno" valign="top"></td></tr>
822      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">      based upon request target"</span></td><td class="lineno" valign="top"></td></tr>
823      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock">                                                                         </td><td class="lineno" valign="top"></td></tr>
824      <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>
825      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
826      <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>
827      <tr><td class="lineno" valign="top"></td><td class="left">      1xx Informational (status code class)  49</td><td> </td><td class="right">      1xx Informational (status code class)  49</td><td class="lineno" valign="top"></td></tr>
828      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
829      <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>
830      <tr><td class="lineno" valign="top"></td><td class="left">      2xx Successful (status code class)  50</td><td> </td><td class="right">      2xx Successful (status code class)  50</td><td class="lineno" valign="top"></td></tr>
831      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
832      <tr><td class="lineno" valign="top"></td><td class="left">   3</td><td> </td><td class="right">   3</td><td class="lineno" valign="top"></td></tr>
833      <tr><td class="lineno" valign="top"></td><td class="left">      3xx Redirection (status code class)  53</td><td> </td><td class="right">      3xx Redirection (status code class)  53</td><td class="lineno" valign="top"></td></tr>
834      <tr><td class="lineno"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno"></td></tr>
835      <tr bgcolor="gray" ><td></td><th><a name="part-l24" /><small>skipping to change at</small><em> page 96, line 31</em></th><th> </th><th><a name="part-r24" /><small>skipping to change at</small><em> page 98, line 26</em></th><td></td></tr>
836      <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>
837      <tr><td class="lineno" valign="top"></td><td class="left">      cacheable  23</td><td> </td><td class="right">      cacheable  23</td><td class="lineno" valign="top"></td></tr>
838      <tr><td class="lineno" valign="top"></td><td class="left">      compress (content coding)  11</td><td> </td><td class="right">      compress (content coding)  11</td><td class="lineno" valign="top"></td></tr>
839      <tr><td class="lineno" valign="top"></td><td class="left">      conditional request  36</td><td> </td><td class="right">      conditional request  36</td><td class="lineno" valign="top"></td></tr>
840      <tr><td class="lineno" valign="top"></td><td class="left">      CONNECT method  29</td><td> </td><td class="right">      CONNECT method  29</td><td class="lineno" valign="top"></td></tr>
841      <tr><td class="lineno" valign="top"></td><td class="left">      content coding  11</td><td> </td><td class="right">      content coding  11</td><td class="lineno" valign="top"></td></tr>
842      <tr><td class="lineno" valign="top"></td><td class="left">      content negotiation  6</td><td> </td><td class="right">      content negotiation  6</td><td class="lineno" valign="top"></td></tr>
843      <tr><td class="lineno" valign="top"></td><td class="left">      Content-Encoding header field  12</td><td> </td><td class="right">      Content-Encoding header field  12</td><td class="lineno" valign="top"></td></tr>
844      <tr><td class="lineno" valign="top"></td><td class="left">      Content-Language header field  13</td><td> </td><td class="right">      Content-Language header field  13</td><td class="lineno" valign="top"></td></tr>
845      <tr><td class="lineno" valign="top"></td><td class="left">      Content-Location header field  15</td><td> </td><td class="right">      Content-Location header field  15</td><td class="lineno" valign="top"></td></tr>
846      <tr><td><a name="diff0040" /></td></tr>
847      <tr><td class="lineno" valign="top"></td><td class="lblock">      Content-Transfer-Encoding header field  8<span class="delete">7</span></td><td> </td><td class="rblock">      Content-Transfer-Encoding header field  8<span class="insert">8</span></td><td class="lineno" valign="top"></td></tr>
848      <tr><td class="lineno" valign="top"></td><td class="left">      Content-Type header field  10</td><td> </td><td class="right">      Content-Type header field  10</td><td class="lineno" valign="top"></td></tr>
849      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
850      <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>
851      <tr><td class="lineno" valign="top"></td><td class="left">      Date header field  66</td><td> </td><td class="right">      Date header field  66</td><td class="lineno" valign="top"></td></tr>
852      <tr><td class="lineno" valign="top"></td><td class="left">      deflate (content coding)  11</td><td> </td><td class="right">      deflate (content coding)  11</td><td class="lineno" valign="top"></td></tr>
853      <tr><td class="lineno" valign="top"></td><td class="left">      DELETE method  28</td><td> </td><td class="right">      DELETE method  28</td><td class="lineno" valign="top"></td></tr>
854      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
855      <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>
856      <tr><td class="lineno" valign="top"></td><td class="left">      Expect header field  33</td><td> </td><td class="right">      Expect header field  33</td><td class="lineno" valign="top"></td></tr>
857      <tr><td class="lineno" valign="top"></td><td class="left">      Expect Values</td><td> </td><td class="right">      Expect Values</td><td class="lineno" valign="top"></td></tr>
858      <tr><td class="lineno"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno"></td></tr>
859      <tr bgcolor="gray" ><td></td><th><a name="part-l25" /><small>skipping to change at</small><em> page 97, line 48</em></th><th> </th><th><a name="part-r25" /><small>skipping to change at</small><em> page 99, line 43</em></th><td></td></tr>
860      <tr><td class="lineno" valign="top"></td><td class="left">         media-range  38</td><td> </td><td class="right">         media-range  38</td><td class="lineno" valign="top"></td></tr>
861      <tr><td class="lineno" valign="top"></td><td class="left">         media-type  8</td><td> </td><td class="right">         media-type  8</td><td class="lineno" valign="top"></td></tr>
862      <tr><td class="lineno" valign="top"></td><td class="left">         method  20</td><td> </td><td class="right">         method  20</td><td class="lineno" valign="top"></td></tr>
863      <tr><td class="lineno" valign="top"></td><td class="left">         minute  64</td><td> </td><td class="right">         minute  64</td><td class="lineno" valign="top"></td></tr>
864      <tr><td class="lineno" valign="top"></td><td class="left">         month  64</td><td> </td><td class="right">         month  64</td><td class="lineno" valign="top"></td></tr>
865      <tr><td class="lineno" valign="top"></td><td class="left">         obs-date  65</td><td> </td><td class="right">         obs-date  65</td><td class="lineno" valign="top"></td></tr>
866      <tr><td class="lineno" valign="top"></td><td class="left">         parameter  8</td><td> </td><td class="right">         parameter  8</td><td class="lineno" valign="top"></td></tr>
867      <tr><td class="lineno" valign="top"></td><td class="left">         product  46</td><td> </td><td class="right">         product  46</td><td class="lineno" valign="top"></td></tr>
868      <tr><td class="lineno" valign="top"></td><td class="left">         product-version  46</td><td> </td><td class="right">         product-version  46</td><td class="lineno" valign="top"></td></tr>
869      <tr><td class="lineno" valign="top"></td><td class="left">         qvalue  37</td><td> </td><td class="right">         qvalue  37</td><td class="lineno" valign="top"></td></tr>
870      <tr><td><a name="diff0041" /></td></tr>
871      <tr><td class="lineno" valign="top"></td><td class="lblock">         Referer  4<span class="delete">4</span></td><td> </td><td class="rblock">         Referer  4<span class="insert">5</span></td><td class="lineno" valign="top"></td></tr>
872      <tr><td class="lineno" valign="top"></td><td class="left">         Retry-After  68</td><td> </td><td class="right">         Retry-After  68</td><td class="lineno" valign="top"></td></tr>
873      <tr><td class="lineno" valign="top"></td><td class="left">         rfc850-date  65</td><td> </td><td class="right">         rfc850-date  65</td><td class="lineno" valign="top"></td></tr>
874      <tr><td class="lineno" valign="top"></td><td class="left">         second  64</td><td> </td><td class="right">         second  64</td><td class="lineno" valign="top"></td></tr>
875      <tr><td class="lineno" valign="top"></td><td class="left">         Server  71</td><td> </td><td class="right">         Server  71</td><td class="lineno" valign="top"></td></tr>
876      <tr><td class="lineno" valign="top"></td><td class="left">         subtype  8</td><td> </td><td class="right">         subtype  8</td><td class="lineno" valign="top"></td></tr>
877      <tr><td class="lineno" valign="top"></td><td class="left">         time-of-day  64</td><td> </td><td class="right">         time-of-day  64</td><td class="lineno" valign="top"></td></tr>
878      <tr><td class="lineno" valign="top"></td><td class="left">         type  8</td><td> </td><td class="right">         type  8</td><td class="lineno" valign="top"></td></tr>
879      <tr><td><a name="diff0042" /></td></tr>
880      <tr><td class="lineno" valign="top"></td><td class="lblock">         User-Agent  4<span class="delete">5</span></td><td> </td><td class="rblock">         User-Agent  4<span class="insert">6</span></td><td class="lineno" valign="top"></td></tr>
881      <tr><td class="lineno" valign="top"></td><td class="left">         value  8</td><td> </td><td class="right">         value  8</td><td class="lineno" valign="top"></td></tr>
882      <tr><td class="lineno" valign="top"></td><td class="left">         Vary  68</td><td> </td><td class="right">         Vary  68</td><td class="lineno" valign="top"></td></tr>
883      <tr><td class="lineno" valign="top"></td><td class="left">         weight  37</td><td> </td><td class="right">         weight  37</td><td class="lineno" valign="top"></td></tr>
884      <tr><td class="lineno" valign="top"></td><td class="left">         year  64</td><td> </td><td class="right">         year  64</td><td class="lineno" valign="top"></td></tr>
885      <tr><td class="lineno" valign="top"></td><td class="left">      gzip (content coding)  11</td><td> </td><td class="right">      gzip (content coding)  11</td><td class="lineno" valign="top"></td></tr>
886      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
887      <tr><td class="lineno" valign="top"></td><td class="left">   H</td><td> </td><td class="right">   H</td><td class="lineno" valign="top"></td></tr>
888      <tr><td class="lineno" valign="top"></td><td class="left">      HEAD method  24</td><td> </td><td class="right">      HEAD method  24</td><td class="lineno" valign="top"></td></tr>
889      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
890      <tr><td class="lineno" valign="top"></td><td class="left">   I</td><td> </td><td class="right">   I</td><td class="lineno" valign="top"></td></tr>
891      <tr><td class="lineno" valign="top"></td><td class="left">      idempotent  23</td><td> </td><td class="right">      idempotent  23</td><td class="lineno" valign="top"></td></tr>
892      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
893      <tr><td class="lineno" valign="top"></td><td class="left">   L</td><td> </td><td class="right">   L</td><td class="lineno" valign="top"></td></tr>
894      <tr><td class="lineno" valign="top"></td><td class="left">      Location header field  66</td><td> </td><td class="right">      Location header field  66</td><td class="lineno" valign="top"></td></tr>
895      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
896      <tr><td class="lineno" valign="top"></td><td class="left">   M</td><td> </td><td class="right">   M</td><td class="lineno" valign="top"></td></tr>
897      <tr><td class="lineno" valign="top"></td><td class="left">      Max-Forwards header field  36</td><td> </td><td class="right">      Max-Forwards header field  36</td><td class="lineno" valign="top"></td></tr>
898      <tr><td><a name="diff0043" /></td></tr>
899      <tr><td class="lineno" valign="top"></td><td class="lblock">      MIME-Version header field  8<span class="delete">6</span></td><td> </td><td class="rblock">      MIME-Version header field  8<span class="insert">7</span></td><td class="lineno" valign="top"></td></tr>
900      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
901      <tr><td class="lineno" valign="top"></td><td class="left">   O</td><td> </td><td class="right">   O</td><td class="lineno" valign="top"></td></tr>
902      <tr><td class="lineno" valign="top"></td><td class="left">      OPTIONS method  31</td><td> </td><td class="right">      OPTIONS method  31</td><td class="lineno" valign="top"></td></tr>
903      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
904      <tr><td class="lineno" valign="top"></td><td class="left">   P</td><td> </td><td class="right">   P</td><td class="lineno" valign="top"></td></tr>
905      <tr><td class="lineno" valign="top"></td><td class="left">      payload  17</td><td> </td><td class="right">      payload  17</td><td class="lineno" valign="top"></td></tr>
906      <tr><td class="lineno" valign="top"></td><td class="left">      POST method  25</td><td> </td><td class="right">      POST method  25</td><td class="lineno" valign="top"></td></tr>
907      <tr><td class="lineno" valign="top"></td><td class="left">      PUT method  26</td><td> </td><td class="right">      PUT method  26</td><td class="lineno" valign="top"></td></tr>
908      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
909      <tr><td class="lineno" valign="top"></td><td class="left">   R</td><td> </td><td class="right">   R</td><td class="lineno" valign="top"></td></tr>
910
911     <tr><td></td><td class="left"></td><td> </td><td class="right"></td><td></td></tr>
912     <tr bgcolor="gray"><th colspan="5" align="center"><a name="end">&nbsp;End of changes. 43 change blocks.&nbsp;</a></th></tr>
913     <tr class="stats"><td></td><th><i>96 lines changed or deleted</i></th><th><i> </i></th><th><i>169 lines changed or added</i></th><td></td></tr>
914     <tr><td colspan="5" align="center" class="small"><br/>This html diff was produced by rfcdiff 1.38. The latest version is available from <a href="http://www.tools.ietf.org/tools/rfcdiff/" >http://tools.ietf.org/tools/rfcdiff/</a> </td></tr>
915   </table>
916   </body>
917   </html>
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