source: draft-ietf-httpbis/diffs/draft-ietf-httpbis-p1-messaging-07-from-6.diff.html @ 661

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36<body > 
37  <table border="0" cellpadding="0" cellspacing="0"> 
38  <tr bgcolor="orange"><th></th><th>&nbsp;draft-ietf-httpbis-p1-messaging-06.txt&nbsp;</th><th> </th><th>&nbsp;draft-ietf-httpbis-p1-messaging-07.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                                              Day Software</td><td> </td><td class="right">Internet-Draft                                              Day Software</td><td class="lineno" valign="top"></td></tr>
42      <tr><td class="lineno" valign="top"></td><td class="left">Obsoletes: 2616 (if approved)                                  J. Gettys</td><td> </td><td class="right">Obsoletes: 2616 (if approved)                                  J. Gettys</td><td class="lineno" valign="top"></td></tr>
43      <tr><td class="lineno" valign="top"></td><td class="left">Intended status: Standards Track                    One Laptop per Child</td><td> </td><td class="right">Intended status: Standards Track                    One Laptop per Child</td><td class="lineno" valign="top"></td></tr>
44      <tr><td><a name="diff0001" /></td></tr>
45      <tr><td class="lineno" valign="top"></td><td class="lblock">Expires: <span class="delete">September 10, 2009</span>                                     J. Mogul</td><td> </td><td class="rblock">Expires: <span class="insert">January 14, 2010  </span>                                     J. Mogul</td><td class="lineno" valign="top"></td></tr>
46      <tr><td class="lineno" valign="top"></td><td class="left">                                                                      HP</td><td> </td><td class="right">                                                                      HP</td><td class="lineno" valign="top"></td></tr>
47      <tr><td class="lineno" valign="top"></td><td class="left">                                                              H. Frystyk</td><td> </td><td class="right">                                                              H. Frystyk</td><td class="lineno" valign="top"></td></tr>
48      <tr><td class="lineno" valign="top"></td><td class="left">                                                               Microsoft</td><td> </td><td class="right">                                                               Microsoft</td><td class="lineno" valign="top"></td></tr>
49      <tr><td class="lineno" valign="top"></td><td class="left">                                                             L. Masinter</td><td> </td><td class="right">                                                             L. Masinter</td><td class="lineno" valign="top"></td></tr>
50      <tr><td class="lineno" valign="top"></td><td class="left">                                                           Adobe Systems</td><td> </td><td class="right">                                                           Adobe Systems</td><td class="lineno" valign="top"></td></tr>
51      <tr><td class="lineno" valign="top"></td><td class="left">                                                                P. Leach</td><td> </td><td class="right">                                                                P. Leach</td><td class="lineno" valign="top"></td></tr>
52      <tr><td class="lineno" valign="top"></td><td class="left">                                                               Microsoft</td><td> </td><td class="right">                                                               Microsoft</td><td class="lineno" valign="top"></td></tr>
53      <tr><td class="lineno" valign="top"></td><td class="left">                                                          T. Berners-Lee</td><td> </td><td class="right">                                                          T. Berners-Lee</td><td class="lineno" valign="top"></td></tr>
54      <tr><td class="lineno" valign="top"></td><td class="left">                                                                 W3C/MIT</td><td> </td><td class="right">                                                                 W3C/MIT</td><td class="lineno" valign="top"></td></tr>
55      <tr><td class="lineno" valign="top"></td><td class="left">                                                           Y. Lafon, Ed.</td><td> </td><td class="right">                                                           Y. Lafon, Ed.</td><td class="lineno" valign="top"></td></tr>
56      <tr><td class="lineno" valign="top"></td><td class="left">                                                                     W3C</td><td> </td><td class="right">                                                                     W3C</td><td class="lineno" valign="top"></td></tr>
57      <tr><td class="lineno" valign="top"></td><td class="left">                                                         J. Reschke, Ed.</td><td> </td><td class="right">                                                         J. Reschke, Ed.</td><td class="lineno" valign="top"></td></tr>
58      <tr><td class="lineno" valign="top"></td><td class="left">                                                              greenbytes</td><td> </td><td class="right">                                                              greenbytes</td><td class="lineno" valign="top"></td></tr>
59      <tr><td><a name="diff0002" /></td></tr>
60      <tr><td class="lineno" valign="top"></td><td class="lblock">                                                           <span class="delete">March 9</span>, 2009</td><td> </td><td class="rblock">                                                           <span class="insert">July 13</span>, 2009</td><td class="lineno" valign="top"></td></tr>
61      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
62      <tr><td class="lineno" valign="top"></td><td class="left">        HTTP/1.1, part 1: URIs, Connections, and Message Parsing</td><td> </td><td class="right">        HTTP/1.1, part 1: URIs, Connections, and Message Parsing</td><td class="lineno" valign="top"></td></tr>
63      <tr><td><a name="diff0003" /></td></tr>
64      <tr><td class="lineno" valign="top"></td><td class="lblock">                   draft-ietf-httpbis-p1-messaging-0<span class="delete">6</span></td><td> </td><td class="rblock">                   draft-ietf-httpbis-p1-messaging-0<span class="insert">7</span></td><td class="lineno" valign="top"></td></tr>
65      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
66      <tr><td class="lineno" valign="top"></td><td class="left">Status of this Memo</td><td> </td><td class="right">Status of this Memo</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">   This Internet-Draft is submitted to IETF in full conformance with the</td><td> </td><td class="right">   This Internet-Draft is submitted to IETF in full conformance with the</td><td class="lineno" valign="top"></td></tr>
69      <tr><td class="lineno" valign="top"></td><td class="left">   provisions of BCP 78 and BCP 79.  This document may contain material</td><td> </td><td class="right">   provisions of BCP 78 and BCP 79.  This document may contain material</td><td class="lineno" valign="top"></td></tr>
70      <tr><td class="lineno" valign="top"></td><td class="left">   from IETF Documents or IETF Contributions published or made publicly</td><td> </td><td class="right">   from IETF Documents or IETF Contributions published or made publicly</td><td class="lineno" valign="top"></td></tr>
71      <tr><td class="lineno" valign="top"></td><td class="left">   available before November 10, 2008.  The person(s) controlling the</td><td> </td><td class="right">   available before November 10, 2008.  The person(s) controlling the</td><td class="lineno" valign="top"></td></tr>
72      <tr><td class="lineno" valign="top"></td><td class="left">   copyright in some of this material may not have granted the IETF</td><td> </td><td class="right">   copyright in some of this material may not have granted the IETF</td><td class="lineno" valign="top"></td></tr>
73      <tr><td class="lineno" valign="top"></td><td class="left">   Trust the right to allow modifications of such material outside the</td><td> </td><td class="right">   Trust the right to allow modifications of such material outside the</td><td class="lineno" valign="top"></td></tr>
74      <tr><td class="lineno" valign="top"></td><td class="left">   IETF Standards Process.  Without obtaining an adequate license from</td><td> </td><td class="right">   IETF Standards Process.  Without obtaining an adequate license from</td><td class="lineno" valign="top"></td></tr>
75      <tr><td class="lineno"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno"></td></tr>
76      <tr bgcolor="gray" ><td></td><th><a name="part-l2" /><small>skipping to change at</small><em> page 2, line 10</em></th><th> </th><th><a name="part-r2" /><small>skipping to change at</small><em> page 2, line 10</em></th><td></td></tr>
77      <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>
78      <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>
79      <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>
80      <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>
81      <tr><td class="lineno" valign="top"></td><td class="left">   The list of current Internet-Drafts can be accessed at</td><td> </td><td class="right">   The list of current Internet-Drafts can be accessed at</td><td class="lineno" valign="top"></td></tr>
82      <tr><td class="lineno" valign="top"></td><td class="left">   http://www.ietf.org/ietf/1id-abstracts.txt.</td><td> </td><td class="right">   http://www.ietf.org/ietf/1id-abstracts.txt.</td><td class="lineno" valign="top"></td></tr>
83      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
84      <tr><td class="lineno" valign="top"></td><td class="left">   The list of Internet-Draft Shadow Directories can be accessed at</td><td> </td><td class="right">   The list of Internet-Draft Shadow Directories can be accessed at</td><td class="lineno" valign="top"></td></tr>
85      <tr><td class="lineno" valign="top"></td><td class="left">   http://www.ietf.org/shadow.html.</td><td> </td><td class="right">   http://www.ietf.org/shadow.html.</td><td class="lineno" valign="top"></td></tr>
86      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
87      <tr><td><a name="diff0004" /></td></tr>
88      <tr><td class="lineno" valign="top"></td><td class="lblock">   This Internet-Draft will expire on <span class="delete">September 10, 2009</span>.</td><td> </td><td class="rblock">   This Internet-Draft will expire on <span class="insert">January 14, 2010</span>.</td><td class="lineno" valign="top"></td></tr>
89      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
90      <tr><td class="lineno" valign="top"></td><td class="left">Copyright Notice</td><td> </td><td class="right">Copyright Notice</td><td class="lineno" valign="top"></td></tr>
91      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
92      <tr><td class="lineno" valign="top"></td><td class="left">   Copyright (c) 2009 IETF Trust and the persons identified as the</td><td> </td><td class="right">   Copyright (c) 2009 IETF Trust and the persons identified as the</td><td class="lineno" valign="top"></td></tr>
93      <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>
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">   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>
96      <tr><td class="lineno" valign="top"></td><td class="left">   Provisions Relating to IETF Documents in effect on the date of</td><td> </td><td class="right">   Provisions Relating to IETF Documents in effect on the date of</td><td class="lineno" valign="top"></td></tr>
97      <tr><td class="lineno" valign="top"></td><td class="left">   publication of this document (http://trustee.ietf.org/license-info).</td><td> </td><td class="right">   publication of this document (http://trustee.ietf.org/license-info).</td><td class="lineno" valign="top"></td></tr>
98      <tr><td class="lineno" valign="top"></td><td class="left">   Please review these documents carefully, as they describe your rights</td><td> </td><td class="right">   Please review these documents carefully, as they describe your rights</td><td class="lineno" valign="top"></td></tr>
99      <tr><td class="lineno"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno"></td></tr>
100      <tr bgcolor="gray" ><td></td><th><a name="part-l3" /><small>skipping to change at</small><em> page 2, line 44</em></th><th> </th><th><a name="part-r3" /><small>skipping to change at</small><em> page 2, line 44</em></th><td></td></tr>
101      <tr><td class="lineno" valign="top"></td><td class="left">   frames, and describes general security concerns for implementations.</td><td> </td><td class="right">   frames, and describes general security concerns for implementations.</td><td class="lineno" valign="top"></td></tr>
102      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
103      <tr><td class="lineno" valign="top"></td><td class="left">Editorial Note (To be removed by RFC Editor)</td><td> </td><td class="right">Editorial Note (To be removed by RFC Editor)</td><td class="lineno" valign="top"></td></tr>
104      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
105      <tr><td class="lineno" valign="top"></td><td class="left">   Discussion of this draft should take place on the HTTPBIS working</td><td> </td><td class="right">   Discussion of this draft should take place on the HTTPBIS working</td><td class="lineno" valign="top"></td></tr>
106      <tr><td class="lineno" valign="top"></td><td class="left">   group mailing list (ietf-http-wg@w3.org).  The current issues list is</td><td> </td><td class="right">   group mailing list (ietf-http-wg@w3.org).  The current issues list is</td><td class="lineno" valign="top"></td></tr>
107      <tr><td class="lineno" valign="top"></td><td class="left">   at &lt;http://tools.ietf.org/wg/httpbis/trac/report/11&gt; and related</td><td> </td><td class="right">   at &lt;http://tools.ietf.org/wg/httpbis/trac/report/11&gt; and related</td><td class="lineno" valign="top"></td></tr>
108      <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>
109      <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>
110      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
111      <tr><td><a name="diff0005" /></td></tr>
112      <tr><td class="lineno" valign="top"></td><td class="lblock">   The changes in this draft are summarized in Appendix E.<span class="delete">7</span>.</td><td> </td><td class="rblock">   The changes in this draft are summarized in Appendix E.<span class="insert">8</span>.</td><td class="lineno" valign="top"></td></tr>
113      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
114      <tr><td class="lineno" valign="top"></td><td class="left">Table of Contents</td><td> </td><td class="right">Table of Contents</td><td class="lineno" valign="top"></td></tr>
115      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
116      <tr><td class="lineno" valign="top"></td><td class="left">   1.  Introduction . . . . . . . . . . . . . . . . . . . . . . . . .  6</td><td> </td><td class="right">   1.  Introduction . . . . . . . . . . . . . . . . . . . . . . . . .  6</td><td class="lineno" valign="top"></td></tr>
117      <tr><td class="lineno" valign="top"></td><td class="left">     1.1.  Requirements . . . . . . . . . . . . . . . . . . . . . . .  7</td><td> </td><td class="right">     1.1.  Requirements . . . . . . . . . . . . . . . . . . . . . . .  7</td><td class="lineno" valign="top"></td></tr>
118      <tr><td class="lineno" valign="top"></td><td class="left">     1.2.  Syntax Notation  . . . . . . . . . . . . . . . . . . . . .  7</td><td> </td><td class="right">     1.2.  Syntax Notation  . . . . . . . . . . . . . . . . . . . . .  7</td><td class="lineno" valign="top"></td></tr>
119      <tr><td class="lineno" valign="top"></td><td class="left">       1.2.1.  ABNF Extension: #rule  . . . . . . . . . . . . . . . .  7</td><td> </td><td class="right">       1.2.1.  ABNF Extension: #rule  . . . . . . . . . . . . . . . .  7</td><td class="lineno" valign="top"></td></tr>
120      <tr><td class="lineno" valign="top"></td><td class="left">       1.2.2.  Basic Rules  . . . . . . . . . . . . . . . . . . . . .  8</td><td> </td><td class="right">       1.2.2.  Basic Rules  . . . . . . . . . . . . . . . . . . . . .  8</td><td class="lineno" valign="top"></td></tr>
121      <tr><td class="lineno" valign="top"></td><td class="left">       1.2.3.  ABNF Rules defined in other Parts of the</td><td> </td><td class="right">       1.2.3.  ABNF Rules defined in other Parts of the</td><td class="lineno" valign="top"></td></tr>
122      <tr><td class="lineno" valign="top"></td><td class="left">               Specification  . . . . . . . . . . . . . . . . . . . .  9</td><td> </td><td class="right">               Specification  . . . . . . . . . . . . . . . . . . . .  9</td><td class="lineno" valign="top"></td></tr>
123      <tr><td class="lineno"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno"></td></tr>
124      <tr bgcolor="gray" ><td></td><th><a name="part-l4" /><small>skipping to change at</small><em> page 3, line 27</em></th><th> </th><th><a name="part-r4" /><small>skipping to change at</small><em> page 3, line 27</em></th><td></td></tr>
125      <tr><td class="lineno" valign="top"></td><td class="left">       2.1.2.  https URI scheme . . . . . . . . . . . . . . . . . . . 11</td><td> </td><td class="right">       2.1.2.  https URI scheme . . . . . . . . . . . . . . . . . . . 11</td><td class="lineno" valign="top"></td></tr>
126      <tr><td class="lineno" valign="top"></td><td class="left">       2.1.3.  URI Comparison . . . . . . . . . . . . . . . . . . . . 11</td><td> </td><td class="right">       2.1.3.  URI Comparison . . . . . . . . . . . . . . . . . . . . 11</td><td class="lineno" valign="top"></td></tr>
127      <tr><td class="lineno" valign="top"></td><td class="left">       2.1.4.  Scheme aliases considered harmful  . . . . . . . . . . 12</td><td> </td><td class="right">       2.1.4.  Scheme aliases considered harmful  . . . . . . . . . . 12</td><td class="lineno" valign="top"></td></tr>
128      <tr><td class="lineno" valign="top"></td><td class="left">     2.2.  Overall Operation  . . . . . . . . . . . . . . . . . . . . 12</td><td> </td><td class="right">     2.2.  Overall Operation  . . . . . . . . . . . . . . . . . . . . 12</td><td class="lineno" valign="top"></td></tr>
129      <tr><td class="lineno" valign="top"></td><td class="left">     2.3.  Use of HTTP for proxy communication  . . . . . . . . . . . 14</td><td> </td><td class="right">     2.3.  Use of HTTP for proxy communication  . . . . . . . . . . . 14</td><td class="lineno" valign="top"></td></tr>
130      <tr><td class="lineno" valign="top"></td><td class="left">     2.4.  Interception of HTTP for access control  . . . . . . . . . 14</td><td> </td><td class="right">     2.4.  Interception of HTTP for access control  . . . . . . . . . 14</td><td class="lineno" valign="top"></td></tr>
131      <tr><td class="lineno" valign="top"></td><td class="left">     2.5.  Use of HTTP by other protocols . . . . . . . . . . . . . . 14</td><td> </td><td class="right">     2.5.  Use of HTTP by other protocols . . . . . . . . . . . . . . 14</td><td class="lineno" valign="top"></td></tr>
132      <tr><td class="lineno" valign="top"></td><td class="left">     2.6.  Use of HTTP by media type specification  . . . . . . . . . 14</td><td> </td><td class="right">     2.6.  Use of HTTP by media type specification  . . . . . . . . . 14</td><td class="lineno" valign="top"></td></tr>
133      <tr><td class="lineno" valign="top"></td><td class="left">   3.  Protocol Parameters  . . . . . . . . . . . . . . . . . . . . . 14</td><td> </td><td class="right">   3.  Protocol Parameters  . . . . . . . . . . . . . . . . . . . . . 14</td><td class="lineno" valign="top"></td></tr>
134      <tr><td class="lineno" valign="top"></td><td class="left">     3.1.  HTTP Version . . . . . . . . . . . . . . . . . . . . . . . 14</td><td> </td><td class="right">     3.1.  HTTP Version . . . . . . . . . . . . . . . . . . . . . . . 14</td><td class="lineno" valign="top"></td></tr>
135      <tr><td><a name="diff0006" /></td></tr>
136      <tr><td class="lineno" valign="top"></td><td class="lblock">     3.2.  Date/Time <span class="delete">Formats  . . . . . . . . . . . . . . . . . . . . 15</span></td><td> </td><td class="rblock">     3.2.  Date/Time <span class="insert">Formats:</span> Full Date . . . . . . . . . . . . . . . 15</td><td class="lineno" valign="top"></td></tr>
137      <tr><td class="lineno" valign="top"></td><td class="lblock"><span class="delete">       3.2.1.</span>  Full Date  . . . . . . . . . . . . . . . <span class="delete">. . . . . . .</span> 15</td><td> </td><td class="rblock">     3.3.  Transfer Codings . . . . . . . . . . . . . . . . . . . . . <span class="insert">18</span></td><td class="lineno" valign="top"></td></tr>
138      <tr><td class="lineno" valign="top"></td><td class="lblock">     3.3.  Transfer Codings . . . . . . . . . . . . . . . . . . . . . <span class="delete">17</span></td><td> </td><td class="rblock">       3.3.1.  Chunked Transfer Coding  . . . . . . . . . . . . . . . <span class="insert">19</span></td><td class="lineno" valign="top"></td></tr>
139      <tr><td class="lineno" valign="top"></td><td class="lblock">       3.3.1.  Chunked Transfer Coding  . . . . . . . . . . . . . . . <span class="delete">18</span></td><td> </td><td class="rblock">     3.4.  Product Tokens . . . . . . . . . . . . . . . . . . . . . . <span class="insert">21</span></td><td class="lineno" valign="top"></td></tr>
140      <tr><td class="lineno" valign="top"></td><td class="lblock">     3.4.  Product Tokens . . . . . . . . . . . . . . . . . . . . . . <span class="delete">20</span></td><td> </td><td class="rblock">     3.5.  Quality Values . . . . . . . . . . . . . . . . . . . . . . <span class="insert">22</span></td><td class="lineno" valign="top"></td></tr>
141      <tr><td class="lineno" valign="top"></td><td class="lblock">     3.5.  Quality Values . . . . . . . . . . . . . . . . . . . . . . <span class="delete">21</span></td><td> </td><td class="rblock">   4.  HTTP Message . . . . . . . . . . . . . . . . . . . . . . . . . <span class="insert">22</span></td><td class="lineno" valign="top"></td></tr>
142      <tr><td class="lineno" valign="top"></td><td class="lblock">   4.  HTTP Message . . . . . . . . . . . . . . . . . . . . . . . . . <span class="delete">21</span></td><td> </td><td class="rblock">     4.1.  Message Types  . . . . . . . . . . . . . . . . . . . . . . <span class="insert">22</span></td><td class="lineno" valign="top"></td></tr>
143      <tr><td class="lineno" valign="top"></td><td class="lblock">     4.1.  Message Types  . . . . . . . . . . . . . . . . . . . . . . <span class="delete">21</span></td><td> </td><td class="rblock">     4.2.  Message Headers  . . . . . . . . . . . . . . . . . . . . . <span class="insert">23</span></td><td class="lineno" valign="top"></td></tr>
144      <tr><td class="lineno" valign="top"></td><td class="lblock">     4.2.  Message Headers  . . . . . . . . . . . . . . . . . . . . . <span class="delete">22</span></td><td> </td><td class="rblock">     4.3.  Message Body . . . . . . . . . . . . . . . . . . . . . . . <span class="insert">24</span></td><td class="lineno" valign="top"></td></tr>
145      <tr><td class="lineno" valign="top"></td><td class="lblock">     4.3.  Message Body . . . . . . . . . . . . . . . . . . . . . . . <span class="delete">23</span></td><td> </td><td class="rblock">     4.4.  Message Length . . . . . . . . . . . . . . . . . . . . . . <span class="insert">25</span></td><td class="lineno" valign="top"></td></tr>
146      <tr><td class="lineno" valign="top"></td><td class="lblock">     4.4.  Message Length . . . . . . . . . . . . . . . . . . . . . . <span class="delete">24</span></td><td> </td><td class="rblock">     4.5.  General Header Fields  . . . . . . . . . . . . . . . . . . <span class="insert">27</span></td><td class="lineno" valign="top"></td></tr>
147      <tr><td class="lineno" valign="top"></td><td class="lblock">     4.5.  General Header Fields  . . . . . . . . . . . . . . . . . . <span class="delete">26</span></td><td> </td><td class="rblock">   5.  Request  . . . . . . . . . . . . . . . . . . . . . . . . . . . <span class="insert">27</span></td><td class="lineno" valign="top"></td></tr>
148      <tr><td class="lineno" valign="top"></td><td class="lblock">   5.  Request  . . . . . . . . . . . . . . . . . . . . . . . . . . . <span class="delete">26</span></td><td> </td><td class="rblock"></td><td class="lineno" valign="top"></td></tr>
149      <tr><td class="lineno" valign="top"></td><td class="left">     5.1.  Request-Line . . . . . . . . . . . . . . . . . . . . . . . 27</td><td> </td><td class="right">     5.1.  Request-Line . . . . . . . . . . . . . . . . . . . . . . . 27</td><td class="lineno" valign="top"></td></tr>
150      <tr><td><a name="diff0007" /></td></tr>
151      <tr><td class="lineno" valign="top"></td><td class="lblock">       5.1.1.  Method . . . . . . . . . . . . . . . . . . . . . . . . <span class="delete">27</span></td><td> </td><td class="rblock">       5.1.1.  Method . . . . . . . . . . . . . . . . . . . . . . . . <span class="insert">28</span></td><td class="lineno" valign="top"></td></tr>
152      <tr><td class="lineno" valign="top"></td><td class="lblock">       5.1.2.  request-target . . . . . . . . . . . . . . . . . . . . <span class="delete">27</span></td><td> </td><td class="rblock">       5.1.2.  request-target . . . . . . . . . . . . . . . . . . . . <span class="insert">28</span></td><td class="lineno" valign="top"></td></tr>
153      <tr><td class="lineno" valign="top"></td><td class="lblock">     5.2.  The Resource Identified by a Request . . . . . . . . . . . <span class="delete">29</span></td><td> </td><td class="rblock">     5.2.  The Resource Identified by a Request . . . . . . . . . . . <span class="insert">30</span></td><td class="lineno" valign="top"></td></tr>
154      <tr><td class="lineno" valign="top"></td><td class="left">   6.  Response . . . . . . . . . . . . . . . . . . . . . . . . . . . 30</td><td> </td><td class="right">   6.  Response . . . . . . . . . . . . . . . . . . . . . . . . . . . 30</td><td class="lineno" valign="top"></td></tr>
155      <tr><td><a name="diff0008" /></td></tr>
156      <tr><td class="lineno" valign="top"></td><td class="lblock">     6.1.  Status-Line  . . . . . . . . . . . . . . . . . . . . . . . <span class="delete">30</span></td><td> </td><td class="rblock">     6.1.  Status-Line  . . . . . . . . . . . . . . . . . . . . . . . <span class="insert">31</span></td><td class="lineno" valign="top"></td></tr>
157      <tr><td class="lineno" valign="top"></td><td class="lblock">       6.1.1.  Status Code and Reason Phrase  . . . . . . . . . . . . <span class="delete">30</span></td><td> </td><td class="rblock">       6.1.1.  Status Code and Reason Phrase  . . . . . . . . . . . . <span class="insert">31</span></td><td class="lineno" valign="top"></td></tr>
158      <tr><td class="lineno" valign="top"></td><td class="lblock">   7.  Connections  . . . . . . . . . . . . . . . . . . . . . . . . . <span class="delete">31</span></td><td> </td><td class="rblock">   7.  Connections  . . . . . . . . . . . . . . . . . . . . . . . . . <span class="insert">32</span></td><td class="lineno" valign="top"></td></tr>
159      <tr><td class="lineno" valign="top"></td><td class="lblock">     7.1.  Persistent Connections . . . . . . . . . . . . . . . . . . <span class="delete">31</span></td><td> </td><td class="rblock">     7.1.  Persistent Connections . . . . . . . . . . . . . . . . . . <span class="insert">32</span></td><td class="lineno" valign="top"></td></tr>
160      <tr><td class="lineno" valign="top"></td><td class="lblock">       7.1.1.  Purpose  . . . . . . . . . . . . . . . . . . . . . . . <span class="delete">31</span></td><td> </td><td class="rblock">       7.1.1.  Purpose  . . . . . . . . . . . . . . . . . . . . . . . <span class="insert">32</span></td><td class="lineno" valign="top"></td></tr>
161      <tr><td class="lineno" valign="top"></td><td class="left">       7.1.2.  Overall Operation  . . . . . . . . . . . . . . . . . . 32</td><td> </td><td class="right">       7.1.2.  Overall Operation  . . . . . . . . . . . . . . . . . . 32</td><td class="lineno" valign="top"></td></tr>
162      <tr><td><a name="diff0009" /></td></tr>
163      <tr><td class="lineno" valign="top"></td><td class="lblock">       7.1.3.  Proxy Servers  . . . . . . . . . . . . . . . . . . . . <span class="delete">33</span></td><td> </td><td class="rblock">       7.1.3.  Proxy Servers  . . . . . . . . . . . . . . . . . . . . <span class="insert">34</span></td><td class="lineno" valign="top"></td></tr>
164      <tr><td class="lineno" valign="top"></td><td class="lblock">       7.1.4.  Practical Considerations . . . . . . . . . . . . . . . <span class="delete">33</span></td><td> </td><td class="rblock">       7.1.4.  Practical Considerations . . . . . . . . . . . . . . . <span class="insert">34</span></td><td class="lineno" valign="top"></td></tr>
165      <tr><td class="lineno" valign="top"></td><td class="lblock">     7.2.  Message Transmission Requirements  . . . . . . . . . . . . <span class="delete">34</span></td><td> </td><td class="rblock">     7.2.  Message Transmission Requirements  . . . . . . . . . . . . <span class="insert">35</span></td><td class="lineno" valign="top"></td></tr>
166      <tr><td class="lineno" valign="top"></td><td class="lblock">       7.2.1.  Persistent Connections and Flow Control  . . . . . . . <span class="delete">34</span></td><td> </td><td class="rblock">       7.2.1.  Persistent Connections and Flow Control  . . . . . . . <span class="insert">35</span></td><td class="lineno" valign="top"></td></tr>
167      <tr><td class="lineno" valign="top"></td><td class="left">       7.2.2.  Monitoring Connections for Error Status Messages . . . 35</td><td> </td><td class="right">       7.2.2.  Monitoring Connections for Error Status Messages . . . 35</td><td class="lineno" valign="top"></td></tr>
168      <tr><td><a name="diff0010" /></td></tr>
169      <tr><td class="lineno" valign="top"></td><td class="lblock">       7.2.3.  Use of the 100 (Continue) Status . . . . . . . . . . . 3<span class="delete">5</span></td><td> </td><td class="rblock">       7.2.3.  Use of the 100 (Continue) Status . . . . . . . . . . . 3<span class="insert">6</span></td><td class="lineno" valign="top"></td></tr>
170      <tr><td class="lineno" valign="top"></td><td class="left">       7.2.4.  Client Behavior if Server Prematurely Closes</td><td> </td><td class="right">       7.2.4.  Client Behavior if Server Prematurely Closes</td><td class="lineno" valign="top"></td></tr>
171      <tr><td><a name="diff0011" /></td></tr>
172      <tr><td class="lineno" valign="top"></td><td class="lblock">               Connection . . . . . . . . . . . . . . . . . . . . . . 3<span class="delete">7</span></td><td> </td><td class="rblock">               Connection . . . . . . . . . . . . . . . . . . . . . . 3<span class="insert">8</span></td><td class="lineno" valign="top"></td></tr>
173      <tr><td class="lineno" valign="top"></td><td class="left">   8.  Header Field Definitions . . . . . . . . . . . . . . . . . . . 38</td><td> </td><td class="right">   8.  Header Field Definitions . . . . . . . . . . . . . . . . . . . 38</td><td class="lineno" valign="top"></td></tr>
174      <tr><td><a name="diff0012" /></td></tr>
175      <tr><td class="lineno" valign="top"></td><td class="lblock">     8.1.  Connection . . . . . . . . . . . . . . . . . . . . . . . . <span class="delete">38</span></td><td> </td><td class="rblock">     8.1.  Connection . . . . . . . . . . . . . . . . . . . . . . . . <span class="insert">39</span></td><td class="lineno" valign="top"></td></tr>
176      <tr><td class="lineno" valign="top"></td><td class="lblock">     8.2.  Content-Length . . . . . . . . . . . . . . . . . . . . . . <span class="delete">39</span></td><td> </td><td class="rblock">     8.2.  Content-Length . . . . . . . . . . . . . . . . . . . . . . <span class="insert">40</span></td><td class="lineno" valign="top"></td></tr>
177      <tr><td class="lineno" valign="top"></td><td class="lblock">     8.3.  Date . . . . . . . . . . . . . . . . . . . . . . . . . . . <span class="delete">39</span></td><td> </td><td class="rblock">     8.3.  Date . . . . . . . . . . . . . . . . . . . . . . . . . . . <span class="insert">40</span></td><td class="lineno" valign="top"></td></tr>
178      <tr><td class="lineno" valign="top"></td><td class="left">       8.3.1.  Clockless Origin Server Operation  . . . . . . . . . . 41</td><td> </td><td class="right">       8.3.1.  Clockless Origin Server Operation  . . . . . . . . . . 41</td><td class="lineno" valign="top"></td></tr>
179      <tr><td><a name="diff0013" /></td></tr>
180      <tr><td class="lineno" valign="top"></td><td class="lblock">     8.4.  Host . . . . . . . . . . . . . . . . . . . . . . . . . . . 4<span class="delete">1</span></td><td> </td><td class="rblock">     8.4.  Host . . . . . . . . . . . . . . . . . . . . . . . . . . . 4<span class="insert">2</span></td><td class="lineno" valign="top"></td></tr>
181      <tr><td class="lineno" valign="top"></td><td class="left">     8.5.  TE . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42</td><td> </td><td class="right">     8.5.  TE . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42</td><td class="lineno" valign="top"></td></tr>
182      <tr><td><a name="diff0014" /></td></tr>
183      <tr><td class="lineno" valign="top"></td><td class="lblock">     8.6.  Trailer  . . . . . . . . . . . . . . . . . . . . . . . . . <span class="delete">43</span></td><td> </td><td class="rblock">     8.6.  Trailer  . . . . . . . . . . . . . . . . . . . . . . . . . <span class="insert">44</span></td><td class="lineno" valign="top"></td></tr>
184      <tr><td class="lineno" valign="top"></td><td class="lblock">     8.7.  Transfer-Encoding  . . . . . . . . . . . . . . . . . . . . <span class="delete">43</span></td><td> </td><td class="rblock">     8.7.  Transfer-Encoding  . . . . . . . . . . . . . . . . . . . . <span class="insert">44</span></td><td class="lineno" valign="top"></td></tr>
185      <tr><td class="lineno" valign="top"></td><td class="lblock">     8.8.  Upgrade  . . . . . . . . . . . . . . . . . . . . . . . . . <span class="delete">44</span></td><td> </td><td class="rblock">     8.8.  Upgrade  . . . . . . . . . . . . . . . . . . . . . . . . . <span class="insert">45</span></td><td class="lineno" valign="top"></td></tr>
186      <tr><td class="lineno" valign="top"></td><td class="lblock">     8.9.  Via  . . . . . . . . . . . . . . . . . . . . . . . . . . . <span class="delete">45</span></td><td> </td><td class="rblock">     8.9.  Via  . . . . . . . . . . . . . . . . . . . . . . . . . . . <span class="insert">46</span></td><td class="lineno" valign="top"></td></tr>
187      <tr><td class="lineno" valign="top"></td><td class="left">   9.  IANA Considerations  . . . . . . . . . . . . . . . . . . . . . 47</td><td> </td><td class="right">   9.  IANA Considerations  . . . . . . . . . . . . . . . . . . . . . 47</td><td class="lineno" valign="top"></td></tr>
188      <tr><td class="lineno" valign="top"></td><td class="left">     9.1.  Message Header Registration  . . . . . . . . . . . . . . . 47</td><td> </td><td class="right">     9.1.  Message Header Registration  . . . . . . . . . . . . . . . 47</td><td class="lineno" valign="top"></td></tr>
189      <tr><td><a name="diff0015" /></td></tr>
190      <tr><td class="lineno" valign="top"></td><td class="lblock">     9.2.  URI Scheme Registration  . . . . . . . . . . . . . . . . . <span class="delete">47</span></td><td> </td><td class="rblock">     9.2.  URI Scheme Registration  . . . . . . . . . . . . . . . . . <span class="insert">48</span></td><td class="lineno" valign="top"></td></tr>
191      <tr><td class="lineno" valign="top"></td><td class="lblock">     9.3.  Internet Media Type Registrations  . . . . . . . . . . . . <span class="delete">47</span></td><td> </td><td class="rblock">     9.3.  Internet Media Type Registrations  . . . . . . . . . . . . <span class="insert">48</span></td><td class="lineno" valign="top"></td></tr>
192      <tr><td class="lineno" valign="top"></td><td class="lblock">       9.3.1.  Internet Media Type message/http . . . . . . . . . . . <span class="delete">47</span></td><td> </td><td class="rblock">       9.3.1.  Internet Media Type message/http . . . . . . . . . . . <span class="insert">48</span></td><td class="lineno" valign="top"></td></tr>
193      <tr><td class="lineno" valign="top"></td><td class="lblock">       9.3.2.  Internet Media Type application/http . . . . . . . . . <span class="delete">48</span></td><td> </td><td class="rblock">       9.3.2.  Internet Media Type application/http . . . . . . . . . <span class="insert">49</span></td><td class="lineno" valign="top"></td></tr>
194      <tr><td class="lineno" valign="top"></td><td class="left">   10. Security Considerations  . . . . . . . . . . . . . . . . . . . 50</td><td> </td><td class="right">   10. Security Considerations  . . . . . . . . . . . . . . . . . . . 50</td><td class="lineno" valign="top"></td></tr>
195      <tr><td><a name="diff0016" /></td></tr>
196      <tr><td class="lineno" valign="top"></td><td class="lblock">     10.1. Personal Information . . . . . . . . . . . . . . . . . . . <span class="delete">50</span></td><td> </td><td class="rblock">     10.1. Personal Information . . . . . . . . . . . . . . . . . . . <span class="insert">51</span></td><td class="lineno" valign="top"></td></tr>
197      <tr><td class="lineno" valign="top"></td><td class="lblock">     10.2. Abuse of Server Log Information  . . . . . . . . . . . . . <span class="delete">50</span></td><td> </td><td class="rblock">     10.2. Abuse of Server Log Information  . . . . . . . . . . . . . <span class="insert">51</span></td><td class="lineno" valign="top"></td></tr>
198      <tr><td class="lineno" valign="top"></td><td class="lblock">     10.3. Attacks Based On File and Path Names . . . . . . . . . . . <span class="delete">50</span></td><td> </td><td class="rblock">     10.3. Attacks Based On File and Path Names . . . . . . . . . . . <span class="insert">51</span></td><td class="lineno" valign="top"></td></tr>
199      <tr><td class="lineno" valign="top"></td><td class="left">     10.4. DNS Spoofing . . . . . . . . . . . . . . . . . . . . . . . 51</td><td> </td><td class="right">     10.4. DNS Spoofing . . . . . . . . . . . . . . . . . . . . . . . 51</td><td class="lineno" valign="top"></td></tr>
200      <tr><td><a name="diff0017" /></td></tr>
201      <tr><td class="lineno" valign="top"></td><td class="lblock">     10.5. Proxies and Caching  . . . . . . . . . . . . . . . . . . . <span class="delete">51</span></td><td> </td><td class="rblock">     10.5. Proxies and Caching  . . . . . . . . . . . . . . . . . . . <span class="insert">52</span></td><td class="lineno" valign="top"></td></tr>
202      <tr><td class="lineno" valign="top"></td><td class="lblock">     10.6. Denial of Service Attacks on Proxies . . . . . . . . . . . <span class="delete">52</span></td><td> </td><td class="rblock">     10.6. Denial of Service Attacks on Proxies . . . . . . . . . . . <span class="insert">53</span></td><td class="lineno" valign="top"></td></tr>
203      <tr><td class="lineno" valign="top"></td><td class="lblock">   11. Acknowledgments  . . . . . . . . . . . . . . . . . . . . . . . <span class="delete">52</span></td><td> </td><td class="rblock">   11. Acknowledgments  . . . . . . . . . . . . . . . . . . . . . . . <span class="insert">53</span></td><td class="lineno" valign="top"></td></tr>
204      <tr><td class="lineno" valign="top"></td><td class="lblock">   12. References . . . . . . . . . . . . . . . . . . . . . . . . . . <span class="delete">53</span></td><td> </td><td class="rblock">   12. References . . . . . . . . . . . . . . . . . . . . . . . . . . <span class="insert">54</span></td><td class="lineno" valign="top"></td></tr>
205      <tr><td class="lineno" valign="top"></td><td class="lblock">     12.1. Normative References . . . . . . . . . . . . . . . . . . . <span class="delete">53</span></td><td> </td><td class="rblock">     12.1. Normative References . . . . . . . . . . . . . . . . . . . <span class="insert">54</span></td><td class="lineno" valign="top"></td></tr>
206      <tr><td class="lineno" valign="top"></td><td class="lblock">     12.2. Informative References . . . . . . . . . . . . . . . . . . <span class="delete">54</span></td><td> </td><td class="rblock">     12.2. Informative References . . . . . . . . . . . . . . . . . . <span class="insert">55</span></td><td class="lineno" valign="top"></td></tr>
207      <tr><td class="lineno" valign="top"></td><td class="lblock">   Appendix A.  Tolerant Applications . . . . . . . . . . . . . . . . <span class="delete">56</span></td><td> </td><td class="rblock">   Appendix A.  Tolerant Applications . . . . . . . . . . . . . . . . <span class="insert">57</span></td><td class="lineno" valign="top"></td></tr>
208      <tr><td class="lineno" valign="top"></td><td class="lblock">   Appendix B.  Compatibility with Previous Versions  . . . . . . . . <span class="delete">57</span></td><td> </td><td class="rblock">   Appendix B.  Compatibility with Previous Versions  . . . . . . . . <span class="insert">58</span></td><td class="lineno" valign="top"></td></tr>
209      <tr><td class="lineno" valign="top"></td><td class="lblock">     B.1.  Changes from HTTP/1.0  . . . . . . . . . . . . . . . . . . <span class="delete">58</span></td><td> </td><td class="rblock">     B.1.  Changes from HTTP/1.0  . . . . . . . . . . . . . . . . . . <span class="insert">59</span></td><td class="lineno" valign="top"></td></tr>
210      <tr><td class="lineno" valign="top"></td><td class="left">       B.1.1.  Changes to Simplify Multi-homed Web Servers and</td><td> </td><td class="right">       B.1.1.  Changes to Simplify Multi-homed Web Servers and</td><td class="lineno" valign="top"></td></tr>
211      <tr><td><a name="diff0018" /></td></tr>
212      <tr><td class="lineno" valign="top"></td><td class="lblock">               Conserve IP Addresses  . . . . . . . . . . . . . . . . 5<span class="delete">8</span></td><td> </td><td class="rblock">               Conserve IP Addresses  . . . . . . . . . . . . . . . . 5<span class="insert">9</span></td><td class="lineno" valign="top"></td></tr>
213      <tr><td class="lineno" valign="top"></td><td class="left">     B.2.  Compatibility with HTTP/1.0 Persistent Connections . . . . 59</td><td> </td><td class="right">     B.2.  Compatibility with HTTP/1.0 Persistent Connections . . . . 59</td><td class="lineno" valign="top"></td></tr>
214      <tr><td><a name="diff0019" /></td></tr>
215      <tr><td class="lineno" valign="top"></td><td class="lblock">     B.3.  Changes from RFC 2068  . . . . . . . . . . . . . . . . . . <span class="delete">59</span></td><td> </td><td class="rblock">     B.3.  Changes from RFC 2068  . . . . . . . . . . . . . . . . . . <span class="insert">60</span></td><td class="lineno" valign="top"></td></tr>
216      <tr><td class="lineno" valign="top"></td><td class="lblock">     B.4.  Changes from RFC 2616  . . . . . . . . . . . . . . . . . . <span class="delete">60</span></td><td> </td><td class="rblock">     B.4.  Changes from RFC 2616  . . . . . . . . . . . . . . . . . . <span class="insert">61</span></td><td class="lineno" valign="top"></td></tr>
217      <tr><td class="lineno" valign="top"></td><td class="lblock">   Appendix C.  Terminology . . . . . . . . . . . . . . . . . . . . . <span class="delete">60</span></td><td> </td><td class="rblock">   Appendix C.  Terminology . . . . . . . . . . . . . . . . . . . . . <span class="insert">61</span></td><td class="lineno" valign="top"></td></tr>
218      <tr><td class="lineno" valign="top"></td><td class="left">   Appendix D.  Collected ABNF  . . . . . . . . . . . . . . . . . . . 64</td><td> </td><td class="right">   Appendix D.  Collected ABNF  . . . . . . . . . . . . . . . . . . . 64</td><td class="lineno" valign="top"></td></tr>
219      <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>
220      <tr><td><a name="diff0020" /></td></tr>
221      <tr><td class="lineno" valign="top"></td><td class="lblock">                publication)  . . . . . . . . . . . . . . . . . . . . <span class="delete">68</span></td><td> </td><td class="rblock">                publication)  . . . . . . . . . . . . . . . . . . . . <span class="insert">69</span></td><td class="lineno" valign="top"></td></tr>
222      <tr><td class="lineno" valign="top"></td><td class="lblock">     E.1.  Since RFC2616  . . . . . . . . . . . . . . . . . . . . . . <span class="delete">68</span></td><td> </td><td class="rblock">     E.1.  Since RFC2616  . . . . . . . . . . . . . . . . . . . . . . <span class="insert">69</span></td><td class="lineno" valign="top"></td></tr>
223      <tr><td class="lineno" valign="top"></td><td class="lblock">     E.2.  Since draft-ietf-httpbis-p1-messaging-00 . . . . . . . . . <span class="delete">68</span></td><td> </td><td class="rblock">     E.2.  Since draft-ietf-httpbis-p1-messaging-00 . . . . . . . . . <span class="insert">69</span></td><td class="lineno" valign="top"></td></tr>
224      <tr><td class="lineno" valign="top"></td><td class="left">     E.3.  Since draft-ietf-httpbis-p1-messaging-01 . . . . . . . . . 70</td><td> </td><td class="right">     E.3.  Since draft-ietf-httpbis-p1-messaging-01 . . . . . . . . . 70</td><td class="lineno" valign="top"></td></tr>
225      <tr><td class="lineno" valign="top"></td><td class="left">     E.4.  Since draft-ietf-httpbis-p1-messaging-02 . . . . . . . . . 71</td><td> </td><td class="right">     E.4.  Since draft-ietf-httpbis-p1-messaging-02 . . . . . . . . . 71</td><td class="lineno" valign="top"></td></tr>
226      <tr><td><a name="diff0021" /></td></tr>
227      <tr><td class="lineno" valign="top"></td><td class="lblock">     E.5.  Since draft-ietf-httpbis-p1-messaging-03 . . . . . . . . . 7<span class="delete">1</span></td><td> </td><td class="rblock">     E.5.  Since draft-ietf-httpbis-p1-messaging-03 . . . . . . . . . 7<span class="insert">2</span></td><td class="lineno" valign="top"></td></tr>
228      <tr><td class="lineno" valign="top"></td><td class="left">     E.6.  Since draft-ietf-httpbis-p1-messaging-04 . . . . . . . . . 72</td><td> </td><td class="right">     E.6.  Since draft-ietf-httpbis-p1-messaging-04 . . . . . . . . . 72</td><td class="lineno" valign="top"></td></tr>
229      <tr><td><a name="diff0022" /></td></tr>
230      <tr><td class="lineno" valign="top"></td><td class="lblock">     E.7.  Since draft-ietf-httpbis-p1-messaging-05 . . . . . . . . . <span class="delete">72</span></td><td> </td><td class="rblock">     E.7.  Since draft-ietf-httpbis-p1-messaging-05 . . . . . . . . . <span class="insert">73</span></td><td class="lineno" valign="top"></td></tr>
231      <tr><td class="lineno" valign="top"></td><td class="lblock">   Index  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . <span class="delete">73</span></td><td> </td><td class="rblock"><span class="insert">     E.8.  Since draft-ietf-httpbis-p1-messaging-06 . . . . . . . . . 74</span></td><td class="lineno" valign="top"></td></tr>
232      <tr><td class="lineno" valign="top"></td><td class="lblock">   Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . . <span class="delete">77</span></td><td> </td><td class="rblock">   Index  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . <span class="insert">74</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">   Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . . <span class="insert">78</span></td><td class="lineno" valign="top"></td></tr>
234      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
235      <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>
236      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
237      <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>
238      <tr><td class="lineno" valign="top"></td><td class="left">   request/response protocol that uses extensible semantics and MIME-</td><td> </td><td class="right">   request/response protocol that uses extensible semantics and MIME-</td><td class="lineno" valign="top"></td></tr>
239      <tr><td class="lineno" valign="top"></td><td class="left">   like message payloads for flexible interaction with network-based</td><td> </td><td class="right">   like message payloads for flexible interaction with network-based</td><td class="lineno" valign="top"></td></tr>
240      <tr><td class="lineno" valign="top"></td><td class="left">   hypertext information systems.  HTTP relies upon the Uniform Resource</td><td> </td><td class="right">   hypertext information systems.  HTTP relies upon the Uniform Resource</td><td class="lineno" valign="top"></td></tr>
241      <tr><td class="lineno" valign="top"></td><td class="left">   Identifier (URI) standard [RFC3986] to indicate request targets and</td><td> </td><td class="right">   Identifier (URI) standard [RFC3986] to indicate request targets and</td><td class="lineno" valign="top"></td></tr>
242      <tr><td class="lineno" valign="top"></td><td class="left">   relationships between resources.  Messages are passed in a format</td><td> </td><td class="right">   relationships between resources.  Messages are passed in a format</td><td class="lineno" valign="top"></td></tr>
243      <tr><td class="lineno" valign="top"></td><td class="left">   similar to that used by Internet mail [RFC5322] and the Multipurpose</td><td> </td><td class="right">   similar to that used by Internet mail [RFC5322] and the Multipurpose</td><td class="lineno" valign="top"></td></tr>
244      <tr><td class="lineno"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno"></td></tr>
245      <tr bgcolor="gray" ><td></td><th><a name="part-l5" /><small>skipping to change at</small><em> page 9, line 29</em></th><th> </th><th><a name="part-r5" /><small>skipping to change at</small><em> page 9, line 29</em></th><td></td></tr>
246      <tr><td class="lineno" valign="top"></td><td class="left">     tchar          = "!" / "#" / "$" / "%" / "&amp;" / "'" / "*"</td><td> </td><td class="right">     tchar          = "!" / "#" / "$" / "%" / "&amp;" / "'" / "*"</td><td class="lineno" valign="top"></td></tr>
247      <tr><td class="lineno" valign="top"></td><td class="left">                    / "+" / "-" / "." / "^" / "_" / "`" / "|" / "~"</td><td> </td><td class="right">                    / "+" / "-" / "." / "^" / "_" / "`" / "|" / "~"</td><td class="lineno" valign="top"></td></tr>
248      <tr><td class="lineno" valign="top"></td><td class="left">                    / DIGIT / ALPHA</td><td> </td><td class="right">                    / DIGIT / ALPHA</td><td class="lineno" valign="top"></td></tr>
249      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
250      <tr><td class="lineno" valign="top"></td><td class="left">     token          = 1*tchar</td><td> </td><td class="right">     token          = 1*tchar</td><td class="lineno" valign="top"></td></tr>
251      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
252      <tr><td class="lineno" valign="top"></td><td class="left">   A string of text is parsed as a single word if it is quoted using</td><td> </td><td class="right">   A string of text is parsed as a single word if it is quoted using</td><td class="lineno" valign="top"></td></tr>
253      <tr><td class="lineno" valign="top"></td><td class="left">   double-quote marks.</td><td> </td><td class="right">   double-quote marks.</td><td class="lineno" valign="top"></td></tr>
254      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
255      <tr><td class="lineno" valign="top"></td><td class="left">     quoted-string  = DQUOTE *( qdtext / quoted-pair ) DQUOTE</td><td> </td><td class="right">     quoted-string  = DQUOTE *( qdtext / quoted-pair ) DQUOTE</td><td class="lineno" valign="top"></td></tr>
256      <tr><td><a name="diff0023" /></td></tr>
257      <tr><td class="lineno" valign="top"></td><td class="lblock">     qdtext         = <span class="delete">*(</span> OWS / %x21 / %x23-5B / %x5D-7E / obs-text <span class="delete">)</span></td><td> </td><td class="rblock">     qdtext         = OWS / %x21 / %x23-5B / %x5D-7E / obs-text</td><td class="lineno" valign="top"></td></tr>
258      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock">                    <span class="insert">; OWS / &lt;VCHAR except DQUOTE and "\"&gt; / obs-text</span></td><td class="lineno" valign="top"></td></tr>
259      <tr><td class="lineno" valign="top"></td><td class="left">     obs-text       = %x80-FF</td><td> </td><td class="right">     obs-text       = %x80-FF</td><td class="lineno" valign="top"></td></tr>
260      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
261      <tr><td class="lineno" valign="top"></td><td class="left">   The backslash character ("\") MAY be used as a single-character</td><td> </td><td class="right">   The backslash character ("\") MAY be used as a single-character</td><td class="lineno" valign="top"></td></tr>
262      <tr><td class="lineno" valign="top"></td><td class="left">   quoting mechanism only within quoted-string and comment constructs.</td><td> </td><td class="right">   quoting mechanism only within quoted-string and comment constructs.</td><td class="lineno" valign="top"></td></tr>
263      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
264      <tr><td class="lineno" valign="top"></td><td class="left">     quoted-text    = %x01-09 /</td><td> </td><td class="right">     quoted-text    = %x01-09 /</td><td class="lineno" valign="top"></td></tr>
265      <tr><td class="lineno" valign="top"></td><td class="left">                      %x0B-0C /</td><td> </td><td class="right">                      %x0B-0C /</td><td class="lineno" valign="top"></td></tr>
266      <tr><td class="lineno" valign="top"></td><td class="left">                      %x0E-FF ; Characters excluding NUL, CR and LF</td><td> </td><td class="right">                      %x0E-FF ; Characters excluding NUL, CR and LF</td><td class="lineno" valign="top"></td></tr>
267      <tr><td class="lineno" valign="top"></td><td class="left">     quoted-pair    = "\" quoted-text</td><td> </td><td class="right">     quoted-pair    = "\" quoted-text</td><td class="lineno" valign="top"></td></tr>
268      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
269      <tr><td class="lineno"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno"></td></tr>
270      <tr bgcolor="gray" ><td></td><th><a name="part-l6" /><small>skipping to change at</small><em> page 15, line 41</em></th><th> </th><th><a name="part-r6" /><small>skipping to change at</small><em> page 15, line 41</em></th><td></td></tr>
271      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
272      <tr><td class="lineno" valign="top"></td><td class="left">   Due to interoperability problems with HTTP/1.0 proxies discovered</td><td> </td><td class="right">   Due to interoperability problems with HTTP/1.0 proxies discovered</td><td class="lineno" valign="top"></td></tr>
273      <tr><td class="lineno" valign="top"></td><td class="left">   since the publication of [RFC2068], caching proxies MUST, gateways</td><td> </td><td class="right">   since the publication of [RFC2068], caching proxies MUST, gateways</td><td class="lineno" valign="top"></td></tr>
274      <tr><td class="lineno" valign="top"></td><td class="left">   MAY, and tunnels MUST NOT upgrade the request to the highest version</td><td> </td><td class="right">   MAY, and tunnels MUST NOT upgrade the request to the highest version</td><td class="lineno" valign="top"></td></tr>
275      <tr><td class="lineno" valign="top"></td><td class="left">   they support.  The proxy/gateway's response to that request MUST be</td><td> </td><td class="right">   they support.  The proxy/gateway's response to that request MUST be</td><td class="lineno" valign="top"></td></tr>
276      <tr><td class="lineno" valign="top"></td><td class="left">   in the same major version as the request.</td><td> </td><td class="right">   in the same major version as the request.</td><td class="lineno" valign="top"></td></tr>
277      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
278      <tr><td class="lineno" valign="top"></td><td class="left">      Note: Converting between versions of HTTP may involve modification</td><td> </td><td class="right">      Note: Converting between versions of HTTP may involve modification</td><td class="lineno" valign="top"></td></tr>
279      <tr><td class="lineno" valign="top"></td><td class="left">      of header fields required or forbidden by the versions involved.</td><td> </td><td class="right">      of header fields required or forbidden by the versions involved.</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><a name="diff0024" /></td></tr>
282      <tr><td class="lineno" valign="top"></td><td class="lblock">3.2.  Date/Time <span class="delete">Formats</span></td><td> </td><td class="rblock">3.2.  Date/Time <span class="insert">Formats:</span> Full Date</td><td class="lineno" valign="top"></td></tr>
283      <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>
284      <tr><td class="lineno" valign="top"></td><td class="lblock"><span class="delete">3.2.1.</span>  Full Date</td><td> </td><td class="rblock"></td><td class="lineno" valign="top"></td></tr>
285      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
286      <tr><td class="lineno" valign="top"></td><td class="left">   HTTP applications have historically allowed three different formats</td><td> </td><td class="right">   HTTP applications have historically allowed three different formats</td><td class="lineno" valign="top"></td></tr>
287      <tr><td class="lineno" valign="top"></td><td class="left">   for the representation of date/time stamps:</td><td> </td><td class="right">   for the representation of date/time stamps:</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">     Sun, 06 Nov 1994 08:49:37 GMT  ; RFC 1123</td><td> </td><td class="right">     Sun, 06 Nov 1994 08:49:37 GMT  ; RFC 1123</td><td class="lineno" valign="top"></td></tr>
290      <tr><td class="lineno" valign="top"></td><td class="left">     Sunday, 06-Nov-94 08:49:37 GMT ; obsolete RFC 850 format</td><td> </td><td class="right">     Sunday, 06-Nov-94 08:49:37 GMT ; obsolete RFC 850 format</td><td class="lineno" valign="top"></td></tr>
291      <tr><td class="lineno" valign="top"></td><td class="left">     Sun Nov  6 08:49:37 1994       ; ANSI C's asctime() format</td><td> </td><td class="right">     Sun Nov  6 08:49:37 1994       ; ANSI C's asctime() format</td><td class="lineno" valign="top"></td></tr>
292      <tr><td><a name="diff0025" /></td></tr>
293      <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>
294      <tr><td class="lineno" valign="top"></td><td class="left">   The first format is preferred as an Internet standard and represents</td><td> </td><td class="right">   The first format is preferred as an Internet standard and represents</td><td class="lineno" valign="top"></td></tr>
295      <tr><td class="lineno" valign="top"></td><td class="left">   a fixed-length subset of that defined by [RFC1123].  The other</td><td> </td><td class="right">   a fixed-length subset of that defined by [RFC1123].  The other</td><td class="lineno" valign="top"></td></tr>
296      <tr><td class="lineno" valign="top"></td><td class="left">   formats are described here only for compatibility with obsolete</td><td> </td><td class="right">   formats are described here only for compatibility with obsolete</td><td class="lineno" valign="top"></td></tr>
297      <tr><td class="lineno" valign="top"></td><td class="left">   implementations.  HTTP/1.1 clients and servers that parse the date</td><td> </td><td class="right">   implementations.  HTTP/1.1 clients and servers that parse the date</td><td class="lineno" valign="top"></td></tr>
298      <tr><td class="lineno" valign="top"></td><td class="left">   value MUST accept all three formats (for compatibility with</td><td> </td><td class="right">   value MUST accept all three formats (for compatibility with</td><td class="lineno" valign="top"></td></tr>
299      <tr><td class="lineno" valign="top"></td><td class="left">   HTTP/1.0), though they MUST only generate the RFC 1123 format for</td><td> </td><td class="right">   HTTP/1.0), though they MUST only generate the RFC 1123 format for</td><td class="lineno" valign="top"></td></tr>
300      <tr><td class="lineno" valign="top"></td><td class="left">   representing HTTP-date values in header fields.  See Appendix A for</td><td> </td><td class="right">   representing HTTP-date values in header fields.  See Appendix A for</td><td class="lineno" valign="top"></td></tr>
301      <tr><td class="lineno" valign="top"></td><td class="left">   further information.</td><td> </td><td class="right">   further information.</td><td class="lineno" valign="top"></td></tr>
302      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
303      <tr><td><a name="diff0026" /></td></tr>
304      <tr><td class="lineno" valign="top"></td><td class="lblock">      <span class="delete">Note: Recipients of date values are encouraged to be robust in</span></td><td> </td><td class="rblock"></td><td class="lineno" valign="top"></td></tr>
305      <tr><td class="lineno" valign="top"></td><td class="lblock"><span class="delete">      accepting date values that may have been sent by non-HTTP</span></td><td> </td><td class="rblock"></td><td class="lineno" valign="top"></td></tr>
306      <tr><td class="lineno" valign="top"></td><td class="lblock"><span class="delete">      applications, as is sometimes the case when retrieving or posting</span></td><td> </td><td class="rblock"></td><td class="lineno" valign="top"></td></tr>
307      <tr><td class="lineno" valign="top"></td><td class="lblock"><span class="delete">      messages via proxies/gateways to SMTP or NNTP.</span></td><td> </td><td class="rblock"></td><td class="lineno" valign="top"></td></tr>
308      <tr><td class="lineno" valign="top"></td><td class="lblock">                                                                         </td><td> </td><td class="rblock"></td><td class="lineno" valign="top"></td></tr>
309      <tr><td class="lineno" valign="top"></td><td class="left">   All HTTP date/time stamps MUST be represented in Greenwich Mean Time</td><td> </td><td class="right">   All HTTP date/time stamps MUST be represented in Greenwich Mean Time</td><td class="lineno" valign="top"></td></tr>
310      <tr><td class="lineno" valign="top"></td><td class="left">   (GMT), without exception.  For the purposes of HTTP, GMT is exactly</td><td> </td><td class="right">   (GMT), without exception.  For the purposes of HTTP, GMT is exactly</td><td class="lineno" valign="top"></td></tr>
311      <tr><td class="lineno" valign="top"></td><td class="left">   equal to UTC (Coordinated Universal Time).  This is indicated in the</td><td> </td><td class="right">   equal to UTC (Coordinated Universal Time).  This is indicated in the</td><td class="lineno" valign="top"></td></tr>
312      <tr><td class="lineno" valign="top"></td><td class="left">   first two formats by the inclusion of "GMT" as the three-letter</td><td> </td><td class="right">   first two formats by the inclusion of "GMT" as the three-letter</td><td class="lineno" valign="top"></td></tr>
313      <tr><td class="lineno" valign="top"></td><td class="left">   abbreviation for time zone, and MUST be assumed when reading the</td><td> </td><td class="right">   abbreviation for time zone, and MUST be assumed when reading the</td><td class="lineno" valign="top"></td></tr>
314      <tr><td class="lineno" valign="top"></td><td class="left">   asctime format.  HTTP-date is case sensitive and MUST NOT include</td><td> </td><td class="right">   asctime format.  HTTP-date is case sensitive and MUST NOT include</td><td class="lineno" valign="top"></td></tr>
315      <tr><td class="lineno" valign="top"></td><td class="left">   additional whitespace beyond that specifically included as SP in the</td><td> </td><td class="right">   additional whitespace beyond that specifically included as SP in the</td><td class="lineno" valign="top"></td></tr>
316      <tr><td class="lineno" valign="top"></td><td class="left">   grammar.</td><td> </td><td class="right">   grammar.</td><td class="lineno" valign="top"></td></tr>
317      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
318      <tr><td><a name="diff0027" /></td></tr>
319      <tr><td class="lineno" valign="top"></td><td class="lblock">     HTTP-date    = rfc1123-date / <span class="delete">obsolete-date</span></td><td> </td><td class="rblock">     HTTP-date    = rfc1123-date / <span class="insert">obs-date</span></td><td class="lineno" valign="top"></td></tr>
320      <tr><td class="lineno" valign="top"></td><td class="lblock"><span class="delete">     obsolete-date = rfc850-date / asctime-date</span></td><td> </td><td class="rblock"><span class="insert"></span></td><td class="lineno" valign="top"></td></tr>
321      <tr><td class="lineno" valign="top"></td><td class="lblock">     rfc1123-date = <span class="delete">wkday</span> "," SP date1 SP <span class="delete">time SP GMT</span></td><td> </td><td class="rblock"><span class="insert">   Preferred format:</span></td><td class="lineno" valign="top"></td></tr>
322      <tr><td class="lineno" valign="top"></td><td class="lblock"><span class="delete">     rfc850-date  = weekday "," SP date2 SP time</span> SP GMT</td><td> </td><td class="rblock">                                                                         </td><td class="lineno" valign="top"></td></tr>
323      <tr><td class="lineno" valign="top"></td><td class="lblock">     <span class="delete">asctime-date</span> = <span class="delete">wkday SP date3 SP time SP 4DIGIT</span></td><td> </td><td class="rblock">     rfc1123-date = <span class="insert">day-name</span> "," SP date1 SP <span class="insert">time-of-day</span> SP GMT</td><td class="lineno" valign="top"></td></tr>
324      <tr><td class="lineno" valign="top"></td><td class="lblock">     date1        = <span class="delete">2DIGIT</span> SP month SP <span class="delete">4DIGIT</span></td><td> </td><td class="rblock">                                                                         </td><td class="lineno" valign="top"></td></tr>
325      <tr><td class="lineno" valign="top"></td><td class="lblock"><span class="delete">                    ; day month</span> year <span class="delete">(e.g., 02 Jun 1982)</span></td><td> </td><td class="rblock">     <span class="insert">day-name</span>     = <span class="insert">%x4D.6F.6E ; "Mon", case-sensitive</span></td><td class="lineno" valign="top"></td></tr>
326      <tr><td class="lineno" valign="top"></td><td class="lblock"><span class="delete">     date2        = 2DIGIT "-" month "-" 2DIGIT</span></td><td> </td><td class="rblock"><span class="insert">                  / %x54.75.65 ; "Tue", case-sensitive</span></td><td class="lineno" valign="top"></td></tr>
327      <tr><td class="lineno" valign="top"></td><td class="lblock"><span class="delete">                    ; day-month-year (e.g., 02-Jun-82)</span></td><td> </td><td class="rblock"><span class="insert">                  / %x57.65.64 ; "Wed", case-sensitive</span></td><td class="lineno" valign="top"></td></tr>
328      <tr><td class="lineno" valign="top"></td><td class="lblock"><span class="delete">     date3</span>        = <span class="delete">month SP (</span> 2DIGIT <span class="delete">/ ( SP 1DIGIT ))</span></td><td> </td><td class="rblock"><span class="insert">                  / %x54.68.75 ; "Thu", case-sensitive</span></td><td class="lineno" valign="top"></td></tr>
329      <tr><td class="lineno" valign="top"></td><td class="lblock"><span class="delete">                    ;</span> month <span class="delete">day (e.g., Jun  2)</span></td><td> </td><td class="rblock"><span class="insert">                  / %x46.72.69 ; "Fri", case-sensitive</span></td><td class="lineno" valign="top"></td></tr>
330      <tr><td class="lineno" valign="top"></td><td class="lblock"><span class="delete">     time</span>         = <span class="delete">2DIGIT ":" 2DIGIT ":" 2DIGIT</span></td><td> </td><td class="rblock"><span class="insert">                  / %x53.61.74 ; "Sat", case-sensitive</span></td><td class="lineno" valign="top"></td></tr>
331      <tr><td class="lineno" valign="top"></td><td class="lblock">                    ; <span class="delete">00:00:00 - 23:59:59</span></td><td> </td><td class="rblock"><span class="insert">                  / %x53.75.6E ; "Sun", case-sensitive</span></td><td class="lineno" valign="top"></td></tr>
332      <tr><td class="lineno" valign="top"></td><td class="lblock"><span class="delete">     wkday        = s-Mon</span> / <span class="delete">s-Tue / s-Wed</span></td><td> </td><td class="rblock">                                                                         </td><td class="lineno" valign="top"></td></tr>
333      <tr><td class="lineno" valign="top"></td><td class="lblock">                  / <span class="delete">s-Thu</span> / <span class="delete">s-Fri</span> / <span class="delete">s-Sat</span> / <span class="delete">s-Sun</span></td><td> </td><td class="rblock">     date1        = <span class="insert">day</span> SP month SP year</td><td class="lineno" valign="top"></td></tr>
334      <tr><td class="lineno" valign="top"></td><td class="lblock"><span class="delete">     weekday      = l-Mon</span> / <span class="delete">l-Tue</span> / <span class="delete">l-Wed</span></td><td> </td><td class="rblock">     <span class="insert">day</span>          = 2DIGIT</td><td class="lineno" valign="top"></td></tr>
335      <tr><td class="lineno" valign="top"></td><td class="lblock">                  / <span class="delete">l-Thu</span> / <span class="delete">l-Fri</span> / <span class="delete">l-Sat</span> / <span class="delete">l-Sun</span></td><td> </td><td class="rblock">     month        = <span class="insert">%x4A.61.6E</span> ; <span class="insert">"Jan", case-sensitive</span></td><td class="lineno" valign="top"></td></tr>
336      <tr><td class="lineno" valign="top"></td><td class="lblock"><span class="delete">     month</span>        = <span class="delete">s-Jan / s-Feb / s-Mar / s-Apr</span></td><td> </td><td class="rblock">                  / <span class="insert">%x46.65.62 ; "Feb", case-sensitive</span></td><td class="lineno" valign="top"></td></tr>
337      <tr><td class="lineno" valign="top"></td><td class="lblock"><span class="delete">                  / s-May / s-Jun / s-Jul / s-Aug</span></td><td> </td><td class="rblock">                  / <span class="insert">%x4D.61.72 ; "Mar", case-sensitive</span></td><td class="lineno" valign="top"></td></tr>
338      <tr><td class="lineno" valign="top"></td><td class="lblock"><span class="delete">                  / s-Sep / s-Oct / s-Nov / s-Dec</span></td><td> </td><td class="rblock">                  / <span class="insert">%x41.70.72 ; "Apr", case-sensitive</span></td><td class="lineno" valign="top"></td></tr>
339      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock">                  / <span class="insert">%x4D.61.79 ; "May", case-sensitive</span></td><td class="lineno" valign="top"></td></tr>
340      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock">                  / <span class="insert">%x4A.75.6E ; "Jun", case-sensitive</span></td><td class="lineno" valign="top"></td></tr>
341      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock">                  / <span class="insert">%x4A.75.6C ; "Jul", case-sensitive</span></td><td class="lineno" valign="top"></td></tr>
342      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock">                  / <span class="insert">%x41.75.67 ; "Aug", case-sensitive</span></td><td class="lineno" valign="top"></td></tr>
343      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock">                  / <span class="insert">%x53.65.70 ; "Sep", case-sensitive</span></td><td class="lineno" valign="top"></td></tr>
344      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock">                  / <span class="insert">%x4F.63.74 ; "Oct", case-sensitive</span></td><td class="lineno" valign="top"></td></tr>
345      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock">                  / <span class="insert">%x4E.6F.76 ; "Nov", case-sensitive</span></td><td class="lineno" valign="top"></td></tr>
346      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock">                  / <span class="insert">%x44.65.63 ; "Dec", case-sensitive</span></td><td class="lineno" valign="top"></td></tr>
347      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">     year</span>         = <span class="insert">4DIGIT</span></td><td class="lineno" valign="top"></td></tr>
348      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
349      <tr><td class="lineno" valign="top"></td><td class="left">     GMT   = %x47.4D.54 ; "GMT", case-sensitive</td><td> </td><td class="right">     GMT   = %x47.4D.54 ; "GMT", case-sensitive</td><td class="lineno" valign="top"></td></tr>
350      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
351      <tr><td><a name="diff0028" /></td></tr>
352      <tr><td class="lineno" valign="top"></td><td class="lblock">     <span class="delete">s-Mon</span> = <span class="delete">%x4D.6F.6E ; "Mon", case-sensitive</span></td><td> </td><td class="rblock">     <span class="insert">time-of-day</span>  = <span class="insert">hour ":" minute ":" second</span></td><td class="lineno" valign="top"></td></tr>
353      <tr><td class="lineno" valign="top"></td><td class="lblock"><span class="delete">     s-Tue = %x54.75.65 ; "Tue", case-sensitive</span></td><td> </td><td class="rblock"><span class="insert">                    ; 00:00:00 - 23:59:59</span></td><td class="lineno" valign="top"></td></tr>
354      <tr><td class="lineno" valign="top"></td><td class="lblock"><span class="delete">     s-Wed = %x57.65.64 ; "Wed", case-sensitive</span></td><td> </td><td class="rblock"></td><td class="lineno" valign="top"></td></tr>
355      <tr><td class="lineno" valign="top"></td><td class="lblock"><span class="delete">     s-Thu = %x54.68.75 ; "Thu", case-sensitive</span></td><td> </td><td class="rblock"></td><td class="lineno" valign="top"></td></tr>
356      <tr><td class="lineno" valign="top"></td><td class="lblock"><span class="delete">     s-Fri = %x46.72.69 ; "Fri", case-sensitive</span></td><td> </td><td class="rblock"></td><td class="lineno" valign="top"></td></tr>
357      <tr><td class="lineno" valign="top"></td><td class="lblock"><span class="delete">     s-Sat = %x53.61.74 ; "Sat", case-sensitive</span></td><td> </td><td class="rblock"></td><td class="lineno" valign="top"></td></tr>
358      <tr><td class="lineno" valign="top"></td><td class="lblock"><span class="delete">     s-Sun = %x53.75.6E ; "Sun", case-sensitive</span></td><td> </td><td class="rblock"></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><a name="diff0029" /></td></tr>
361      <tr><td class="lineno" valign="top"></td><td class="lblock">     <span class="delete">l-Mon</span> = <span class="delete">%x4D.6F.6E.64.61.79          ; "Monday", case-sensitive</span></td><td> </td><td class="rblock">     <span class="insert">hour</span>         = <span class="insert">2DIGIT</span></td><td class="lineno" valign="top"></td></tr>
362      <tr><td class="lineno" valign="top"></td><td class="lblock"><span class="delete">     l-Tue</span> = <span class="delete">%x54.75.65.73.64.61.79       ; "Tuesday", case-sensitive</span></td><td> </td><td class="rblock"><span class="insert">     minute</span>       = <span class="insert">2DIGIT</span></td><td class="lineno" valign="top"></td></tr>
363      <tr><td class="lineno" valign="top"></td><td class="lblock"><span class="delete">     l-Wed</span> = <span class="delete">%x57.65.64.6E.65.73.64.61.79 ; "Wednesday", case-sensitive</span></td><td> </td><td class="rblock"><span class="insert">     second</span>       = <span class="insert">2DIGIT</span></td><td class="lineno" valign="top"></td></tr>
364      <tr><td class="lineno" valign="top"></td><td class="lblock"><span class="delete">     l-Thu = %x54.68.75.72.73.64.61.79    ; "Thursday", case-sensitive</span></td><td> </td><td class="rblock"></td><td class="lineno" valign="top"></td></tr>
365      <tr><td class="lineno" valign="top"></td><td class="lblock"><span class="delete">     l-Fri = %x46.72.69.64.61.79          ; "Friday", case-sensitive</span></td><td> </td><td class="rblock"></td><td class="lineno" valign="top"></td></tr>
366      <tr><td class="lineno" valign="top"></td><td class="lblock"><span class="delete">     l-Sat = %x53.61.74.75.72.64.61.79    ; "Saturday", case-sensitive</span></td><td> </td><td class="rblock"></td><td class="lineno" valign="top"></td></tr>
367      <tr><td class="lineno" valign="top"></td><td class="lblock"><span class="delete">     l-Sun = %x53.75.6E.64.61.79          ; "Sunday", case-sensitive</span></td><td> </td><td class="rblock"></td><td class="lineno" valign="top"></td></tr>
368      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
369      <tr><td><a name="diff0030" /></td></tr>
370      <tr><td class="lineno" valign="top"></td><td class="lblock">     <span class="delete">s-Jan = %x4A.61.6E ; "Jan", case-sensitive</span></td><td> </td><td class="rblock">   <span class="insert">The semantics of day-name, day, month, year, and time-of-day are the</span></td><td class="lineno" valign="top"></td></tr>
371      <tr><td class="lineno" valign="top"></td><td class="lblock"><span class="delete">     s-Feb = %x46.65.62 ; "Feb", case-sensitive</span></td><td> </td><td class="rblock"><span class="insert">   same as those defined for the RFC 5322 constructs with the</span></td><td class="lineno" valign="top"></td></tr>
372      <tr><td class="lineno" valign="top"></td><td class="lblock"><span class="delete">     s-Mar = %x4D.61.72 ; "Mar", case-sensitive</span></td><td> </td><td class="rblock"><span class="insert">   corresponding name ([RFC5322], Section 3.3).</span></td><td class="lineno" valign="top"></td></tr>
373      <tr><td class="lineno" valign="top"></td><td class="lblock"><span class="delete">     s-Apr = %x41.70.72 ; "Apr", case-sensitive</span></td><td> </td><td class="rblock"></td><td class="lineno" valign="top"></td></tr>
374      <tr><td class="lineno" valign="top"></td><td class="lblock"><span class="delete">     s-May = %x4D.61.79 ; "May", case-sensitive</span></td><td> </td><td class="rblock"></td><td class="lineno" valign="top"></td></tr>
375      <tr><td class="lineno" valign="top"></td><td class="lblock"><span class="delete">     s-Jun = %x4A.75.6E ; "Jun", case-sensitive</span></td><td> </td><td class="rblock"></td><td class="lineno" valign="top"></td></tr>
376      <tr><td class="lineno" valign="top"></td><td class="lblock"><span class="delete">     s-Jul = %x4A.75.6C ; "Jul", case-sensitive</span></td><td> </td><td class="rblock"></td><td class="lineno" valign="top"></td></tr>
377      <tr><td class="lineno" valign="top"></td><td class="lblock"><span class="delete">     s-Aug = %x41.75.67 ; "Aug", case-sensitive</span></td><td> </td><td class="rblock"></td><td class="lineno" valign="top"></td></tr>
378      <tr><td class="lineno" valign="top"></td><td class="lblock"><span class="delete">     s-Sep = %x53.65.70 ; "Sep", case-sensitive</span></td><td> </td><td class="rblock"></td><td class="lineno" valign="top"></td></tr>
379      <tr><td class="lineno" valign="top"></td><td class="lblock"><span class="delete">     s-Oct = %x4F.63.74 ; "Oct", case-sensitive</span></td><td> </td><td class="rblock"></td><td class="lineno" valign="top"></td></tr>
380      <tr><td class="lineno" valign="top"></td><td class="lblock"><span class="delete">     s-Nov = %x4E.6F.76 ; "Nov", case-sensitive</span></td><td> </td><td class="rblock"></td><td class="lineno" valign="top"></td></tr>
381      <tr><td class="lineno" valign="top"></td><td class="lblock"><span class="delete">     s-Dec = %x44.65.63 ; "Dec", case-sensitive</span></td><td> </td><td class="rblock"></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><a name="diff0031" /></td></tr>
384      <tr><td class="lineno" valign="top"></td><td class="lblock">   Note: HTTP requirements for the date/time stamp format apply only to</td><td> </td><td class="rblock">   <span class="insert">Obsolete formats:</span></td><td class="lineno" valign="top"></td></tr>
385      <tr><td class="lineno" valign="top"></td><td class="lblock">   their usage within the protocol stream.  Clients and servers are not</td><td> </td><td class="rblock"><span class="insert"></span></td><td class="lineno" valign="top"></td></tr>
386      <tr><td class="lineno" valign="top"></td><td class="lblock">   required to use these formats for user presentation, request logging,</td><td> </td><td class="rblock"><span class="insert">     obs-date     = rfc850-date / asctime-date</span></td><td class="lineno" valign="top"></td></tr>
387      <tr><td class="lineno" valign="top"></td><td class="lblock">   etc.</td><td> </td><td class="rblock"><span class="insert">     rfc850-date  = day-name-l "," SP date2 SP time-of-day SP GMT</span></td><td class="lineno" valign="top"></td></tr>
388      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">     date2        = day "-" month "-" 2DIGIT</span></td><td class="lineno" valign="top"></td></tr>
389      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">                    ; day-month-year (e.g., 02-Jun-82)</span></td><td class="lineno" valign="top"></td></tr>
390      <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>
391      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">     day-name-l   = %x4D.6F.6E.64.61.79 ; "Monday", case-sensitive</span></td><td class="lineno" valign="top"></td></tr>
392      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">            / %x54.75.65.73.64.61.79 ; "Tuesday", case-sensitive</span></td><td class="lineno" valign="top"></td></tr>
393      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">            / %x57.65.64.6E.65.73.64.61.79 ; "Wednesday", case-sensitive</span></td><td class="lineno" valign="top"></td></tr>
394      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">            / %x54.68.75.72.73.64.61.79 ; "Thursday", case-sensitive</span></td><td class="lineno" valign="top"></td></tr>
395      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">            / %x46.72.69.64.61.79 ; "Friday", case-sensitive</span></td><td class="lineno" valign="top"></td></tr>
396      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">            / %x53.61.74.75.72.64.61.79 ; "Saturday", case-sensitive</span></td><td class="lineno" valign="top"></td></tr>
397      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">            / %x53.75.6E.64.61.79 ; "Sunday", case-sensitive</span></td><td class="lineno" valign="top"></td></tr>
398      <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>
399      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">     asctime-date = day-name SP date3 SP time-of-day SP year</span></td><td class="lineno" valign="top"></td></tr>
400      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">     date3        = month SP ( 2DIGIT / ( SP 1DIGIT ))</span></td><td class="lineno" valign="top"></td></tr>
401      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">                    ; month day (e.g., Jun  2)</span></td><td class="lineno" valign="top"></td></tr>
402      <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>
403      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">      Note: Recipients of date values are encouraged to be robust in</span></td><td class="lineno" valign="top"></td></tr>
404      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">      accepting date values that may have been sent by non-HTTP</span></td><td class="lineno" valign="top"></td></tr>
405      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">      applications, as is sometimes the case when retrieving or posting</span></td><td class="lineno" valign="top"></td></tr>
406      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">      messages via proxies/gateways to SMTP or NNTP.</span></td><td class="lineno" valign="top"></td></tr>
407      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock">                                                                         </td><td class="lineno" valign="top"></td></tr>
408      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock">      Note: HTTP requirements for the date/time stamp format apply only</td><td class="lineno" valign="top"></td></tr>
409      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock">      to their usage within the protocol stream.  Clients and servers</td><td class="lineno" valign="top"></td></tr>
410      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock">      are not required to use these formats for user presentation,</td><td class="lineno" valign="top"></td></tr>
411      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock">      request logging, etc.</td><td class="lineno" valign="top"></td></tr>
412      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
413      <tr><td class="lineno" valign="top"></td><td class="left">3.3.  Transfer Codings</td><td> </td><td class="right">3.3.  Transfer Codings</td><td class="lineno" valign="top"></td></tr>
414      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
415      <tr><td class="lineno" valign="top"></td><td class="left">   Transfer-coding values are used to indicate an encoding</td><td> </td><td class="right">   Transfer-coding values are used to indicate an encoding</td><td class="lineno" valign="top"></td></tr>
416      <tr><td class="lineno" valign="top"></td><td class="left">   transformation that has been, can be, or may need to be applied to an</td><td> </td><td class="right">   transformation that has been, can be, or may need to be applied to an</td><td class="lineno" valign="top"></td></tr>
417      <tr><td class="lineno" valign="top"></td><td class="left">   entity-body in order to ensure "safe transport" through the network.</td><td> </td><td class="right">   entity-body in order to ensure "safe transport" through the network.</td><td class="lineno" valign="top"></td></tr>
418      <tr><td class="lineno" valign="top"></td><td class="left">   This differs from a content coding in that the transfer-coding is a</td><td> </td><td class="right">   This differs from a content coding in that the transfer-coding is a</td><td class="lineno" valign="top"></td></tr>
419      <tr><td class="lineno" valign="top"></td><td class="left">   property of the message, not of the original entity.</td><td> </td><td class="right">   property of the message, not of the original entity.</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">     transfer-coding         = "chunked" / transfer-extension</td><td> </td><td class="right">     transfer-coding         = "chunked" / transfer-extension</td><td class="lineno" valign="top"></td></tr>
422      <tr><td><a name="diff0032" /></td></tr>
423      <tr><td class="lineno" valign="top"></td><td class="lblock">     transfer-extension      = token *( OWS ";" OWS parameter )</td><td> </td><td class="rblock">     transfer-extension      = token *( OWS ";" OWS <span class="insert">transfer-</span>parameter )</td><td class="lineno" valign="top"></td></tr>
424      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
425      <tr><td class="lineno" valign="top"></td><td class="left">   Parameters are in the form of attribute/value pairs.</td><td> </td><td class="right">   Parameters are in the form of attribute/value pairs.</td><td class="lineno" valign="top"></td></tr>
426      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
427      <tr><td><a name="diff0033" /></td></tr>
428      <tr><td class="lineno" valign="top"></td><td class="lblock">     <span class="delete">parameter         </span>      = attribute BWS "=" BWS value</td><td> </td><td class="rblock">     <span class="insert">transfer-parameter</span>      = attribute BWS "=" BWS value</td><td class="lineno" valign="top"></td></tr>
429      <tr><td class="lineno" valign="top"></td><td class="left">     attribute               = token</td><td> </td><td class="right">     attribute               = token</td><td class="lineno" valign="top"></td></tr>
430      <tr><td class="lineno" valign="top"></td><td class="left">     value                   = token / quoted-string</td><td> </td><td class="right">     value                   = token / quoted-string</td><td class="lineno" valign="top"></td></tr>
431      <tr><td><a name="diff0034" /></td></tr>
432      <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>
433      <tr><td class="lineno" valign="top"></td><td class="left">   All transfer-coding values are case-insensitive.  HTTP/1.1 uses</td><td> </td><td class="right">   All transfer-coding values are case-insensitive.  HTTP/1.1 uses</td><td class="lineno" valign="top"></td></tr>
434      <tr><td class="lineno" valign="top"></td><td class="left">   transfer-coding values in the TE header field (Section 8.5) and in</td><td> </td><td class="right">   transfer-coding values in the TE header field (Section 8.5) and in</td><td class="lineno" valign="top"></td></tr>
435      <tr><td class="lineno" valign="top"></td><td class="left">   the Transfer-Encoding header field (Section 8.7).</td><td> </td><td class="right">   the Transfer-Encoding header field (Section 8.7).</td><td class="lineno" valign="top"></td></tr>
436      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
437      <tr><td class="lineno" valign="top"></td><td class="left">   Whenever a transfer-coding is applied to a message-body, the set of</td><td> </td><td class="right">   Whenever a transfer-coding is applied to a message-body, the set of</td><td class="lineno" valign="top"></td></tr>
438      <tr><td class="lineno" valign="top"></td><td class="left">   transfer-codings MUST include "chunked", unless the message indicates</td><td> </td><td class="right">   transfer-codings MUST include "chunked", unless the message indicates</td><td class="lineno" valign="top"></td></tr>
439      <tr><td class="lineno" valign="top"></td><td class="left">   it is terminated by closing the connection.  When the "chunked"</td><td> </td><td class="right">   it is terminated by closing the connection.  When the "chunked"</td><td class="lineno" valign="top"></td></tr>
440      <tr><td class="lineno" valign="top"></td><td class="left">   transfer-coding is used, it MUST be the last transfer-coding applied</td><td> </td><td class="right">   transfer-coding is used, it MUST be the last transfer-coding applied</td><td class="lineno" valign="top"></td></tr>
441      <tr><td class="lineno" valign="top"></td><td class="left">   to the message-body.  The "chunked" transfer-coding MUST NOT be</td><td> </td><td class="right">   to the message-body.  The "chunked" transfer-coding MUST NOT be</td><td class="lineno" valign="top"></td></tr>
442      <tr><td class="lineno" valign="top"></td><td class="left">   applied more than once to a message-body.  These rules allow the</td><td> </td><td class="right">   applied more than once to a message-body.  These rules allow the</td><td class="lineno" valign="top"></td></tr>
443      <tr><td class="lineno"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno"></td></tr>
444      <tr bgcolor="gray" ><td></td><th><a name="part-l7" /><small>skipping to change at</small><em> page 23, line 18</em></th><th> </th><th><a name="part-r7" /><small>skipping to change at</small><em> page 24, line 18</em></th><td></td></tr>
445      <tr><td class="lineno" valign="top"></td><td class="left">   whitespace with a single SP prior to interpreting the field value or</td><td> </td><td class="right">   whitespace with a single SP prior to interpreting the field value or</td><td class="lineno" valign="top"></td></tr>
446      <tr><td class="lineno" valign="top"></td><td class="left">   forwarding the message downstream.</td><td> </td><td class="right">   forwarding the message downstream.</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">   Comments can be included in some HTTP header fields by surrounding</td><td> </td><td class="right">   Comments can be included in some HTTP header fields by surrounding</td><td class="lineno" valign="top"></td></tr>
449      <tr><td class="lineno" valign="top"></td><td class="left">   the comment text with parentheses.  Comments are only allowed in</td><td> </td><td class="right">   the comment text with parentheses.  Comments are only allowed in</td><td class="lineno" valign="top"></td></tr>
450      <tr><td class="lineno" valign="top"></td><td class="left">   fields containing "comment" as part of their field value definition.</td><td> </td><td class="right">   fields containing "comment" as part of their field value definition.</td><td class="lineno" valign="top"></td></tr>
451      <tr><td class="lineno" valign="top"></td><td class="left">   In all other fields, parentheses are considered part of the field</td><td> </td><td class="right">   In all other fields, parentheses are considered part of the field</td><td class="lineno" valign="top"></td></tr>
452      <tr><td class="lineno" valign="top"></td><td class="left">   value.</td><td> </td><td class="right">   value.</td><td class="lineno" valign="top"></td></tr>
453      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
454      <tr><td class="lineno" valign="top"></td><td class="left">     comment        = "(" *( ctext / quoted-pair / comment ) ")"</td><td> </td><td class="right">     comment        = "(" *( ctext / quoted-pair / comment ) ")"</td><td class="lineno" valign="top"></td></tr>
455      <tr><td><a name="diff0035" /></td></tr>
456      <tr><td class="lineno" valign="top"></td><td class="lblock">     ctext          = <span class="delete">*(</span> OWS / %x21-27 / <span class="delete">%x2A-7E</span> / obs-text <span class="delete">)</span></td><td> </td><td class="rblock">     ctext          = OWS / %x21-27 / <span class="insert">%x2A-5B / %x5D-7E / obs-text</span></td><td class="lineno" valign="top"></td></tr>
457      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">                    ; OWS / &lt;VCHAR except "(", ")", and "\"&gt;</span> / obs-text</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">   The order in which header fields with differing field names are</td><td> </td><td class="right">   The order in which header fields with differing field names are</td><td class="lineno" valign="top"></td></tr>
460      <tr><td class="lineno" valign="top"></td><td class="left">   received is not significant.  However, it is "good practice" to send</td><td> </td><td class="right">   received is not significant.  However, it is "good practice" to send</td><td class="lineno" valign="top"></td></tr>
461      <tr><td class="lineno" valign="top"></td><td class="left">   general-header fields first, followed by request-header or response-</td><td> </td><td class="right">   general-header fields first, followed by request-header or response-</td><td class="lineno" valign="top"></td></tr>
462      <tr><td class="lineno" valign="top"></td><td class="left">   header fields, and ending with the entity-header fields.</td><td> </td><td class="right">   header fields, and ending with the entity-header fields.</td><td class="lineno" valign="top"></td></tr>
463      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
464      <tr><td class="lineno" valign="top"></td><td class="left">   Multiple message-header fields with the same field-name MAY be</td><td> </td><td class="right">   Multiple message-header fields with the same field-name MAY be</td><td class="lineno" valign="top"></td></tr>
465      <tr><td class="lineno" valign="top"></td><td class="left">   present in a message if and only if the entire field-value for that</td><td> </td><td class="right">   present in a message if and only if the entire field-value for that</td><td class="lineno" valign="top"></td></tr>
466      <tr><td class="lineno" valign="top"></td><td class="left">   header field is defined as a comma-separated list [i.e., #(values)].</td><td> </td><td class="right">   header field is defined as a comma-separated list [i.e., #(values)].</td><td class="lineno" valign="top"></td></tr>
467      <tr><td class="lineno" valign="top"></td><td class="left">   It MUST be possible to combine the multiple header fields into one</td><td> </td><td class="right">   It MUST be possible to combine the multiple header fields into one</td><td class="lineno" valign="top"></td></tr>
468      <tr><td class="lineno"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno"></td></tr>
469      <tr bgcolor="gray" ><td></td><th><a name="part-l8" /><small>skipping to change at</small><em> page 24, line 18</em></th><th> </th><th><a name="part-r8" /><small>skipping to change at</small><em> page 25, line 20</em></th><td></td></tr>
470      <tr><td class="lineno" valign="top"></td><td class="left">   message.  Transfer-Encoding is a property of the message, not of the</td><td> </td><td class="right">   message.  Transfer-Encoding is a property of the message, not of the</td><td class="lineno" valign="top"></td></tr>
471      <tr><td class="lineno" valign="top"></td><td class="left">   entity, and thus MAY be added or removed by any application along the</td><td> </td><td class="right">   entity, and thus MAY be added or removed by any application along the</td><td class="lineno" valign="top"></td></tr>
472      <tr><td class="lineno" valign="top"></td><td class="left">   request/response chain.  (However, Section 3.3 places restrictions on</td><td> </td><td class="right">   request/response chain.  (However, Section 3.3 places restrictions on</td><td class="lineno" valign="top"></td></tr>
473      <tr><td class="lineno" valign="top"></td><td class="left">   when certain transfer-codings may be used.)</td><td> </td><td class="right">   when certain transfer-codings may be used.)</td><td class="lineno" valign="top"></td></tr>
474      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
475      <tr><td class="lineno" valign="top"></td><td class="left">   The rules for when a message-body is allowed in a message differ for</td><td> </td><td class="right">   The rules for when a message-body is allowed in a message differ for</td><td class="lineno" valign="top"></td></tr>
476      <tr><td class="lineno" valign="top"></td><td class="left">   requests and responses.</td><td> </td><td class="right">   requests and responses.</td><td class="lineno" valign="top"></td></tr>
477      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
478      <tr><td class="lineno" valign="top"></td><td class="left">   The presence of a message-body in a request is signaled by the</td><td> </td><td class="right">   The presence of a message-body in a request is signaled by the</td><td class="lineno" valign="top"></td></tr>
479      <tr><td class="lineno" valign="top"></td><td class="left">   inclusion of a Content-Length or Transfer-Encoding header field in</td><td> </td><td class="right">   inclusion of a Content-Length or Transfer-Encoding header field in</td><td class="lineno" valign="top"></td></tr>
480      <tr><td><a name="diff0036" /></td></tr>
481      <tr><td class="lineno" valign="top"></td><td class="lblock">   the request's message-headers.  <span class="delete">A message-body MUST NOT be included</span></td><td> </td><td class="rblock">   the request's message-headers.  When a request message contains both</td><td class="lineno" valign="top"></td></tr>
482      <tr><td class="lineno" valign="top"></td><td class="lblock"><span class="delete">   in a request if the specification of the request method (Section 2 of</span></td><td> </td><td class="rblock">   a message-body of non-zero length and a method that does not define</td><td class="lineno" valign="top"></td></tr>
483      <tr><td class="lineno" valign="top"></td><td class="lblock"><span class="delete">   [Part2]) explicitly disallows an entity-body in requests.</span>  When a</td><td> </td><td class="rblock">   any semantics for that request <span class="insert">message-body,</span> then an origin server</td><td class="lineno" valign="top"></td></tr>
484      <tr><td class="lineno" valign="top"></td><td class="lblock">   request message contains both a message-body of non-zero length and a</td><td> </td><td class="rblock">   SHOULD either ignore the message-body or respond with an appropriate</td><td class="lineno" valign="top"></td></tr>
485      <tr><td class="lineno" valign="top"></td><td class="lblock">   method that does not define any semantics for that request <span class="delete">message-</span></td><td> </td><td class="rblock">   error message (e.g., 413).  A proxy or gateway, when presented the</td><td class="lineno" valign="top"></td></tr>
486      <tr><td class="lineno" valign="top"></td><td class="lblock"><span class="delete">   body,</span> then an origin server SHOULD either ignore the message-body or</td><td> </td><td class="rblock">   same request, SHOULD either forward the request inbound with the</td><td class="lineno" valign="top"></td></tr>
487      <tr><td class="lineno" valign="top"></td><td class="lblock">   respond with an appropriate error message (e.g., 413).  A proxy or</td><td> </td><td class="rblock">   message-body or ignore the message-body when determining a response.</td><td class="lineno" valign="top"></td></tr>
488      <tr><td class="lineno" valign="top"></td><td class="lblock">   gateway, when presented the same request, SHOULD either forward the</td><td> </td><td class="rblock"></td><td class="lineno" valign="top"></td></tr>
489      <tr><td class="lineno" valign="top"></td><td class="lblock">   request inbound with the message-body or ignore the message-body when</td><td> </td><td class="rblock"></td><td class="lineno" valign="top"></td></tr>
490      <tr><td class="lineno" valign="top"></td><td class="lblock">   determining a response.</td><td> </td><td class="rblock"></td><td class="lineno" valign="top"></td></tr>
491      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
492      <tr><td class="lineno" valign="top"></td><td class="left">   For response messages, whether or not a message-body is included with</td><td> </td><td class="right">   For response messages, whether or not a message-body is included with</td><td class="lineno" valign="top"></td></tr>
493      <tr><td class="lineno" valign="top"></td><td class="left">   a message is dependent on both the request method and the response</td><td> </td><td class="right">   a message is dependent on both the request method and the response</td><td class="lineno" valign="top"></td></tr>
494      <tr><td class="lineno" valign="top"></td><td class="left">   status code (Section 6.1.1).  All responses to the HEAD request</td><td> </td><td class="right">   status code (Section 6.1.1).  All responses to the HEAD request</td><td class="lineno" valign="top"></td></tr>
495      <tr><td class="lineno" valign="top"></td><td class="left">   method MUST NOT include a message-body, even though the presence of</td><td> </td><td class="right">   method MUST NOT include a message-body, even though the presence of</td><td class="lineno" valign="top"></td></tr>
496      <tr><td class="lineno" valign="top"></td><td class="left">   entity-header fields might lead one to believe they do.  All 1xx</td><td> </td><td class="right">   entity-header fields might lead one to believe they do.  All 1xx</td><td class="lineno" valign="top"></td></tr>
497      <tr><td class="lineno" valign="top"></td><td class="left">   (informational), 204 (No Content), and 304 (Not Modified) responses</td><td> </td><td class="right">   (informational), 204 (No Content), and 304 (Not Modified) responses</td><td class="lineno" valign="top"></td></tr>
498      <tr><td class="lineno" valign="top"></td><td class="left">   MUST NOT include a message-body.  All other responses do include a</td><td> </td><td class="right">   MUST NOT include a message-body.  All other responses do include a</td><td class="lineno" valign="top"></td></tr>
499      <tr><td class="lineno" valign="top"></td><td class="left">   message-body, although it MAY be of zero length.</td><td> </td><td class="right">   message-body, although it MAY be of zero length.</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 class="lineno"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno"></td></tr>
502      <tr bgcolor="gray" ><td></td><th><a name="part-l9" /><small>skipping to change at</small><em> page 25, line 13</em></th><th> </th><th><a name="part-r9" /><small>skipping to change at</small><em> page 26, line 10</em></th><td></td></tr>
503      <tr><td class="lineno" valign="top"></td><td class="left">       in the message.</td><td> </td><td class="right">       in the message.</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">   2.  If a Transfer-Encoding header field (Section 8.7) is present and</td><td> </td><td class="right">   2.  If a Transfer-Encoding header field (Section 8.7) is present and</td><td class="lineno" valign="top"></td></tr>
506      <tr><td class="lineno" valign="top"></td><td class="left">       the "chunked" transfer-coding (Section 3.3) is used, the</td><td> </td><td class="right">       the "chunked" transfer-coding (Section 3.3) is used, the</td><td class="lineno" valign="top"></td></tr>
507      <tr><td class="lineno" valign="top"></td><td class="left">       transfer-length is defined by the use of this transfer-coding.</td><td> </td><td class="right">       transfer-length is defined by the use of this transfer-coding.</td><td class="lineno" valign="top"></td></tr>
508      <tr><td class="lineno" valign="top"></td><td class="left">       If a Transfer-Encoding header field is present and the "chunked"</td><td> </td><td class="right">       If a Transfer-Encoding header field is present and the "chunked"</td><td class="lineno" valign="top"></td></tr>
509      <tr><td class="lineno" valign="top"></td><td class="left">       transfer-coding is not present, the transfer-length is defined by</td><td> </td><td class="right">       transfer-coding is not present, the transfer-length is defined by</td><td class="lineno" valign="top"></td></tr>
510      <tr><td class="lineno" valign="top"></td><td class="left">       the sender closing the connection.</td><td> </td><td class="right">       the sender closing the connection.</td><td class="lineno" valign="top"></td></tr>
511      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
512      <tr><td class="lineno" valign="top"></td><td class="left">   3.  If a Content-Length header field (Section 8.2) is present, its</td><td> </td><td class="right">   3.  If a Content-Length header field (Section 8.2) is present, its</td><td class="lineno" valign="top"></td></tr>
513      <tr><td><a name="diff0037" /></td></tr>
514      <tr><td class="lineno" valign="top"></td><td class="lblock">       <span class="delete">decimal </span>value in OCTETs represents both the entity-length and the</td><td> </td><td class="rblock">       value in OCTETs represents both the entity-length and the</td><td class="lineno" valign="top"></td></tr>
515      <tr><td class="lineno" valign="top"></td><td class="left">       transfer-length.  The Content-Length header field MUST NOT be</td><td> </td><td class="right">       transfer-length.  The Content-Length header field MUST NOT be</td><td class="lineno" valign="top"></td></tr>
516      <tr><td class="lineno" valign="top"></td><td class="left">       sent if these two lengths are different (i.e., if a Transfer-</td><td> </td><td class="right">       sent if these two lengths are different (i.e., if a Transfer-</td><td class="lineno" valign="top"></td></tr>
517      <tr><td class="lineno" valign="top"></td><td class="left">       Encoding header field is present).  If a message is received with</td><td> </td><td class="right">       Encoding header field is present).  If a message is received with</td><td class="lineno" valign="top"></td></tr>
518      <tr><td class="lineno" valign="top"></td><td class="left">       both a Transfer-Encoding header field and a Content-Length header</td><td> </td><td class="right">       both a Transfer-Encoding header field and a Content-Length header</td><td class="lineno" valign="top"></td></tr>
519      <tr><td class="lineno" valign="top"></td><td class="left">       field, the latter MUST be ignored.</td><td> </td><td class="right">       field, the latter MUST be ignored.</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">   4.  If the message uses the media type "multipart/byteranges", and</td><td> </td><td class="right">   4.  If the message uses the media type "multipart/byteranges", and</td><td class="lineno" valign="top"></td></tr>
522      <tr><td class="lineno" valign="top"></td><td class="left">       the transfer-length is not otherwise specified, then this self-</td><td> </td><td class="right">       the transfer-length is not otherwise specified, then this self-</td><td class="lineno" valign="top"></td></tr>
523      <tr><td class="lineno" valign="top"></td><td class="left">       delimiting media type defines the transfer-length.  This media</td><td> </td><td class="right">       delimiting media type defines the transfer-length.  This media</td><td class="lineno" valign="top"></td></tr>
524      <tr><td class="lineno" valign="top"></td><td class="left">       type MUST NOT be used unless the sender knows that the recipient</td><td> </td><td class="right">       type MUST NOT be used unless the sender knows that the recipient</td><td class="lineno" valign="top"></td></tr>
525      <tr><td class="lineno"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno"></td></tr>
526      <tr bgcolor="gray" ><td></td><th><a name="part-l10" /><small>skipping to change at</small><em> page 31, line 23</em></th><th> </th><th><a name="part-r10" /><small>skipping to change at</small><em> page 32, line 18</em></th><td></td></tr>
527      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
528      <tr><td class="lineno" valign="top"></td><td class="left">7.1.1.  Purpose</td><td> </td><td class="right">7.1.1.  Purpose</td><td class="lineno" valign="top"></td></tr>
529      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
530      <tr><td class="lineno" valign="top"></td><td class="left">   Prior to persistent connections, a separate TCP connection was</td><td> </td><td class="right">   Prior to persistent connections, a separate TCP connection was</td><td class="lineno" valign="top"></td></tr>
531      <tr><td class="lineno" valign="top"></td><td class="left">   established to fetch each URL, increasing the load on HTTP servers</td><td> </td><td class="right">   established to fetch each URL, increasing the load on HTTP servers</td><td class="lineno" valign="top"></td></tr>
532      <tr><td class="lineno" valign="top"></td><td class="left">   and causing congestion on the Internet.  The use of inline images and</td><td> </td><td class="right">   and causing congestion on the Internet.  The use of inline images and</td><td class="lineno" valign="top"></td></tr>
533      <tr><td class="lineno" valign="top"></td><td class="left">   other associated data often require a client to make multiple</td><td> </td><td class="right">   other associated data often require a client to make multiple</td><td class="lineno" valign="top"></td></tr>
534      <tr><td class="lineno" valign="top"></td><td class="left">   requests of the same server in a short amount of time.  Analysis of</td><td> </td><td class="right">   requests of the same server in a short amount of time.  Analysis of</td><td class="lineno" valign="top"></td></tr>
535      <tr><td class="lineno" valign="top"></td><td class="left">   these performance problems and results from a prototype</td><td> </td><td class="right">   these performance problems and results from a prototype</td><td class="lineno" valign="top"></td></tr>
536      <tr><td class="lineno" valign="top"></td><td class="left">   implementation are available [Pad1995] [Spe].  Implementation</td><td> </td><td class="right">   implementation are available [Pad1995] [Spe].  Implementation</td><td class="lineno" valign="top"></td></tr>
537      <tr><td><a name="diff0038" /></td></tr>
538      <tr><td class="lineno" valign="top"></td><td class="lblock">   experience and measurements of actual HTTP/1.1 <span class="delete">(RFC 2068)</span></td><td> </td><td class="rblock">   experience and measurements of actual HTTP/1.1 implementations show</td><td class="lineno" valign="top"></td></tr>
539      <tr><td class="lineno" valign="top"></td><td class="lblock">   implementations show good results [Nie1997].  Alternatives have also</td><td> </td><td class="rblock">   good results [Nie1997].  Alternatives have also been explored, for</td><td class="lineno" valign="top"></td></tr>
540      <tr><td class="lineno" valign="top"></td><td class="lblock">   been explored, for example, T/TCP [Tou1998].</td><td> </td><td class="rblock">   example, T/TCP [Tou1998].</td><td class="lineno" valign="top"></td></tr>
541      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
542      <tr><td class="lineno" valign="top"></td><td class="left">   Persistent HTTP connections have a number of advantages:</td><td> </td><td class="right">   Persistent HTTP connections have a number of advantages:</td><td class="lineno" valign="top"></td></tr>
543      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
544      <tr><td class="lineno" valign="top"></td><td class="left">   o  By opening and closing fewer TCP connections, CPU time is saved in</td><td> </td><td class="right">   o  By opening and closing fewer TCP connections, CPU time is saved in</td><td class="lineno" valign="top"></td></tr>
545      <tr><td class="lineno" valign="top"></td><td class="left">      routers and hosts (clients, servers, proxies, gateways, tunnels,</td><td> </td><td class="right">      routers and hosts (clients, servers, proxies, gateways, tunnels,</td><td class="lineno" valign="top"></td></tr>
546      <tr><td class="lineno" valign="top"></td><td class="left">      or caches), and memory used for TCP protocol control blocks can be</td><td> </td><td class="right">      or caches), and memory used for TCP protocol control blocks can be</td><td class="lineno" valign="top"></td></tr>
547      <tr><td class="lineno" valign="top"></td><td class="left">      saved in hosts.</td><td> </td><td class="right">      saved in hosts.</td><td class="lineno" valign="top"></td></tr>
548      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
549      <tr><td class="lineno" valign="top"></td><td class="left">   o  HTTP requests and responses can be pipelined on a connection.</td><td> </td><td class="right">   o  HTTP requests and responses can be pipelined on a connection.</td><td class="lineno" valign="top"></td></tr>
550      <tr><td class="lineno" valign="top"></td><td class="left">      Pipelining allows a client to make multiple requests without</td><td> </td><td class="right">      Pipelining allows a client to make multiple requests without</td><td class="lineno" valign="top"></td></tr>
551      <tr><td class="lineno"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno"></td></tr>
552      <tr bgcolor="gray" ><td></td><th><a name="part-l11" /><small>skipping to change at</small><em> page 33, line 39</em></th><th> </th><th><a name="part-r11" /><small>skipping to change at</small><em> page 34, line 29</em></th><td></td></tr>
553      <tr><td class="lineno" valign="top"></td><td class="left">   It is especially important that proxies correctly implement the</td><td> </td><td class="right">   It is especially important that proxies correctly implement the</td><td class="lineno" valign="top"></td></tr>
554      <tr><td class="lineno" valign="top"></td><td class="left">   properties of the Connection header field as specified in</td><td> </td><td class="right">   properties of the Connection header field as specified in</td><td class="lineno" valign="top"></td></tr>
555      <tr><td class="lineno" valign="top"></td><td class="left">   Section 8.1.</td><td> </td><td class="right">   Section 8.1.</td><td class="lineno" valign="top"></td></tr>
556      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
557      <tr><td class="lineno" valign="top"></td><td class="left">   The proxy server MUST signal persistent connections separately with</td><td> </td><td class="right">   The proxy server MUST signal persistent connections separately with</td><td class="lineno" valign="top"></td></tr>
558      <tr><td class="lineno" valign="top"></td><td class="left">   its clients and the origin servers (or other proxy servers) that it</td><td> </td><td class="right">   its clients and the origin servers (or other proxy servers) that it</td><td class="lineno" valign="top"></td></tr>
559      <tr><td class="lineno" valign="top"></td><td class="left">   connects to.  Each persistent connection applies to only one</td><td> </td><td class="right">   connects to.  Each persistent connection applies to only one</td><td class="lineno" valign="top"></td></tr>
560      <tr><td class="lineno" valign="top"></td><td class="left">   transport link.</td><td> </td><td class="right">   transport link.</td><td class="lineno" valign="top"></td></tr>
561      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
562      <tr><td class="lineno" valign="top"></td><td class="left">   A proxy server MUST NOT establish a HTTP/1.1 persistent connection</td><td> </td><td class="right">   A proxy server MUST NOT establish a HTTP/1.1 persistent connection</td><td class="lineno" valign="top"></td></tr>
563      <tr><td><a name="diff0039" /></td></tr>
564      <tr><td class="lineno" valign="top"></td><td class="lblock">   with an HTTP/1.0 client (but see [RFC2068] for information and</td><td> </td><td class="rblock">   with an HTTP/1.0 client (but see <span class="insert">Section 19.7.1 of</span> [RFC2068] for</td><td class="lineno" valign="top"></td></tr>
565      <tr><td class="lineno" valign="top"></td><td class="lblock">   discussion of the problems with the Keep-Alive header implemented by</td><td> </td><td class="rblock">   information and discussion of the problems with the Keep-Alive header</td><td class="lineno" valign="top"></td></tr>
566      <tr><td class="lineno" valign="top"></td><td class="lblock">   many HTTP/1.0 clients).</td><td> </td><td class="rblock">   implemented by many HTTP/1.0 clients).</td><td class="lineno" valign="top"></td></tr>
567      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
568      <tr><td class="lineno" valign="top"></td><td class="left">7.1.4.  Practical Considerations</td><td> </td><td class="right">7.1.4.  Practical Considerations</td><td class="lineno" valign="top"></td></tr>
569      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
570      <tr><td class="lineno" valign="top"></td><td class="left">   Servers will usually have some time-out value beyond which they will</td><td> </td><td class="right">   Servers will usually have some time-out value beyond which they will</td><td class="lineno" valign="top"></td></tr>
571      <tr><td class="lineno" valign="top"></td><td class="left">   no longer maintain an inactive connection.  Proxy servers might make</td><td> </td><td class="right">   no longer maintain an inactive connection.  Proxy servers might make</td><td class="lineno" valign="top"></td></tr>
572      <tr><td class="lineno" valign="top"></td><td class="left">   this a higher value since it is likely that the client will be making</td><td> </td><td class="right">   this a higher value since it is likely that the client will be making</td><td class="lineno" valign="top"></td></tr>
573      <tr><td class="lineno" valign="top"></td><td class="left">   more connections through the same server.  The use of persistent</td><td> </td><td class="right">   more connections through the same server.  The use of persistent</td><td class="lineno" valign="top"></td></tr>
574      <tr><td class="lineno" valign="top"></td><td class="left">   connections places no requirements on the length (or existence) of</td><td> </td><td class="right">   connections places no requirements on the length (or existence) of</td><td class="lineno" valign="top"></td></tr>
575      <tr><td class="lineno" valign="top"></td><td class="left">   this time-out for either the client or the server.</td><td> </td><td class="right">   this time-out for either the client or the server.</td><td class="lineno" valign="top"></td></tr>
576      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
577      <tr><td class="lineno"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno"></td></tr>
578      <tr bgcolor="gray" ><td></td><th><a name="part-l12" /><small>skipping to change at</small><em> page 39, line 20</em></th><th> </th><th><a name="part-r12" /><small>skipping to change at</small><em> page 40, line 10</em></th><td></td></tr>
579      <tr><td class="lineno" valign="top"></td><td class="left">   A system receiving an HTTP/1.0 (or lower-version) message that</td><td> </td><td class="right">   A system receiving an HTTP/1.0 (or lower-version) message that</td><td class="lineno" valign="top"></td></tr>
580      <tr><td class="lineno" valign="top"></td><td class="left">   includes a Connection header MUST, for each connection-token in this</td><td> </td><td class="right">   includes a Connection header MUST, for each connection-token in this</td><td class="lineno" valign="top"></td></tr>
581      <tr><td class="lineno" valign="top"></td><td class="left">   field, remove and ignore any header field(s) from the message with</td><td> </td><td class="right">   field, remove and ignore any header field(s) from the message with</td><td class="lineno" valign="top"></td></tr>
582      <tr><td class="lineno" valign="top"></td><td class="left">   the same name as the connection-token.  This protects against</td><td> </td><td class="right">   the same name as the connection-token.  This protects against</td><td class="lineno" valign="top"></td></tr>
583      <tr><td class="lineno" valign="top"></td><td class="left">   mistaken forwarding of such header fields by pre-HTTP/1.1 proxies.</td><td> </td><td class="right">   mistaken forwarding of such header fields by pre-HTTP/1.1 proxies.</td><td class="lineno" valign="top"></td></tr>
584      <tr><td class="lineno" valign="top"></td><td class="left">   See Appendix B.2.</td><td> </td><td class="right">   See Appendix B.2.</td><td class="lineno" valign="top"></td></tr>
585      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
586      <tr><td class="lineno" valign="top"></td><td class="left">8.2.  Content-Length</td><td> </td><td class="right">8.2.  Content-Length</td><td class="lineno" valign="top"></td></tr>
587      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
588      <tr><td class="lineno" valign="top"></td><td class="left">   The entity-header field "Content-Length" indicates the size of the</td><td> </td><td class="right">   The entity-header field "Content-Length" indicates the size of the</td><td class="lineno" valign="top"></td></tr>
589      <tr><td><a name="diff0040" /></td></tr>
590      <tr><td class="lineno" valign="top"></td><td class="lblock">   entity-body, in <span class="delete">decimal</span> number of OCTETs, sent to the recipient or,</td><td> </td><td class="rblock">   entity-body, in number of OCTETs, sent to the recipient or, in the</td><td class="lineno" valign="top"></td></tr>
591      <tr><td class="lineno" valign="top"></td><td class="lblock">   in the case of the HEAD method, the size of the entity-body that</td><td> </td><td class="rblock">   case of the HEAD method, the size of the entity-body that would have</td><td class="lineno" valign="top"></td></tr>
592      <tr><td class="lineno" valign="top"></td><td class="lblock">   would have been sent had the request been a GET.</td><td> </td><td class="rblock">   been sent had the request been a GET.</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">     Content-Length   = "Content-Length" ":" OWS 1*Content-Length-v</td><td> </td><td class="right">     Content-Length   = "Content-Length" ":" OWS 1*Content-Length-v</td><td class="lineno" valign="top"></td></tr>
595      <tr><td class="lineno" valign="top"></td><td class="left">     Content-Length-v = 1*DIGIT</td><td> </td><td class="right">     Content-Length-v = 1*DIGIT</td><td class="lineno" valign="top"></td></tr>
596      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
597      <tr><td class="lineno" valign="top"></td><td class="left">   An example is</td><td> </td><td class="right">   An example is</td><td class="lineno" valign="top"></td></tr>
598      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
599      <tr><td class="lineno" valign="top"></td><td class="left">     Content-Length: 3495</td><td> </td><td class="right">     Content-Length: 3495</td><td class="lineno" valign="top"></td></tr>
600      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
601      <tr><td class="lineno" valign="top"></td><td class="left">   Applications SHOULD use this field to indicate the transfer-length of</td><td> </td><td class="right">   Applications SHOULD use this field to indicate the transfer-length of</td><td class="lineno" valign="top"></td></tr>
602      <tr><td class="lineno" valign="top"></td><td class="left">   the message-body, unless this is prohibited by the rules in</td><td> </td><td class="right">   the message-body, unless this is prohibited by the rules in</td><td class="lineno" valign="top"></td></tr>
603      <tr><td class="lineno"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno"></td></tr>
604      <tr bgcolor="gray" ><td></td><th><a name="part-l13" /><small>skipping to change at</small><em> page 39, line 51</em></th><th> </th><th><a name="part-r13" /><small>skipping to change at</small><em> page 40, line 41</em></th><td></td></tr>
605      <tr><td class="lineno" valign="top"></td><td class="left">   used within the "message/external-body" content-type.  In HTTP, it</td><td> </td><td class="right">   used within the "message/external-body" content-type.  In HTTP, it</td><td class="lineno" valign="top"></td></tr>
606      <tr><td class="lineno" valign="top"></td><td class="left">   SHOULD be sent whenever the message's length can be determined prior</td><td> </td><td class="right">   SHOULD be sent whenever the message's length can be determined prior</td><td class="lineno" valign="top"></td></tr>
607      <tr><td class="lineno" valign="top"></td><td class="left">   to being transferred, unless this is prohibited by the rules in</td><td> </td><td class="right">   to being transferred, unless this is prohibited by the rules in</td><td class="lineno" valign="top"></td></tr>
608      <tr><td class="lineno" valign="top"></td><td class="left">   Section 4.4.</td><td> </td><td class="right">   Section 4.4.</td><td class="lineno" valign="top"></td></tr>
609      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
610      <tr><td class="lineno" valign="top"></td><td class="left">8.3.  Date</td><td> </td><td class="right">8.3.  Date</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 class="lineno" valign="top"></td><td class="left">   The general-header field "Date" represents the date and time at which</td><td> </td><td class="right">   The general-header field "Date" represents the date and time at which</td><td class="lineno" valign="top"></td></tr>
613      <tr><td class="lineno" valign="top"></td><td class="left">   the message was originated, having the same semantics as orig-date in</td><td> </td><td class="right">   the message was originated, having the same semantics as orig-date in</td><td class="lineno" valign="top"></td></tr>
614      <tr><td class="lineno" valign="top"></td><td class="left">   Section 3.6.1 of [RFC5322].  The field value is an HTTP-date, as</td><td> </td><td class="right">   Section 3.6.1 of [RFC5322].  The field value is an HTTP-date, as</td><td class="lineno" valign="top"></td></tr>
615      <tr><td><a name="diff0041" /></td></tr>
616      <tr><td class="lineno" valign="top"></td><td class="lblock">   described in Section 3.2<span class="delete">.1</span>; it MUST be sent in rfc1123-date format.</td><td> </td><td class="rblock">   described in Section 3.2; it MUST be sent in rfc1123-date format.</td><td class="lineno" valign="top"></td></tr>
617      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
618      <tr><td class="lineno" valign="top"></td><td class="left">     Date   = "Date" ":" OWS Date-v</td><td> </td><td class="right">     Date   = "Date" ":" OWS Date-v</td><td class="lineno" valign="top"></td></tr>
619      <tr><td class="lineno" valign="top"></td><td class="left">     Date-v = HTTP-date</td><td> </td><td class="right">     Date-v = HTTP-date</td><td class="lineno" valign="top"></td></tr>
620      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
621      <tr><td class="lineno" valign="top"></td><td class="left">   An example is</td><td> </td><td class="right">   An example is</td><td class="lineno" valign="top"></td></tr>
622      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
623      <tr><td class="lineno" valign="top"></td><td class="left">     Date: Tue, 15 Nov 1994 08:12:31 GMT</td><td> </td><td class="right">     Date: Tue, 15 Nov 1994 08:12:31 GMT</td><td class="lineno" valign="top"></td></tr>
624      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
625      <tr><td class="lineno" valign="top"></td><td class="left">   Origin servers MUST include a Date header field in all responses,</td><td> </td><td class="right">   Origin servers MUST include a Date header field in all responses,</td><td class="lineno" valign="top"></td></tr>
626      <tr><td class="lineno" valign="top"></td><td class="left">   except in these cases:</td><td> </td><td class="right">   except in these cases:</td><td class="lineno" valign="top"></td></tr>
627      <tr><td class="lineno"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno"></td></tr>
628      <tr bgcolor="gray" ><td></td><th><a name="part-l14" /><small>skipping to change at</small><em> page 53, line 45</em></th><th> </th><th><a name="part-r14" /><small>skipping to change at</small><em> page 54, line 37</em></th><td></td></tr>
629      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
630      <tr><td class="lineno" valign="top"></td><td class="left">   [ISO-8859-1]</td><td> </td><td class="right">   [ISO-8859-1]</td><td class="lineno" valign="top"></td></tr>
631      <tr><td class="lineno" valign="top"></td><td class="left">              International Organization for Standardization,</td><td> </td><td class="right">              International Organization for Standardization,</td><td class="lineno" valign="top"></td></tr>
632      <tr><td class="lineno" valign="top"></td><td class="left">              "Information technology -- 8-bit single-byte coded graphic</td><td> </td><td class="right">              "Information technology -- 8-bit single-byte coded graphic</td><td class="lineno" valign="top"></td></tr>
633      <tr><td class="lineno" valign="top"></td><td class="left">              character sets -- Part 1: Latin alphabet No. 1", ISO/</td><td> </td><td class="right">              character sets -- Part 1: Latin alphabet No. 1", ISO/</td><td class="lineno" valign="top"></td></tr>
634      <tr><td class="lineno" valign="top"></td><td class="left">              IEC 8859-1:1998, 1998.</td><td> </td><td class="right">              IEC 8859-1:1998, 1998.</td><td class="lineno" valign="top"></td></tr>
635      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
636      <tr><td class="lineno" valign="top"></td><td class="left">   [Part2]    Fielding, R., Ed., Gettys, J., Mogul, J., Frystyk, H.,</td><td> </td><td class="right">   [Part2]    Fielding, R., Ed., Gettys, J., Mogul, J., Frystyk, H.,</td><td class="lineno" valign="top"></td></tr>
637      <tr><td class="lineno" valign="top"></td><td class="left">              Masinter, L., Leach, P., Berners-Lee, T., Lafon, Y., Ed.,</td><td> </td><td class="right">              Masinter, L., Leach, P., Berners-Lee, T., Lafon, Y., Ed.,</td><td class="lineno" valign="top"></td></tr>
638      <tr><td class="lineno" valign="top"></td><td class="left">              and J. Reschke, Ed., "HTTP/1.1, part 2: Message</td><td> </td><td class="right">              and J. Reschke, Ed., "HTTP/1.1, part 2: Message</td><td class="lineno" valign="top"></td></tr>
639      <tr><td><a name="diff0042" /></td></tr>
640      <tr><td class="lineno" valign="top"></td><td class="lblock">              Semantics", <span class="delete">draft-ietf-httpbis-p2-semantics-06</span> (work in</td><td> </td><td class="rblock">              Semantics", <span class="insert">draft-ietf-httpbis-p2-semantics-07</span> (work in</td><td class="lineno" valign="top"></td></tr>
641      <tr><td class="lineno" valign="top"></td><td class="lblock">              progress), <span class="delete">March</span> 2009.</td><td> </td><td class="rblock">              progress), <span class="insert">July</span> 2009.</td><td class="lineno" valign="top"></td></tr>
642      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
643      <tr><td class="lineno" valign="top"></td><td class="left">   [Part3]    Fielding, R., Ed., Gettys, J., Mogul, J., Frystyk, H.,</td><td> </td><td class="right">   [Part3]    Fielding, R., Ed., Gettys, J., Mogul, J., Frystyk, H.,</td><td class="lineno" valign="top"></td></tr>
644      <tr><td class="lineno" valign="top"></td><td class="left">              Masinter, L., Leach, P., Berners-Lee, T., Lafon, Y., Ed.,</td><td> </td><td class="right">              Masinter, L., Leach, P., Berners-Lee, T., Lafon, Y., Ed.,</td><td class="lineno" valign="top"></td></tr>
645      <tr><td class="lineno" valign="top"></td><td class="left">              and J. Reschke, Ed., "HTTP/1.1, part 3: Message Payload</td><td> </td><td class="right">              and J. Reschke, Ed., "HTTP/1.1, part 3: Message Payload</td><td class="lineno" valign="top"></td></tr>
646      <tr><td><a name="diff0043" /></td></tr>
647      <tr><td class="lineno" valign="top"></td><td class="lblock">              and Content Negotiation", <span class="delete">draft-ietf-httpbis-p3-payload-06</span></td><td> </td><td class="rblock">              and Content Negotiation", <span class="insert">draft-ietf-httpbis-p3-payload-07</span></td><td class="lineno" valign="top"></td></tr>
648      <tr><td class="lineno" valign="top"></td><td class="lblock">              (work in progress), <span class="delete">March</span> 2009.</td><td> </td><td class="rblock">              (work in progress), <span class="insert">July</span> 2009.</td><td class="lineno" valign="top"></td></tr>
649      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
650      <tr><td class="lineno" valign="top"></td><td class="left">   [Part5]    Fielding, R., Ed., Gettys, J., Mogul, J., Frystyk, H.,</td><td> </td><td class="right">   [Part5]    Fielding, R., Ed., Gettys, J., Mogul, J., Frystyk, H.,</td><td class="lineno" valign="top"></td></tr>
651      <tr><td class="lineno" valign="top"></td><td class="left">              Masinter, L., Leach, P., Berners-Lee, T., Lafon, Y., Ed.,</td><td> </td><td class="right">              Masinter, L., Leach, P., Berners-Lee, T., Lafon, Y., Ed.,</td><td class="lineno" valign="top"></td></tr>
652      <tr><td class="lineno" valign="top"></td><td class="left">              and J. Reschke, Ed., "HTTP/1.1, part 5: Range Requests and</td><td> </td><td class="right">              and J. Reschke, Ed., "HTTP/1.1, part 5: Range Requests and</td><td class="lineno" valign="top"></td></tr>
653      <tr><td><a name="diff0044" /></td></tr>
654      <tr><td class="lineno" valign="top"></td><td class="lblock">              Partial Responses", <span class="delete">draft-ietf-httpbis-p5-range-06</span> (work</td><td> </td><td class="rblock">              Partial Responses", <span class="insert">draft-ietf-httpbis-p5-range-07</span> (work</td><td class="lineno" valign="top"></td></tr>
655      <tr><td class="lineno" valign="top"></td><td class="lblock">              in progress), <span class="delete">March</span> 2009.</td><td> </td><td class="rblock">              in progress), <span class="insert">July</span> 2009.</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">   [Part6]    Fielding, R., Ed., Gettys, J., Mogul, J., Frystyk, H.,</td><td> </td><td class="right">   [Part6]    Fielding, R., Ed., Gettys, J., Mogul, J., Frystyk, H.,</td><td class="lineno" valign="top"></td></tr>
658      <tr><td class="lineno" valign="top"></td><td class="left">              Masinter, L., Leach, P., Berners-Lee, T., Lafon, Y., Ed.,</td><td> </td><td class="right">              Masinter, L., Leach, P., Berners-Lee, T., Lafon, Y., Ed.,</td><td class="lineno" valign="top"></td></tr>
659      <tr><td><a name="diff0045" /></td></tr>
660      <tr><td class="lineno" valign="top"></td><td class="lblock">              and J. Reschke, Ed., "HTTP/1.1, part 6: Caching",</td><td> </td><td class="rblock">              <span class="insert">Nottingham, M., Ed.,</span> and J. Reschke, Ed., "HTTP/1.1, part</td><td class="lineno" valign="top"></td></tr>
661      <tr><td class="lineno" valign="top"></td><td class="lblock">              <span class="delete">draft-ietf-httpbis-p6-cache-06</span> (work in progress),</td><td> </td><td class="rblock">              6: Caching", <span class="insert">draft-ietf-httpbis-p6-cache-07</span> (work in</td><td class="lineno" valign="top"></td></tr>
662      <tr><td class="lineno" valign="top"></td><td class="lblock">              <span class="delete">March</span> 2009.</td><td> </td><td class="rblock">              progress), <span class="insert">July</span> 2009.</td><td class="lineno" valign="top"></td></tr>
663      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
664      <tr><td class="lineno" valign="top"></td><td class="left">   [RFC2119]  Bradner, S., "Key words for use in RFCs to Indicate</td><td> </td><td class="right">   [RFC2119]  Bradner, S., "Key words for use in RFCs to Indicate</td><td class="lineno" valign="top"></td></tr>
665      <tr><td class="lineno" valign="top"></td><td class="left">              Requirement Levels", BCP 14, RFC 2119, March 1997.</td><td> </td><td class="right">              Requirement Levels", BCP 14, RFC 2119, March 1997.</td><td class="lineno" valign="top"></td></tr>
666      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
667      <tr><td class="lineno" valign="top"></td><td class="left">   [RFC3986]  Berners-Lee, T., Fielding, R., and L. Masinter, "Uniform</td><td> </td><td class="right">   [RFC3986]  Berners-Lee, T., Fielding, R., and L. Masinter, "Uniform</td><td class="lineno" valign="top"></td></tr>
668      <tr><td class="lineno" valign="top"></td><td class="left">              Resource Identifier (URI): Generic Syntax", RFC 3986,</td><td> </td><td class="right">              Resource Identifier (URI): Generic Syntax", RFC 3986,</td><td class="lineno" valign="top"></td></tr>
669      <tr><td class="lineno" valign="top"></td><td class="left">              STD 66, January 2005.</td><td> </td><td class="right">              STD 66, January 2005.</td><td class="lineno" valign="top"></td></tr>
670      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
671      <tr><td class="lineno" valign="top"></td><td class="left">   [RFC5234]  Crocker, D., Ed. and P. Overell, "Augmented BNF for Syntax</td><td> </td><td class="right">   [RFC5234]  Crocker, D., Ed. and P. Overell, "Augmented BNF for Syntax</td><td class="lineno" valign="top"></td></tr>
672      <tr><td class="lineno" valign="top"></td><td class="left">              Specifications: ABNF", STD 68, RFC 5234, January 2008.</td><td> </td><td class="right">              Specifications: ABNF", STD 68, RFC 5234, January 2008.</td><td class="lineno" valign="top"></td></tr>
673      <tr><td class="lineno"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno"></td></tr>
674      <tr bgcolor="gray" ><td></td><th><a name="part-l15" /><small>skipping to change at</small><em> page 59, line 35</em></th><th> </th><th><a name="part-r15" /><small>skipping to change at</small><em> page 60, line 23</em></th><td></td></tr>
675      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
676      <tr><td class="lineno" valign="top"></td><td class="left">   However, talking to proxies is the most important use of persistent</td><td> </td><td class="right">   However, talking to proxies is the most important use of persistent</td><td class="lineno" valign="top"></td></tr>
677      <tr><td class="lineno" valign="top"></td><td class="left">   connections, so that prohibition is clearly unacceptable.  Therefore,</td><td> </td><td class="right">   connections, so that prohibition is clearly unacceptable.  Therefore,</td><td class="lineno" valign="top"></td></tr>
678      <tr><td class="lineno" valign="top"></td><td class="left">   we need some other mechanism for indicating a persistent connection</td><td> </td><td class="right">   we need some other mechanism for indicating a persistent connection</td><td class="lineno" valign="top"></td></tr>
679      <tr><td class="lineno" valign="top"></td><td class="left">   is desired, which is safe to use even when talking to an old proxy</td><td> </td><td class="right">   is desired, which is safe to use even when talking to an old proxy</td><td class="lineno" valign="top"></td></tr>
680      <tr><td class="lineno" valign="top"></td><td class="left">   that ignores Connection.  Persistent connections are the default for</td><td> </td><td class="right">   that ignores Connection.  Persistent connections are the default for</td><td class="lineno" valign="top"></td></tr>
681      <tr><td class="lineno" valign="top"></td><td class="left">   HTTP/1.1 messages; we introduce a new keyword (Connection: close) for</td><td> </td><td class="right">   HTTP/1.1 messages; we introduce a new keyword (Connection: close) for</td><td class="lineno" valign="top"></td></tr>
682      <tr><td class="lineno" valign="top"></td><td class="left">   declaring non-persistence.  See Section 8.1.</td><td> </td><td class="right">   declaring non-persistence.  See Section 8.1.</td><td class="lineno" valign="top"></td></tr>
683      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
684      <tr><td class="lineno" valign="top"></td><td class="left">   The original HTTP/1.0 form of persistent connections (the Connection:</td><td> </td><td class="right">   The original HTTP/1.0 form of persistent connections (the Connection:</td><td class="lineno" valign="top"></td></tr>
685      <tr><td><a name="diff0046" /></td></tr>
686      <tr><td class="lineno" valign="top"></td><td class="lblock">   Keep-Alive and Keep-Alive header) is documented in [RFC2068].</td><td> </td><td class="rblock">   Keep-Alive and Keep-Alive header) is documented in <span class="insert">Section 19.7.1 of</span></td><td class="lineno" valign="top"></td></tr>
687      <tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock">   [RFC2068].</td><td class="lineno" valign="top"></td></tr>
688      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
689      <tr><td class="lineno" valign="top"></td><td class="left">B.3.  Changes from RFC 2068</td><td> </td><td class="right">B.3.  Changes from RFC 2068</td><td class="lineno" valign="top"></td></tr>
690      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
691      <tr><td class="lineno" valign="top"></td><td class="left">   This specification has been carefully audited to correct and</td><td> </td><td class="right">   This specification has been carefully audited to correct and</td><td class="lineno" valign="top"></td></tr>
692      <tr><td class="lineno" valign="top"></td><td class="left">   disambiguate key word usage; RFC 2068 had many problems in respect to</td><td> </td><td class="right">   disambiguate key word usage; RFC 2068 had many problems in respect to</td><td class="lineno" valign="top"></td></tr>
693      <tr><td class="lineno" valign="top"></td><td class="left">   the conventions laid out in [RFC2119].</td><td> </td><td class="right">   the conventions laid out in [RFC2119].</td><td class="lineno" valign="top"></td></tr>
694      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
695      <tr><td class="lineno" valign="top"></td><td class="left">   Transfer-coding and message lengths all interact in ways that</td><td> </td><td class="right">   Transfer-coding and message lengths all interact in ways that</td><td class="lineno" valign="top"></td></tr>
696      <tr><td class="lineno" valign="top"></td><td class="left">   required fixing exactly when chunked encoding is used (to allow for</td><td> </td><td class="right">   required fixing exactly when chunked encoding is used (to allow for</td><td class="lineno" valign="top"></td></tr>
697      <tr><td class="lineno" valign="top"></td><td class="left">   transfer encoding that may not be self delimiting); it was important</td><td> </td><td class="right">   transfer encoding that may not be self delimiting); it was important</td><td class="lineno" valign="top"></td></tr>
698      <tr><td class="lineno"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno"></td></tr>
699      <tr bgcolor="gray" ><td></td><th><a name="part-l16" /><small>skipping to change at</small><em> page 64, line 20</em></th><th> </th><th><a name="part-r16" /><small>skipping to change at</small><em> page 65, line 9</em></th><td></td></tr>
700      <tr><td class="lineno" valign="top"></td><td class="left">   Chunked-Body = *chunk last-chunk trailer-part CRLF</td><td> </td><td class="right">   Chunked-Body = *chunk last-chunk trailer-part CRLF</td><td class="lineno" valign="top"></td></tr>
701      <tr><td class="lineno" valign="top"></td><td class="left">   Connection = "Connection:" OWS Connection-v</td><td> </td><td class="right">   Connection = "Connection:" OWS Connection-v</td><td class="lineno" valign="top"></td></tr>
702      <tr><td class="lineno" valign="top"></td><td class="left">   Connection-v = *( "," OWS ) connection-token *( OWS "," [ OWS</td><td> </td><td class="right">   Connection-v = *( "," OWS ) connection-token *( OWS "," [ OWS</td><td class="lineno" valign="top"></td></tr>
703      <tr><td class="lineno" valign="top"></td><td class="left">    connection-token ] )</td><td> </td><td class="right">    connection-token ] )</td><td class="lineno" valign="top"></td></tr>
704      <tr><td class="lineno" valign="top"></td><td class="left">   Content-Length = "Content-Length:" OWS 1*Content-Length-v</td><td> </td><td class="right">   Content-Length = "Content-Length:" OWS 1*Content-Length-v</td><td class="lineno" valign="top"></td></tr>
705      <tr><td class="lineno" valign="top"></td><td class="left">   Content-Length-v = 1*DIGIT</td><td> </td><td class="right">   Content-Length-v = 1*DIGIT</td><td class="lineno" valign="top"></td></tr>
706      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
707      <tr><td class="lineno" valign="top"></td><td class="left">   Date = "Date:" OWS Date-v</td><td> </td><td class="right">   Date = "Date:" OWS Date-v</td><td class="lineno" valign="top"></td></tr>
708      <tr><td class="lineno" valign="top"></td><td class="left">   Date-v = HTTP-date</td><td> </td><td class="right">   Date-v = HTTP-date</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><a name="diff0047" /></td></tr>
711      <tr><td class="lineno" valign="top"></td><td class="lblock">   GMT = %x47.4D.54</td><td> </td><td class="rblock">   GMT = %x47.4D.54<span class="insert"> ; GMT</span></td><td class="lineno" valign="top"></td></tr>
712      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
713      <tr><td><a name="diff0048" /></td></tr>
714      <tr><td class="lineno" valign="top"></td><td class="lblock">   HTTP-Prot-Name = %x48.54.54.50</td><td> </td><td class="rblock">   HTTP-Prot-Name = %x48.54.54.50<span class="insert"> ; HTTP</span></td><td class="lineno" valign="top"></td></tr>
715      <tr><td class="lineno" valign="top"></td><td class="left">   HTTP-Version = HTTP-Prot-Name "/" 1*DIGIT "." 1*DIGIT</td><td> </td><td class="right">   HTTP-Version = HTTP-Prot-Name "/" 1*DIGIT "." 1*DIGIT</td><td class="lineno" valign="top"></td></tr>
716      <tr><td><a name="diff0049" /></td></tr>
717      <tr><td class="lineno" valign="top"></td><td class="lblock">   HTTP-date = rfc1123-date / obs<span class="delete">olete</span>-date</td><td> </td><td class="rblock">   HTTP-date = rfc1123-date / obs-date</td><td class="lineno" valign="top"></td></tr>
718      <tr><td class="lineno" valign="top"></td><td class="left">   HTTP-message = Request / Response</td><td> </td><td class="right">   HTTP-message = Request / Response</td><td class="lineno" valign="top"></td></tr>
719      <tr><td class="lineno" valign="top"></td><td class="left">   Host = "Host:" OWS Host-v</td><td> </td><td class="right">   Host = "Host:" OWS Host-v</td><td class="lineno" valign="top"></td></tr>
720      <tr><td class="lineno" valign="top"></td><td class="left">   Host-v = uri-host [ ":" port ]</td><td> </td><td class="right">   Host-v = uri-host [ ":" port ]</td><td class="lineno" valign="top"></td></tr>
721      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
722      <tr><td class="lineno" valign="top"></td><td class="left">   Method = token</td><td> </td><td class="right">   Method = token</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">   OWS = *( [ obs-fold ] WSP )</td><td> </td><td class="right">   OWS = *( [ obs-fold ] WSP )</td><td class="lineno" valign="top"></td></tr>
725      <tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></