Annotation of 2006/webapi/XMLHttpRequest/Overview.src.html, revision 1.145
1.60 avankest 1: <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN">
1.1 avankest 2: <html lang="en-US">
3: <head>
4: <title>The XMLHttpRequest Object</title>
1.16 avankest 5: <style type="text/css">
1.117 avankest 6: pre.idl { border:solid thin; background:#eee; color:#000; padding:0.5em }
1.16 avankest 7: pre.idl :link, pre.idl :visited { color:inherit; background:transparent }
1.58 avankest 8: pre code { color:inherit; background:transparent }
1.16 avankest 9: div.example { margin-left:1em; padding-left:1em; border-left:double; color:#222; background:#fcfcfc }
1.89 avankest 10: .note { margin-left:2em; font-weight:bold; font-style:italic; color:#008000 }
1.16 avankest 11: p.note::before { content:"Note: " }
1.89 avankest 12: .issue { padding:.5em; border:solid #f00 }
1.16 avankest 13: p.issue::before { content:"Issue: " }
1.119 avankest 14: dl.switch { padding-left:2em }
15: dl.switch dt { text-indent:-1.5em }
16: dl.switch dt:before { content:'21円AA'; padding:0 0.5em 0 0; display:inline-block; width:1em; text-align:right; line-height:0.5em }
1.16 avankest 17: em.ct { text-transform:lowercase; font-variant:small-caps; font-style:normal }
18: dfn { font-weight:bold; font-style:normal }
19: code { color:orangered }
20: code :link, code :visited { color:inherit }
1.122 avankest 21: h1 code, h2 code, h3 code { color:inherit; background:inherit; font:inherit }
1.16 avankest 22: </style>
1.7 avankest 23: <link rel="stylesheet" href="http://www.w3.org/StyleSheets/TR/base">
1.143 avankest 24: <link rel="stylesheet" href="http://www.w3.org/StyleSheets/TR/W3C-ED">
1.1 avankest 25: </head>
26: <body>
27: <div class="head">
28: <p><a href="http://www.w3.org/"><img height="48" width="72" alt="W3C" src="http://www.w3.org/Icons/w3c_home"></a></p>
1.12 avankest 29:
1.10 avankest 30: <h1 class="head">The <code title="">XMLHttpRequest</code> Object</h1>
1.12 avankest 31:
1.127 avankest 32: <h2 class="no-num no-toc" id="pagesubtitle">Editor's draft<!--W3C Working Draft--> [DATE: 3 August 2002]</h2>
1.12 avankest 33:
1.1 avankest 34: <dl>
1.10 avankest 35: <dt>This Version:</dt>
1.47 avankest 36: <dd><a href="[VERSION]/">http://www.w3.org/TR/[YEAR]/WD-XMLHttpRequest-[CDATE]/</a></dd>
1.14 avankest 37:
1.10 avankest 38: <dt>Latest Version:</dt>
1.1 avankest 39: <dd><a href="http://www.w3.org/TR/XMLHttpRequest/">http://www.w3.org/TR/XMLHttpRequest/</a></dd>
1.14 avankest 40:
1.10 avankest 41: <dt>Previous Versions:</dt>
1.133 avankest 42: <dd><a href="http://www.w3.org/TR/2007/WD-XMLHttpRequest-20070618/">http://www.w3.org/TR/2007/WD-XMLHttpRequest-20070618/</a></dd>
1.58 avankest 43: <dd><a href="http://www.w3.org/TR/2007/WD-XMLHttpRequest-20070227/">http://www.w3.org/TR/2007/WD-XMLHttpRequest-20070227/</a></dd>
1.22 avankest 44: <dd><a href="http://www.w3.org/TR/2006/WD-XMLHttpRequest-20060927/">http://www.w3.org/TR/2006/WD-XMLHttpRequest-20060927/</a></dd>
1.1 avankest 45: <dd><a href="http://www.w3.org/TR/2006/WD-XMLHttpRequest-20060619/">http://www.w3.org/TR/2006/WD-XMLHttpRequest-20060619/</a></dd>
46: <dd><a href="http://www.w3.org/TR/2006/WD-XMLHttpRequest-20060405/">http://www.w3.org/TR/2006/WD-XMLHttpRequest-20060405/</a></dd>
1.14 avankest 47:
1.1 avankest 48: <dt>Editor:</dt>
49: <dd><a href="http://annevankesteren.nl/">Anne van Kesteren</a>
50: (<a href="http://www.opera.com/">Opera Software ASA</a>)
51: <<a href="mailto:annevk@opera.com">annevk@opera.com</a>></dd>
52: </dl>
1.14 avankest 53:
1.1 avankest 54: <p class="copyright"><a href="http://www.w3.org/Consortium/Legal/ipr-notice#Copyright">Copyright</a>
1.51 avankest 55: © 2007
56: <a href="http://www.w3.org/"><acronym title="World Wide Web Consortium">W3C</acronym></a><sup>®</sup>
57: (<a href="http://www.csail.mit.edu/"><acronym title="Massachusetts Institute of Technology">MIT</acronym></a>,
58: <a href="http://www.ercim.org/"><acronym title="European Research Consortium for Informatics and Mathematics">ERCIM</acronym></a>,
59: <a href="http://www.keio.ac.jp/">Keio</a>), All Rights Reserved. W3C
60: <a href="http://www.w3.org/Consortium/Legal/ipr-notice#Legal_Disclaimer">liability</a>,
61: <a href="http://www.w3.org/Consortium/Legal/ipr-notice#W3C_Trademarks">trademark</a>
62: and
63: <a href="http://www.w3.org/Consortium/Legal/copyright-documents">document
64: use</a> rules apply.</p>
1.1 avankest 65: </div>
1.12 avankest 66:
1.1 avankest 67: <hr>
1.12 avankest 68:
1.1 avankest 69: <h2 class="no-num no-toc" id="specabstract">Abstract</h2>
1.10 avankest 70:
1.22 avankest 71: <p>The <code title="">XMLHttpRequest</code> Object specification defines an
72: <abbr title="Application Programming Interface">API</abbr> that provides
73: scripted client functionality for transferring data between a client and a
74: server.</p>
1.12 avankest 75:
1.1 avankest 76: <h2 class="no-num no-toc" id="sotd">Status of this Document</h2>
1.12 avankest 77:
1.1 avankest 78: <p><em>This section describes the status of this document at the time of its
1.36 avankest 79: publication. Other documents may supersede this document. A list of current
80: W3C publications and the latest revision of this technical report can be
81: found in the <a href="http://www.w3.org/TR/">W3C technical reports index</a>
1.117 avankest 82: at http://www.w3.org/TR/.</em></p>
1.36 avankest 83:
1.63 avankest 84: <!-- change back to Last Call -->
1.127 avankest 85: <p>This is the [DATE: 3 August 2002] <strong>Editor's</strong> <!--Working-->
86: Draft of The <code title="">XMLHttpRequest</code> Object specification. Please
87: send comments to
1.47 avankest 88: <a href="mailto:public-webapi@w3.org">public-webapi@w3.org</a>
89: (<a href="http://lists.w3.org/Archives/Public/public-webapi/">archived</a>)
90: with either <samp>[XHR]</samp> or <samp title="">[XMLHttpRequest]</samp> at
1.63 avankest 91: the start of the subject line<!-- by 2 April 2007-->.</p>
1.51 avankest 92:
1.47 avankest 93: <p>This document is produced by the
94: <a href="http://www.w3.org/2006/webapi/">Web API Working Group</a>, part of
95: the <a href="http://www.w3.org/2006/rwc/Activity">Rich Web Clients
96: Activity</a> in the W3C <a href="http://www.w3.org/Interaction/">Interaction
1.51 avankest 97: Domain</a>. Changes made to this document can be found in the
1.47 avankest 98: <a href="http://dev.w3.org/cvsweb/2006/webapi/XMLHttpRequest/Overview.html">W3C
1.117 avankest 99: public CVS server</a>.</p>
1.12 avankest 100:
1.1 avankest 101: <p>Publication as a Working Draft does not imply endorsement by the W3C
1.36 avankest 102: Membership. This is a draft document and may be updated, replaced or
103: obsoleted by other documents at any time. It is inappropriate to cite this
104: document as other than work in progress.</p>
1.12 avankest 105:
1.1 avankest 106: <p>This document was produced by a group operating under the
1.36 avankest 107: <a href="http://www.w3.org/Consortium/Patent-Policy-20040205/">5 February
1.52 avankest 108: 2004 W3C Patent Policy</a>. W3C maintains a
1.36 avankest 109: <a rel="disclosure" href="http://www.w3.org/2004/01/pp-impl/38482/status">public
110: list of any patent disclosures</a> made in connection with the deliverables
111: of the group; that page also includes instructions for disclosing a patent.
112: An individual who has actual knowledge of a patent which the individual
113: believes contains
114: <a href="http://www.w3.org/Consortium/Patent-Policy-20040205/#def-essential">Essential
115: Claim(s)</a> must disclose the information in accordance with
116: <a href="http://www.w3.org/Consortium/Patent-Policy-20040205/#sec-Disclosure">section
117: 6 of the W3C Patent Policy</a>.</p>
1.12 avankest 118:
1.1 avankest 119: <h2 class="no-num no-toc" id="toc">Table of Contents</h2>
1.21 avankest 120:
1.1 avankest 121: <!--toc-->
1.12 avankest 122:
1.1 avankest 123: <h2 id="introduction">Introduction</h2>
1.12 avankest 124:
1.1 avankest 125: <p><em>This section is non-normative.</em></p>
1.12 avankest 126:
1.33 avankest 127: <p>The <code>XMLHttpRequest</code> object implements an interface exposed by
128: a scripting engine that allows scripts to perform HTTP client functionality,
1.22 avankest 129: such as submitting form data or loading data from a server.</p>
1.24 avankest 130:
1.1 avankest 131: <p>The name of the object is <code>XMLHttpRequest</code> for compatibility
1.127 avankest 132: with the Web, though each component of this name is potentially misleading.
1.39 avankest 133: First, the object supports any text based format, including XML. Second, it
134: can be used to make requests over both HTTP and HTTPS (some implementations
135: support protocols in addition to HTTP and HTTPS, but that functionality is
136: not covered by this specification). Finally, it supports "requests" in a
137: broad sense of the term as it pertains to HTTP; namely all activity involved
138: with HTTP requests or responses for the defined HTTP methods.</p>
1.12 avankest 139:
1.1 avankest 140: <h3 id="examples">Examples of Usage</h3>
1.12 avankest 141:
1.1 avankest 142: <p><em>This section is non-normative.</em></p>
1.12 avankest 143:
1.37 avankest 144: <p>Some [<cite><span>ECMAScript</span></cite>] examples
1.32 avankest 145: are listed in the specification. In addition, you can find some below.</p>
1.14 avankest 146:
147: <div class="example">
148: <p>Some simple code to do something with data from an XML document fetched
1.22 avankest 149: over the network:</p>
1.16 avankest 150:
1.58 avankest 151: <pre><code>function test(data) {
1.14 avankest 152: // taking care of data
153: }
154:
155: function handler() {
1.117 avankest 156: if(this.readyState == 4 && this.status == 200) {
1.14 avankest 157: // so far so good
1.117 avankest 158: if(this.responseXML != null && this.responseXML.getElementById('test').firstChild.data)
159: // success!
1.14 avankest 160: test(this.responseXML.getElementById('test').firstChild.data);
161: else
162: test(null);
1.117 avankest 163: } else if (this.readyState == 4 && this.status != 200) {
1.14 avankest 164: // fetched the wrong page or network error...
165: test(null);
166: }
167: }
1.12 avankest 168:
1.14 avankest 169: var client = new XMLHttpRequest();
170: client.onreadystatechange = handler;
171: client.open("GET", "test.xml");
1.58 avankest 172: client.send();</code></pre>
1.16 avankest 173:
1.56 avankest 174: <p>If you just want to log a message to the server:</p>
1.16 avankest 175:
1.58 avankest 176: <pre><code>function log(message) {
1.14 avankest 177: var client = new XMLHttpRequest();
1.56 avankest 178: client.open("POST", "/log");
1.57 avankest 179: client.setRequestHeader("Content-Type", "text/plain;charset=UTF-8");
1.14 avankest 180: client.send(message);
1.58 avankest 181: }</code></pre>
1.16 avankest 182:
1.14 avankest 183: <p>Or if you want to check the status of a document on the server:</p>
1.16 avankest 184:
1.58 avankest 185: <pre><code>function fetchStatus(address) {
1.14 avankest 186: var client = new XMLHttpRequest();
187: client.onreadystatechange = function() {
188: // in case of network errors this might not give reliable results
189: if(this.readyState == 4)
190: returnStatus(this.status);
191: }
192: client.open("HEAD", address);
193: client.send();
1.58 avankest 194: }</code></pre>
1.14 avankest 195: </div>
1.12 avankest 196:
1.1 avankest 197: <h3 id="conformance">Conformance</h3>
1.12 avankest 198:
1.27 avankest 199: <p>Everything in this specification is normative except for diagrams,
200: examples, notes and sections marked non-normative.</p>
1.12 avankest 201:
1.1 avankest 202: <p>The key words <em class="ct">must</em>, <em class="ct">must not</em>,
1.74 avankest 203: <em class="ct">should</em> and <em class="ct">may</em> in this document are
204: to be interpreted as described in RFC 2119.
205: [<cite><span>RFC2119</span></cite>]</p>
1.12 avankest 206:
1.1 avankest 207: <p>This specification defines the following classes of products:</p>
1.12 avankest 208:
1.1 avankest 209: <dl>
1.74 avankest 210: <dt><dfn id="conforming-user-agent">Conforming user agent</dfn></dt>
1.24 avankest 211:
1.74 avankest 212: <dd>
213: <p>A user agent <em class="ct">must</em> behave as described in this
1.106 avankest 214: specification in order to be considered conformant.</p>
1.95 avankest 215:
1.140 avankest 216: <p>If the user agent is not a conforming XML user agent the <span>XML
217: response entity body</span> <em class="ct">must</em> (always) be
218: <code>null</code>.</p>
219:
220: <p>User agents <em class="ct">may</em> implement algorithms given in
221: this specification in any way desired, so long as the end result is
222: indistinguishable from the result that would be obtained by the
223: specification's algorithms.</p>
1.110 avankest 224:
1.95 avankest 225: <p class="note">This specification uses both the terms "conforming user
226: agent(s)" and "user agent(s)" to refer to this product class.</p>
1.74 avankest 227: </dd>
1.110 avankest 228:
1.94 avankest 229: <dt><dfn id="conforming-xml-user-agent">Conforming XML user agent</dfn></dt>
1.110 avankest 230:
1.140 avankest 231: <dd><p>A user agent that is both a <span>conforming user agent</span> and
232: a conforming XML processor that reports violations of namespace
233: well-formedness. [<cite><span>XML</span></cite>]
234: [<cite><span>XMLNS</span></cite>]</p></dd>
1.1 avankest 235: </dl>
1.32 avankest 236:
1.30 avankest 237: <h4 id="dependencies">Dependencies</h4>
1.33 avankest 238:
1.29 avankest 239: <p>This specification relies on several underlying specifications.</p>
240: <dl>
241: <dt>DOM</dt>
1.33 avankest 242:
1.29 avankest 243: <dd>
1.126 avankest 244: <p>A <span title="conforming user agent">conforming user agent</span>
1.95 avankest 245: <em class="ct">must</em> support some version of DOM Events and DOM Core,
246: because this specification uses some of the features defined in those
247: specifications. [<cite><span>DOM3Events</span></cite>]
248: [<cite><span>DOM3Core</span></cite>]</p>
249:
250: <p>It <em class="ct">must</em> also support some version of the Window
251: Object because some of the functionality in this specification relies on
252: it. [<cite><span>Window</span></cite>]</p>
1.29 avankest 253: </dd>
254:
255: <dt>HTTP</dt>
1.33 avankest 256:
1.29 avankest 257: <dd>
1.126 avankest 258: <p>A <span title="conforming user agent">conforming user agent</span>
259: <em class="ct">must</em> support some version of the HTTP protocol. It
260: <em class="ct">should</em> support any HTTP method that matches the
261: <span><code>Method</code> production</span> and <em class="ct">must</em> at
262: least support the following methods:</p>
1.58 avankest 263:
264: <ul>
265: <li><code>GET</code></li>
266: <li><code>POST</code></li>
267: <li><code>HEAD</code></li>
268: <li><code>PUT</code></li>
269: <li><code>DELETE</code></li>
270: <li><code>OPTIONS</code></li>
271: </ul>
1.135 avankest 272:
1.58 avankest 273: <p>Other requirements regarding HTTP are made throughout the
1.39 avankest 274: specification. [<cite><span>RFC2616</span></cite>]</p>
1.29 avankest 275: </dd>
276: </dl>
1.12 avankest 277:
1.80 avankest 278: <h4 id="terminology">Terminology</h4>
1.12 avankest 279:
1.80 avankest 280: <p>There is a <dfn id="case-insensitive-match">case-insensitive match</dfn>
1.101 avankest 281: of strings <var>s1</var> and <var>s2</var> if after uppercasing both strings
1.100 avankest 282: (by mapping a-z to A-Z) they are identical.</p>
1.144 avankest 283:
1.141 avankest 284: <p>Two URIs are <dfn id="same-origin">same-origin</dfn> if after
285: performing scheme-based normalization on both URIs as described in section
1.143 avankest 286: 5.3.3 of RFC 3987 the scheme, ihost and port components are
1.145 ! avankest 287: identical. If either URI does not not have an ihost component they are not
! 288: same-origin. [<cite><span>RFC3987</span></cite>]</p>
1.80 avankest 289:
290: <h4 id="extensibility">Extensibility</h4>
1.12 avankest 291:
1.81 avankest 292: <p>Extensions of the API defined by this specification are <em>strongly
1.22 avankest 293: discouraged</em>. User agents, Working Groups and other interested parties
1.33 avankest 294: should discuss extensions on a relevant public forum, preferably
1.22 avankest 295: <a href="mailto:public-webapi@w3.org">public-webapi@w3.org</a>.</p>
1.12 avankest 296:
297: <h2 id="xmlhttprequest">The <code title="">XMLHttpRequest</code> Object</h2>
298:
1.58 avankest 299: <p>The <code>XMLHttpRequest</code> object can be used by scripts to
1.22 avankest 300: programmatically connect to their originating server via HTTP.</p>
1.12 avankest 301:
1.1 avankest 302: <p>Objects implementing the <code>XMLHttpRequest</code> interface
1.22 avankest 303: <em class="ct">must</em> also implement the <code>EventTarget</code>
1.58 avankest 304: interface. [<cite><span>DOM3Events</span></cite>]</p>
1.12 avankest 305:
1.58 avankest 306: <p>Objects implementing the <code title="">Window</code> interface
307: <em class="ct">must</em> provide an <code title="">XMLHttpRequest()</code>
308: constructor. [<cite><span>Window</span></cite>]</p>
1.12 avankest 309:
1.1 avankest 310: <div class="example">
1.58 avankest 311: <p>In ECMAScript this can be used as follows:</p>
312:
313: <pre><code>var client = new XMLHttpRequest();</code></pre>
1.1 avankest 314: </div>
1.12 avankest 315:
1.58 avankest 316: <p>When the <code title="">XMLHttpRequest()</code> constructor is invoked a
317: persistent pointer to the associated <code title="">Window</code> object
318: <em class="ct">must</em> be stored on the newly created object. This is the
1.25 avankest 319: <dfn title="Window pointer" id="window-pointer"><code>Window</code>
1.58 avankest 320: pointer</dfn>. The associated <code title="">Window</code> object is the one
1.127 avankest 321: of which the <code title="">XMLHttpRequest</code> constructor was invoked.
322: This <span title="Window pointer">pointer</span> <em class="ct">must</em>
323: persist even if the browsing context in which the <code title="">Window</code>
324: is located is destroyed (by removing it from a parent browsing context, for
325: instance).</p>
1.25 avankest 326:
1.37 avankest 327: <p>The term browsing context is defined by the <cite>Window Object
328: 1.0</cite> specification. [<cite><span>Window</span></cite>]</p>
1.27 avankest 329:
330: <!-- XXX if the document object changes in the browsing context you get an
1.33 avankest 331: exception in some implementations. -->
1.27 avankest 332:
1.58 avankest 333: <div class="example">
1.65 avankest 334: <p>If <var><code>win</code></var> is a <code title="">Window</code> object
335: <var><code>client</code></var> will have a pointer to
336: <var><code>win</code></var> in the following example:</p>
1.58 avankest 337:
1.65 avankest 338: <pre><code>var client = new win.XMLHttpRequest()</code></pre>
1.58 avankest 339: </div>
1.12 avankest 340:
1.58 avankest 341: <pre class="idl">interface <dfn id="xmlhttprequest-object">XMLHttpRequest</dfn> {
342: // event handler
1.70 avankest 343: attribute EventListener <span>onreadystatechange</span>;
1.58 avankest 344:
345: // state
1.71 avankest 346: const unsigned short <span title="UNSENT state">UNSENT</span> = 0;
1.134 avankest 347: const unsigned short <span title="OPENED state">OPENED</span> = 1;
1.123 avankest 348: const unsigned short <span title="HEADERS_RECEIVED state">HEADERS_RECEIVED</span> = 2;
1.86 avankest 349: const unsigned short <span title="LOADING state">LOADING</span> = 3;
1.117 avankest 350: const unsigned short <span title="DONE state">DONE</span> = 4;
1.70 avankest 351: readonly attribute unsigned short <span>readyState</span>;
1.58 avankest 352:
353: // request
1.70 avankest 354: void <span>open</span>(in DOMString <var>method</var>, in DOMString <var>url</var>);
355: void <span>open</span>(in DOMString <var>method</var>, in DOMString <var>url</var>, in boolean <var>async</var>);
356: void <span>open</span>(in DOMString <var>method</var>, in DOMString <var>url</var>, in boolean <var>async</var>, in DOMString <var>user</var>);
357: void <span>open</span>(in DOMString <var>method</var>, in DOMString <var>url</var>, in boolean <var>async</var>, in DOMString <var>user</var>, in DOMString <var>password</var>);
358: void <span>setRequestHeader</span>(in DOMString <var>header</var>, in DOMString <var>value</var>);
359: void <span>send</span>();
360: void <span>send</span>(in DOMString <var>data</var>);
361: void <span>send</span>(in Document <var>data</var>);
362: void <span>abort</span>();
1.58 avankest 363:
364: // response
1.70 avankest 365: DOMString <span>getAllResponseHeaders</span>();
366: DOMString <span>getResponseHeader</span>(in DOMString <var>header</var>);
367: readonly attribute DOMString <span>responseText</span>;
368: readonly attribute Document <span>responseXML</span>;
369: readonly attribute unsigned short <span>status</span>;
370: readonly attribute DOMString <span>statusText</span>;
1.1 avankest 371: };</pre>
1.8 avankest 372:
1.58 avankest 373: <p>The <code>XMLHttpRequest</code> object can be in five states:
1.71 avankest 374: <span title="UNSENT state">UNSENT</span>,
1.134 avankest 375: <span title="OPENED state">OPENED</span>,
1.123 avankest 376: <span title="HEADERS_RECEIVED state">HEADERS_RECEIVED</span>,
1.86 avankest 377: <span title="LOADING state">LOADING</span> and
1.79 avankest 378: <span title="DONE state">DONE</span>. The current state is exposed through
379: the <code>readyState</code> attribute. The method definitions below define
380: when a state transition takes place.</p>
1.58 avankest 381:
382: <p>When constructed, the <code>XMLHttpRequest</code> object
1.71 avankest 383: <em class="ct">must</em> be in the UNSENT state. This state is represented
1.134 avankest 384: by the <dfn id="unsent-state" title="UNSENT state"><code>UNSENT</code></dfn>
1.58 avankest 385: constant, whose value is <code>0</code>.</p>
386:
1.134 avankest 387: <p>The OPENED state is the state of the object when the <code>open()</code>
1.92 avankest 388: method has been successfully invoked. During this state request headers can
1.58 avankest 389: be set using <code>setRequestHeader()</code> and the request can be made
390: using <code>send()</code>. This state is represented by the
1.134 avankest 391: <dfn id="opened-state" title="OPENED state"><code>OPENED</code></dfn> constant,
1.131 avankest 392: whose value is <code>1</code>.</p>
1.58 avankest 393:
1.134 avankest 394: <p>The OPENED state has an associated <dfn id="send-flag"><code>send()</code>
1.104 avankest 395: flag</dfn> which can be either "true" or "false". The initial value of the
396: <code title="">send()</code> flag is "false".</p>
1.87 avankest 397:
1.123 avankest 398: <p>The HEADERS_RECEIVED state is the state of the object when all response
399: headers have been received. This state is represented by the
1.131 avankest 400: <dfn id="headers-received-state" title="HEADERS_RECEIVED state"><code>HEADERS_RECEIVED</code></dfn>
1.123 avankest 401: constant, whose value is <code>2</code>.</p>
402:
403: <p>The LOADING state is the state of the object when the response entity body
404: is being received. This state is represented by the
1.131 avankest 405: <dfn id="loading-state" title="LOADING state"><code>LOADING</code></dfn> constant,
1.86 avankest 406: whose value is <code>3</code>.</p>
1.58 avankest 407:
1.79 avankest 408: <p>The DONE state is the state of the object when either the data transfer
1.58 avankest 409: has been completed or something went wrong during the transfer (infinite
410: redirects for instance). This state is represented by the
1.131 avankest 411: <dfn id="done-state" title="DONE state"><code>DONE</code></dfn> constant,
412: whose value is <code>4</code>.</p>
1.90 avankest 413:
1.124 avankest 414: <p>The DONE state has an associated <dfn id="error-flag">error flag</dfn>
415: which can be either "true" or "false". The initial value of the error flag is
416: "false".</p>
417:
1.88 avankest 418: <p>The <dfn id="response-entity-body">response entity body</dfn> is the
419: fragment of the <span>entity body</span> received so far (LOADING state) or
420: the complete entity body (DONE state). If there is no entity body the
421: response entity body is "null".</p>
422:
423: <p>The <dfn id="text-response-entity-body">text response entity body</dfn>
1.107 avankest 424: is either a <code>DOMString</code> representing the <span>response entity
1.126 avankest 425: body</span> or <code>null</code>. The text response entity body is the return
426: value of the following algorithm:</p>
1.90 avankest 427:
1.88 avankest 428: <ol>
1.107 avankest 429: <li><p>If the response entity body is "null" return <code>null</code> and
430: terminate these steps.</p>
1.90 avankest 431:
1.113 avankest 432: <li><p>Let <var>charset</var> be "null".</p></li>
1.90 avankest 433:
434: <li><p>If there is no <code>Content-Type</code> header or there is a
435: <code>Content-Type</code> header which contains a MIME type that is
1.116 avankest 436: <code>text/xml</code>, <code>application/xml</code> or ends in
437: <code title="">+xml</code> (ignoring any parameters) use the rules set forth
1.126 avankest 438: in the XML specifications to determine the character encoding. Let
1.116 avankest 439: <var>charset</var> be the determined character encoding.</p></li>
1.90 avankest 440:
1.145 ! avankest 441: <li><p>If there is a <code>Content-Type</code> header which contains a
! 442: <code>text/html</code> MIME type follow the rules set forth in the
! 443: HTML 5 specification to determine the character encoding. Let
! 444: <var>charset</var> be the determined character encoding.
! 445: [<cite><span>HTML5</span></cite>]</p></li>
1.118 avankest 446:
1.115 avankest 447: <li>
1.140 avankest 448: <p>If the MIME type specified by the <code>Content-Type</code> header
449: contains a <code>charset</code> parameter and <var>charset</var> is
450: "null" let <var>charset</var> be the value of that parameter.</p>
1.118 avankest 451:
1.145 ! avankest 452: <p class="note">The algorithms described by the XML and HTML
! 453: specifications already take <code>Content-Type</code> into account.</p>
1.115 avankest 454: </li>
1.118 avankest 455:
1.111 avankest 456: <li>
457: <!-- This stuff is copied from HTML5. Thanks Hixie! -->
1.113 avankest 458: <p>If <var>charset</var> is "null" then, for each of the rows in the
1.127 avankest 459: following table, starting with the first one and going down, if the first
460: bytes of <var>bytes</var> match the bytes given in the first column, then
461: let <var>charset</var> be the encoding given in the cell in the second
462: column of that row. If there is no match <var>charset</var> remains
463: "null".</p>
1.117 avankest 464:
465: <table>
466: <thead>
467: <tr>
1.111 avankest 468: <th>Bytes in Hexadecimal
469: <th>Description
1.117 avankest 470: <tbody>
471: <tr>
1.111 avankest 472: <td>00 00 FE FF
1.117 avankest 473: <td>UTF-32BE BOM
474: <tr>
475: <td>FF FE 00 00
476: <td>UTF-32LE BOM
477: <tr>
478: <td>FE FF
479: <td>UTF-16BE BOM
480: <tr>
481: <td>FF FE
482: <td>UTF-16LE BOM
483: <tr>
484: <td>EF BB BF
485: <td>UTF-8 BOM<!-- nobody uses this
486: <tr>
487: <td>DD 73 66 73
488: <td>UTF-EBCDIC
489: -->
490: </table>
1.111 avankest 491: </li>
492:
1.113 avankest 493: <li><p>If <var>charset</var> is "null" let <var>charset</var> be
494: UTF-8.</p></li>
495:
1.107 avankest 496: <li><p>Return the result of decoding the response entity body using
497: <var>charset</var>. Or, if that fails, return <code>null</code>.</p></li>
1.88 avankest 498: </ol>
1.90 avankest 499:
1.88 avankest 500: <p>The <dfn id="xml-response-entity-body">XML response entity body</dfn> is
1.107 avankest 501: either a <code>Document</code> representing the <span>response entity
1.126 avankest 502: body</span> or <code>null</code>. The XML response entity body is the return
503: value of the following algorithm:</p>
1.90 avankest 504:
1.88 avankest 505: <ol>
1.107 avankest 506: <li><p>If the response entity body is "null" terminate these steps and
507: return <code>null</code>.</p></li>
1.88 avankest 508:
1.103 avankest 509: <li><p>If a <code>Content-Type</code> is present and it does not contain a
510: MIME type (ignoring any parameters) that is <code>text/xml</code>,
1.116 avankest 511: <code>application/xml</code> or ends in <code title="">+xml</code> terminate
512: these steps and return <code>null</code>. (Do not terminate these steps if
513: there is no <code>Content-Type</code> header at all.)</p></li>
1.88 avankest 514:
1.128 avankest 515: <li>
516: <p>Parse the response entity body into a document tree following the
517: rules from the XML specifications. Let the result be <var>parsed
518: document</var>. If this fails (unsupported character encoding, namespace
519: well-formedness error et cetera) terminate these steps return
520: <code>null</code>. [<cite><span>XML</span></cite>]
521: [<cite><span>XMLNS</span></cite>]</p>
522:
523: <p class="note">Scripts in the resulting document tree will not be executed,
524: resources referenced will not be loaded and no associated XSLT will be
525: applied.</p>
526: </li>
1.88 avankest 527:
1.96 avankest 528: <li><p>Return an object implementing the <code>Document</code>
1.88 avankest 529: interface representing the <var>parsed document</var>.</p></li>
530: </ol>
1.58 avankest 531:
1.5 avankest 532: <dl>
1.131 avankest 533: <dt><dfn id="onreadystatechange"><code>onreadystatechange</code></dfn>
1.39 avankest 534: of type <code>EventListener</code></dt>
1.12 avankest 535:
1.1 avankest 536: <dd>
537: <p>An attribute that takes an <code>EventListener</code> as value that
1.58 avankest 538: <em class="ct">must</em> be invoked along with any other appropriate event
539: listeners that are registered on this object when a
1.87 avankest 540: <code>readystatechange</code> event is dispatched on it during the
541: bubbling phase. Its initial value <em class="ct">must</em> be
542: <code>null</code>.</p>
1.1 avankest 543: </dd>
1.12 avankest 544:
1.131 avankest 545: <dt><dfn id="readystate"><code>readyState</code></dfn> of type
1.22 avankest 546: <code>unsigned short</code>, readonly</dt>
1.12 avankest 547:
1.1 avankest 548: <dd>
1.58 avankest 549: <p>The attribute <em class="ct">must</em> be the value of the constant
550: corresponding to the object's current state.</p>
1.1 avankest 551: </dd>
1.12 avankest 552:
1.131 avankest 553: <dt><dfn id="open" title="open"><code>open(<var>method</var>,
1.22 avankest 554: <var>url</var>, <var>async</var>, <var>user</var>,
555: <var>password</var>)</code></dfn>, method</dt>
1.12 avankest 556:
1.1 avankest 557: <dd>
1.58 avankest 558: <p>When invoked, the user agent <em class="ct">must</em> follow the
1.96 avankest 559: following steps (unless otherwise indicated):</p>
1.58 avankest 560:
561: <ol>
1.97 avankest 562: <li><p>If the <var>method</var> argument does not match the
1.58 avankest 563: <dfn><code>Method</code> production</dfn> defined in section 5.1.1 of RFC
1.98 avankest 564: 2616 raise a <code>SYNTAX_ERR</code> exception and terminate these steps.
1.58 avankest 565: [<cite><span>RFC2616</span></cite>]</p></li>
566:
567: <li><p>If the given <var>method</var> is not supported for security
568: reasons the user agent <em class="ct">should</em> raise a
1.98 avankest 569: <code>SECURITY_ERR</code> exception and terminate these steps.</p></li>
1.58 avankest 570:
571: <li><p>Let <var>stored method</var> be <var>method</var>.</p></li>
572:
1.80 avankest 573: <li><p>If <var>method</var>
574: <span title="case-insensitive match">case-insensitively matches</span>
575: <code>GET</code>, <code>POST</code>, <code>HEAD</code>, <code>PUT</code>,
1.96 avankest 576: <code>DELETE</code> or <code>OPTIONS</code> convert it to its uppercase
577: equivalent (by mapping a-z to A-Z) and let <var>stored method</var> be
578: the result.</p></li>
1.68 avankest 579: <!-- WebKit (and supposedly Firefox) also uppercase: CONNECT, COPY,
580: INDEX, LOCK, M-POST, MKCOL, MOVE, PROPFIND, PROPPATCH, TRACE and UNLOCK.
581: Not sure if TRACE and CONNECT are worth it though. They raise a
582: SECURITY_ERR exception anyway... -->
1.58 avankest 583:
584: <li><p>Drop the fragment identifier (if any) from <var>url</var> and let
585: <var>stored url</var> be the result of that operation.</p></li>
586:
1.96 avankest 587: <li><p>If <var>stored url</var> is a relative reference resolve it using
588: the current value of the <code>baseURI</code> attribute of the
589: <code>Document</code> object currently associated with the
590: <span><code>Window</code> pointer</span>. If this fails raise a
1.98 avankest 591: <code>SYNTAX_ERR</code> exception and terminate these steps.</p></li>
1.58 avankest 592:
1.101 avankest 593: <li><p>If <var>stored url</var> contains an unsupported scheme raise a
594: <code>NOT_SUPPORTED_ERR</code> and terminate these steps.</p></li>
1.110 avankest 595:
1.58 avankest 596: <li><p>If the <code>"user:password"</code> format in the
1.141 avankest 597: <code>userinfo</code> production defined in section 3.2.1 of RFC 3986
598: is not supported for the relevant scheme and <var>stored url</var>
599: contains this format raise a <code>SYNTAX_ERR</code> and terminate
600: these steps. [<cite><span>RFC3986</span></cite>]</p></li>
1.58 avankest 601:
602: <li><p>If <var>stored url</var> contains the <code>"user:password"</code>
603: format let <var>stored user</var> be the user part and <var>stored
604: password</var> be the password part.</p></li>
605:
606: <li><p>If <var>stored url</var> just contains the <code>"user"</code>
607: format let <var>stored user</var> be the user part.</p></li>
608:
1.145 ! avankest 609: <li>
! 610: <p>If <var>stored url</var> is not of the <span>same-origin</span>
! 611: as the origin of the <code>Document</code> object associated with the
! 612: <span><code>Window</code> pointer</span> and is not a
! 613: <code>data:</code> URI the user agent <em class="ct">should</em> raise
! 614: a <code>SECURITY_ERR</code> exception and terminate these steps. The
! 615: term origin is defined by the HTML 5 specification.
! 616: [<cite><span>HTML5</span></cite>]
! 617: [<cite><span>RFC2397</span></cite>]</p>
! 618:
! 619: <p class="note">The above implies that <code>data:</code> URIs are
! 620: always loaded.</p>
! 621: </li>
1.58 avankest 622:
1.145 ! avankest 623: <li><p>Let <var>async</var> be the value of the <var>async</var>
! 624: argument or <code>true</code> if it was omitted.</p></li>
1.58 avankest 625:
1.126 avankest 626: <li><p>If the <var>user</var> argument was not omitted, and its syntax
1.145 ! avankest 627: does not match that specified by the relevant authentication scheme,
! 628: raise a <code>SYNTAX_ERR</code> exception and terminate these
! 629: steps.</p></li>
1.14 avankest 630:
1.58 avankest 631: <li>
632: <p>If the <var>user</var> argument was not omitted and is not
1.145 ! avankest 633: <code>null</code> let <var>stored user</var> be <var>user</var>
! 634: encoded using the encoding specified in the relevant authentication
! 635: scheme or UTF-8 if the scheme fails to specify an encoding.</p>
1.14 avankest 636:
1.58 avankest 637: <p class="note">This step overrides any user that may have been set by
638: the <var>url</var> argument.</p>
639: </li>
1.16 avankest 640:
1.58 avankest 641: <li><p>If the <var>user</var> argument was not omitted and is
642: <code>null</code> remove <var>stored user</var>.</p></li>
1.14 avankest 643:
1.145 ! avankest 644: <li><p>If the <var>password</var> argument was not omitted and its
! 645: syntax does not match that specified by the relevant authentication
! 646: scheme raise a <code>SYNTAX_ERR</code> exception and terminate these
! 647: steps.</p></li>
1.58 avankest 648:
649: <li><p>If the <var>password</var> argument was not omitted and is not
650: <code>null</code> let <var>stored password</var> be <var>password</var>
651: encoded using the encoding specified in the relevant authentication
652: scheme or UTF-8 if the scheme fails to specify an encoding.</p></li>
653:
654: <li><p>If the <var>password</var> argument was not omitted and is
655: <code>null</code> remove <var>stored password</var>.</p></li>
656:
1.108 avankest 657: <li><p><span title="abort send()">Abort the <code>send()</code>
658: algorithm</span>, set <span>response entity body</span> to "null" and
659: reset the list of request headers.<p></li>
1.58 avankest 660:
1.108 avankest 661: <li><p>The user agent <em class="ct">should</em> cancel any network
662: activity for which the object is responsible.</p></li>
1.58 avankest 663: <!-- we can hardly require it... -->
664:
1.145 ! avankest 665: <li><p>Switch the object to the
! 666: <span title="OPENED state">OPENED</span> state, set the
! 667: <span><code>send()</code> flag</span> to "false" and then synchronously
! 668: dispatch a <code>readystatechange</code> event on the object and return
! 669: the method call.</p></li>
1.58 avankest 670: </ol>
1.14 avankest 671:
1.19 avankest 672: <p class="note">A future version or extension of this specification will
1.33 avankest 673: most likely define a way of doing cross-site requests.</p>
1.1 avankest 674: </dd>
1.12 avankest 675:
1.131 avankest 676: <dt><dfn id="setrequestheader" title="setrequestheader"><code>setRequestHeader(<var>header</var>,
1.22 avankest 677: <var>value</var>)</code></dfn>, method</dt>
1.12 avankest 678:
1.5 avankest 679: <dd>
1.45 avankest 680: <p>Each request has a list of request headers with associated values. This
681: method can be used to manipulate those values and set new request
682: headers.</p>
683:
1.58 avankest 684: <p>When invoked, the user agent <em class="ct">must</em> follow the
1.96 avankest 685: following steps (unless otherwise indicated):</p>
1.14 avankest 686:
1.58 avankest 687: <ol>
688: <li><p>If the state of the object is not
1.134 avankest 689: <span title="OPENED state">OPENED</span> raise an
1.98 avankest 690: <code>INVALID_STATE_ERR</code> exception and terminate these
691: steps.</p></li>
1.96 avankest 692:
693: <li><p>If the <span><code>send()</code> flag</span> is "true" raise an
1.98 avankest 694: <code>INVALID_STATE_ERR</code> exception and terminate these
695: steps.</p></li>
1.14 avankest 696:
1.97 avankest 697: <li><p>If the <var>header</var> argument does not match the
1.22 avankest 698: <dfn><code>field-name</code> production</dfn> as defined by section 4.2
1.96 avankest 699: of RFC 2616 or is <code>null</code> raise a <code>SYNTAX_ERR</code>
1.98 avankest 700: exception and terminate these steps.
1.96 avankest 701: [<cite><span>RFC2616</span></cite>]</p></li>
702:
1.98 avankest 703: <li><p>If the <var>value</var> argument is <code>null</code> terminate
704: these steps. (Do not raise an exception.)</li>
1.70 avankest 705: <!-- undefined is to be treated as null here... -->
1.79 avankest 706:
1.97 avankest 707: <li><p>If the <var>value</var> argument does not match the
1.22 avankest 708: <dfn><code>field-value</code> production</dfn> as defined by section 4.2
1.98 avankest 709: of RFC 2616 raise a <code>SYNTAX_ERR</code> and terminate these steps.
1.58 avankest 710: [<cite><span>RFC2616</span></cite>]</p></li>
1.14 avankest 711:
1.32 avankest 712: <li>
1.132 avankest 713: <p>For security reasons, these steps <em class="ct">should</em> be
1.98 avankest 714: terminated if the <var>header</var> argument
1.80 avankest 715: <span title="case-insensitive match">case-insensitively matches</span>
716: one of the following headers:</p>
1.58 avankest 717:
1.32 avankest 718: <ul>
719: <li><code>Accept-Charset</code></li>
720: <li><code>Accept-Encoding</code></li>
1.68 avankest 721: <li><code>Connection</code></li>
1.32 avankest 722: <li><code>Content-Length</code></li>
1.68 avankest 723: <li><code>Content-Transfer-Encoding</code></li>
724: <li><code>Date</code></li>
1.32 avankest 725: <li><code>Expect</code></li>
726: <li><code>Host</code></li>
727: <li><code>Keep-Alive</code></li>
728: <li><code>Referer</code></li>
729: <li><code>TE</code></li>
730: <li><code>Trailer</code></li>
731: <li><code>Transfer-Encoding</code></li>
732: <li><code>Upgrade</code></li>
1.68 avankest 733: <li><code>Via</code></li>
1.32 avankest 734: </ul>
735: </li>
1.132 avankest 736:
737: <li><p>Also for security reasons, these steps <em class="ct">should</em> be
738: terminated if the first six characters of the <var>header</var> argument
739: <span title="case-insensitive match">case-insensitively match</span>
740: <code>Proxy-</code>.</p></li>
1.5 avankest 741:
1.58 avankest 742: <li><p>If the <var>header</var> argument is not in the list of request
1.96 avankest 743: headers append the <var>header</var> with its associated <var>value</var>
1.98 avankest 744: to the list and terminate these steps.</p></li>
1.58 avankest 745:
746: <li><p>If the <var>header</var> argument is in the list of request
1.96 avankest 747: headers either use multiple headers, combine the values or use a
748: combination of those (section 4.2, RFC 2616).
749: [<cite><span>RFC2616</span></cite>]</p></li>
750: <!-- XXX it seems UAs always combine the values -->
1.58 avankest 751: </ol>
1.45 avankest 752:
753: <p class="note">See also the <code>send()</code> method regarding user
1.71 avankest 754: agent header handling for caching, authentication, proxies, and
755: cookies.</p>
1.14 avankest 756:
757: <div class="example">
1.58 avankest 758: <pre><code>// The following script:
1.14 avankest 759: var client = new XMLHttpRequest();
760: client.open('GET', 'demo.cgi');
761: client.setRequestHeader('X-Test', 'one');
762: client.setRequestHeader('X-Test', 'two');
763: client.send();
764:
765: // ...would result in the following header being sent:
766: ...
767: X-Test: one, two
1.58 avankest 768: ...</code></pre>
1.14 avankest 769: </div>
1.5 avankest 770: </dd>
1.12 avankest 771:
1.131 avankest 772: <dt><dfn id="send" title="send"><code>send(<var>data</var>)</code></dfn>,
1.22 avankest 773: method</dt>
1.12 avankest 774:
1.17 avankest 775: <dd>
1.58 avankest 776: <p>The <code>send()</code> method initiates the request and its optional
1.106 avankest 777: argument provides the <span>entity body</span>. Authors are strongly
778: encouraged to ensure that they have specified the
779: <code>Content-Type</code> header via <code>setRequestHeader()</code>
780: before invoking <code>send()</code> with a non-<code>null</code>
781: <var>data</var> argument.</p>
1.58 avankest 782:
783: <p>When invoked, the user agent <em class="ct">must</em> follow the
1.108 avankest 784: following steps (unless otherwise noted). Note that this algorithm might
1.126 avankest 785: get aborted if the <code>open()</code> or <code>abort()</code> method is
786: invoked. When the
1.109 avankest 787: <dfn title="abort send()" id="abort-send-algorithm"><code>send()</code>
1.110 avankest 788: algorithm is aborted</dfn> the user agent <em class="ct">must</em>
789: terminate the algorithm after finishing the step it is on.</p>
790:
1.108 avankest 791: <p class="note">The following algorithm can not be aborted through script
792: when <var>async</var> is <code>false</code>. It can only be aborted when
793: <var>async</var> is <code>true</code> and only after the method call has
794: returned.</p>
1.58 avankest 795:
796: <ol>
797: <li><p>If the state of the object is not
1.134 avankest 798: <span title="OPENED state">OPENED</span> raise an
1.98 avankest 799: <code>INVALID_STATE_ERR</code> exception and terminate these
800: steps.</p></li>
1.96 avankest 801:
802: <li><p>If the <span><code>send()</code> flag</span> is "true" raise an
1.98 avankest 803: <code>INVALID_STATE_ERR</code> exception and terminate these
804: steps.</p></li>
1.58 avankest 805:
1.102 avankest 806: <li><p>If <var>async</var> is <code>true</code> set the
1.103 avankest 807: <span><code>send()</code> flag</span> to "true".</p></li>
808:
1.58 avankest 809: <li>
810: <p>If the <var>data</var> argument has not been omitted and is not
1.145 ! avankest 811: <code>null</code> use it for the <dfn id="entity-body">entity
! 812: body</dfn> as defined by section 7.2 of RFC 2616 observing the
! 813: following rules: [<cite><span>RFC2616</span></cite>]</p>
1.58 avankest 814:
1.119 avankest 815: <dl class="switch">
1.58 avankest 816: <dt><var>data</var> is a <code>DOMString</code></dt>
817:
1.96 avankest 818: <dd><p>Encode <var>data</var> using UTF-8 for transmission.</p></dd>
1.58 avankest 819:
820: <dt><var>data</var> is a <code>Document</code>
821:
822: <dd>
1.96 avankest 823: <p>Serialize <var>data</var> into a namespace well-formed XML document
824: and encoded using the encoding given by
825: <code><var>data</var>.xmlEncoding</code>, if specified, or UTF-8
826: otherwise. Or, if this fails because the <code>Document</code>
827: cannot be serialized act as if <var>data</var> is
828: <code>null</code>.</p>
829:
830: <p>If no <code>Content-Type</code> header is in the list of request
1.126 avankest 831: headers append a <code>Content-Type</code> header to the list of request
832: headers with a value of <code>application/xml</code>.</p>
1.58 avankest 833:
834: <p class="note">Subsequent changes to the <code>Document</code> have
835: no effect on what is submitted.</p>
836: </dd>
837:
838: <dt><var>data</var> is not a <code>DOMString</code> or
839: <code>Document</code></dt>
840:
1.96 avankest 841: <dd><p>Use the stringification mechanisms of the host language on
842: <var>data</var> and treat the result as if <var>data</var> is a
843: <code>DOMString</code>. Or, if this fails, act as if <var>data</var> is
844: <code>null</code>.</p></dd>
1.58 avankest 845: </dl>
846:
1.126 avankest 847: <p>If the <var>data</var> argument has been omitted, or is
848: <code>null</code>, no entity body is used in the request.</p>
1.58 avankest 849: </li>
850:
1.71 avankest 851: <li><p>Make a request to <var>stored url</var>, using HTTP method
852: <var>stored method</var>, user <var>stored user</var> (if provided) and
853: password <var>stored password</var> (if provided), taking into account
854: the entity body, list of request headers and the rules listed directly
855: after this set of steps.</p></li>
1.60 avankest 856:
1.67 avankest 857: <li>
1.96 avankest 858: <p>Synchronously dispatch a <code>readystatechange</code> event on the
859: object.</p>
1.67 avankest 860:
1.96 avankest 861: <p class="note">The state of the object does not change. The event is
862: dispatched for historical reasons.</p>
1.67 avankest 863: </li>
864:
1.102 avankest 865: <li><p>If <var>async</var> is <code>true</code> return the
1.98 avankest 866: <code>send()</code> method call. (Do not terminate the steps in the
867: algorithm though.)</p></li>
1.58 avankest 868:
1.117 avankest 869: <li>
1.123 avankest 870: <p>While downloading the resource the following rules are to be
871: observed.</p>
872:
1.119 avankest 873: <dl class="switch">
1.118 avankest 874: <dt>If the response is an HTTP redirect</dt>
875:
876: <dd>
1.145 ! avankest 877: <p>If the redirect does not violate security (it is
! 878: <span>same-origin</span> for instance) or infinite loop precautions
! 879: and the scheme is supported transparently follow the redirect and go
1.118 avankest 880: to the start of this step.</p>
1.145 ! avankest 881:
! 882: <p class="note">HTTP places requirements on the user agent regarding
! 883: the preservation of the request method and entity body during
! 884: redirects, and also requires users to be notified of certain kinds
! 885: of automatic redirections.</p>
1.118 avankest 886: <!-- Arguably HTTP should be fixed for the latter case. No browser
887: follows that as far as I know. -->
888:
889: <p>Otherwise, follow the following set of steps:</p>
1.145 ! avankest 890:
1.118 avankest 891: <ol>
1.124 avankest 892: <li><p>Set the <span>response entity body</span> to "null", the
893: <span>error flag</span> to "true" and reset the list of request
894: headers.</p></li>
1.118 avankest 895:
896: <li><p>Synchronously switch the state to
897: <span title="DONE state">DONE</span>.</p></li>
898:
899: <li><p>If <var>async</var> is set to <code>false</code> raise a
900: <code>NETWORK_ERR</code> exception and terminate the overall
901: algorithm.</p></li>
902:
903: <li><p>Synchronously dispatch a <code>readystatechange</code> event on
904: the object.</p></li>
905:
906: <li><p>Terminate the overall algorithm.</p></li>
907: </ol>
908:
909: <p class="note">It is likely that a future version of the
910: <code>XMLHttpRequest</code> object will dispatch an <code>error</code>
911: event here as well.</p>
912: </dd>
1.117 avankest 913:
1.121 avankest 914:
1.118 avankest 915: <dt>If the user cancels the download</dt>
1.58 avankest 916:
1.118 avankest 917: <dd>
918: <p>Run the following set of steps:</p>
1.60 avankest 919:
1.118 avankest 920: <ol>
1.124 avankest 921: <li><p>Set the <span>response entity body</span> to "null", the
922: <span>error flag</span> to "true" and reset the list of request
923: headers.</p></li>
1.118 avankest 924:
925: <li><p>Synchronously switch the state to
926: <span title="DONE state">DONE</span>.</p></li>
927:
1.121 avankest 928: <li><p>If <var>async</var> is set to <code>false</code> raise an
929: <code>ABORT_ERR</code> exception and terminate the overall
1.118 avankest 930: algorithm.</p></li>
931:
932: <li><p>Synchronously dispatch a <code>readystatechange</code> event on
933: the object.</p></li>
934:
935: <li><p>Terminate the overall algorithm.</p></li>
936: </ol>
1.121 avankest 937:
1.118 avankest 938: <p class="note">It is likely that a future version of the
1.121 avankest 939: <code>XMLHttpRequest</code> object will dispatch an
940: <code title="">abort</code> event here as well.</p>
1.118 avankest 941: </dd>
1.60 avankest 942:
1.121 avankest 943:
1.118 avankest 944: <dt>In case of network errors</dt>
1.60 avankest 945:
1.118 avankest 946: <dd>
1.126 avankest 947: <p>In case of DNS errors, or other type of network errors, run the
948: following set of steps. <span class="note">This does not include HTTP
949: responses that indicate some type of error, such as HTTP status code
950: 410.</span></p>
1.118 avankest 951:
952: <ol>
1.124 avankest 953: <li><p>Set the <span>response entity body</span> to "null", the
954: <span>error flag</span> to "true" and reset the list of request
955: headers.</p></li>
1.118 avankest 956:
957: <li><p>Synchronously switch the state to
958: <span title="DONE state">DONE</span>.</p></li>
959:
960: <li><p>If <var>async</var> is set to <code>false</code> raise a
961: <code>NETWORK_ERR</code> exception and terminate the overall
962: algorithm.</p></li>
963:
964: <li><p>Synchronously dispatch a <code>readystatechange</code> event on
965: the object.</p></li>
966:
967: <li><p>Terminate the overall algorithm.</p></li>
968: </ol>
969:
970: <p class="note">It is likely that a future version of the
971: <code>XMLHttpRequest</code> object will dispatch an <code>error</code>
972: event here as well.</p>
973: </dd>
974:
975: <dt>Once all HTTP headers have been received</dt>
976:
977: <dd>
978: <p>If all HTTP headers have been received, before receiving the message
1.123 avankest 979: body (if any), run the following steps:</p>
1.60 avankest 980:
1.118 avankest 981: <ol>
982: <li><p>Synchronously switch the state to
1.123 avankest 983: <span title="HEADERS_RECEIVED state">HEADERS_RECEIVED</span>.</p></li>
1.118 avankest 984:
985: <li><p>Synchronously dispatch a <code>readystatechange</code> event on
986: the object.</p></li>
1.123 avankest 987: </ol>
988: </dd>
989:
990: <dt>Once the first byte (or more) of the response entity body has been
991: received</dt>
992: <dt>If there is no response entity body</dt>
993:
994: <dd>
995: <p>Once the first byte of the response entity body has been received or
996: in case there is no response entity body, run the following steps:</p>
997:
998: <ol>
1.118 avankest 999: <li><p>Synchronously switch the state to
1000: <span title="LOADING state">LOADING</span>.</p></li>
1001:
1002: <li><p>Synchronously dispatch a <code>readystatechange</code> event on
1003: the object.</p></li>
1004: </ol>
1005: </dd>
1006: </dl>
1007:
1.124 avankest 1008: <p>Finally, once the complete resource has been downloaded go to the next
1.118 avankest 1009: step.</p>
1.58 avankest 1010: </li>
1011:
1.82 avankest 1012: <li><p>When the request has successfully completed loading, synchronously
1.96 avankest 1013: switch the state to <span title="DONE state">DONE</span> and then
1014: synchronously dispatch a <code>readystatechange</code> event on the
1015: object and return the method call in case of <var>async</var> being
1016: <code>false</code>.</p></li>
1.58 avankest 1017: </ol>
1.14 avankest 1018:
1.91 avankest 1019: <p>If the user agent allows the user to configure a proxy it
1.22 avankest 1020: <em class="ct">should</em> modify the request appropriately;
1.42 avankest 1021: <abbr title="in other words">i.e.</abbr>, connect to the proxy host
1022: instead of the origin server, modify the <code>Request-Line</code> and
1023: send <code>Proxy-Authorization</code> headers as specified.</p>
1.12 avankest 1024:
1.42 avankest 1025: <p>If the user agent supports HTTP Authentication it
1.22 avankest 1026: <em class="ct">should</em> consider requests originating from this object
1.42 avankest 1027: to be part of the protection space that includes the accessed URIs and
1028: send <code>Authorization</code> headers and handle <code>401
1.137 avankest 1029: Unauthorized</code> requests appropriately. If authentication fails, user
1.42 avankest 1030: agents <em class="ct">should</em> prompt the users for credentials.
1031: [<cite><span>RFC2617</span></cite>]</p>
1032:
1.57 avankest 1033: <p>If the user agent supports HTTP State Management it
1.42 avankest 1034: <em class="ct">should</em> persist, discard and send cookies (as received
1035: in the <code>Set-Cookie</code> and <code>Set-Cookie2</code> response
1036: headers, and sent in the <code>Cookie</code> header) as applicable.
1037: [<cite><span>RFC2965</span></cite>]</p>
1038:
1039: <p>If the user agent implements a HTTP cache it <em class="ct">should</em>
1040: respect <code>Cache-Control</code> request headers set by the script
1041: (<abbr title="for example">e.g.</abbr>, <code>Cache-Control:
1042: no-cache</code> bypasses the cache). It <em class="ct">must not</em> send
1043: <code>Cache-Control</code> or <code>Pragma</code> request headers
1.137 avankest 1044: automatically unless the user explicitly requests such behavior
1.42 avankest 1045: (<abbr>e.g.</abbr>, by (force-)reloading the page). <code>304 Not
1.22 avankest 1046: Modified</code> responses that are a result of a user agent generated
1047: conditional request <em class="ct">must</em> be presented as <code>200
1.57 avankest 1048: OK</code> responses with the appropriate content. The user agent
1.39 avankest 1049: <em class="ct">must</em> allow scripts to override automatic cache
1.22 avankest 1050: validation by setting request headers (e.g., <code>If-None-Match</code>,
1.42 avankest 1051: <code>If-Modified-Since</code>), in which case <code>304 Not
1052: Modified</code> responses <em class="ct">must</em> be passed through.
1053: [<cite><span>RFC2616</span></cite>]</p>
1.12 avankest 1054:
1.8 avankest 1055: <p>If the user agent implements server-driven content-negotiation
1.42 avankest 1056: it <em class="ct">should</em> set <code>Accept-Language</code>,
1.22 avankest 1057: <code>Accept-Encoding</code> and <code>Accept-Charset</code> headers as
1058: appropriate; it <em class="ct">must not</em> automatically set the
1059: <code>Accept</code> header. Responses to such requests
1.127 avankest 1060: <em class="ct">must</em> have the content-encodings automatically
1.42 avankest 1061: decoded. [<cite><span>RFC2616</span></cite>]</p>
1.8 avankest 1062: </dd>
1.12 avankest 1063:
1.131 avankest 1064: <dt><dfn id="abort"><code>abort()</code></dfn>, method</dt>
1.12 avankest 1065:
1.5 avankest 1066: <dd>
1.60 avankest 1067: <p>When invoked, the user agent <em class="ct">must</em> run the following
1.96 avankest 1068: steps (unless otherwise noted):</p>
1.60 avankest 1069:
1070: <ol>
1.108 avankest 1071: <li><p><span title="abort send()">Abort the <code>send()</code>
1072: algorithm</span>, set the <span>response entity body</span> to "null",
1.135 avankest 1073: the <span>error flag</span> to "true" and remove any registered request
1074: headers.</p></li>
1.60 avankest 1075:
1.108 avankest 1076: <li><p>The user agent <em class="ct">should</em> cancel any network
1077: activity for which the object is responsible.</p></li>
1.60 avankest 1078:
1.83 avankest 1079: <li>
1.85 avankest 1080: <p>If the state is <span title="UNSENT state">UNSENT</span>,
1.134 avankest 1081: <span title="OPENED state">OPENED</span> and the <span><code>send()</code>
1.87 avankest 1082: flag</span> is "false", or <span title="DONE state">DONE</span> go to
1083: the next step.</p>
1.85 avankest 1084:
1.135 avankest 1085: <p>Otherwise, switch the state to
1086: <span title="DONE state">DONE</span>, set the
1087: <span><code>send()</code> flag</span> to "false" and synchronously
1088: dispatch a <code>readystatechange</code> event on the object.</p>
1.83 avankest 1089: </li>
1.67 avankest 1090:
1.60 avankest 1091: <li>
1.97 avankest 1092: <p>Switch the state to <span title="UNSENT state">UNSENT</span>. (Do not
1.71 avankest 1093: dispatch the <code>readystatechange</code> event.)</p>
1.60 avankest 1094:
1.82 avankest 1095: <p class="note">It is likely that a future version of the
1096: <code>XMLHttpRequest</code> object will dispatch an
1097: <code title="">abort</code> event here as well.</p>
1.60 avankest 1098: </li>
1099: </ol>
1.5 avankest 1100: </dd>
1.12 avankest 1101:
1.131 avankest 1102: <dt><dfn id="getallresponseheaders"><code>getAllResponseHeaders()</code></dfn>,
1.22 avankest 1103: method</dt>
1.12 avankest 1104:
1.5 avankest 1105: <dd>
1.60 avankest 1106: <p>When invoked, the user agent <em class="ct">must</em> run
1.58 avankest 1107: the following steps:</p>
1108:
1109: <ol>
1.124 avankest 1110: <li><p>If the state is <span title="UNSENT state">UNSENT</span> or
1.134 avankest 1111: <span title="OPENED state">OPENED</span> raise an
1.98 avankest 1112: <code>INVALID_STATE_ERR</code> exception and terminate these
1113: steps.</p></li>
1.124 avankest 1114:
1115: <li><p>If the <span>error flag</span> is "true" return <code>null</code>
1116: and terminate these steps.</p></li>
1.96 avankest 1117:
1118: <li><p>Return all the HTTP headers, as a single string, with each header
1119: line separated by a U+000D CR U+000A LF pair excluding the status
1120: line.</p></li>
1.58 avankest 1121: </ol>
1.24 avankest 1122:
1.5 avankest 1123: <div class="example">
1.58 avankest 1124: <pre><code>// The following script:
1.5 avankest 1125: var client = new XMLHttpRequest();
1.14 avankest 1126: client.open("GET", "test.txt", true);
1.5 avankest 1127: client.send();
1.12 avankest 1128: client.onreadystatechange = function() {
1.13 avankest 1129: if(this.readyState == 3) {
1.12 avankest 1130: print(this.getAllResponseHeaders());
1131: }
1132: }
1.5 avankest 1133:
1134: // ...should output something similar to the following text:
1135: Date: 2004年10月24日 04:58:38 GMT
1136: Server: Apache/1.3.31 (Unix)
1137: Keep-Alive: timeout=15, max=99
1138: Connection: Keep-Alive
1139: Transfer-Encoding: chunked
1.58 avankest 1140: Content-Type: text/plain; charset=utf-8</code></pre>
1.5 avankest 1141: </div>
1142: </dd>
1.12 avankest 1143:
1.131 avankest 1144: <dt><dfn id="getresponseheader" title="getresponseheader"><code>getResponseHeader(<var>header</var>)</code></dfn>,
1.22 avankest 1145: method</dt>
1.12 avankest 1146:
1.1 avankest 1147: <dd>
1.58 avankest 1148: <p>When the method is invoked, the user agent <em class="ct">must</em> run
1149: the following steps:</p>
1.14 avankest 1150:
1.58 avankest 1151: <ol>
1.124 avankest 1152: <li><p>If the state is <span title="UNSENT state">UNSENT</span> or
1.134 avankest 1153: <span title="OPENED state">OPENED</span> raise an
1.98 avankest 1154: <code>INVALID_STATE_ERR</code> exception and terminate these
1155: steps.</p></li>
1.58 avankest 1156:
1.124 avankest 1157: <li><p>If the <span>error flag</span> is "true" return <code>null</code>
1158: and terminate these steps.</p></li>
1159:
1.97 avankest 1160: <li><p>If the <var>header</var> argument does not match the
1.96 avankest 1161: <span><code>field-name</code> production</span> raise a
1.98 avankest 1162: <code>SYNTAX_ERR</code> exception and terminate these steps.</p></li>
1.58 avankest 1163:
1.80 avankest 1164: <li><p>If the <var>header</var> argument
1165: <span title="case-insensitive match">case-insensitively matches</span>
1.127 avankest 1166: multiple HTTP headers for the last request sent, return the values of
1.96 avankest 1167: these headers as a single concatenated string separated from each other
1.98 avankest 1168: by an U+002C COMMA followed by an U+0020 SPACE and terminate these
1.96 avankest 1169: steps.</p></li>
1.58 avankest 1170:
1.80 avankest 1171: <li><p>If the <var>header</var> argument
1172: <span title="case-insensitive match">case-insensitively matches</span> a
1.96 avankest 1173: single HTTP header for the last request sent return the value of that
1.98 avankest 1174: header and terminate these steps.</p></li>
1.58 avankest 1175:
1.96 avankest 1176: <li><p>Return <code>null</code>.</p></li>
1.58 avankest 1177: </ol>
1.12 avankest 1178:
1.1 avankest 1179: <div class="example">
1.58 avankest 1180: <pre><code>// The following script:
1.1 avankest 1181: var client = new XMLHttpRequest();
1.14 avankest 1182: client.open("GET", "test.txt", true);
1.5 avankest 1183: client.send();
1.12 avankest 1184: client.onreadystatechange = function() {
1.13 avankest 1185: if(this.readyState == 3) {
1.14 avankest 1186: print(client.getResponseHeader("Content-Type"));
1.12 avankest 1187: }
1188: }
1.1 avankest 1189:
1.5 avankest 1190: // ...should output something similar to the following text:
1.58 avankest 1191: Content-Type: text/plain; charset=utf-8</code></pre>
1.1 avankest 1192: </div>
1.5 avankest 1193: </dd>
1.12 avankest 1194:
1.131 avankest 1195: <dt><dfn id="responsetext"><code>responseText</code></dfn> of type
1.22 avankest 1196: <code>DOMString</code>, readonly</dt>
1.12 avankest 1197:
1.5 avankest 1198: <dd>
1.88 avankest 1199: <p>On getting, the user agent <em class="ct">must</em> run the following
1200: steps:</p>
1201:
1202: <ol>
1203: <li><p>If the state is not <span title="LOADING state">LOADING</span> or
1.96 avankest 1204: <span title="DONE state">DONE</span> raise an
1.98 avankest 1205: <code>INVALID_STATE_ERR</code> exception and terminate these
1206: steps.</p></li>
1.12 avankest 1207:
1.88 avankest 1208: <li><p>Return the <span>text response entity body</span>.</p></li>
1209: </ol>
1.5 avankest 1210: </dd>
1.12 avankest 1211:
1.131 avankest 1212: <dt><dfn id="responsexml"><code>responseXML</code></dfn> of type
1.22 avankest 1213: <code>Document</code>, readonly</dt>
1.12 avankest 1214:
1.8 avankest 1215: <dd>
1.75 avankest 1216: <p>On getting, the user agent <em class="ct">must</em> run the following
1217: steps:</p>
1.79 avankest 1218:
1.75 avankest 1219: <ol>
1.96 avankest 1220: <li><p>If the state is not <span title="DONE state">DONE</span> raise an
1.98 avankest 1221: <code>INVALID_STATE_ERR</code> exception and terminate these
1222: steps.</p></li>
1.75 avankest 1223:
1.88 avankest 1224: <li><p>Return the <span>XML response entity body</span>.</p></li>
1.75 avankest 1225: </ol>
1.5 avankest 1226: </dd>
1.12 avankest 1227:
1.131 avankest 1228: <dt><dfn id="status"><code>status</code></dfn> of type <code>unsigned
1.22 avankest 1229: short</code>, readonly</dt>
1.12 avankest 1230:
1.5 avankest 1231: <dd>
1.72 avankest 1232: <p>On getting, if available, it <em class="ct">must</em> return the HTTP
1233: status code sent by the server (typically <code>200</code> for a
1234: successful request). Otherwise, if not available, the user agent
1235: <em class="ct">must</em> raise an <code>INVALID_STATE_ERR</code>
1236: exception.</p>
1.12 avankest 1237: </dd>
1238:
1.131 avankest 1239: <dt><dfn id="statustext"><code>statusText</code></dfn> of type
1.22 avankest 1240: <code>DOMString</code>, readonly</dt>
1.12 avankest 1241:
1.5 avankest 1242: <dd>
1.72 avankest 1243: <p>On getting, if available, it <em class="ct">must</em> return the HTTP
1244: status text sent by the server (appears after the status code). Otherwise,
1245: if not available, the user agent <em class="ct">must</em> raise an
1246: <code>INVALID_STATE_ERR</code> exception.</p>
1.1 avankest 1247: </dd>
1248: </dl>
1.12 avankest 1249:
1.121 avankest 1250:
1.31 avankest 1251: <h3 id="events">Events for the <code title="">XMLHttpRequest</code>
1252: Object</h3>
1.12 avankest 1253:
1.134 avankest 1254: <p>This section describes the various events that can be dispatched on
1255: objects implementing the <code>XMLHttpRequest</code> interface. For this
1.22 avankest 1256: version of the specification only one event is defined.</p>
1.12 avankest 1257:
1.1 avankest 1258: <dl>
1.131 avankest 1259: <dt><dfn id="readystatechange"><code>readystatechange</code></dfn></dt>
1.24 avankest 1260:
1.72 avankest 1261: <dd>When the user agent dispatches a <code title="">readystatechange</code>
1262: event (as indicated above) it <em class="ct">must not</em> bubble,
1263: <em class="ct">must not</em> be cancelable and <em class="ct">must</em>
1264: implement the <code>Event</code> interface. Its <code>namespaceURI</code>
1265: attribute <em class="ct">must</em> be <code>null</code>.
1266: [<cite><span>DOM3Events</span></cite>]</dd>
1.1 avankest 1267: </dl>
1.32 avankest 1268:
1.31 avankest 1269: <h3 id="exceptions">Exceptions for the <code title="">XMLHttpRequest</code>
1270: Object</h3>
1.138 avankest 1271:
1272: <p>Several algorithms in this specification may result in an exception
1273: being thrown. These exceptions are all part of the group
1274: <code>ExceptionCode</code> and use the <code>DOMException</code> object
1275: which is defined in DOM Level 3 Core. In addition this specification
1276: extends the <code>ExceptionCode</code> group with several new
1277: constants as indicated below. [<cite><span>DOM3Core</span></cite>]</p>
1.31 avankest 1278:
1.138 avankest 1279: <pre class="idl">const unsigned short <span>SECURITY_ERR</span> = 18;
1.121 avankest 1280: const unsigned short <span>NETWORK_ERR</span> = 101;
1281: const unsigned short <span>ABORT_ERR</span> = 102;</pre>
1.31 avankest 1282:
1.138 avankest 1283: <p>The <dfn id="security-err"><code>SECURITY_ERR</code></dfn> exception is
1284: raised if an attempt is made to perform an operation or access some data
1285: in a way that would be a security risk or a violation of the user agent's
1286: security policy.</p>
1287:
1288: <!-- http://lists.w3.org/Archives/Public/public-webapi/2006May/0027.html -->
1289:
1290: <p class="note">The <code title="">SECURITY_ERR</code> exception is
1291: expected to be eventually folded into an update of the the DOM Level 3
1292: Core specification with an equivalent definition and identical constant
1293: value. Until that happens it is defined here to guide implementors. (This
1294: is also the reason it has a different constant value from the other
1295: exceptions.)</p>
1296:
1.33 avankest 1297: <p>The <dfn id="network-err"><code>NETWORK_ERR</code></dfn> exception is
1.138 avankest 1298: raised when a network error occurs in synchronous requests.</p>
1.121 avankest 1299:
1.138 avankest 1300: <p>The <dfn id="abort-err"><code>ABORT_ERR</code></dfn> exception is
1301: raised when the user aborts a request in synchronous requests.</p>
1.121 avankest 1302:
1303:
1.11 avankest 1304:
1.29 avankest 1305: <h2 class="no-num" id="notcovered">Not in this Specification</h2>
1306:
1.143 avankest 1307: <p><em>This section is non-normative.</em></p>
1.29 avankest 1308:
1.72 avankest 1309: <p>This specification does not include the following features which are
1310: being considered for a future version of this specification:</p>
1.29 avankest 1311:
1312: <ul>
1313: <li><code>load</code> event and <code>onload</code> attribute;</li>
1314: <li><code>error</code> event and <code>onerror</code> attribute;</li>
1315: <li><code>progress</code> event and <code>onprogress</code> attribute;</li>
1316: <li><code title="">abort</code> event and <code>onabort</code> attribute;</li>
1317: <li>Timers have been suggested, perhaps an <code>ontimeout</code>
1318: attribute;</li>
1319: <li>Property to disable following redirects;</li>
1.30 avankest 1320: <li><code title="">responseXML</code> for <code>text/html</code>
1321: documents;</li>
1.40 avankest 1322: <li>Cross-site <code title="">XMLHttpRequest</code>;</li>
1.87 avankest 1323: <li><code>responseBody</code> to deal with byte streams;</li>
1.114 avankest 1324: <li><code>overrideMimeType</code> to fix up MIME types;</li>
1.87 avankest 1325: <li><code>getRequestHeader()</code> and
1326: <code>removeRequestHeader()</code>.</li>
1.29 avankest 1327: </ul>
1328:
1.1 avankest 1329: <h2 class="no-num" id="bibref">References</h2>
1.11 avankest 1330:
1.6 avankest 1331: <dl>
1.145 ! avankest 1332: <dt>[<dfn id="ref-dom3core">DOM3Core</dfn>]</dt>
1.24 avankest 1333:
1.11 avankest 1334: <dd><cite><a href="http://www.w3.org/TR/DOM-Level-3-Core">Document Object
1.92 avankest 1335: Model (DOM) Level 3 Core Specification</a></cite>, A. Le Hors, P. Le
1.139 avankest 1336: Hégaret, L. Wood, G. Nicol, J. Robie, M. Champion, S. Byrne,
1337: editors. W3C, April 2004.</dd>
1.11 avankest 1338:
1.145 ! avankest 1339: <dt>[<dfn id="ref-dom3events">DOM3Events</dfn>]</dt>
1.24 avankest 1340:
1.92 avankest 1341: <dd><cite><a href="http://www.w3.org/TR/DOM-Level-3-Events/">Document
1.139 avankest 1342: Object Model (DOM) Level 3 Events Specification</a></cite> (work in
1343: progress), Björn Höhrmann, editor. W3C, April 2006.</dd>
1.11 avankest 1344:
1.117 avankest 1345: <dt>[<dfn id="ref-ecmascript">ECMAScript</dfn>]</dt>
1.24 avankest 1346:
1.92 avankest 1347: <dd><cite><a href="http://www.ecma-international.org/publications/standards/Ecma-262.htm">ECMAScript
1348: Language Specification</a></cite>, Third Edition. ECMA, December 1999.</dd>
1.142 avankest 1349:
1.145 ! avankest 1350: <dt>[<dfn id="ref-html5">HTML5</dfn>]</dt>
1.142 avankest 1351:
1352: <dd><cite><a href="http://www.whatwg.org/specs/web-apps/current-work/">HTML 5</a></cite>
1.144 avankest 1353: (work in progress), Ian Hickson, editor. WHATWG, 2007</dd>
1.14 avankest 1354:
1.37 avankest 1355: <dt>[<dfn id="ref-rfc2046">RFC2046</dfn>]</dt>
1.24 avankest 1356:
1.19 avankest 1357: <dd><cite><a href="http://ietf.org/rfc/rfc2046">Multipurpose Internet Mail
1.92 avankest 1358: Extensions (MIME) Part Two: Media Types</a></cite>, N. Freed, N.
1359: Borenstein, editors. IETF, November 1996.</dd>
1.14 avankest 1360:
1.145 ! avankest 1361: <dt>[<dfn id="ref-rfc2119">RFC2119</dfn>]</dt>
1.24 avankest 1362:
1.117 avankest 1363: <dd><cite><a href="http://ietf.org/rfc/rfc2119">Key words for use in RFCs to
1364: Indicate Requirement Levels</a></cite>, S. Bradner. IETF, March 1997.</dd>
1.145 ! avankest 1365:
! 1366: <dt>[<dfn id="ref-rfc2397">RFC2397</dfn>]</dt>
! 1367:
! 1368: <dd><cite><a href="http://www.ietf.org/rfc/rfc2397">The "data" URL
! 1369: scheme</a></cite>, L. Masinter. IETF, April, 1998.</dd>
1.12 avankest 1370:
1.145 ! avankest 1371: <dt>[<dfn id="ref-rfc2616">RFC2616</dfn>]</dt>
1.24 avankest 1372:
1.11 avankest 1373: <dd><cite><a href="http://ietf.org/rfc/rfc2616">Hypertext Transfer Protocol
1.92 avankest 1374: -- HTTP/1.1</a></cite>, R. Fielding, J. Gettys, J. Mogul, H. Frystyk, L.
1375: Masinter, P. Leach, T. Berners-Lee, editors. IETF, June 1999.</dd>
1.12 avankest 1376:
1.37 avankest 1377: <dt>[<dfn id="ref-rfc2617">RFC2617</dfn>]</dt>
1.24 avankest 1378:
1.11 avankest 1379: <dd><cite><a href="http://ietf.org/rfc/rfc2617">HTTP Authentication: Basic
1.92 avankest 1380: and Digest Access Authentication</a></cite>, P. Hallam-Baker, J.
1381: Hostetler, S. Lawrence, P. Leach, A. Luotonen, L. Stewart, editors. IETF,
1382: June 1999.</dd>
1.12 avankest 1383:
1.37 avankest 1384: <dt>[<dfn id="ref-rfc2965">RFC2965</dfn>]</dt>
1.24 avankest 1385:
1.19 avankest 1386: <dd><cite><a href="http://ietf.org/rfc/rfc2965">HTTP State Management
1.92 avankest 1387: Mechanism</a></cite>, D. Kristol, L. Montulli, editors. IETF, October
1388: 2000.</dd>
1.19 avankest 1389:
1.37 avankest 1390: <dt>[<dfn id="ref-rfc3986">RFC3986</dfn>]</dt>
1.24 avankest 1391:
1.11 avankest 1392: <dd><cite><a href="http://ietf.org/rfc/rfc3986">Uniform Resource Identifier
1.92 avankest 1393: (URI): Generic Syntax</a></cite>, T. Berners-Lee, R. Fielding, L. Masinter,
1394: editors. IETF, January 2005.</dd>
1.141 avankest 1395:
1396: <dt>[<dfn id="ref-rfc3987">RFC3987</dfn>]</dt>
1397:
1398: <dd><cite><a href="http://ietf.org/rfc/rfc3987">Internationalized
1399: Resource Identifiers (IRIs)</a></cite>, M. Duerst, M. Suignard, editors.
1400: IETF, January 2005.</dd>
1.28 avankest 1401:
1.92 avankest 1402: <dt>[<dfn id="ref-window">Window</dfn>]</dt>
1.28 avankest 1403:
1.92 avankest 1404: <dd><cite><a href="http://www.w3.org/TR/Window/">Window Object
1.139 avankest 1405: 1.0</a></cite> (work in progress), I. Davis, M. Stachowiak, editors. W3C,
1406: April 2006.</dd>
1.41 avankest 1407:
1.92 avankest 1408: <dt>[<dfn id="ref-xml">XML</dfn>]</dt>
1.41 avankest 1409:
1.92 avankest 1410: <dd><cite><a href="http://www.w3.org/TR/xml/">Extensible Markup Language
1411: (XML) 1.0 (Fourth Edition)</a></cite>, T. Bray, J. Paoli, C.
1.117 avankest 1412: Sperberg-McQueen, E. Maler, F. Yergeau, editors. W3C, September 2006.</dd>
1.41 avankest 1413:
1.92 avankest 1414: <dt>[<dfn id="ref-xmlns">XMLNS</dfn>]</dt>
1.41 avankest 1415:
1.92 avankest 1416: <dd><cite><a href="http://www.w3.org/TR/xml-names/">Namespaces in XML
1.117 avankest 1417: (Second Edition)</a></cite>, T. Bray, D. Hollander, A. Layman, R. Tobin,
1418: editors. W3C, August 2006.</dd>
1.1 avankest 1419: </dl>
1.11 avankest 1420:
1.130 avankest 1421: <h2 class="no-num" id="acknowledgments">Acknowledgments</h2>
1.11 avankest 1422:
1.1 avankest 1423: <p><em>This section is non-normative</em></p>
1.12 avankest 1424:
1.7 avankest 1425: <p>The editor would like to thank to the following people who have contributed
1.33 avankest 1426: to this specification (ordered by first name):</p>
1.12 avankest 1427:
1.1 avankest 1428: <ul>
1.112 avankest 1429: <li>Ahmed Kamel</li>
1.22 avankest 1430: <li>Alex Hopmann</li>
1.7 avankest 1431: <li>Alex Vincent</li>
1.15 avankest 1432: <li>Alexey Proskuryakov</li>
1.136 avankest 1433: <li>Asbjørn Ulsberg</li>
1.1 avankest 1434: <li>Boris Zbarsky</li>
1.136 avankest 1435: <li>Björn Höhrmann</li>
1.1 avankest 1436: <li>Cameron McCormack</li>
1437: <li>Christophe Jolif</li>
1438: <li>Charles McCathieNevile</li>
1.54 avankest 1439: <li>Dan Winship</li>
1.136 avankest 1440: <li>David Håsäther</li>
1.1 avankest 1441: <li>Dean Jackson</li>
1.126 avankest 1442: <li>Denis Sureau</li>
1.1 avankest 1443: <li>Doug Schepers</li>
1444: <li>Douglas Livingstone</li>
1.130 avankest 1445: <li>Elliotte Harold</li>
1.112 avankest 1446: <li>Eric Lawrence</li>
1447: <li>Gideon Cohn</li>
1.1 avankest 1448: <li>Gorm Haug Eriksen</li>
1449: <li>Hallvord R. M. Steen</li>
1.136 avankest 1450: <li>Håkon Wium Lie</li>
1.1 avankest 1451: <li>Ian Davis</li>
1452: <li>Ian Hickson</li>
1453: <li>Ivan Herman</li>
1.134 avankest 1454: <li>Jeff Walden</li>
1.136 avankest 1455: <li>Jens Lindström</li>
1.1 avankest 1456: <li>Jim Deegan</li>
1457: <li>Jim Ley</li>
1.112 avankest 1458: <li>Joe Farro</li>
1.1 avankest 1459: <li>Jonas Sicking</li>
1460: <li>Julian Reschke</li>
1461: <li>Karl Dubost</li>
1462: <li>Maciej Stachowiak</li>
1.7 avankest 1463: <li>Magnus Kristiansen</li>
1.1 avankest 1464: <li>Marc Hadley</li>
1.53 avankest 1465: <li>Marcos Caceres</li>
1.87 avankest 1466: <li>Mark Baker</li>
1.1 avankest 1467: <li>Mark Nottingham</li>
1.92 avankest 1468: <li>Mohamed Zergaoui</li>
1.1 avankest 1469: <li>Pawel Glowacki</li>
1470: <li>Robin Berjon</li>
1471: <li>Ruud Steltenpool</li>
1.33 avankest 1472: <li>Simon Pieters</li>
1.125 avankest 1473: <li>Stewart Brodie</li>
1.112 avankest 1474: <li>Sunava Dutta</li>
1475: <li>Zhenbin Xu</li>
1.1 avankest 1476: </ul>
1.12 avankest 1477:
1.1 avankest 1478: <p>Special thanks to the Microsoft employees who first implemented the
1.143 avankest 1479: <code title="">XMLHttpRequest</code> interface, which was first widely
1480: deployed by the Windows Internet Explorer browser.</p>
1.12 avankest 1481:
1.143 avankest 1482: <p>Special thanks also to the WHATWG for drafting an initial version of
1483: this specification in their Web Applications 1.0 document (now renamed to
1484: HTML 5). [<cite><span>HTML5</span></cite>]</p>
1.12 avankest 1485:
1.143 avankest 1486: <p>Thanks also to all those who have helped to improve this specification
1487: by sending suggestions and corrections. (Please, keep bugging us with your
1.22 avankest 1488: issues!)</p>
1.1 avankest 1489: </body>
1490: </html>
Webmaster