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26: <body>
27: <div class="head">
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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:
1.94 avankest 216: <p>If the user agent does not support XML (including support for
217: namespaces) the <span>XML response entity body</span>
218: <em class="ct">must</em> (always) be <code>null</code>.</p>
1.74 avankest 219:
1.75 avankest 220: <p>User agents <em class="ct">may</em> optimize any algorithm given in
221: this specification, so long as the end result is indistinguishable from
222: the result that would be obtained by the specification's algorithms. (The
223: algorithms in this specification are generally written with more concern
224: for clarity than efficiency.)</p>
1.110 avankest 225:
1.95 avankest 226: <p class="note">This specification uses both the terms "conforming user
227: agent(s)" and "user agent(s)" to refer to this product class.</p>
1.74 avankest 228: </dd>
1.110 avankest 229:
1.94 avankest 230: <dt><dfn id="conforming-xml-user-agent">Conforming XML user agent</dfn></dt>
1.110 avankest 231:
1.94 avankest 232: <dd><p>A user agent that is a <span>conforming user agent</span> and also
233: supports XML (including support for namespaces).</p></dd>
1.1 avankest 234: </dl>
1.32 avankest 235:
1.30 avankest 236: <h4 id="dependencies">Dependencies</h4>
1.33 avankest 237:
1.29 avankest 238: <p>This specification relies on several underlying specifications.</p>
239: <dl>
240: <dt>DOM</dt>
1.33 avankest 241:
1.29 avankest 242: <dd>
1.126 avankest 243: <p>A <span title="conforming user agent">conforming user agent</span>
1.95 avankest 244: <em class="ct">must</em> support some version of DOM Events and DOM Core,
245: because this specification uses some of the features defined in those
246: specifications. [<cite><span>DOM3Events</span></cite>]
247: [<cite><span>DOM3Core</span></cite>]</p>
248:
249: <p>It <em class="ct">must</em> also support some version of the Window
250: Object because some of the functionality in this specification relies on
251: it. [<cite><span>Window</span></cite>]</p>
1.29 avankest 252: </dd>
253:
254: <dt>HTTP</dt>
1.33 avankest 255:
1.29 avankest 256: <dd>
1.126 avankest 257: <p>A <span title="conforming user agent">conforming user agent</span>
258: <em class="ct">must</em> support some version of the HTTP protocol. It
259: <em class="ct">should</em> support any HTTP method that matches the
260: <span><code>Method</code> production</span> and <em class="ct">must</em> at
261: least support the following methods:</p>
1.58 avankest 262:
263: <ul>
264: <li><code>GET</code></li>
265: <li><code>POST</code></li>
266: <li><code>HEAD</code></li>
267: <li><code>PUT</code></li>
268: <li><code>DELETE</code></li>
269: <li><code>OPTIONS</code></li>
270: </ul>
1.135 avankest 271:
1.58 avankest 272: <p>Other requirements regarding HTTP are made throughout the
1.39 avankest 273: specification. [<cite><span>RFC2616</span></cite>]</p>
1.29 avankest 274: </dd>
1.41 avankest 275:
276: <dt>XML</dt>
277:
1.95 avankest 278: <dd><p><span title="Conforming XML user agent">Conforming XML user
279: agents</span> <em class="ct">must</em> support XML (including support for
280: namespaces). [<cite><span>XML</span></cite>]
281: [<cite><span>XMLNS</span></cite>]</p></dd>
1.29 avankest 282: </dl>
1.12 avankest 283:
1.80 avankest 284: <h4 id="terminology">Terminology</h4>
1.12 avankest 285:
1.80 avankest 286: <p>There is a <dfn id="case-insensitive-match">case-insensitive match</dfn>
1.101 avankest 287: of strings <var>s1</var> and <var>s2</var> if after uppercasing both strings
1.100 avankest 288: (by mapping a-z to A-Z) they are identical.</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:
1.127 avankest 441: <li><p>If there is a <code>Content-Type</code> header which contains a
1.118 avankest 442: <code>text/html</code> MIME type follow the rules set forth in the HTML
443: specification to determine the character encoding. Let <var>charset</var> be
444: the determined character encoding.</p></li>
445: <!-- XXX ref -->
446:
1.115 avankest 447: <li>
448: <p>If the <code>Content-Type</code> MIME type contains a
449: <code>charset</code> parameter and <var>charset</var> is "null" let
450: <var>charset</var> be the value of that parameter.</p>
1.118 avankest 451:
452: <p class="note">The algorithms described by the XML and HTML specifications
453: 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
597: <code>userinfo</code> production defined in section 3.2.1 of RFC 3986 is
598: not supported for the relevant scheme and <var>stored url</var> contains
1.98 avankest 599: this format raise a <code>SYNTAX_ERR</code> and terminate these steps.
1.69 avankest 600: [<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:
1.69 avankest 609: <li>
610: <p>If <var>stored url</var> is non same-origin the user agent
611: <em class="ct">should</em> raise a <code>SECURITY_ERR</code> exception
1.98 avankest 612: and terminate these steps.</p>
1.69 avankest 613: <p class="note">This specification does not define what constitutes as
1.117 avankest 614: non same-origin. It is expected that what constitutes as non same-origin
1.102 avankest 615: will be defined before this specification eventually reaches the W3C
616: Recommendation status by way of referencing a specification that defines
617: it.<!-- XXX reference HTML5? --></p>
1.69 avankest 618: </li>
1.58 avankest 619:
620: <li><p>Let <var>async</var> be the value of the <var>async</var> argument
1.102 avankest 621: or <code>true</code> if it was omitted.</p></li>
1.58 avankest 622:
1.126 avankest 623: <li><p>If the <var>user</var> argument was not omitted, and its syntax
624: does not match that specified by the relevant authentication scheme, raise
1.98 avankest 625: a <code>SYNTAX_ERR</code> exception and terminate these steps.</p></li>
1.14 avankest 626:
1.58 avankest 627: <li>
628: <p>If the <var>user</var> argument was not omitted and is not
629: <code>null</code> let <var>stored user</var> be <var>user</var> encoded
630: using the encoding specified in the relevant authentication scheme or
631: UTF-8 if the scheme fails to specify an encoding.</p>
1.14 avankest 632:
1.58 avankest 633: <p class="note">This step overrides any user that may have been set by
634: the <var>url</var> argument.</p>
635: </li>
1.16 avankest 636:
1.58 avankest 637: <li><p>If the <var>user</var> argument was not omitted and is
638: <code>null</code> remove <var>stored user</var>.</p></li>
1.14 avankest 639:
1.58 avankest 640: <li><p>If the <var>password</var> argument was not omitted and its syntax
1.96 avankest 641: does not match that specified by the relevant authentication scheme raise
1.98 avankest 642: a <code>SYNTAX_ERR</code> exception and terminate these steps.</p></li>
1.58 avankest 643:
644: <li><p>If the <var>password</var> argument was not omitted and is not
645: <code>null</code> let <var>stored password</var> be <var>password</var>
646: encoded using the encoding specified in the relevant authentication
647: scheme or UTF-8 if the scheme fails to specify an encoding.</p></li>
648:
649: <li><p>If the <var>password</var> argument was not omitted and is
650: <code>null</code> remove <var>stored password</var>.</p></li>
651:
1.108 avankest 652: <li><p><span title="abort send()">Abort the <code>send()</code>
653: algorithm</span>, set <span>response entity body</span> to "null" and
654: reset the list of request headers.<p></li>
1.58 avankest 655:
1.108 avankest 656: <li><p>The user agent <em class="ct">should</em> cancel any network
657: activity for which the object is responsible.</p></li>
1.58 avankest 658: <!-- we can hardly require it... -->
659:
1.134 avankest 660: <li><p>Switch the object to the <span title="OPENED state">OPENED</span>
1.105 avankest 661: state, set the <span><code>send()</code> flag</span> to "false" and then
1.104 avankest 662: synchronously dispatch a <code>readystatechange</code> event on the
663: object and return the method call.</p></li>
1.58 avankest 664: </ol>
1.14 avankest 665:
1.19 avankest 666: <p class="note">A future version or extension of this specification will
1.33 avankest 667: most likely define a way of doing cross-site requests.</p>
1.1 avankest 668: </dd>
1.12 avankest 669:
1.131 avankest 670: <dt><dfn id="setrequestheader" title="setrequestheader"><code>setRequestHeader(<var>header</var>,
1.22 avankest 671: <var>value</var>)</code></dfn>, method</dt>
1.12 avankest 672:
1.5 avankest 673: <dd>
1.45 avankest 674: <p>Each request has a list of request headers with associated values. This
675: method can be used to manipulate those values and set new request
676: headers.</p>
677:
1.58 avankest 678: <p>When invoked, the user agent <em class="ct">must</em> follow the
1.96 avankest 679: following steps (unless otherwise indicated):</p>
1.14 avankest 680:
1.58 avankest 681: <ol>
682: <li><p>If the state of the object is not
1.134 avankest 683: <span title="OPENED state">OPENED</span> raise an
1.98 avankest 684: <code>INVALID_STATE_ERR</code> exception and terminate these
685: steps.</p></li>
1.96 avankest 686:
687: <li><p>If the <span><code>send()</code> flag</span> is "true" raise an
1.98 avankest 688: <code>INVALID_STATE_ERR</code> exception and terminate these
689: steps.</p></li>
1.14 avankest 690:
1.97 avankest 691: <li><p>If the <var>header</var> argument does not match the
1.22 avankest 692: <dfn><code>field-name</code> production</dfn> as defined by section 4.2
1.96 avankest 693: of RFC 2616 or is <code>null</code> raise a <code>SYNTAX_ERR</code>
1.98 avankest 694: exception and terminate these steps.
1.96 avankest 695: [<cite><span>RFC2616</span></cite>]</p></li>
696:
1.98 avankest 697: <li><p>If the <var>value</var> argument is <code>null</code> terminate
698: these steps. (Do not raise an exception.)</li>
1.70 avankest 699: <!-- undefined is to be treated as null here... -->
1.79 avankest 700:
1.97 avankest 701: <li><p>If the <var>value</var> argument does not match the
1.22 avankest 702: <dfn><code>field-value</code> production</dfn> as defined by section 4.2
1.98 avankest 703: of RFC 2616 raise a <code>SYNTAX_ERR</code> and terminate these steps.
1.58 avankest 704: [<cite><span>RFC2616</span></cite>]</p></li>
1.14 avankest 705:
1.32 avankest 706: <li>
1.132 avankest 707: <p>For security reasons, these steps <em class="ct">should</em> be
1.98 avankest 708: terminated if the <var>header</var> argument
1.80 avankest 709: <span title="case-insensitive match">case-insensitively matches</span>
710: one of the following headers:</p>
1.58 avankest 711:
1.32 avankest 712: <ul>
713: <li><code>Accept-Charset</code></li>
714: <li><code>Accept-Encoding</code></li>
1.68 avankest 715: <li><code>Connection</code></li>
1.32 avankest 716: <li><code>Content-Length</code></li>
1.68 avankest 717: <li><code>Content-Transfer-Encoding</code></li>
718: <li><code>Date</code></li>
1.32 avankest 719: <li><code>Expect</code></li>
720: <li><code>Host</code></li>
721: <li><code>Keep-Alive</code></li>
722: <li><code>Referer</code></li>
723: <li><code>TE</code></li>
724: <li><code>Trailer</code></li>
725: <li><code>Transfer-Encoding</code></li>
726: <li><code>Upgrade</code></li>
1.68 avankest 727: <li><code>Via</code></li>
1.32 avankest 728: </ul>
729: </li>
1.132 avankest 730:
731: <li><p>Also for security reasons, these steps <em class="ct">should</em> be
732: terminated if the first six characters of the <var>header</var> argument
733: <span title="case-insensitive match">case-insensitively match</span>
734: <code>Proxy-</code>.</p></li>
1.5 avankest 735:
1.58 avankest 736: <li><p>If the <var>header</var> argument is not in the list of request
1.96 avankest 737: headers append the <var>header</var> with its associated <var>value</var>
1.98 avankest 738: to the list and terminate these steps.</p></li>
1.58 avankest 739:
740: <li><p>If the <var>header</var> argument is in the list of request
1.96 avankest 741: headers either use multiple headers, combine the values or use a
742: combination of those (section 4.2, RFC 2616).
743: [<cite><span>RFC2616</span></cite>]</p></li>
744: <!-- XXX it seems UAs always combine the values -->
1.58 avankest 745: </ol>
1.45 avankest 746:
747: <p class="note">See also the <code>send()</code> method regarding user
1.71 avankest 748: agent header handling for caching, authentication, proxies, and
749: cookies.</p>
1.14 avankest 750:
751: <div class="example">
1.58 avankest 752: <pre><code>// The following script:
1.14 avankest 753: var client = new XMLHttpRequest();
754: client.open('GET', 'demo.cgi');
755: client.setRequestHeader('X-Test', 'one');
756: client.setRequestHeader('X-Test', 'two');
757: client.send();
758:
759: // ...would result in the following header being sent:
760: ...
761: X-Test: one, two
1.58 avankest 762: ...</code></pre>
1.14 avankest 763: </div>
1.5 avankest 764: </dd>
1.12 avankest 765:
1.131 avankest 766: <dt><dfn id="send" title="send"><code>send(<var>data</var>)</code></dfn>,
1.22 avankest 767: method</dt>
1.12 avankest 768:
1.17 avankest 769: <dd>
1.58 avankest 770: <p>The <code>send()</code> method initiates the request and its optional
1.106 avankest 771: argument provides the <span>entity body</span>. Authors are strongly
772: encouraged to ensure that they have specified the
773: <code>Content-Type</code> header via <code>setRequestHeader()</code>
774: before invoking <code>send()</code> with a non-<code>null</code>
775: <var>data</var> argument.</p>
1.58 avankest 776:
777: <p>When invoked, the user agent <em class="ct">must</em> follow the
1.108 avankest 778: following steps (unless otherwise noted). Note that this algorithm might
1.126 avankest 779: get aborted if the <code>open()</code> or <code>abort()</code> method is
780: invoked. When the
1.109 avankest 781: <dfn title="abort send()" id="abort-send-algorithm"><code>send()</code>
1.110 avankest 782: algorithm is aborted</dfn> the user agent <em class="ct">must</em>
783: terminate the algorithm after finishing the step it is on.</p>
784:
1.108 avankest 785: <p class="note">The following algorithm can not be aborted through script
786: when <var>async</var> is <code>false</code>. It can only be aborted when
787: <var>async</var> is <code>true</code> and only after the method call has
788: returned.</p>
1.58 avankest 789:
790: <ol>
791: <li><p>If the state of the object is not
1.134 avankest 792: <span title="OPENED state">OPENED</span> raise an
1.98 avankest 793: <code>INVALID_STATE_ERR</code> exception and terminate these
794: steps.</p></li>
1.96 avankest 795:
796: <li><p>If the <span><code>send()</code> flag</span> is "true" raise an
1.98 avankest 797: <code>INVALID_STATE_ERR</code> exception and terminate these
798: steps.</p></li>
1.58 avankest 799:
1.102 avankest 800: <li><p>If <var>async</var> is <code>true</code> set the
1.103 avankest 801: <span><code>send()</code> flag</span> to "true".</p></li>
802:
1.58 avankest 803: <li>
804: <p>If the <var>data</var> argument has not been omitted and is not
1.131 avankest 805: <code>null</code> use it for the <dfn id="entity-body">entity body</dfn>
806: as defined by section 7.2 of RFC 2616 observing the following rules:
807: [<cite><span>RFC2616</span></cite>]</p>
1.58 avankest 808:
1.119 avankest 809: <dl class="switch">
1.58 avankest 810: <dt><var>data</var> is a <code>DOMString</code></dt>
811:
1.96 avankest 812: <dd><p>Encode <var>data</var> using UTF-8 for transmission.</p></dd>
1.58 avankest 813:
814: <dt><var>data</var> is a <code>Document</code>
815:
816: <dd>
1.96 avankest 817: <p>Serialize <var>data</var> into a namespace well-formed XML document
818: and encoded using the encoding given by
819: <code><var>data</var>.xmlEncoding</code>, if specified, or UTF-8
820: otherwise. Or, if this fails because the <code>Document</code>
821: cannot be serialized act as if <var>data</var> is
822: <code>null</code>.</p>
823:
824: <p>If no <code>Content-Type</code> header is in the list of request
1.126 avankest 825: headers append a <code>Content-Type</code> header to the list of request
826: headers with a value of <code>application/xml</code>.</p>
1.58 avankest 827:
828: <p class="note">Subsequent changes to the <code>Document</code> have
829: no effect on what is submitted.</p>
830: </dd>
831:
832: <dt><var>data</var> is not a <code>DOMString</code> or
833: <code>Document</code></dt>
834:
1.96 avankest 835: <dd><p>Use the stringification mechanisms of the host language on
836: <var>data</var> and treat the result as if <var>data</var> is a
837: <code>DOMString</code>. Or, if this fails, act as if <var>data</var> is
838: <code>null</code>.</p></dd>
1.58 avankest 839: </dl>
840:
1.126 avankest 841: <p>If the <var>data</var> argument has been omitted, or is
842: <code>null</code>, no entity body is used in the request.</p>
1.58 avankest 843: </li>
844:
1.71 avankest 845: <li><p>Make a request to <var>stored url</var>, using HTTP method
846: <var>stored method</var>, user <var>stored user</var> (if provided) and
847: password <var>stored password</var> (if provided), taking into account
848: the entity body, list of request headers and the rules listed directly
849: after this set of steps.</p></li>
1.60 avankest 850:
1.67 avankest 851: <li>
1.96 avankest 852: <p>Synchronously dispatch a <code>readystatechange</code> event on the
853: object.</p>
1.67 avankest 854:
1.96 avankest 855: <p class="note">The state of the object does not change. The event is
856: dispatched for historical reasons.</p>
1.67 avankest 857: </li>
858:
1.102 avankest 859: <li><p>If <var>async</var> is <code>true</code> return the
1.98 avankest 860: <code>send()</code> method call. (Do not terminate the steps in the
861: algorithm though.)</p></li>
1.58 avankest 862:
1.117 avankest 863: <li>
1.123 avankest 864: <p>While downloading the resource the following rules are to be
865: observed.</p>
866:
1.119 avankest 867: <dl class="switch">
1.118 avankest 868: <dt>If the response is an HTTP redirect</dt>
869:
870: <dd>
871: <p>If the redirect does not violate security or infinite loop
872: precautions and the scheme is supported transparently follow it and go
873: to the start of this step.</p>
874:
875: <p class="note">HTTP places requirements on the user agent regarding the
876: preservation of the request method and entity body during redirects, and
877: also requires users to be notified of certain kinds of automatic
878: redirections.</p>
879: <!-- Arguably HTTP should be fixed for the latter case. No browser
880: follows that as far as I know. -->
881:
882: <p>Otherwise, follow the following set of steps:</p>
883:
884: <ol>
1.124 avankest 885: <li><p>Set the <span>response entity body</span> to "null", the
886: <span>error flag</span> to "true" and reset the list of request
887: headers.</p></li>
1.118 avankest 888:
889: <li><p>Synchronously switch the state to
890: <span title="DONE state">DONE</span>.</p></li>
891:
892: <li><p>If <var>async</var> is set to <code>false</code> raise a
893: <code>NETWORK_ERR</code> exception and terminate the overall
894: algorithm.</p></li>
895:
896: <li><p>Synchronously dispatch a <code>readystatechange</code> event on
897: the object.</p></li>
898:
899: <li><p>Terminate the overall algorithm.</p></li>
900: </ol>
901:
902: <p class="note">It is likely that a future version of the
903: <code>XMLHttpRequest</code> object will dispatch an <code>error</code>
904: event here as well.</p>
905: </dd>
1.117 avankest 906:
1.121 avankest 907:
1.118 avankest 908: <dt>If the user cancels the download</dt>
1.58 avankest 909:
1.118 avankest 910: <dd>
911: <p>Run the following set of steps:</p>
1.60 avankest 912:
1.118 avankest 913: <ol>
1.124 avankest 914: <li><p>Set the <span>response entity body</span> to "null", the
915: <span>error flag</span> to "true" and reset the list of request
916: headers.</p></li>
1.118 avankest 917:
918: <li><p>Synchronously switch the state to
919: <span title="DONE state">DONE</span>.</p></li>
920:
1.121 avankest 921: <li><p>If <var>async</var> is set to <code>false</code> raise an
922: <code>ABORT_ERR</code> exception and terminate the overall
1.118 avankest 923: algorithm.</p></li>
924:
925: <li><p>Synchronously dispatch a <code>readystatechange</code> event on
926: the object.</p></li>
927:
928: <li><p>Terminate the overall algorithm.</p></li>
929: </ol>
1.121 avankest 930:
1.118 avankest 931: <p class="note">It is likely that a future version of the
1.121 avankest 932: <code>XMLHttpRequest</code> object will dispatch an
933: <code title="">abort</code> event here as well.</p>
1.118 avankest 934: </dd>
1.60 avankest 935:
1.121 avankest 936:
1.118 avankest 937: <dt>In case of network errors</dt>
1.60 avankest 938:
1.118 avankest 939: <dd>
1.126 avankest 940: <p>In case of DNS errors, or other type of network errors, run the
941: following set of steps. <span class="note">This does not include HTTP
942: responses that indicate some type of error, such as HTTP status code
943: 410.</span></p>
1.118 avankest 944:
945: <ol>
1.124 avankest 946: <li><p>Set the <span>response entity body</span> to "null", the
947: <span>error flag</span> to "true" and reset the list of request
948: headers.</p></li>
1.118 avankest 949:
950: <li><p>Synchronously switch the state to
951: <span title="DONE state">DONE</span>.</p></li>
952:
953: <li><p>If <var>async</var> is set to <code>false</code> raise a
954: <code>NETWORK_ERR</code> exception and terminate the overall
955: algorithm.</p></li>
956:
957: <li><p>Synchronously dispatch a <code>readystatechange</code> event on
958: the object.</p></li>
959:
960: <li><p>Terminate the overall algorithm.</p></li>
961: </ol>
962:
963: <p class="note">It is likely that a future version of the
964: <code>XMLHttpRequest</code> object will dispatch an <code>error</code>
965: event here as well.</p>
966: </dd>
967:
968: <dt>Once all HTTP headers have been received</dt>
969:
970: <dd>
971: <p>If all HTTP headers have been received, before receiving the message
1.123 avankest 972: body (if any), run the following steps:</p>
1.60 avankest 973:
1.118 avankest 974: <ol>
975: <li><p>Synchronously switch the state to
1.123 avankest 976: <span title="HEADERS_RECEIVED state">HEADERS_RECEIVED</span>.</p></li>
1.118 avankest 977:
978: <li><p>Synchronously dispatch a <code>readystatechange</code> event on
979: the object.</p></li>
1.123 avankest 980: </ol>
981: </dd>
982:
983: <dt>Once the first byte (or more) of the response entity body has been
984: received</dt>
985: <dt>If there is no response entity body</dt>
986:
987: <dd>
988: <p>Once the first byte of the response entity body has been received or
989: in case there is no response entity body, run the following steps:</p>
990:
991: <ol>
1.118 avankest 992: <li><p>Synchronously switch the state to
993: <span title="LOADING state">LOADING</span>.</p></li>
994:
995: <li><p>Synchronously dispatch a <code>readystatechange</code> event on
996: the object.</p></li>
997: </ol>
998: </dd>
999: </dl>
1000:
1.124 avankest 1001: <p>Finally, once the complete resource has been downloaded go to the next
1.118 avankest 1002: step.</p>
1.58 avankest 1003: </li>
1004:
1.82 avankest 1005: <li><p>When the request has successfully completed loading, synchronously
1.96 avankest 1006: switch the state to <span title="DONE state">DONE</span> and then
1007: synchronously dispatch a <code>readystatechange</code> event on the
1008: object and return the method call in case of <var>async</var> being
1009: <code>false</code>.</p></li>
1.58 avankest 1010: </ol>
1.14 avankest 1011:
1.91 avankest 1012: <p>If the user agent allows the user to configure a proxy it
1.22 avankest 1013: <em class="ct">should</em> modify the request appropriately;
1.42 avankest 1014: <abbr title="in other words">i.e.</abbr>, connect to the proxy host
1015: instead of the origin server, modify the <code>Request-Line</code> and
1016: send <code>Proxy-Authorization</code> headers as specified.</p>
1.12 avankest 1017:
1.42 avankest 1018: <p>If the user agent supports HTTP Authentication it
1.22 avankest 1019: <em class="ct">should</em> consider requests originating from this object
1.42 avankest 1020: to be part of the protection space that includes the accessed URIs and
1021: send <code>Authorization</code> headers and handle <code>401
1.137 avankest 1022: Unauthorized</code> requests appropriately. If authentication fails, user
1.42 avankest 1023: agents <em class="ct">should</em> prompt the users for credentials.
1024: [<cite><span>RFC2617</span></cite>]</p>
1025:
1.57 avankest 1026: <p>If the user agent supports HTTP State Management it
1.42 avankest 1027: <em class="ct">should</em> persist, discard and send cookies (as received
1028: in the <code>Set-Cookie</code> and <code>Set-Cookie2</code> response
1029: headers, and sent in the <code>Cookie</code> header) as applicable.
1030: [<cite><span>RFC2965</span></cite>]</p>
1031:
1032: <p>If the user agent implements a HTTP cache it <em class="ct">should</em>
1033: respect <code>Cache-Control</code> request headers set by the script
1034: (<abbr title="for example">e.g.</abbr>, <code>Cache-Control:
1035: no-cache</code> bypasses the cache). It <em class="ct">must not</em> send
1036: <code>Cache-Control</code> or <code>Pragma</code> request headers
1.137 avankest 1037: automatically unless the user explicitly requests such behavior
1.42 avankest 1038: (<abbr>e.g.</abbr>, by (force-)reloading the page). <code>304 Not
1.22 avankest 1039: Modified</code> responses that are a result of a user agent generated
1040: conditional request <em class="ct">must</em> be presented as <code>200
1.57 avankest 1041: OK</code> responses with the appropriate content. The user agent
1.39 avankest 1042: <em class="ct">must</em> allow scripts to override automatic cache
1.22 avankest 1043: validation by setting request headers (e.g., <code>If-None-Match</code>,
1.42 avankest 1044: <code>If-Modified-Since</code>), in which case <code>304 Not
1045: Modified</code> responses <em class="ct">must</em> be passed through.
1046: [<cite><span>RFC2616</span></cite>]</p>
1.12 avankest 1047:
1.8 avankest 1048: <p>If the user agent implements server-driven content-negotiation
1.42 avankest 1049: it <em class="ct">should</em> set <code>Accept-Language</code>,
1.22 avankest 1050: <code>Accept-Encoding</code> and <code>Accept-Charset</code> headers as
1051: appropriate; it <em class="ct">must not</em> automatically set the
1052: <code>Accept</code> header. Responses to such requests
1.127 avankest 1053: <em class="ct">must</em> have the content-encodings automatically
1.42 avankest 1054: decoded. [<cite><span>RFC2616</span></cite>]</p>
1.8 avankest 1055: </dd>
1.12 avankest 1056:
1.131 avankest 1057: <dt><dfn id="abort"><code>abort()</code></dfn>, method</dt>
1.12 avankest 1058:
1.5 avankest 1059: <dd>
1.60 avankest 1060: <p>When invoked, the user agent <em class="ct">must</em> run the following
1.96 avankest 1061: steps (unless otherwise noted):</p>
1.60 avankest 1062:
1063: <ol>
1.108 avankest 1064: <li><p><span title="abort send()">Abort the <code>send()</code>
1065: algorithm</span>, set the <span>response entity body</span> to "null",
1.135 avankest 1066: the <span>error flag</span> to "true" and remove any registered request
1067: headers.</p></li>
1.60 avankest 1068:
1.108 avankest 1069: <li><p>The user agent <em class="ct">should</em> cancel any network
1070: activity for which the object is responsible.</p></li>
1.60 avankest 1071:
1.83 avankest 1072: <li>
1.85 avankest 1073: <p>If the state is <span title="UNSENT state">UNSENT</span>,
1.134 avankest 1074: <span title="OPENED state">OPENED</span> and the <span><code>send()</code>
1.87 avankest 1075: flag</span> is "false", or <span title="DONE state">DONE</span> go to
1076: the next step.</p>
1.85 avankest 1077:
1.135 avankest 1078: <p>Otherwise, switch the state to
1079: <span title="DONE state">DONE</span>, set the
1080: <span><code>send()</code> flag</span> to "false" and synchronously
1081: dispatch a <code>readystatechange</code> event on the object.</p>
1.83 avankest 1082: </li>
1.67 avankest 1083:
1.60 avankest 1084: <li>
1.97 avankest 1085: <p>Switch the state to <span title="UNSENT state">UNSENT</span>. (Do not
1.71 avankest 1086: dispatch the <code>readystatechange</code> event.)</p>
1.60 avankest 1087:
1.82 avankest 1088: <p class="note">It is likely that a future version of the
1089: <code>XMLHttpRequest</code> object will dispatch an
1090: <code title="">abort</code> event here as well.</p>
1.60 avankest 1091: </li>
1092: </ol>
1.5 avankest 1093: </dd>
1.12 avankest 1094:
1.131 avankest 1095: <dt><dfn id="getallresponseheaders"><code>getAllResponseHeaders()</code></dfn>,
1.22 avankest 1096: method</dt>
1.12 avankest 1097:
1.5 avankest 1098: <dd>
1.60 avankest 1099: <p>When invoked, the user agent <em class="ct">must</em> run
1.58 avankest 1100: the following steps:</p>
1101:
1102: <ol>
1.124 avankest 1103: <li><p>If the state is <span title="UNSENT state">UNSENT</span> or
1.134 avankest 1104: <span title="OPENED state">OPENED</span> raise an
1.98 avankest 1105: <code>INVALID_STATE_ERR</code> exception and terminate these
1106: steps.</p></li>
1.124 avankest 1107:
1108: <li><p>If the <span>error flag</span> is "true" return <code>null</code>
1109: and terminate these steps.</p></li>
1.96 avankest 1110:
1111: <li><p>Return all the HTTP headers, as a single string, with each header
1112: line separated by a U+000D CR U+000A LF pair excluding the status
1113: line.</p></li>
1.58 avankest 1114: </ol>
1.24 avankest 1115:
1.5 avankest 1116: <div class="example">
1.58 avankest 1117: <pre><code>// The following script:
1.5 avankest 1118: var client = new XMLHttpRequest();
1.14 avankest 1119: client.open("GET", "test.txt", true);
1.5 avankest 1120: client.send();
1.12 avankest 1121: client.onreadystatechange = function() {
1.13 avankest 1122: if(this.readyState == 3) {
1.12 avankest 1123: print(this.getAllResponseHeaders());
1124: }
1125: }
1.5 avankest 1126:
1127: // ...should output something similar to the following text:
1128: Date: 2004年10月24日 04:58:38 GMT
1129: Server: Apache/1.3.31 (Unix)
1130: Keep-Alive: timeout=15, max=99
1131: Connection: Keep-Alive
1132: Transfer-Encoding: chunked
1.58 avankest 1133: Content-Type: text/plain; charset=utf-8</code></pre>
1.5 avankest 1134: </div>
1135: </dd>
1.12 avankest 1136:
1.131 avankest 1137: <dt><dfn id="getresponseheader" title="getresponseheader"><code>getResponseHeader(<var>header</var>)</code></dfn>,
1.22 avankest 1138: method</dt>
1.12 avankest 1139:
1.1 avankest 1140: <dd>
1.58 avankest 1141: <p>When the method is invoked, the user agent <em class="ct">must</em> run
1142: the following steps:</p>
1.14 avankest 1143:
1.58 avankest 1144: <ol>
1.124 avankest 1145: <li><p>If the state is <span title="UNSENT state">UNSENT</span> or
1.134 avankest 1146: <span title="OPENED state">OPENED</span> raise an
1.98 avankest 1147: <code>INVALID_STATE_ERR</code> exception and terminate these
1148: steps.</p></li>
1.58 avankest 1149:
1.124 avankest 1150: <li><p>If the <span>error flag</span> is "true" return <code>null</code>
1151: and terminate these steps.</p></li>
1152:
1.97 avankest 1153: <li><p>If the <var>header</var> argument does not match the
1.96 avankest 1154: <span><code>field-name</code> production</span> raise a
1.98 avankest 1155: <code>SYNTAX_ERR</code> exception and terminate these steps.</p></li>
1.58 avankest 1156:
1.80 avankest 1157: <li><p>If the <var>header</var> argument
1158: <span title="case-insensitive match">case-insensitively matches</span>
1.127 avankest 1159: multiple HTTP headers for the last request sent, return the values of
1.96 avankest 1160: these headers as a single concatenated string separated from each other
1.98 avankest 1161: by an U+002C COMMA followed by an U+0020 SPACE and terminate these
1.96 avankest 1162: 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> a
1.96 avankest 1166: single HTTP header for the last request sent return the value of that
1.98 avankest 1167: header and terminate these steps.</p></li>
1.58 avankest 1168:
1.96 avankest 1169: <li><p>Return <code>null</code>.</p></li>
1.58 avankest 1170: </ol>
1.12 avankest 1171:
1.1 avankest 1172: <div class="example">
1.58 avankest 1173: <pre><code>// The following script:
1.1 avankest 1174: var client = new XMLHttpRequest();
1.14 avankest 1175: client.open("GET", "test.txt", true);
1.5 avankest 1176: client.send();
1.12 avankest 1177: client.onreadystatechange = function() {
1.13 avankest 1178: if(this.readyState == 3) {
1.14 avankest 1179: print(client.getResponseHeader("Content-Type"));
1.12 avankest 1180: }
1181: }
1.1 avankest 1182:
1.5 avankest 1183: // ...should output something similar to the following text:
1.58 avankest 1184: Content-Type: text/plain; charset=utf-8</code></pre>
1.1 avankest 1185: </div>
1.5 avankest 1186: </dd>
1.12 avankest 1187:
1.131 avankest 1188: <dt><dfn id="responsetext"><code>responseText</code></dfn> of type
1.22 avankest 1189: <code>DOMString</code>, readonly</dt>
1.12 avankest 1190:
1.5 avankest 1191: <dd>
1.88 avankest 1192: <p>On getting, the user agent <em class="ct">must</em> run the following
1193: steps:</p>
1194:
1195: <ol>
1196: <li><p>If the state is not <span title="LOADING state">LOADING</span> or
1.96 avankest 1197: <span title="DONE state">DONE</span> raise an
1.98 avankest 1198: <code>INVALID_STATE_ERR</code> exception and terminate these
1199: steps.</p></li>
1.12 avankest 1200:
1.88 avankest 1201: <li><p>Return the <span>text response entity body</span>.</p></li>
1202: </ol>
1.5 avankest 1203: </dd>
1.12 avankest 1204:
1.131 avankest 1205: <dt><dfn id="responsexml"><code>responseXML</code></dfn> of type
1.22 avankest 1206: <code>Document</code>, readonly</dt>
1.12 avankest 1207:
1.8 avankest 1208: <dd>
1.75 avankest 1209: <p>On getting, the user agent <em class="ct">must</em> run the following
1210: steps:</p>
1.79 avankest 1211:
1.75 avankest 1212: <ol>
1.96 avankest 1213: <li><p>If the state is not <span title="DONE state">DONE</span> raise an
1.98 avankest 1214: <code>INVALID_STATE_ERR</code> exception and terminate these
1215: steps.</p></li>
1.75 avankest 1216:
1.88 avankest 1217: <li><p>Return the <span>XML response entity body</span>.</p></li>
1.75 avankest 1218: </ol>
1.5 avankest 1219: </dd>
1.12 avankest 1220:
1.131 avankest 1221: <dt><dfn id="status"><code>status</code></dfn> of type <code>unsigned
1.22 avankest 1222: short</code>, readonly</dt>
1.12 avankest 1223:
1.5 avankest 1224: <dd>
1.72 avankest 1225: <p>On getting, if available, it <em class="ct">must</em> return the HTTP
1226: status code sent by the server (typically <code>200</code> for a
1227: successful request). Otherwise, if not available, the user agent
1228: <em class="ct">must</em> raise an <code>INVALID_STATE_ERR</code>
1229: exception.</p>
1.12 avankest 1230: </dd>
1231:
1.131 avankest 1232: <dt><dfn id="statustext"><code>statusText</code></dfn> of type
1.22 avankest 1233: <code>DOMString</code>, readonly</dt>
1.12 avankest 1234:
1.5 avankest 1235: <dd>
1.72 avankest 1236: <p>On getting, if available, it <em class="ct">must</em> return the HTTP
1237: status text sent by the server (appears after the status code). Otherwise,
1238: if not available, the user agent <em class="ct">must</em> raise an
1239: <code>INVALID_STATE_ERR</code> exception.</p>
1.1 avankest 1240: </dd>
1241: </dl>
1.12 avankest 1242:
1.121 avankest 1243:
1244:
1.31 avankest 1245: <h3 id="events">Events for the <code title="">XMLHttpRequest</code>
1246: Object</h3>
1.12 avankest 1247:
1.134 avankest 1248: <p>This section describes the various events that can be dispatched on
1249: objects implementing the <code>XMLHttpRequest</code> interface. For this
1.22 avankest 1250: version of the specification only one event is defined.</p>
1.12 avankest 1251:
1.1 avankest 1252: <dl>
1.131 avankest 1253: <dt><dfn id="readystatechange"><code>readystatechange</code></dfn></dt>
1.24 avankest 1254:
1.72 avankest 1255: <dd>When the user agent dispatches a <code title="">readystatechange</code>
1256: event (as indicated above) it <em class="ct">must not</em> bubble,
1257: <em class="ct">must not</em> be cancelable and <em class="ct">must</em>
1258: implement the <code>Event</code> interface. Its <code>namespaceURI</code>
1259: attribute <em class="ct">must</em> be <code>null</code>.
1260: [<cite><span>DOM3Events</span></cite>]</dd>
1.1 avankest 1261: </dl>
1.32 avankest 1262:
1.31 avankest 1263: <h3 id="exceptions">Exceptions for the <code title="">XMLHttpRequest</code>
1264: Object</h3>
1.138 ! avankest 1265:
! 1266: <p>Several algorithms in this specification may result in an exception
! 1267: being thrown. These exceptions are all part of the group
! 1268: <code>ExceptionCode</code> and use the <code>DOMException</code> object
! 1269: which is defined in DOM Level 3 Core. In addition this specification
! 1270: extends the <code>ExceptionCode</code> group with several new
! 1271: constants as indicated below. [<cite><span>DOM3Core</span></cite>]</p>
1.31 avankest 1272:
1.138 ! avankest 1273: <pre class="idl">const unsigned short <span>SECURITY_ERR</span> = 18;
1.121 avankest 1274: const unsigned short <span>NETWORK_ERR</span> = 101;
1275: const unsigned short <span>ABORT_ERR</span> = 102;</pre>
1.31 avankest 1276:
1.138 ! avankest 1277: <p>The <dfn id="security-err"><code>SECURITY_ERR</code></dfn> exception is
! 1278: raised if an attempt is made to perform an operation or access some data
! 1279: in a way that would be a security risk or a violation of the user agent's
! 1280: security policy.</p>
! 1281:
! 1282: <!-- http://lists.w3.org/Archives/Public/public-webapi/2006May/0027.html -->
! 1283:
! 1284: <p class="note">The <code title="">SECURITY_ERR</code> exception is
! 1285: expected to be eventually folded into an update of the the DOM Level 3
! 1286: Core specification with an equivalent definition and identical constant
! 1287: value. Until that happens it is defined here to guide implementors. (This
! 1288: is also the reason it has a different constant value from the other
! 1289: exceptions.)</p>
! 1290:
1.33 avankest 1291: <p>The <dfn id="network-err"><code>NETWORK_ERR</code></dfn> exception is
1.138 ! avankest 1292: raised when a network error occurs in synchronous requests.</p>
1.121 avankest 1293:
1.138 ! avankest 1294: <p>The <dfn id="abort-err"><code>ABORT_ERR</code></dfn> exception is
! 1295: raised when the user aborts a request in synchronous requests.</p>
1.121 avankest 1296:
1297:
1.11 avankest 1298:
1.29 avankest 1299: <h2 class="no-num" id="notcovered">Not in this Specification</h2>
1300:
1301: <p><em>This section is non normative.</em></p>
1302:
1.72 avankest 1303: <p>This specification does not include the following features which are
1304: being considered for a future version of this specification:</p>
1.29 avankest 1305:
1306: <ul>
1307: <li><code>load</code> event and <code>onload</code> attribute;</li>
1308: <li><code>error</code> event and <code>onerror</code> attribute;</li>
1309: <li><code>progress</code> event and <code>onprogress</code> attribute;</li>
1310: <li><code title="">abort</code> event and <code>onabort</code> attribute;</li>
1311: <li>Timers have been suggested, perhaps an <code>ontimeout</code>
1312: attribute;</li>
1313: <li>Property to disable following redirects;</li>
1.30 avankest 1314: <li><code title="">responseXML</code> for <code>text/html</code>
1315: documents;</li>
1.40 avankest 1316: <li>Cross-site <code title="">XMLHttpRequest</code>;</li>
1.87 avankest 1317: <li><code>responseBody</code> to deal with byte streams;</li>
1.114 avankest 1318: <li><code>overrideMimeType</code> to fix up MIME types;</li>
1.87 avankest 1319: <li><code>getRequestHeader()</code> and
1320: <code>removeRequestHeader()</code>.</li>
1.29 avankest 1321: </ul>
1322:
1.1 avankest 1323: <h2 class="no-num" id="bibref">References</h2>
1.11 avankest 1324:
1.6 avankest 1325: <dl>
1.37 avankest 1326: <dt>[<dfn id="DOM3">DOM3Core</dfn>]</dt>
1.24 avankest 1327:
1.11 avankest 1328: <dd><cite><a href="http://www.w3.org/TR/DOM-Level-3-Core">Document Object
1.92 avankest 1329: Model (DOM) Level 3 Core Specification</a></cite>, A. Le Hors, P. Le
1.117 avankest 1330: Hégaret, L. Wood, G. Nicol, J. Robie, M. Champion, S. Byrne, editors. W3C,
1331: April 2004.</dd>
1.11 avankest 1332:
1.37 avankest 1333: <dt>[<dfn id="DOM3EV">DOM3Events</dfn>]</dt>
1.24 avankest 1334:
1.92 avankest 1335: <dd><cite><a href="http://www.w3.org/TR/DOM-Level-3-Events/">Document
1336: Object Model (DOM) Level 3 Events Specification</a></cite>, Björn Höhrmann,
1.117 avankest 1337: editor. W3C, April 2006.</dd>
1.11 avankest 1338:
1.117 avankest 1339: <dt>[<dfn id="ref-ecmascript">ECMAScript</dfn>]</dt>
1.24 avankest 1340:
1.92 avankest 1341: <dd><cite><a href="http://www.ecma-international.org/publications/standards/Ecma-262.htm">ECMAScript
1342: Language Specification</a></cite>, Third Edition. ECMA, December 1999.</dd>
1.14 avankest 1343:
1.37 avankest 1344: <dt>[<dfn id="ref-rfc2046">RFC2046</dfn>]</dt>
1.24 avankest 1345:
1.19 avankest 1346: <dd><cite><a href="http://ietf.org/rfc/rfc2046">Multipurpose Internet Mail
1.92 avankest 1347: Extensions (MIME) Part Two: Media Types</a></cite>, N. Freed, N.
1348: Borenstein, editors. IETF, November 1996.</dd>
1.14 avankest 1349:
1.37 avankest 1350: <dt>[<dfn id="RFC2119">RFC2119</dfn>]</dt>
1.24 avankest 1351:
1.117 avankest 1352: <dd><cite><a href="http://ietf.org/rfc/rfc2119">Key words for use in RFCs to
1353: Indicate Requirement Levels</a></cite>, S. Bradner. IETF, March 1997.</dd>
1.12 avankest 1354:
1.37 avankest 1355: <dt>[<dfn id="RFC2616">RFC2616</dfn>]</dt>
1.24 avankest 1356:
1.11 avankest 1357: <dd><cite><a href="http://ietf.org/rfc/rfc2616">Hypertext Transfer Protocol
1.92 avankest 1358: -- HTTP/1.1</a></cite>, R. Fielding, J. Gettys, J. Mogul, H. Frystyk, L.
1359: Masinter, P. Leach, T. Berners-Lee, editors. IETF, June 1999.</dd>
1.12 avankest 1360:
1.37 avankest 1361: <dt>[<dfn id="ref-rfc2617">RFC2617</dfn>]</dt>
1.24 avankest 1362:
1.11 avankest 1363: <dd><cite><a href="http://ietf.org/rfc/rfc2617">HTTP Authentication: Basic
1.92 avankest 1364: and Digest Access Authentication</a></cite>, P. Hallam-Baker, J.
1365: Hostetler, S. Lawrence, P. Leach, A. Luotonen, L. Stewart, editors. IETF,
1366: June 1999.</dd>
1.12 avankest 1367:
1.37 avankest 1368: <dt>[<dfn id="ref-rfc2965">RFC2965</dfn>]</dt>
1.24 avankest 1369:
1.19 avankest 1370: <dd><cite><a href="http://ietf.org/rfc/rfc2965">HTTP State Management
1.92 avankest 1371: Mechanism</a></cite>, D. Kristol, L. Montulli, editors. IETF, October
1372: 2000.</dd>
1.19 avankest 1373:
1.37 avankest 1374: <dt>[<dfn id="ref-rfc3986">RFC3986</dfn>]</dt>
1.24 avankest 1375:
1.11 avankest 1376: <dd><cite><a href="http://ietf.org/rfc/rfc3986">Uniform Resource Identifier
1.92 avankest 1377: (URI): Generic Syntax</a></cite>, T. Berners-Lee, R. Fielding, L. Masinter,
1378: editors. IETF, January 2005.</dd>
1.28 avankest 1379:
1.92 avankest 1380: <dt>[<dfn id="ref-window">Window</dfn>]</dt>
1.28 avankest 1381:
1.92 avankest 1382: <dd><cite><a href="http://www.w3.org/TR/Window/">Window Object
1383: 1.0</a></cite>, I. Davis, M. Stachowiak, editors. W3C, April 2006.</dd>
1.41 avankest 1384:
1.92 avankest 1385: <dt>[<dfn id="ref-xml">XML</dfn>]</dt>
1.41 avankest 1386:
1.92 avankest 1387: <dd><cite><a href="http://www.w3.org/TR/xml/">Extensible Markup Language
1388: (XML) 1.0 (Fourth Edition)</a></cite>, T. Bray, J. Paoli, C.
1.117 avankest 1389: Sperberg-McQueen, E. Maler, F. Yergeau, editors. W3C, September 2006.</dd>
1.41 avankest 1390:
1.92 avankest 1391: <dt>[<dfn id="ref-xmlns">XMLNS</dfn>]</dt>
1.41 avankest 1392:
1.92 avankest 1393: <dd><cite><a href="http://www.w3.org/TR/xml-names/">Namespaces in XML
1.117 avankest 1394: (Second Edition)</a></cite>, T. Bray, D. Hollander, A. Layman, R. Tobin,
1395: editors. W3C, August 2006.</dd>
1.1 avankest 1396: </dl>
1.11 avankest 1397:
1.130 avankest 1398: <h2 class="no-num" id="acknowledgments">Acknowledgments</h2>
1.11 avankest 1399:
1.1 avankest 1400: <p><em>This section is non-normative</em></p>
1.12 avankest 1401:
1.7 avankest 1402: <p>The editor would like to thank to the following people who have contributed
1.33 avankest 1403: to this specification (ordered by first name):</p>
1.12 avankest 1404:
1.1 avankest 1405: <ul>
1.112 avankest 1406: <li>Ahmed Kamel</li>
1.22 avankest 1407: <li>Alex Hopmann</li>
1.7 avankest 1408: <li>Alex Vincent</li>
1.15 avankest 1409: <li>Alexey Proskuryakov</li>
1.136 avankest 1410: <li>Asbjørn Ulsberg</li>
1.1 avankest 1411: <li>Boris Zbarsky</li>
1.136 avankest 1412: <li>Björn Höhrmann</li>
1.1 avankest 1413: <li>Cameron McCormack</li>
1414: <li>Christophe Jolif</li>
1415: <li>Charles McCathieNevile</li>
1.54 avankest 1416: <li>Dan Winship</li>
1.136 avankest 1417: <li>David Håsäther</li>
1.1 avankest 1418: <li>Dean Jackson</li>
1.126 avankest 1419: <li>Denis Sureau</li>
1.1 avankest 1420: <li>Doug Schepers</li>
1421: <li>Douglas Livingstone</li>
1.130 avankest 1422: <li>Elliotte Harold</li>
1.112 avankest 1423: <li>Eric Lawrence</li>
1424: <li>Gideon Cohn</li>
1.1 avankest 1425: <li>Gorm Haug Eriksen</li>
1426: <li>Hallvord R. M. Steen</li>
1.136 avankest 1427: <li>Håkon Wium Lie</li>
1.1 avankest 1428: <li>Ian Davis</li>
1429: <li>Ian Hickson</li>
1430: <li>Ivan Herman</li>
1.134 avankest 1431: <li>Jeff Walden</li>
1.136 avankest 1432: <li>Jens Lindström</li>
1.1 avankest 1433: <li>Jim Deegan</li>
1434: <li>Jim Ley</li>
1.112 avankest 1435: <li>Joe Farro</li>
1.1 avankest 1436: <li>Jonas Sicking</li>
1437: <li>Julian Reschke</li>
1438: <li>Karl Dubost</li>
1439: <li>Maciej Stachowiak</li>
1.7 avankest 1440: <li>Magnus Kristiansen</li>
1.1 avankest 1441: <li>Marc Hadley</li>
1.53 avankest 1442: <li>Marcos Caceres</li>
1.87 avankest 1443: <li>Mark Baker</li>
1.1 avankest 1444: <li>Mark Nottingham</li>
1.92 avankest 1445: <li>Mohamed Zergaoui</li>
1.1 avankest 1446: <li>Pawel Glowacki</li>
1447: <li>Robin Berjon</li>
1448: <li>Ruud Steltenpool</li>
1.33 avankest 1449: <li>Simon Pieters</li>
1.125 avankest 1450: <li>Stewart Brodie</li>
1.112 avankest 1451: <li>Sunava Dutta</li>
1452: <li>Zhenbin Xu</li>
1.1 avankest 1453: </ul>
1.12 avankest 1454:
1.1 avankest 1455: <p>Special thanks to the Microsoft employees who first implemented the
1.22 avankest 1456: <code>XMLHttpRequest</code> interface, which was first widely deployed by the
1457: Windows Internet Explorer browser.</p>
1.12 avankest 1458:
1.54 avankest 1459: <p>Special thanks also to the WHATWG for drafting an initial version of this
1.130 avankest 1460: specification in their Web Applications 1.0 document (now renamed to
1461: HTML 5).</p>
1.12 avankest 1462:
1.1 avankest 1463: <p>Thanks also to all those who have helped to improve this specification by
1.22 avankest 1464: sending suggestions and corrections. (Please, keep bugging us with your
1465: issues!)</p>
1.1 avankest 1466: </body>
1467: </html>
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