Annotation of 2006/webapi/XMLHttpRequest/Overview.src.html, revision 1.147
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4: <title>The XMLHttpRequest Object</title>
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1.147 ! avankest 24: <link rel="stylesheet" href="http://www.w3.org/StyleSheets/TR/W3C-[STATUS]">
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:
1.147 ! avankest 32: <h2 class="no-num no-toc" id="pagesubtitle">[LONGSTATUS] [DATE: 3 August 2002]</h2>
1.12 avankest 33:
1.1 avankest 34: <dl>
1.10 avankest 35: <dt>This Version:</dt>
1.147 ! avankest 36: <dd><a href="http://dev.w3.org/2006/webapi/XMLHttpRequest/">http://dev.w3.org/2006/webapi/XMLHttpRequest/</a></dd>
! 37: <!--<dd><a href="[VERSION]/">http://www.w3.org/TR/[YEAR]/WD-XMLHttpRequest-[CDATE]/</a></dd>-->
1.14 avankest 38:
1.10 avankest 39: <dt>Latest Version:</dt>
1.1 avankest 40: <dd><a href="http://www.w3.org/TR/XMLHttpRequest/">http://www.w3.org/TR/XMLHttpRequest/</a></dd>
1.14 avankest 41:
1.10 avankest 42: <dt>Previous Versions:</dt>
1.133 avankest 43: <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 44: <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 45: <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 46: <dd><a href="http://www.w3.org/TR/2006/WD-XMLHttpRequest-20060619/">http://www.w3.org/TR/2006/WD-XMLHttpRequest-20060619/</a></dd>
47: <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 48:
1.1 avankest 49: <dt>Editor:</dt>
50: <dd><a href="http://annevankesteren.nl/">Anne van Kesteren</a>
51: (<a href="http://www.opera.com/">Opera Software ASA</a>)
52: <<a href="mailto:annevk@opera.com">annevk@opera.com</a>></dd>
53: </dl>
1.14 avankest 54:
1.1 avankest 55: <p class="copyright"><a href="http://www.w3.org/Consortium/Legal/ipr-notice#Copyright">Copyright</a>
1.51 avankest 56: © 2007
57: <a href="http://www.w3.org/"><acronym title="World Wide Web Consortium">W3C</acronym></a><sup>®</sup>
58: (<a href="http://www.csail.mit.edu/"><acronym title="Massachusetts Institute of Technology">MIT</acronym></a>,
59: <a href="http://www.ercim.org/"><acronym title="European Research Consortium for Informatics and Mathematics">ERCIM</acronym></a>,
60: <a href="http://www.keio.ac.jp/">Keio</a>), All Rights Reserved. W3C
61: <a href="http://www.w3.org/Consortium/Legal/ipr-notice#Legal_Disclaimer">liability</a>,
62: <a href="http://www.w3.org/Consortium/Legal/ipr-notice#W3C_Trademarks">trademark</a>
63: and
64: <a href="http://www.w3.org/Consortium/Legal/copyright-documents">document
65: use</a> rules apply.</p>
1.1 avankest 66: </div>
1.12 avankest 67:
1.1 avankest 68: <hr>
1.12 avankest 69:
1.1 avankest 70: <h2 class="no-num no-toc" id="specabstract">Abstract</h2>
1.10 avankest 71:
1.22 avankest 72: <p>The <code title="">XMLHttpRequest</code> Object specification defines an
73: <abbr title="Application Programming Interface">API</abbr> that provides
74: scripted client functionality for transferring data between a client and a
75: server.</p>
1.12 avankest 76:
1.1 avankest 77: <h2 class="no-num no-toc" id="sotd">Status of this Document</h2>
1.12 avankest 78:
1.1 avankest 79: <p><em>This section describes the status of this document at the time of its
1.36 avankest 80: publication. Other documents may supersede this document. A list of current
81: W3C publications and the latest revision of this technical report can be
82: found in the <a href="http://www.w3.org/TR/">W3C technical reports index</a>
1.117 avankest 83: at http://www.w3.org/TR/.</em></p>
1.36 avankest 84:
1.63 avankest 85: <!-- change back to Last Call -->
1.147 ! avankest 86: <p>This is the [DATE: 3 August 2002] Working Draft of The
! 87: <code title="">XMLHttpRequest</code> Object specification. Please send
! 88: comments to <a href="mailto:public-webapi@w3.org">public-webapi@w3.org</a>
1.47 avankest 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
1.147 ! avankest 287: identical. If either URI does not not have an ihost component the URIs
! 288: <em class="ct">must</em> not be considered same-origin.
! 289: [<cite><span>RFC3987</span></cite>]</p>
1.80 avankest 290:
291: <h4 id="extensibility">Extensibility</h4>
1.12 avankest 292:
1.81 avankest 293: <p>Extensions of the API defined by this specification are <em>strongly
1.22 avankest 294: discouraged</em>. User agents, Working Groups and other interested parties
1.33 avankest 295: should discuss extensions on a relevant public forum, preferably
1.22 avankest 296: <a href="mailto:public-webapi@w3.org">public-webapi@w3.org</a>.</p>
1.12 avankest 297:
298: <h2 id="xmlhttprequest">The <code title="">XMLHttpRequest</code> Object</h2>
299:
1.58 avankest 300: <p>The <code>XMLHttpRequest</code> object can be used by scripts to
1.22 avankest 301: programmatically connect to their originating server via HTTP.</p>
1.12 avankest 302:
1.1 avankest 303: <p>Objects implementing the <code>XMLHttpRequest</code> interface
1.22 avankest 304: <em class="ct">must</em> also implement the <code>EventTarget</code>
1.58 avankest 305: interface. [<cite><span>DOM3Events</span></cite>]</p>
1.12 avankest 306:
1.58 avankest 307: <p>Objects implementing the <code title="">Window</code> interface
308: <em class="ct">must</em> provide an <code title="">XMLHttpRequest()</code>
309: constructor. [<cite><span>Window</span></cite>]</p>
1.12 avankest 310:
1.1 avankest 311: <div class="example">
1.58 avankest 312: <p>In ECMAScript this can be used as follows:</p>
313:
314: <pre><code>var client = new XMLHttpRequest();</code></pre>
1.1 avankest 315: </div>
1.12 avankest 316:
1.58 avankest 317: <p>When the <code title="">XMLHttpRequest()</code> constructor is invoked a
318: persistent pointer to the associated <code title="">Window</code> object
319: <em class="ct">must</em> be stored on the newly created object. This is the
1.25 avankest 320: <dfn title="Window pointer" id="window-pointer"><code>Window</code>
1.58 avankest 321: pointer</dfn>. The associated <code title="">Window</code> object is the one
1.127 avankest 322: of which the <code title="">XMLHttpRequest</code> constructor was invoked.
323: This <span title="Window pointer">pointer</span> <em class="ct">must</em>
324: persist even if the browsing context in which the <code title="">Window</code>
325: is located is destroyed (by removing it from a parent browsing context, for
326: instance).</p>
1.25 avankest 327:
1.37 avankest 328: <p>The term browsing context is defined by the <cite>Window Object
329: 1.0</cite> specification. [<cite><span>Window</span></cite>]</p>
1.27 avankest 330:
331: <!-- XXX if the document object changes in the browsing context you get an
1.33 avankest 332: exception in some implementations. -->
1.27 avankest 333:
1.58 avankest 334: <div class="example">
1.65 avankest 335: <p>If <var><code>win</code></var> is a <code title="">Window</code> object
336: <var><code>client</code></var> will have a pointer to
337: <var><code>win</code></var> in the following example:</p>
1.58 avankest 338:
1.65 avankest 339: <pre><code>var client = new win.XMLHttpRequest()</code></pre>
1.58 avankest 340: </div>
1.12 avankest 341:
1.58 avankest 342: <pre class="idl">interface <dfn id="xmlhttprequest-object">XMLHttpRequest</dfn> {
343: // event handler
1.70 avankest 344: attribute EventListener <span>onreadystatechange</span>;
1.58 avankest 345:
346: // state
1.71 avankest 347: const unsigned short <span title="UNSENT state">UNSENT</span> = 0;
1.134 avankest 348: const unsigned short <span title="OPENED state">OPENED</span> = 1;
1.123 avankest 349: const unsigned short <span title="HEADERS_RECEIVED state">HEADERS_RECEIVED</span> = 2;
1.86 avankest 350: const unsigned short <span title="LOADING state">LOADING</span> = 3;
1.117 avankest 351: const unsigned short <span title="DONE state">DONE</span> = 4;
1.70 avankest 352: readonly attribute unsigned short <span>readyState</span>;
1.58 avankest 353:
354: // request
1.70 avankest 355: void <span>open</span>(in DOMString <var>method</var>, in DOMString <var>url</var>);
356: void <span>open</span>(in DOMString <var>method</var>, in DOMString <var>url</var>, in boolean <var>async</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>);
358: 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>);
359: void <span>setRequestHeader</span>(in DOMString <var>header</var>, in DOMString <var>value</var>);
360: void <span>send</span>();
361: void <span>send</span>(in DOMString <var>data</var>);
362: void <span>send</span>(in Document <var>data</var>);
363: void <span>abort</span>();
1.58 avankest 364:
365: // response
1.70 avankest 366: DOMString <span>getAllResponseHeaders</span>();
367: DOMString <span>getResponseHeader</span>(in DOMString <var>header</var>);
368: readonly attribute DOMString <span>responseText</span>;
369: readonly attribute Document <span>responseXML</span>;
370: readonly attribute unsigned short <span>status</span>;
371: readonly attribute DOMString <span>statusText</span>;
1.1 avankest 372: };</pre>
1.8 avankest 373:
1.58 avankest 374: <p>The <code>XMLHttpRequest</code> object can be in five states:
1.71 avankest 375: <span title="UNSENT state">UNSENT</span>,
1.134 avankest 376: <span title="OPENED state">OPENED</span>,
1.123 avankest 377: <span title="HEADERS_RECEIVED state">HEADERS_RECEIVED</span>,
1.86 avankest 378: <span title="LOADING state">LOADING</span> and
1.79 avankest 379: <span title="DONE state">DONE</span>. The current state is exposed through
380: the <code>readyState</code> attribute. The method definitions below define
381: when a state transition takes place.</p>
1.58 avankest 382:
383: <p>When constructed, the <code>XMLHttpRequest</code> object
1.71 avankest 384: <em class="ct">must</em> be in the UNSENT state. This state is represented
1.134 avankest 385: by the <dfn id="unsent-state" title="UNSENT state"><code>UNSENT</code></dfn>
1.58 avankest 386: constant, whose value is <code>0</code>.</p>
387:
1.134 avankest 388: <p>The OPENED state is the state of the object when the <code>open()</code>
1.92 avankest 389: method has been successfully invoked. During this state request headers can
1.58 avankest 390: be set using <code>setRequestHeader()</code> and the request can be made
391: using <code>send()</code>. This state is represented by the
1.134 avankest 392: <dfn id="opened-state" title="OPENED state"><code>OPENED</code></dfn> constant,
1.131 avankest 393: whose value is <code>1</code>.</p>
1.58 avankest 394:
1.134 avankest 395: <p>The OPENED state has an associated <dfn id="send-flag"><code>send()</code>
1.104 avankest 396: flag</dfn> which can be either "true" or "false". The initial value of the
397: <code title="">send()</code> flag is "false".</p>
1.87 avankest 398:
1.123 avankest 399: <p>The HEADERS_RECEIVED state is the state of the object when all response
400: headers have been received. This state is represented by the
1.131 avankest 401: <dfn id="headers-received-state" title="HEADERS_RECEIVED state"><code>HEADERS_RECEIVED</code></dfn>
1.123 avankest 402: constant, whose value is <code>2</code>.</p>
403:
404: <p>The LOADING state is the state of the object when the response entity body
405: is being received. This state is represented by the
1.131 avankest 406: <dfn id="loading-state" title="LOADING state"><code>LOADING</code></dfn> constant,
1.86 avankest 407: whose value is <code>3</code>.</p>
1.58 avankest 408:
1.79 avankest 409: <p>The DONE state is the state of the object when either the data transfer
1.58 avankest 410: has been completed or something went wrong during the transfer (infinite
411: redirects for instance). This state is represented by the
1.131 avankest 412: <dfn id="done-state" title="DONE state"><code>DONE</code></dfn> constant,
413: whose value is <code>4</code>.</p>
1.90 avankest 414:
1.124 avankest 415: <p>The DONE state has an associated <dfn id="error-flag">error flag</dfn>
416: which can be either "true" or "false". The initial value of the error flag is
417: "false".</p>
418:
1.88 avankest 419: <p>The <dfn id="response-entity-body">response entity body</dfn> is the
420: fragment of the <span>entity body</span> received so far (LOADING state) or
421: the complete entity body (DONE state). If there is no entity body the
422: response entity body is "null".</p>
423:
424: <p>The <dfn id="text-response-entity-body">text response entity body</dfn>
1.107 avankest 425: is either a <code>DOMString</code> representing the <span>response entity
1.126 avankest 426: body</span> or <code>null</code>. The text response entity body is the return
427: value of the following algorithm:</p>
1.90 avankest 428:
1.88 avankest 429: <ol>
1.107 avankest 430: <li><p>If the response entity body is "null" return <code>null</code> and
431: terminate these steps.</p>
1.90 avankest 432:
1.113 avankest 433: <li><p>Let <var>charset</var> be "null".</p></li>
1.90 avankest 434:
435: <li><p>If there is no <code>Content-Type</code> header or there is a
436: <code>Content-Type</code> header which contains a MIME type that is
1.116 avankest 437: <code>text/xml</code>, <code>application/xml</code> or ends in
438: <code title="">+xml</code> (ignoring any parameters) use the rules set forth
1.126 avankest 439: in the XML specifications to determine the character encoding. Let
1.116 avankest 440: <var>charset</var> be the determined character encoding.</p></li>
1.90 avankest 441:
1.145 avankest 442: <li><p>If there is a <code>Content-Type</code> header which contains a
443: <code>text/html</code> MIME type follow the rules set forth in the
444: HTML 5 specification to determine the character encoding. Let
445: <var>charset</var> be the determined character encoding.
446: [<cite><span>HTML5</span></cite>]</p></li>
1.118 avankest 447:
1.115 avankest 448: <li>
1.140 avankest 449: <p>If the MIME type specified by the <code>Content-Type</code> header
450: contains a <code>charset</code> parameter and <var>charset</var> is
451: "null" let <var>charset</var> be the value of that parameter.</p>
1.118 avankest 452:
1.145 avankest 453: <p class="note">The algorithms described by the XML and HTML
454: specifications already take <code>Content-Type</code> into account.</p>
1.115 avankest 455: </li>
1.118 avankest 456:
1.111 avankest 457: <li>
458: <!-- This stuff is copied from HTML5. Thanks Hixie! -->
1.113 avankest 459: <p>If <var>charset</var> is "null" then, for each of the rows in the
1.127 avankest 460: following table, starting with the first one and going down, if the first
461: bytes of <var>bytes</var> match the bytes given in the first column, then
462: let <var>charset</var> be the encoding given in the cell in the second
463: column of that row. If there is no match <var>charset</var> remains
464: "null".</p>
1.117 avankest 465:
466: <table>
467: <thead>
468: <tr>
1.111 avankest 469: <th>Bytes in Hexadecimal
470: <th>Description
1.117 avankest 471: <tbody>
472: <tr>
1.111 avankest 473: <td>00 00 FE FF
1.117 avankest 474: <td>UTF-32BE BOM
475: <tr>
476: <td>FF FE 00 00
477: <td>UTF-32LE BOM
478: <tr>
479: <td>FE FF
480: <td>UTF-16BE BOM
481: <tr>
482: <td>FF FE
483: <td>UTF-16LE BOM
484: <tr>
485: <td>EF BB BF
486: <td>UTF-8 BOM<!-- nobody uses this
487: <tr>
488: <td>DD 73 66 73
489: <td>UTF-EBCDIC
490: -->
491: </table>
1.111 avankest 492: </li>
493:
1.113 avankest 494: <li><p>If <var>charset</var> is "null" let <var>charset</var> be
495: UTF-8.</p></li>
496:
1.107 avankest 497: <li><p>Return the result of decoding the response entity body using
498: <var>charset</var>. Or, if that fails, return <code>null</code>.</p></li>
1.88 avankest 499: </ol>
1.90 avankest 500:
1.88 avankest 501: <p>The <dfn id="xml-response-entity-body">XML response entity body</dfn> is
1.107 avankest 502: either a <code>Document</code> representing the <span>response entity
1.126 avankest 503: body</span> or <code>null</code>. The XML response entity body is the return
504: value of the following algorithm:</p>
1.90 avankest 505:
1.88 avankest 506: <ol>
1.107 avankest 507: <li><p>If the response entity body is "null" terminate these steps and
508: return <code>null</code>.</p></li>
1.88 avankest 509:
1.103 avankest 510: <li><p>If a <code>Content-Type</code> is present and it does not contain a
511: MIME type (ignoring any parameters) that is <code>text/xml</code>,
1.116 avankest 512: <code>application/xml</code> or ends in <code title="">+xml</code> terminate
513: these steps and return <code>null</code>. (Do not terminate these steps if
514: there is no <code>Content-Type</code> header at all.)</p></li>
1.88 avankest 515:
1.128 avankest 516: <li>
517: <p>Parse the response entity body into a document tree following the
518: rules from the XML specifications. Let the result be <var>parsed
519: document</var>. If this fails (unsupported character encoding, namespace
520: well-formedness error et cetera) terminate these steps return
521: <code>null</code>. [<cite><span>XML</span></cite>]
522: [<cite><span>XMLNS</span></cite>]</p>
523:
524: <p class="note">Scripts in the resulting document tree will not be executed,
525: resources referenced will not be loaded and no associated XSLT will be
526: applied.</p>
527: </li>
1.88 avankest 528:
1.96 avankest 529: <li><p>Return an object implementing the <code>Document</code>
1.88 avankest 530: interface representing the <var>parsed document</var>.</p></li>
531: </ol>
1.58 avankest 532:
1.5 avankest 533: <dl>
1.131 avankest 534: <dt><dfn id="onreadystatechange"><code>onreadystatechange</code></dfn>
1.39 avankest 535: of type <code>EventListener</code></dt>
1.12 avankest 536:
1.1 avankest 537: <dd>
538: <p>An attribute that takes an <code>EventListener</code> as value that
1.58 avankest 539: <em class="ct">must</em> be invoked along with any other appropriate event
540: listeners that are registered on this object when a
1.87 avankest 541: <code>readystatechange</code> event is dispatched on it during the
542: bubbling phase. Its initial value <em class="ct">must</em> be
543: <code>null</code>.</p>
1.1 avankest 544: </dd>
1.12 avankest 545:
1.131 avankest 546: <dt><dfn id="readystate"><code>readyState</code></dfn> of type
1.22 avankest 547: <code>unsigned short</code>, readonly</dt>
1.12 avankest 548:
1.1 avankest 549: <dd>
1.58 avankest 550: <p>The attribute <em class="ct">must</em> be the value of the constant
551: corresponding to the object's current state.</p>
1.1 avankest 552: </dd>
1.12 avankest 553:
1.131 avankest 554: <dt><dfn id="open" title="open"><code>open(<var>method</var>,
1.22 avankest 555: <var>url</var>, <var>async</var>, <var>user</var>,
556: <var>password</var>)</code></dfn>, method</dt>
1.12 avankest 557:
1.1 avankest 558: <dd>
1.58 avankest 559: <p>When invoked, the user agent <em class="ct">must</em> follow the
1.96 avankest 560: following steps (unless otherwise indicated):</p>
1.58 avankest 561:
562: <ol>
1.97 avankest 563: <li><p>If the <var>method</var> argument does not match the
1.58 avankest 564: <dfn><code>Method</code> production</dfn> defined in section 5.1.1 of RFC
1.98 avankest 565: 2616 raise a <code>SYNTAX_ERR</code> exception and terminate these steps.
1.58 avankest 566: [<cite><span>RFC2616</span></cite>]</p></li>
567:
568: <li><p>If the given <var>method</var> is not supported for security
569: reasons the user agent <em class="ct">should</em> raise a
1.98 avankest 570: <code>SECURITY_ERR</code> exception and terminate these steps.</p></li>
1.58 avankest 571:
572: <li><p>Let <var>stored method</var> be <var>method</var>.</p></li>
573:
1.80 avankest 574: <li><p>If <var>method</var>
575: <span title="case-insensitive match">case-insensitively matches</span>
576: <code>GET</code>, <code>POST</code>, <code>HEAD</code>, <code>PUT</code>,
1.96 avankest 577: <code>DELETE</code> or <code>OPTIONS</code> convert it to its uppercase
578: equivalent (by mapping a-z to A-Z) and let <var>stored method</var> be
579: the result.</p></li>
1.68 avankest 580: <!-- WebKit (and supposedly Firefox) also uppercase: CONNECT, COPY,
581: INDEX, LOCK, M-POST, MKCOL, MOVE, PROPFIND, PROPPATCH, TRACE and UNLOCK.
582: Not sure if TRACE and CONNECT are worth it though. They raise a
583: SECURITY_ERR exception anyway... -->
1.58 avankest 584:
585: <li><p>Drop the fragment identifier (if any) from <var>url</var> and let
586: <var>stored url</var> be the result of that operation.</p></li>
587:
1.96 avankest 588: <li><p>If <var>stored url</var> is a relative reference resolve it using
589: the current value of the <code>baseURI</code> attribute of the
590: <code>Document</code> object currently associated with the
591: <span><code>Window</code> pointer</span>. If this fails raise a
1.98 avankest 592: <code>SYNTAX_ERR</code> exception and terminate these steps.</p></li>
1.58 avankest 593:
1.101 avankest 594: <li><p>If <var>stored url</var> contains an unsupported scheme raise a
595: <code>NOT_SUPPORTED_ERR</code> and terminate these steps.</p></li>
1.110 avankest 596:
1.58 avankest 597: <li><p>If the <code>"user:password"</code> format in the
1.141 avankest 598: <code>userinfo</code> production defined in section 3.2.1 of RFC 3986
599: is not supported for the relevant scheme and <var>stored url</var>
600: contains this format raise a <code>SYNTAX_ERR</code> and terminate
601: these steps. [<cite><span>RFC3986</span></cite>]</p></li>
1.58 avankest 602:
603: <li><p>If <var>stored url</var> contains the <code>"user:password"</code>
604: format let <var>stored user</var> be the user part and <var>stored
605: password</var> be the password part.</p></li>
606:
607: <li><p>If <var>stored url</var> just contains the <code>"user"</code>
608: format let <var>stored user</var> be the user part.</p></li>
609:
1.145 avankest 610: <li>
611: <p>If <var>stored url</var> is not of the <span>same-origin</span>
612: as the origin of the <code>Document</code> object associated with the
1.147 ! avankest 613: <span><code>Window</code> pointer</span> the user agent
! 614: <em class="ct">should</em> raise a <code>SECURITY_ERR</code> exception
! 615: and terminate these steps. The term origin is defined by the
! 616: HTML 5 specification. [<cite><span>HTML5</span></cite>]</p>
1.145 avankest 617:
618: <p class="note">The above implies that <code>data:</code> URIs are
619: always loaded.</p>
620: </li>
1.58 avankest 621:
1.145 avankest 622: <li><p>Let <var>async</var> be the value of the <var>async</var>
623: argument or <code>true</code> if it was omitted.</p></li>
1.58 avankest 624:
1.126 avankest 625: <li><p>If the <var>user</var> argument was not omitted, and its syntax
1.145 avankest 626: does not match that specified by the relevant authentication scheme,
627: raise a <code>SYNTAX_ERR</code> exception and terminate these
628: steps.</p></li>
1.14 avankest 629:
1.58 avankest 630: <li>
631: <p>If the <var>user</var> argument was not omitted and is not
1.145 avankest 632: <code>null</code> let <var>stored user</var> be <var>user</var>
633: encoded using the encoding specified in the relevant authentication
634: scheme or UTF-8 if the scheme fails to specify an encoding.</p>
1.14 avankest 635:
1.58 avankest 636: <p class="note">This step overrides any user that may have been set by
637: the <var>url</var> argument.</p>
638: </li>
1.16 avankest 639:
1.58 avankest 640: <li><p>If the <var>user</var> argument was not omitted and is
641: <code>null</code> remove <var>stored user</var>.</p></li>
1.14 avankest 642:
1.145 avankest 643: <li><p>If the <var>password</var> argument was not omitted and its
644: syntax does not match that specified by the relevant authentication
645: scheme raise a <code>SYNTAX_ERR</code> exception and terminate these
646: steps.</p></li>
1.58 avankest 647:
648: <li><p>If the <var>password</var> argument was not omitted and is not
649: <code>null</code> let <var>stored password</var> be <var>password</var>
650: encoded using the encoding specified in the relevant authentication
651: scheme or UTF-8 if the scheme fails to specify an encoding.</p></li>
652:
653: <li><p>If the <var>password</var> argument was not omitted and is
654: <code>null</code> remove <var>stored password</var>.</p></li>
655:
1.108 avankest 656: <li><p><span title="abort send()">Abort the <code>send()</code>
657: algorithm</span>, set <span>response entity body</span> to "null" and
658: reset the list of request headers.<p></li>
1.58 avankest 659:
1.108 avankest 660: <li><p>The user agent <em class="ct">should</em> cancel any network
661: activity for which the object is responsible.</p></li>
1.58 avankest 662: <!-- we can hardly require it... -->
663:
1.145 avankest 664: <li><p>Switch the object to the
665: <span title="OPENED state">OPENED</span> state, set the
666: <span><code>send()</code> flag</span> to "false" and then synchronously
667: dispatch a <code>readystatechange</code> event on the object and return
668: the method call.</p></li>
1.58 avankest 669: </ol>
1.14 avankest 670:
1.19 avankest 671: <p class="note">A future version or extension of this specification will
1.33 avankest 672: most likely define a way of doing cross-site requests.</p>
1.1 avankest 673: </dd>
1.12 avankest 674:
1.131 avankest 675: <dt><dfn id="setrequestheader" title="setrequestheader"><code>setRequestHeader(<var>header</var>,
1.22 avankest 676: <var>value</var>)</code></dfn>, method</dt>
1.12 avankest 677:
1.5 avankest 678: <dd>
1.45 avankest 679: <p>Each request has a list of request headers with associated values. This
680: method can be used to manipulate those values and set new request
681: headers.</p>
682:
1.58 avankest 683: <p>When invoked, the user agent <em class="ct">must</em> follow the
1.96 avankest 684: following steps (unless otherwise indicated):</p>
1.14 avankest 685:
1.58 avankest 686: <ol>
687: <li><p>If the state of the object is not
1.134 avankest 688: <span title="OPENED state">OPENED</span> raise an
1.98 avankest 689: <code>INVALID_STATE_ERR</code> exception and terminate these
690: steps.</p></li>
1.96 avankest 691:
692: <li><p>If the <span><code>send()</code> flag</span> is "true" raise an
1.98 avankest 693: <code>INVALID_STATE_ERR</code> exception and terminate these
694: steps.</p></li>
1.14 avankest 695:
1.97 avankest 696: <li><p>If the <var>header</var> argument does not match the
1.22 avankest 697: <dfn><code>field-name</code> production</dfn> as defined by section 4.2
1.96 avankest 698: of RFC 2616 or is <code>null</code> raise a <code>SYNTAX_ERR</code>
1.98 avankest 699: exception and terminate these steps.
1.96 avankest 700: [<cite><span>RFC2616</span></cite>]</p></li>
701:
1.98 avankest 702: <li><p>If the <var>value</var> argument is <code>null</code> terminate
703: these steps. (Do not raise an exception.)</li>
1.70 avankest 704: <!-- undefined is to be treated as null here... -->
1.79 avankest 705:
1.97 avankest 706: <li><p>If the <var>value</var> argument does not match the
1.22 avankest 707: <dfn><code>field-value</code> production</dfn> as defined by section 4.2
1.98 avankest 708: of RFC 2616 raise a <code>SYNTAX_ERR</code> and terminate these steps.
1.58 avankest 709: [<cite><span>RFC2616</span></cite>]</p></li>
1.14 avankest 710:
1.32 avankest 711: <li>
1.132 avankest 712: <p>For security reasons, these steps <em class="ct">should</em> be
1.98 avankest 713: terminated if the <var>header</var> argument
1.80 avankest 714: <span title="case-insensitive match">case-insensitively matches</span>
715: one of the following headers:</p>
1.58 avankest 716:
1.32 avankest 717: <ul>
718: <li><code>Accept-Charset</code></li>
719: <li><code>Accept-Encoding</code></li>
1.68 avankest 720: <li><code>Connection</code></li>
1.32 avankest 721: <li><code>Content-Length</code></li>
1.68 avankest 722: <li><code>Content-Transfer-Encoding</code></li>
723: <li><code>Date</code></li>
1.32 avankest 724: <li><code>Expect</code></li>
725: <li><code>Host</code></li>
726: <li><code>Keep-Alive</code></li>
727: <li><code>Referer</code></li>
728: <li><code>TE</code></li>
729: <li><code>Trailer</code></li>
730: <li><code>Transfer-Encoding</code></li>
731: <li><code>Upgrade</code></li>
1.68 avankest 732: <li><code>Via</code></li>
1.32 avankest 733: </ul>
734: </li>
1.132 avankest 735:
736: <li><p>Also for security reasons, these steps <em class="ct">should</em> be
737: terminated if the first six characters of the <var>header</var> argument
738: <span title="case-insensitive match">case-insensitively match</span>
739: <code>Proxy-</code>.</p></li>
1.5 avankest 740:
1.58 avankest 741: <li><p>If the <var>header</var> argument is not in the list of request
1.96 avankest 742: headers append the <var>header</var> with its associated <var>value</var>
1.98 avankest 743: to the list and terminate these steps.</p></li>
1.58 avankest 744:
745: <li><p>If the <var>header</var> argument is in the list of request
1.96 avankest 746: headers either use multiple headers, combine the values or use a
747: combination of those (section 4.2, RFC 2616).
748: [<cite><span>RFC2616</span></cite>]</p></li>
749: <!-- XXX it seems UAs always combine the values -->
1.58 avankest 750: </ol>
1.45 avankest 751:
752: <p class="note">See also the <code>send()</code> method regarding user
1.71 avankest 753: agent header handling for caching, authentication, proxies, and
754: cookies.</p>
1.14 avankest 755:
756: <div class="example">
1.58 avankest 757: <pre><code>// The following script:
1.14 avankest 758: var client = new XMLHttpRequest();
759: client.open('GET', 'demo.cgi');
760: client.setRequestHeader('X-Test', 'one');
761: client.setRequestHeader('X-Test', 'two');
762: client.send();
763:
764: // ...would result in the following header being sent:
765: ...
766: X-Test: one, two
1.58 avankest 767: ...</code></pre>
1.14 avankest 768: </div>
1.5 avankest 769: </dd>
1.12 avankest 770:
1.131 avankest 771: <dt><dfn id="send" title="send"><code>send(<var>data</var>)</code></dfn>,
1.22 avankest 772: method</dt>
1.12 avankest 773:
1.17 avankest 774: <dd>
1.58 avankest 775: <p>The <code>send()</code> method initiates the request and its optional
1.106 avankest 776: argument provides the <span>entity body</span>. Authors are strongly
777: encouraged to ensure that they have specified the
778: <code>Content-Type</code> header via <code>setRequestHeader()</code>
779: before invoking <code>send()</code> with a non-<code>null</code>
780: <var>data</var> argument.</p>
1.58 avankest 781:
782: <p>When invoked, the user agent <em class="ct">must</em> follow the
1.108 avankest 783: following steps (unless otherwise noted). Note that this algorithm might
1.126 avankest 784: get aborted if the <code>open()</code> or <code>abort()</code> method is
785: invoked. When the
1.109 avankest 786: <dfn title="abort send()" id="abort-send-algorithm"><code>send()</code>
1.110 avankest 787: algorithm is aborted</dfn> the user agent <em class="ct">must</em>
788: terminate the algorithm after finishing the step it is on.</p>
789:
1.108 avankest 790: <p class="note">The following algorithm can not be aborted through script
791: when <var>async</var> is <code>false</code>. It can only be aborted when
792: <var>async</var> is <code>true</code> and only after the method call has
793: returned.</p>
1.58 avankest 794:
795: <ol>
796: <li><p>If the state of the object is not
1.134 avankest 797: <span title="OPENED state">OPENED</span> raise an
1.98 avankest 798: <code>INVALID_STATE_ERR</code> exception and terminate these
799: steps.</p></li>
1.96 avankest 800:
801: <li><p>If the <span><code>send()</code> flag</span> is "true" raise an
1.98 avankest 802: <code>INVALID_STATE_ERR</code> exception and terminate these
803: steps.</p></li>
1.58 avankest 804:
1.102 avankest 805: <li><p>If <var>async</var> is <code>true</code> set the
1.103 avankest 806: <span><code>send()</code> flag</span> to "true".</p></li>
807:
1.58 avankest 808: <li>
809: <p>If the <var>data</var> argument has not been omitted and is not
1.145 avankest 810: <code>null</code> use it for the <dfn id="entity-body">entity
811: body</dfn> as defined by section 7.2 of RFC 2616 observing the
812: following rules: [<cite><span>RFC2616</span></cite>]</p>
1.58 avankest 813:
1.119 avankest 814: <dl class="switch">
1.58 avankest 815: <dt><var>data</var> is a <code>DOMString</code></dt>
816:
1.96 avankest 817: <dd><p>Encode <var>data</var> using UTF-8 for transmission.</p></dd>
1.58 avankest 818:
819: <dt><var>data</var> is a <code>Document</code>
820:
821: <dd>
1.96 avankest 822: <p>Serialize <var>data</var> into a namespace well-formed XML document
823: and encoded using the encoding given by
824: <code><var>data</var>.xmlEncoding</code>, if specified, or UTF-8
825: otherwise. Or, if this fails because the <code>Document</code>
826: cannot be serialized act as if <var>data</var> is
827: <code>null</code>.</p>
828:
829: <p>If no <code>Content-Type</code> header is in the list of request
1.126 avankest 830: headers append a <code>Content-Type</code> header to the list of request
831: headers with a value of <code>application/xml</code>.</p>
1.58 avankest 832:
833: <p class="note">Subsequent changes to the <code>Document</code> have
834: no effect on what is submitted.</p>
835: </dd>
836:
837: <dt><var>data</var> is not a <code>DOMString</code> or
838: <code>Document</code></dt>
839:
1.96 avankest 840: <dd><p>Use the stringification mechanisms of the host language on
841: <var>data</var> and treat the result as if <var>data</var> is a
842: <code>DOMString</code>. Or, if this fails, act as if <var>data</var> is
843: <code>null</code>.</p></dd>
1.58 avankest 844: </dl>
845:
1.126 avankest 846: <p>If the <var>data</var> argument has been omitted, or is
847: <code>null</code>, no entity body is used in the request.</p>
1.58 avankest 848: </li>
849:
1.71 avankest 850: <li><p>Make a request to <var>stored url</var>, using HTTP method
851: <var>stored method</var>, user <var>stored user</var> (if provided) and
852: password <var>stored password</var> (if provided), taking into account
853: the entity body, list of request headers and the rules listed directly
854: after this set of steps.</p></li>
1.60 avankest 855:
1.67 avankest 856: <li>
1.96 avankest 857: <p>Synchronously dispatch a <code>readystatechange</code> event on the
858: object.</p>
1.67 avankest 859:
1.96 avankest 860: <p class="note">The state of the object does not change. The event is
861: dispatched for historical reasons.</p>
1.67 avankest 862: </li>
863:
1.102 avankest 864: <li><p>If <var>async</var> is <code>true</code> return the
1.98 avankest 865: <code>send()</code> method call. (Do not terminate the steps in the
866: algorithm though.)</p></li>
1.58 avankest 867:
1.117 avankest 868: <li>
1.123 avankest 869: <p>While downloading the resource the following rules are to be
870: observed.</p>
871:
1.119 avankest 872: <dl class="switch">
1.118 avankest 873: <dt>If the response is an HTTP redirect</dt>
874:
875: <dd>
1.145 avankest 876: <p>If the redirect does not violate security (it is
877: <span>same-origin</span> for instance) or infinite loop precautions
878: and the scheme is supported transparently follow the redirect and go
1.118 avankest 879: to the start of this step.</p>
1.145 avankest 880:
881: <p class="note">HTTP places requirements on the user agent regarding
882: the preservation of the request method and entity body during
883: redirects, and also requires users to be notified of certain kinds
884: of automatic redirections.</p>
1.118 avankest 885: <!-- Arguably HTTP should be fixed for the latter case. No browser
886: follows that as far as I know. -->
887:
888: <p>Otherwise, follow the following set of steps:</p>
1.145 avankest 889:
1.118 avankest 890: <ol>
1.124 avankest 891: <li><p>Set the <span>response entity body</span> to "null", the
892: <span>error flag</span> to "true" and reset the list of request
893: headers.</p></li>
1.118 avankest 894:
895: <li><p>Synchronously switch the state to
896: <span title="DONE state">DONE</span>.</p></li>
897:
898: <li><p>If <var>async</var> is set to <code>false</code> raise a
899: <code>NETWORK_ERR</code> exception and terminate the overall
900: algorithm.</p></li>
901:
902: <li><p>Synchronously dispatch a <code>readystatechange</code> event on
903: the object.</p></li>
904:
905: <li><p>Terminate the overall algorithm.</p></li>
906: </ol>
907:
908: <p class="note">It is likely that a future version of the
909: <code>XMLHttpRequest</code> object will dispatch an <code>error</code>
910: event here as well.</p>
911: </dd>
1.117 avankest 912:
1.121 avankest 913:
1.118 avankest 914: <dt>If the user cancels the download</dt>
1.58 avankest 915:
1.118 avankest 916: <dd>
917: <p>Run the following set of steps:</p>
1.60 avankest 918:
1.118 avankest 919: <ol>
1.124 avankest 920: <li><p>Set the <span>response entity body</span> to "null", the
921: <span>error flag</span> to "true" and reset the list of request
922: headers.</p></li>
1.118 avankest 923:
924: <li><p>Synchronously switch the state to
925: <span title="DONE state">DONE</span>.</p></li>
926:
1.121 avankest 927: <li><p>If <var>async</var> is set to <code>false</code> raise an
928: <code>ABORT_ERR</code> exception and terminate the overall
1.118 avankest 929: algorithm.</p></li>
930:
931: <li><p>Synchronously dispatch a <code>readystatechange</code> event on
932: the object.</p></li>
933:
934: <li><p>Terminate the overall algorithm.</p></li>
935: </ol>
1.121 avankest 936:
1.118 avankest 937: <p class="note">It is likely that a future version of the
1.121 avankest 938: <code>XMLHttpRequest</code> object will dispatch an
939: <code title="">abort</code> event here as well.</p>
1.118 avankest 940: </dd>
1.60 avankest 941:
1.121 avankest 942:
1.118 avankest 943: <dt>In case of network errors</dt>
1.60 avankest 944:
1.118 avankest 945: <dd>
1.126 avankest 946: <p>In case of DNS errors, or other type of network errors, run the
947: following set of steps. <span class="note">This does not include HTTP
948: responses that indicate some type of error, such as HTTP status code
949: 410.</span></p>
1.118 avankest 950:
951: <ol>
1.124 avankest 952: <li><p>Set the <span>response entity body</span> to "null", the
953: <span>error flag</span> to "true" and reset the list of request
954: headers.</p></li>
1.118 avankest 955:
956: <li><p>Synchronously switch the state to
957: <span title="DONE state">DONE</span>.</p></li>
958:
959: <li><p>If <var>async</var> is set to <code>false</code> raise a
960: <code>NETWORK_ERR</code> exception and terminate the overall
961: algorithm.</p></li>
962:
963: <li><p>Synchronously dispatch a <code>readystatechange</code> event on
964: the object.</p></li>
965:
966: <li><p>Terminate the overall algorithm.</p></li>
967: </ol>
968:
969: <p class="note">It is likely that a future version of the
970: <code>XMLHttpRequest</code> object will dispatch an <code>error</code>
971: event here as well.</p>
972: </dd>
973:
974: <dt>Once all HTTP headers have been received</dt>
975:
976: <dd>
977: <p>If all HTTP headers have been received, before receiving the message
1.123 avankest 978: body (if any), run the following steps:</p>
1.60 avankest 979:
1.118 avankest 980: <ol>
981: <li><p>Synchronously switch the state to
1.123 avankest 982: <span title="HEADERS_RECEIVED state">HEADERS_RECEIVED</span>.</p></li>
1.118 avankest 983:
984: <li><p>Synchronously dispatch a <code>readystatechange</code> event on
985: the object.</p></li>
1.123 avankest 986: </ol>
987: </dd>
988:
989: <dt>Once the first byte (or more) of the response entity body has been
990: received</dt>
991: <dt>If there is no response entity body</dt>
992:
993: <dd>
994: <p>Once the first byte of the response entity body has been received or
995: in case there is no response entity body, run the following steps:</p>
996:
997: <ol>
1.118 avankest 998: <li><p>Synchronously switch the state to
999: <span title="LOADING state">LOADING</span>.</p></li>
1000:
1001: <li><p>Synchronously dispatch a <code>readystatechange</code> event on
1002: the object.</p></li>
1003: </ol>
1004: </dd>
1005: </dl>
1006:
1.124 avankest 1007: <p>Finally, once the complete resource has been downloaded go to the next
1.118 avankest 1008: step.</p>
1.58 avankest 1009: </li>
1010:
1.82 avankest 1011: <li><p>When the request has successfully completed loading, synchronously
1.96 avankest 1012: switch the state to <span title="DONE state">DONE</span> and then
1013: synchronously dispatch a <code>readystatechange</code> event on the
1014: object and return the method call in case of <var>async</var> being
1015: <code>false</code>.</p></li>
1.58 avankest 1016: </ol>
1.14 avankest 1017:
1.91 avankest 1018: <p>If the user agent allows the user to configure a proxy it
1.22 avankest 1019: <em class="ct">should</em> modify the request appropriately;
1.42 avankest 1020: <abbr title="in other words">i.e.</abbr>, connect to the proxy host
1021: instead of the origin server, modify the <code>Request-Line</code> and
1022: send <code>Proxy-Authorization</code> headers as specified.</p>
1.12 avankest 1023:
1.42 avankest 1024: <p>If the user agent supports HTTP Authentication it
1.22 avankest 1025: <em class="ct">should</em> consider requests originating from this object
1.42 avankest 1026: to be part of the protection space that includes the accessed URIs and
1027: send <code>Authorization</code> headers and handle <code>401
1.137 avankest 1028: Unauthorized</code> requests appropriately. If authentication fails, user
1.42 avankest 1029: agents <em class="ct">should</em> prompt the users for credentials.
1030: [<cite><span>RFC2617</span></cite>]</p>
1031:
1.57 avankest 1032: <p>If the user agent supports HTTP State Management it
1.42 avankest 1033: <em class="ct">should</em> persist, discard and send cookies (as received
1034: in the <code>Set-Cookie</code> and <code>Set-Cookie2</code> response
1035: headers, and sent in the <code>Cookie</code> header) as applicable.
1036: [<cite><span>RFC2965</span></cite>]</p>
1037:
1038: <p>If the user agent implements a HTTP cache it <em class="ct">should</em>
1039: respect <code>Cache-Control</code> request headers set by the script
1040: (<abbr title="for example">e.g.</abbr>, <code>Cache-Control:
1041: no-cache</code> bypasses the cache). It <em class="ct">must not</em> send
1042: <code>Cache-Control</code> or <code>Pragma</code> request headers
1.137 avankest 1043: automatically unless the user explicitly requests such behavior
1.42 avankest 1044: (<abbr>e.g.</abbr>, by (force-)reloading the page). <code>304 Not
1.22 avankest 1045: Modified</code> responses that are a result of a user agent generated
1046: conditional request <em class="ct">must</em> be presented as <code>200
1.57 avankest 1047: OK</code> responses with the appropriate content. The user agent
1.39 avankest 1048: <em class="ct">must</em> allow scripts to override automatic cache
1.22 avankest 1049: validation by setting request headers (e.g., <code>If-None-Match</code>,
1.42 avankest 1050: <code>If-Modified-Since</code>), in which case <code>304 Not
1051: Modified</code> responses <em class="ct">must</em> be passed through.
1052: [<cite><span>RFC2616</span></cite>]</p>
1.12 avankest 1053:
1.8 avankest 1054: <p>If the user agent implements server-driven content-negotiation
1.42 avankest 1055: it <em class="ct">should</em> set <code>Accept-Language</code>,
1.22 avankest 1056: <code>Accept-Encoding</code> and <code>Accept-Charset</code> headers as
1057: appropriate; it <em class="ct">must not</em> automatically set the
1058: <code>Accept</code> header. Responses to such requests
1.127 avankest 1059: <em class="ct">must</em> have the content-encodings automatically
1.42 avankest 1060: decoded. [<cite><span>RFC2616</span></cite>]</p>
1.8 avankest 1061: </dd>
1.12 avankest 1062:
1.131 avankest 1063: <dt><dfn id="abort"><code>abort()</code></dfn>, method</dt>
1.12 avankest 1064:
1.5 avankest 1065: <dd>
1.60 avankest 1066: <p>When invoked, the user agent <em class="ct">must</em> run the following
1.96 avankest 1067: steps (unless otherwise noted):</p>
1.60 avankest 1068:
1069: <ol>
1.108 avankest 1070: <li><p><span title="abort send()">Abort the <code>send()</code>
1071: algorithm</span>, set the <span>response entity body</span> to "null",
1.135 avankest 1072: the <span>error flag</span> to "true" and remove any registered request
1073: headers.</p></li>
1.60 avankest 1074:
1.108 avankest 1075: <li><p>The user agent <em class="ct">should</em> cancel any network
1076: activity for which the object is responsible.</p></li>
1.60 avankest 1077:
1.83 avankest 1078: <li>
1.85 avankest 1079: <p>If the state is <span title="UNSENT state">UNSENT</span>,
1.134 avankest 1080: <span title="OPENED state">OPENED</span> and the <span><code>send()</code>
1.87 avankest 1081: flag</span> is "false", or <span title="DONE state">DONE</span> go to
1082: the next step.</p>
1.85 avankest 1083:
1.135 avankest 1084: <p>Otherwise, switch the state to
1085: <span title="DONE state">DONE</span>, set the
1086: <span><code>send()</code> flag</span> to "false" and synchronously
1087: dispatch a <code>readystatechange</code> event on the object.</p>
1.83 avankest 1088: </li>
1.67 avankest 1089:
1.60 avankest 1090: <li>
1.97 avankest 1091: <p>Switch the state to <span title="UNSENT state">UNSENT</span>. (Do not
1.71 avankest 1092: dispatch the <code>readystatechange</code> event.)</p>
1.60 avankest 1093:
1.82 avankest 1094: <p class="note">It is likely that a future version of the
1095: <code>XMLHttpRequest</code> object will dispatch an
1096: <code title="">abort</code> event here as well.</p>
1.60 avankest 1097: </li>
1098: </ol>
1.5 avankest 1099: </dd>
1.12 avankest 1100:
1.131 avankest 1101: <dt><dfn id="getallresponseheaders"><code>getAllResponseHeaders()</code></dfn>,
1.22 avankest 1102: method</dt>
1.12 avankest 1103:
1.5 avankest 1104: <dd>
1.60 avankest 1105: <p>When invoked, the user agent <em class="ct">must</em> run
1.58 avankest 1106: the following steps:</p>
1107:
1108: <ol>
1.124 avankest 1109: <li><p>If the state is <span title="UNSENT state">UNSENT</span> or
1.134 avankest 1110: <span title="OPENED state">OPENED</span> raise an
1.98 avankest 1111: <code>INVALID_STATE_ERR</code> exception and terminate these
1112: steps.</p></li>
1.124 avankest 1113:
1114: <li><p>If the <span>error flag</span> is "true" return <code>null</code>
1115: and terminate these steps.</p></li>
1.96 avankest 1116:
1117: <li><p>Return all the HTTP headers, as a single string, with each header
1118: line separated by a U+000D CR U+000A LF pair excluding the status
1119: line.</p></li>
1.58 avankest 1120: </ol>
1.24 avankest 1121:
1.5 avankest 1122: <div class="example">
1.58 avankest 1123: <pre><code>// The following script:
1.5 avankest 1124: var client = new XMLHttpRequest();
1.14 avankest 1125: client.open("GET", "test.txt", true);
1.5 avankest 1126: client.send();
1.12 avankest 1127: client.onreadystatechange = function() {
1.13 avankest 1128: if(this.readyState == 3) {
1.12 avankest 1129: print(this.getAllResponseHeaders());
1130: }
1131: }
1.5 avankest 1132:
1133: // ...should output something similar to the following text:
1134: Date: 2004年10月24日 04:58:38 GMT
1135: Server: Apache/1.3.31 (Unix)
1136: Keep-Alive: timeout=15, max=99
1137: Connection: Keep-Alive
1138: Transfer-Encoding: chunked
1.58 avankest 1139: Content-Type: text/plain; charset=utf-8</code></pre>
1.5 avankest 1140: </div>
1141: </dd>
1.12 avankest 1142:
1.131 avankest 1143: <dt><dfn id="getresponseheader" title="getresponseheader"><code>getResponseHeader(<var>header</var>)</code></dfn>,
1.22 avankest 1144: method</dt>
1.12 avankest 1145:
1.1 avankest 1146: <dd>
1.58 avankest 1147: <p>When the method is invoked, the user agent <em class="ct">must</em> run
1148: the following steps:</p>
1.14 avankest 1149:
1.58 avankest 1150: <ol>
1.124 avankest 1151: <li><p>If the state is <span title="UNSENT state">UNSENT</span> or
1.134 avankest 1152: <span title="OPENED state">OPENED</span> raise an
1.98 avankest 1153: <code>INVALID_STATE_ERR</code> exception and terminate these
1154: steps.</p></li>
1.58 avankest 1155:
1.124 avankest 1156: <li><p>If the <span>error flag</span> is "true" return <code>null</code>
1157: and terminate these steps.</p></li>
1158:
1.97 avankest 1159: <li><p>If the <var>header</var> argument does not match the
1.96 avankest 1160: <span><code>field-name</code> production</span> raise a
1.98 avankest 1161: <code>SYNTAX_ERR</code> exception and terminate these steps.</p></li>
1.58 avankest 1162:
1.80 avankest 1163: <li><p>If the <var>header</var> argument
1164: <span title="case-insensitive match">case-insensitively matches</span>
1.127 avankest 1165: multiple HTTP headers for the last request sent, return the values of
1.96 avankest 1166: these headers as a single concatenated string separated from each other
1.98 avankest 1167: by an U+002C COMMA followed by an U+0020 SPACE and terminate these
1.96 avankest 1168: steps.</p></li>
1.58 avankest 1169:
1.80 avankest 1170: <li><p>If the <var>header</var> argument
1171: <span title="case-insensitive match">case-insensitively matches</span> a
1.96 avankest 1172: single HTTP header for the last request sent return the value of that
1.98 avankest 1173: header and terminate these steps.</p></li>
1.58 avankest 1174:
1.96 avankest 1175: <li><p>Return <code>null</code>.</p></li>
1.58 avankest 1176: </ol>
1.12 avankest 1177:
1.1 avankest 1178: <div class="example">
1.58 avankest 1179: <pre><code>// The following script:
1.1 avankest 1180: var client = new XMLHttpRequest();
1.14 avankest 1181: client.open("GET", "test.txt", true);
1.5 avankest 1182: client.send();
1.12 avankest 1183: client.onreadystatechange = function() {
1.13 avankest 1184: if(this.readyState == 3) {
1.14 avankest 1185: print(client.getResponseHeader("Content-Type"));
1.12 avankest 1186: }
1187: }
1.1 avankest 1188:
1.5 avankest 1189: // ...should output something similar to the following text:
1.58 avankest 1190: Content-Type: text/plain; charset=utf-8</code></pre>
1.1 avankest 1191: </div>
1.5 avankest 1192: </dd>
1.12 avankest 1193:
1.131 avankest 1194: <dt><dfn id="responsetext"><code>responseText</code></dfn> of type
1.22 avankest 1195: <code>DOMString</code>, readonly</dt>
1.12 avankest 1196:
1.5 avankest 1197: <dd>
1.88 avankest 1198: <p>On getting, the user agent <em class="ct">must</em> run the following
1199: steps:</p>
1200:
1201: <ol>
1202: <li><p>If the state is not <span title="LOADING state">LOADING</span> or
1.96 avankest 1203: <span title="DONE state">DONE</span> raise an
1.98 avankest 1204: <code>INVALID_STATE_ERR</code> exception and terminate these
1205: steps.</p></li>
1.12 avankest 1206:
1.88 avankest 1207: <li><p>Return the <span>text response entity body</span>.</p></li>
1208: </ol>
1.5 avankest 1209: </dd>
1.12 avankest 1210:
1.131 avankest 1211: <dt><dfn id="responsexml"><code>responseXML</code></dfn> of type
1.22 avankest 1212: <code>Document</code>, readonly</dt>
1.12 avankest 1213:
1.8 avankest 1214: <dd>
1.75 avankest 1215: <p>On getting, the user agent <em class="ct">must</em> run the following
1216: steps:</p>
1.79 avankest 1217:
1.75 avankest 1218: <ol>
1.96 avankest 1219: <li><p>If the state is not <span title="DONE state">DONE</span> raise an
1.98 avankest 1220: <code>INVALID_STATE_ERR</code> exception and terminate these
1221: steps.</p></li>
1.75 avankest 1222:
1.88 avankest 1223: <li><p>Return the <span>XML response entity body</span>.</p></li>
1.75 avankest 1224: </ol>
1.5 avankest 1225: </dd>
1.12 avankest 1226:
1.131 avankest 1227: <dt><dfn id="status"><code>status</code></dfn> of type <code>unsigned
1.22 avankest 1228: short</code>, readonly</dt>
1.12 avankest 1229:
1.5 avankest 1230: <dd>
1.72 avankest 1231: <p>On getting, if available, it <em class="ct">must</em> return the HTTP
1232: status code sent by the server (typically <code>200</code> for a
1233: successful request). Otherwise, if not available, the user agent
1234: <em class="ct">must</em> raise an <code>INVALID_STATE_ERR</code>
1235: exception.</p>
1.12 avankest 1236: </dd>
1237:
1.131 avankest 1238: <dt><dfn id="statustext"><code>statusText</code></dfn> of type
1.22 avankest 1239: <code>DOMString</code>, readonly</dt>
1.12 avankest 1240:
1.5 avankest 1241: <dd>
1.72 avankest 1242: <p>On getting, if available, it <em class="ct">must</em> return the HTTP
1243: status text sent by the server (appears after the status code). Otherwise,
1244: if not available, the user agent <em class="ct">must</em> raise an
1245: <code>INVALID_STATE_ERR</code> exception.</p>
1.1 avankest 1246: </dd>
1247: </dl>
1.12 avankest 1248:
1.121 avankest 1249:
1.31 avankest 1250: <h3 id="events">Events for the <code title="">XMLHttpRequest</code>
1251: Object</h3>
1.12 avankest 1252:
1.134 avankest 1253: <p>This section describes the various events that can be dispatched on
1254: objects implementing the <code>XMLHttpRequest</code> interface. For this
1.22 avankest 1255: version of the specification only one event is defined.</p>
1.12 avankest 1256:
1.1 avankest 1257: <dl>
1.131 avankest 1258: <dt><dfn id="readystatechange"><code>readystatechange</code></dfn></dt>
1.24 avankest 1259:
1.72 avankest 1260: <dd>When the user agent dispatches a <code title="">readystatechange</code>
1261: event (as indicated above) it <em class="ct">must not</em> bubble,
1262: <em class="ct">must not</em> be cancelable and <em class="ct">must</em>
1263: implement the <code>Event</code> interface. Its <code>namespaceURI</code>
1264: attribute <em class="ct">must</em> be <code>null</code>.
1265: [<cite><span>DOM3Events</span></cite>]</dd>
1.1 avankest 1266: </dl>
1.32 avankest 1267:
1.31 avankest 1268: <h3 id="exceptions">Exceptions for the <code title="">XMLHttpRequest</code>
1269: Object</h3>
1.138 avankest 1270:
1271: <p>Several algorithms in this specification may result in an exception
1272: being thrown. These exceptions are all part of the group
1273: <code>ExceptionCode</code> and use the <code>DOMException</code> object
1274: which is defined in DOM Level 3 Core. In addition this specification
1275: extends the <code>ExceptionCode</code> group with several new
1276: constants as indicated below. [<cite><span>DOM3Core</span></cite>]</p>
1.31 avankest 1277:
1.138 avankest 1278: <pre class="idl">const unsigned short <span>SECURITY_ERR</span> = 18;
1.121 avankest 1279: const unsigned short <span>NETWORK_ERR</span> = 101;
1280: const unsigned short <span>ABORT_ERR</span> = 102;</pre>
1.31 avankest 1281:
1.138 avankest 1282: <p>The <dfn id="security-err"><code>SECURITY_ERR</code></dfn> exception is
1283: raised if an attempt is made to perform an operation or access some data
1284: in a way that would be a security risk or a violation of the user agent's
1285: security policy.</p>
1286:
1287: <!-- http://lists.w3.org/Archives/Public/public-webapi/2006May/0027.html -->
1288:
1289: <p class="note">The <code title="">SECURITY_ERR</code> exception is
1290: expected to be eventually folded into an update of the the DOM Level 3
1291: Core specification with an equivalent definition and identical constant
1292: value. Until that happens it is defined here to guide implementors. (This
1293: is also the reason it has a different constant value from the other
1294: exceptions.)</p>
1295:
1.33 avankest 1296: <p>The <dfn id="network-err"><code>NETWORK_ERR</code></dfn> exception is
1.138 avankest 1297: raised when a network error occurs in synchronous requests.</p>
1.121 avankest 1298:
1.138 avankest 1299: <p>The <dfn id="abort-err"><code>ABORT_ERR</code></dfn> exception is
1300: raised when the user aborts a request in synchronous requests.</p>
1.121 avankest 1301:
1302:
1.11 avankest 1303:
1.29 avankest 1304: <h2 class="no-num" id="notcovered">Not in this Specification</h2>
1305:
1.143 avankest 1306: <p><em>This section is non-normative.</em></p>
1.29 avankest 1307:
1.72 avankest 1308: <p>This specification does not include the following features which are
1309: being considered for a future version of this specification:</p>
1.29 avankest 1310:
1311: <ul>
1312: <li><code>load</code> event and <code>onload</code> attribute;</li>
1313: <li><code>error</code> event and <code>onerror</code> attribute;</li>
1314: <li><code>progress</code> event and <code>onprogress</code> attribute;</li>
1315: <li><code title="">abort</code> event and <code>onabort</code> attribute;</li>
1316: <li>Timers have been suggested, perhaps an <code>ontimeout</code>
1317: attribute;</li>
1318: <li>Property to disable following redirects;</li>
1.30 avankest 1319: <li><code title="">responseXML</code> for <code>text/html</code>
1320: documents;</li>
1.40 avankest 1321: <li>Cross-site <code title="">XMLHttpRequest</code>;</li>
1.87 avankest 1322: <li><code>responseBody</code> to deal with byte streams;</li>
1.114 avankest 1323: <li><code>overrideMimeType</code> to fix up MIME types;</li>
1.87 avankest 1324: <li><code>getRequestHeader()</code> and
1325: <code>removeRequestHeader()</code>.</li>
1.29 avankest 1326: </ul>
1327:
1.1 avankest 1328: <h2 class="no-num" id="bibref">References</h2>
1.11 avankest 1329:
1.6 avankest 1330: <dl>
1.145 avankest 1331: <dt>[<dfn id="ref-dom3core">DOM3Core</dfn>]</dt>
1.24 avankest 1332:
1.11 avankest 1333: <dd><cite><a href="http://www.w3.org/TR/DOM-Level-3-Core">Document Object
1.92 avankest 1334: Model (DOM) Level 3 Core Specification</a></cite>, A. Le Hors, P. Le
1.139 avankest 1335: Hégaret, L. Wood, G. Nicol, J. Robie, M. Champion, S. Byrne,
1336: editors. W3C, April 2004.</dd>
1.11 avankest 1337:
1.145 avankest 1338: <dt>[<dfn id="ref-dom3events">DOM3Events</dfn>]</dt>
1.24 avankest 1339:
1.92 avankest 1340: <dd><cite><a href="http://www.w3.org/TR/DOM-Level-3-Events/">Document
1.139 avankest 1341: Object Model (DOM) Level 3 Events Specification</a></cite> (work in
1342: progress), Björn Höhrmann, editor. W3C, April 2006.</dd>
1.11 avankest 1343:
1.117 avankest 1344: <dt>[<dfn id="ref-ecmascript">ECMAScript</dfn>]</dt>
1.24 avankest 1345:
1.92 avankest 1346: <dd><cite><a href="http://www.ecma-international.org/publications/standards/Ecma-262.htm">ECMAScript
1347: Language Specification</a></cite>, Third Edition. ECMA, December 1999.</dd>
1.142 avankest 1348:
1.145 avankest 1349: <dt>[<dfn id="ref-html5">HTML5</dfn>]</dt>
1.142 avankest 1350:
1351: <dd><cite><a href="http://www.whatwg.org/specs/web-apps/current-work/">HTML 5</a></cite>
1.146 avankest 1352: (work in progress), Ian Hickson, editor. WHATWG, 2007.</dd>
1.14 avankest 1353:
1.145 avankest 1354: <dt>[<dfn id="ref-rfc2119">RFC2119</dfn>]</dt>
1.24 avankest 1355:
1.117 avankest 1356: <dd><cite><a href="http://ietf.org/rfc/rfc2119">Key words for use in RFCs to
1357: Indicate Requirement Levels</a></cite>, S. Bradner. IETF, March 1997.</dd>
1.12 avankest 1358:
1.145 avankest 1359: <dt>[<dfn id="ref-rfc2616">RFC2616</dfn>]</dt>
1.24 avankest 1360:
1.11 avankest 1361: <dd><cite><a href="http://ietf.org/rfc/rfc2616">Hypertext Transfer Protocol
1.92 avankest 1362: -- HTTP/1.1</a></cite>, R. Fielding, J. Gettys, J. Mogul, H. Frystyk, L.
1363: Masinter, P. Leach, T. Berners-Lee, editors. IETF, June 1999.</dd>
1.12 avankest 1364:
1.37 avankest 1365: <dt>[<dfn id="ref-rfc2617">RFC2617</dfn>]</dt>
1.24 avankest 1366:
1.11 avankest 1367: <dd><cite><a href="http://ietf.org/rfc/rfc2617">HTTP Authentication: Basic
1.92 avankest 1368: and Digest Access Authentication</a></cite>, P. Hallam-Baker, J.
1369: Hostetler, S. Lawrence, P. Leach, A. Luotonen, L. Stewart, editors. IETF,
1370: June 1999.</dd>
1.12 avankest 1371:
1.37 avankest 1372: <dt>[<dfn id="ref-rfc2965">RFC2965</dfn>]</dt>
1.24 avankest 1373:
1.19 avankest 1374: <dd><cite><a href="http://ietf.org/rfc/rfc2965">HTTP State Management
1.92 avankest 1375: Mechanism</a></cite>, D. Kristol, L. Montulli, editors. IETF, October
1376: 2000.</dd>
1.19 avankest 1377:
1.37 avankest 1378: <dt>[<dfn id="ref-rfc3986">RFC3986</dfn>]</dt>
1.24 avankest 1379:
1.11 avankest 1380: <dd><cite><a href="http://ietf.org/rfc/rfc3986">Uniform Resource Identifier
1.92 avankest 1381: (URI): Generic Syntax</a></cite>, T. Berners-Lee, R. Fielding, L. Masinter,
1382: editors. IETF, January 2005.</dd>
1.141 avankest 1383:
1384: <dt>[<dfn id="ref-rfc3987">RFC3987</dfn>]</dt>
1385:
1386: <dd><cite><a href="http://ietf.org/rfc/rfc3987">Internationalized
1387: Resource Identifiers (IRIs)</a></cite>, M. Duerst, M. Suignard, editors.
1388: IETF, January 2005.</dd>
1.28 avankest 1389:
1.92 avankest 1390: <dt>[<dfn id="ref-window">Window</dfn>]</dt>
1.28 avankest 1391:
1.92 avankest 1392: <dd><cite><a href="http://www.w3.org/TR/Window/">Window Object
1.139 avankest 1393: 1.0</a></cite> (work in progress), I. Davis, M. Stachowiak, editors. W3C,
1394: April 2006.</dd>
1.41 avankest 1395:
1.92 avankest 1396: <dt>[<dfn id="ref-xml">XML</dfn>]</dt>
1.41 avankest 1397:
1.92 avankest 1398: <dd><cite><a href="http://www.w3.org/TR/xml/">Extensible Markup Language
1399: (XML) 1.0 (Fourth Edition)</a></cite>, T. Bray, J. Paoli, C.
1.117 avankest 1400: Sperberg-McQueen, E. Maler, F. Yergeau, editors. W3C, September 2006.</dd>
1.41 avankest 1401:
1.92 avankest 1402: <dt>[<dfn id="ref-xmlns">XMLNS</dfn>]</dt>
1.41 avankest 1403:
1.92 avankest 1404: <dd><cite><a href="http://www.w3.org/TR/xml-names/">Namespaces in XML
1.117 avankest 1405: (Second Edition)</a></cite>, T. Bray, D. Hollander, A. Layman, R. Tobin,
1406: editors. W3C, August 2006.</dd>
1.1 avankest 1407: </dl>
1.11 avankest 1408:
1.130 avankest 1409: <h2 class="no-num" id="acknowledgments">Acknowledgments</h2>
1.11 avankest 1410:
1.1 avankest 1411: <p><em>This section is non-normative</em></p>
1.12 avankest 1412:
1.7 avankest 1413: <p>The editor would like to thank to the following people who have contributed
1.33 avankest 1414: to this specification (ordered by first name):</p>
1.12 avankest 1415:
1.1 avankest 1416: <ul>
1.112 avankest 1417: <li>Ahmed Kamel</li>
1.22 avankest 1418: <li>Alex Hopmann</li>
1.7 avankest 1419: <li>Alex Vincent</li>
1.15 avankest 1420: <li>Alexey Proskuryakov</li>
1.136 avankest 1421: <li>Asbjørn Ulsberg</li>
1.1 avankest 1422: <li>Boris Zbarsky</li>
1.136 avankest 1423: <li>Björn Höhrmann</li>
1.1 avankest 1424: <li>Cameron McCormack</li>
1425: <li>Christophe Jolif</li>
1426: <li>Charles McCathieNevile</li>
1.54 avankest 1427: <li>Dan Winship</li>
1.136 avankest 1428: <li>David Håsäther</li>
1.1 avankest 1429: <li>Dean Jackson</li>
1.126 avankest 1430: <li>Denis Sureau</li>
1.1 avankest 1431: <li>Doug Schepers</li>
1432: <li>Douglas Livingstone</li>
1.130 avankest 1433: <li>Elliotte Harold</li>
1.112 avankest 1434: <li>Eric Lawrence</li>
1435: <li>Gideon Cohn</li>
1.1 avankest 1436: <li>Gorm Haug Eriksen</li>
1437: <li>Hallvord R. M. Steen</li>
1.136 avankest 1438: <li>Håkon Wium Lie</li>
1.1 avankest 1439: <li>Ian Davis</li>
1440: <li>Ian Hickson</li>
1441: <li>Ivan Herman</li>
1.134 avankest 1442: <li>Jeff Walden</li>
1.136 avankest 1443: <li>Jens Lindström</li>
1.1 avankest 1444: <li>Jim Deegan</li>
1445: <li>Jim Ley</li>
1.112 avankest 1446: <li>Joe Farro</li>
1.1 avankest 1447: <li>Jonas Sicking</li>
1448: <li>Julian Reschke</li>
1449: <li>Karl Dubost</li>
1450: <li>Maciej Stachowiak</li>
1.7 avankest 1451: <li>Magnus Kristiansen</li>
1.1 avankest 1452: <li>Marc Hadley</li>
1.53 avankest 1453: <li>Marcos Caceres</li>
1.87 avankest 1454: <li>Mark Baker</li>
1.1 avankest 1455: <li>Mark Nottingham</li>
1.92 avankest 1456: <li>Mohamed Zergaoui</li>
1.1 avankest 1457: <li>Pawel Glowacki</li>
1458: <li>Robin Berjon</li>
1459: <li>Ruud Steltenpool</li>
1.33 avankest 1460: <li>Simon Pieters</li>
1.125 avankest 1461: <li>Stewart Brodie</li>
1.112 avankest 1462: <li>Sunava Dutta</li>
1463: <li>Zhenbin Xu</li>
1.1 avankest 1464: </ul>
1.12 avankest 1465:
1.1 avankest 1466: <p>Special thanks to the Microsoft employees who first implemented the
1.143 avankest 1467: <code title="">XMLHttpRequest</code> interface, which was first widely
1468: deployed by the Windows Internet Explorer browser.</p>
1.12 avankest 1469:
1.143 avankest 1470: <p>Special thanks also to the WHATWG for drafting an initial version of
1471: this specification in their Web Applications 1.0 document (now renamed to
1472: HTML 5). [<cite><span>HTML5</span></cite>]</p>
1.12 avankest 1473:
1.143 avankest 1474: <p>Thanks also to all those who have helped to improve this specification
1475: by sending suggestions and corrections. (Please, keep bugging us with your
1.22 avankest 1476: issues!)</p>
1.1 avankest 1477: </body>
1478: </html>
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