- From: CVS User abarsto <cvsmail@w3.org>
- Date: Mon, 15 Jul 2013 17:06:33 +0000
- To: public-html-commits@w3.org
Update of /sources/public/html5/webstorage/publish In directory roscoe:/tmp/cvs-serv32456 Added Files: REC-webstorage-2013-July.html Log Message: Web Storage July 2013 RECommendation --- /sources/public/html5/webstorage/publish/REC-webstorage-2013-July.html 2013/07/15 17:06:33 NONE +++ /sources/public/html5/webstorage/publish/REC-webstorage-2013-July.html 2013/07/15 17:06:33 1.1 <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN"><html lang="en-US-x-Hixie"><title>Web Storage</title><style type="text/css"> pre { margin-left: 2em; white-space: pre-wrap; } h2 { margin: 3em 0 1em 0; } h3 { margin: 2.5em 0 1em 0; } h4 { margin: 2.5em 0 0.75em 0; } h5, h6 { margin: 2.5em 0 1em; } h1 + h2, h1 + h2 + h2 { margin: 0.75em 0 0.75em; } h2 + h3, h3 + h4, h4 + h5, h5 + h6 { margin-top: 0.5em; } p { margin: 1em 0; } hr:not(.top) { display: block; background: none; border: none; padding: 0; margin: 2em 0; height: auto; } dl, dd { margin-top: 0; margin-bottom: 0; } dt { margin-top: 0.75em; margin-bottom: 0.25em; clear: left; } dt + dt { margin-top: 0; } dd dt { margin-top: 0.25em; margin-bottom: 0; } dd p { margin-top: 0; } dd dl + p { margin-top: 1em; } dd table + p { margin-top: 1em; } p + * > li, dd li { margin: 1em 0; } dt, dfn { font-weight: bold; font-style: normal; } i, em { font-style: italic; } dt dfn { font-style: italic; } pre, code { font-size: inherit; font-family: monospace; font-variant: normal; } pre strong { color: black; font: inherit; font-weight: bold; background: yellow; } pre em { font-weight: bolder; font-style: normal; } @media screen { code { color: orangered; } code :link, code :visited { color: inherit; } } var sub { vertical-align: bottom; font-size: smaller; position: relative; top: 0.1em; } table { border-collapse: collapse; border-style: hidden hidden none hidden; } table thead, table tbody { border-bottom: solid; } table tbody th:first-child { border-left: solid; } table tbody th { text-align: left; } table td, table th { border-left: solid; border-right: solid; border-bottom: solid thin; vertical-align: top; padding: 0.2em; } blockquote { margin: 0 0 0 2em; border: 0; padding: 0; font-style: italic; } .bad, .bad *:not(.XXX) { color: gray; border-color: gray; background: transparent; } .matrix, .matrix td { border: none; text-align: right; } .matrix { margin-left: 2em; } .dice-example { border-collapse: collapse; border-style: hidden solid solid hidden; border-width: thin; margin-left: 3em; } .dice-example caption { width: 30em; font-size: smaller; font-style: italic; padding: 0.75em 0; text-align: left; } .dice-example td, .dice-example th { border: solid thin; width: 1.35em; height: 1.05em; text-align: center; padding: 0; } .toc dfn, h1 dfn, h2 dfn, h3 dfn, h4 dfn, h5 dfn, h6 dfn { font: inherit; } img.extra, p.overview { float: right; } pre.idl { border: solid thin; background: #EEEEEE; color: black; padding: 0.5em 1em; position: relative; } pre.idl :link, pre.idl :visited { color: inherit; background: transparent; } pre.idl::before { content: "IDL"; font: bold small sans-serif; padding: 0.5em; background: white; position: absolute; top: 0; margin: -1px 0 0 -4em; width: 1.5em; border: thin solid; border-radius: 0 0 0 0.5em } pre.css { border: solid thin; background: #FFFFEE; color: black; padding: 0.5em 1em; } pre.css:first-line { color: #AAAA50; } dl.domintro { color: green; margin: 2em 0 2em 2em; padding: 0.5em 1em; border: none; background: #DDFFDD; } hr + dl.domintro, div.impl + dl.domintro { margin-top: 2.5em; margin-bottom: 1.5em; } dl.domintro dt, dl.domintro dt * { color: black; text-decoration: none; } dl.domintro dd { margin: 0.5em 0 1em 2em; padding: 0; } dl.domintro dd p { margin: 0.5em 0; } dl.domintro:before { display: table; margin: -1em -0.5em -0.5em auto; width: auto; content: 'This box is non-normative. 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} body.dfnEnabled dfn { cursor: pointer; } .dfnPanel { display: inline; position: absolute; z-index: 10; height: auto; width: auto; padding: 0.5em 0.75em; font: small sans-serif, Droid Sans Fallback; background: #DDDDDD; color: black; border: outset 0.2em; } .dfnPanel * { margin: 0; padding: 0; font: inherit; text-indent: 0; } .dfnPanel :link, .dfnPanel :visited { color: black; } .dfnPanel p { font-weight: bolder; } .dfnPanel * + p { margin-top: 0.25em; } .dfnPanel li { list-style-position: inside; } #configUI { position: absolute; z-index: 20; top: 10em; right: 1em; width: 11em; font-size: small; } #configUI p { margin: 0.5em 0; padding: 0.3em; background: #EEEEEE; color: black; border: inset thin; } #configUI p label { display: block; } #configUI #updateUI, #configUI .loginUI { text-align: center; } #configUI input[type=button] { display: block; margin: auto; } fieldset { margin: 1em; padding: 0.5em 1em; } fieldset > legend + * { margin-top: 0; } fieldset > :last-child { margin-bottom: 0; } fieldset p { margin: 0.5em 0; } </style><link href="http://www.w3.org/StyleSheets/TR/W3C-REC" rel="stylesheet" type="text/css"><script type="text/javascript"> function getCookie(name) { var params = location.search.substr(1).split("&"); for (var index = 0; index < params.length; index++) { if (params[index] == name) return "1"; var data = params[index].split("="); if (data[0] == name) return unescape(data[1]); } var cookies = document.cookie.split("; "); for (var index = 0; index < cookies.length; index++) { var data = cookies[index].split("="); if (data[0] == name) return unescape(data[1]); } return null; } </script><div class="head" id="head"> <p><a href="http://www.w3.org/"><img alt="W3C" height="48" src="http://www.w3.org/Icons/w3c_home" width="72"></a></p> <h1>Web Storage</h1> <h2 class="no-num no-toc" id="rec-july-2013">W3C Recommendation 25 July 2013</h2> <dl> <dt>This Version:</dt> <dd><a href="http://www.w3.org/TR/2013/REC-webstorage-20130725/">http://www.w3.org/TR/2013/REC-webstorage-20130725/</a></dd> <dt>Latest Published Version:</dt> <dd><a href="http://www.w3.org/TR/webstorage/">http://www.w3.org/TR/webstorage/</a></dd> <dt>Latest Editor's Draft:</dt> <dd><a class="latest-link" href="http://dev.w3.org/html5/webstorage/">http://dev.w3.org/html5/webstorage/</a></dd> <dt>Previous Versions:</dt> <dd><a href="http://www.w3.org/TR/2013/PR-webstorage-20130409/">http://www.w3.org/TR/2013/PR-webstorage-20130409/</a></dd> <dd><a href="http://www.w3.org/TR/2011/CR-webstorage-20111208/">http://www.w3.org/TR/2011/CR-webstorage-20111208/</a></dd> <dd><a href="http://www.w3.org/TR/2011/WD-webstorage-20111025/">http://www.w3.org/TR/2011/WD-webstorage-20111025/</a></dd> <dd><a href="http://www.w3.org/TR/2011/WD-webstorage-20110901/">http://www.w3.org/TR/2011/WD-webstorage-20110901/</a></dd> <dd><a href="http://www.w3.org/TR/2011/WD-webstorage-20110208/">http://www.w3.org/TR/2011/WD-webstorage-20110208/</a></dd> <dd><a href="http://www.w3.org/TR/2009/WD-webstorage-20091222/">http://www.w3.org/TR/2009/WD-webstorage-20091222/</a></dd> <dd><a href="http://www.w3.org/TR/2009/WD-webstorage-20091029/">http://www.w3.org/TR/2009/WD-webstorage-20091029/</a></dd> <dd><a href="http://www.w3.org/TR/2009/WD-webstorage-20090423/">http://www.w3.org/TR/2009/WD-webstorage-20090423/</a></dd> <!-- :ZZZ --> <dt>Editor:</dt> <dd><a href="mailto:ian@hixie.ch">Ian Hickson</a>, Google, Inc.</dd> </dl> <p>Please refer to the <a href="http://dev.w3.org/2006/html5/webstorage/publish/errata-v1.html"><strong>errata</strong></a> for this document, which may include some normative corrections.</p> <p>See also <a href="http://www.w3.org/2003/03/Translations/byTechnology?technology=webstorage"><strong>translations</strong></a>.</p> <p class="copyright"><a href="http://www.w3.org/Consortium/Legal/ipr-notice#Copyright">Copyright</a> © 2013 <a href="http://www.w3.org/"><abbr title="World Wide Web Consortium">W3C</abbr></a><sup>®</sup> (<a href="http://www.csail.mit.edu/"><abbr title="Massachusetts Institute of Technology">MIT</abbr></a>, <a href="http://www.ercim.eu/"><abbr title="European Research Consortium for Informatics and Mathematics">ERCIM</abbr></a>, <a href="http://www.keio.ac.jp/">Keio</a>, <a href="http://ev.buaa.edu.cn/">Beihang</a>), All Rights Reserved. W3C <a href="http://www.w3.org/Consortium/Legal/ipr-notice#Legal_Disclaimer">liability</a>, <a href="http://www.w3.org/Consortium/Legal/ipr-notice#W3C_Trademarks">trademark</a> and <a href="http://www.w3.org/Consortium/Legal/copyright-documents">document use</a> rules apply.</p> <!-- UNDER NO CIRCUMSTANCES IS THE FOLLOWING PARAGRAPH TO BE REMOVED OR EDITED WITHOUT TALKING TO IAN FIRST --> <p class="alt">The bulk of the text of this specification is also available in the WHATWG <a href="http://www.whatwg.org/specs/web-apps/current-work/complete.html#webstorage">Web Applications 1.0</a> specification, under a license that permits reuse of the specification text.</p> <!-- UNDER NO CIRCUMSTANCES IS THE PRECEDING PARAGRAPH TO BE REMOVED OR EDITED WITHOUT TALKING TO IAN FIRST --> </div><hr class="top"><h2 class="no-num no-toc" id="abstract">Abstract</h2><p>This specification defines an API for persistent data storage of key-value pair data in Web clients.<h2 class="no-num no-toc" id="status-of-this-document">Status of This document</h2><p><em>This section describes the status of this document at the time of its publication. Other documents may supersede this document. A list of current W3C publications and the latest <!-- DO NOT CHANGE THIS BACK TO THE STANDARD BOILERPLATE, AS IT IS INACCURATE --> revision of this technical report can be found in the <a href="http://www.w3.org/TR/">W3C technical reports index</a> at http://www.w3.org/TR/.</em></p> <p>The W3C <a href="http://www.w3.org/2008/webapps/">Web Applications Working Group</a> created a <a href="https://github.com/w3c/web-platform-tests/tree/master/webstorage">Test Suite</a> for this spec and the <a href="http://www.w3.org/wiki/Webapps/Interop/WebStorage">Implementation Report</a> shows the Web Storage Candidate Recommendation's <a href="http://www.w3.org/TR/2011/CR-webstorage-20111208/#crec">exit critera</a> has been met. </p> <p>If you wish to submit bugs regarding this document in a manner that is tracked by the W3C, please submit them via using <a href="http://www.w3.org/Bugs/Public/enter_bug.cgi?product=WebAppsWG">our public bug database</a>. <!-- Removed for PR If you do not have an account then you can enter feedback using this form:<form action="http://www.whatwg.org/specs/web-apps/current-work/file-spam.cgi" method="post"> <fieldset><legend>Feedback Comments</legend> <input name="id" type="hidden" value="top"><input name="component" type="hidden" value="Web Storage (editor: Ian Hickson)"><input name="response" type="hidden" value="html"><p><label for="feedbackBox">Please enter your feedback, carefully indicating the title of the section for which you are submitting feedback, quoting the text that's wrong today if appropriate. If you're suggesting a new feature, it's really important to say <em>what</em> the problem you're trying to solve is. That's more important than the solution, in fact.</label></p> <p><textarea cols="79" id="feedbackBox" name="text" rows="10"></textarea></p> <p class="note">Please don't use section numbers as these tend to change rapidly and make your feedback harder to understand.</p> <script type="text/javascript"> function checkFeedbackForm(form) { if (form.elements.text.value.match(/^ *</)) { alert('Please don\'t start your feedback with an angle bracket, instead explain what topic your feedback is about first.'); return true; } else if (form.elements.text.value.match(/ [^ ]+ [^ ]+ [^ ]+ [^ ]+ /)) { if (form.elements.text.value.match(/^Please enter your feedback, carefully/)) { alert('Please enter your feedback, explaining what is wrong, and without repeating the instructions. Thanks!'); return true; } else if (form.elements.text.value.match(/ [^ ]+ [^ ]+ [^ ]+ [^ ]+ /)) { form.action = "http://www.whatwg.org/specs/web-apps/current-work/file-bug.cgi"; return true; } else { alert('Please include significantly more detail about exactly what problem you are trying to solve.'); return false; } } } </script><p> <input onclick="return checkFeedbackForm(form)" type="submit" value="Submit feedback"><small>(Note: Your IP address and user agent will be publicly recorded for spam prevention purposes.)</small> </p> </fieldset></form> --> You can also e-mail feedback to <a href="mailto:public-webapps@w3.org">public-webapps@w3.org</a> (<a href="mailto:public-webapps-request@w3.org?subject=subscribe">subscribe</a>, <a href="http://lists.w3.org/Archives/Public/public-webapps/">archives</a>), or <a href="mailto:whatwg@whatwg.org">whatwg@whatwg.org</a> (<a href="http://lists.whatwg.org/listinfo.cgi/whatwg-whatwg.org">subscribe</a>, <a href="http://lists.whatwg.org/pipermail/whatwg-whatwg.org/">archives</a>). All feedback is welcome.</p> <!-- Removed for CR ... <p>Implementors should be aware that this specification is not stable. <strong>Implementors who are not taking part in the discussions are likely to find the specification changing out from under them in incompatible ways.</strong> Vendors interested in implementing this specification before it eventually reaches the Candidate Recommendation stage should join the aforementioned mailing lists and take part in the discussions.<div id="multipage-common"> </div><p>The latest stable version of the editor's draft of this specification is always available on <a href="http://dev.w3.org/html5/webstorage/">the W3C CVS server</a> and in the <a href="http://svn.whatwg.org/webapps/">WHATWG Subversion repository</a>. The <a href="http://www.whatwg.org/specs/web-apps/current-work/complete.html">latest editor's working copy</a> (which may contain unfinished text in the process of being prepared) contains the latest draft text of this specification (amongst others). For more details, please see the <a href="http://wiki.whatwg.org/wiki/FAQ#What_are_the_various_versions_of_the_spec.3F">WHATWG FAQ</a>. --> <!-- Removed for PR <p>Notifications of changes to this specification are sent along with notifications of changes to related specifications using the following mechanisms:<dl><dt>E-mail notifications of changes</dt> <dd>Commit-Watchers mailing list (complete source diffs): <a href="http://lists.whatwg.org/listinfo.cgi/commit-watchers-whatwg.org">http://lists.whatwg.org/listinfo.cgi/commit-watchers-whatwg.org</a></dd> <dt>Browsable version-control record of all changes:</dt> <dd>CVSWeb interface with side-by-side diffs: <a href="http://dev.w3.org/cvsweb/html5/">http://dev.w3.org/cvsweb/html5/</a></dd> <dd>Annotated summary with unified diffs: <a href="http://html5.org/tools/web-apps-tracker">http://html5.org/tools/web-apps-tracker</a></dd> <dd>Raw Subversion interface: <code>svn checkout http://svn.whatwg.org/webapps/</code></dd> </dl> --> <p>By publishing this Recommendation, W3C is asserting that the definitions referenced from <a href="#refsHTML">HTML5</a> and <a href="#refsDOMCORE">DOM4</a> are stable.</p> <p>This document has been reviewed by W3C Members, by software developers, and by other W3C groups and interested parties, and is endorsed by the Director as a W3C Recommendation. It is a stable document and may be used as reference material or cited from another document. W3C's role in making the Recommendation is to draw attention to the specification and to promote its widespread deployment. This enhances the functionality and interoperability of the Web.</p> <p>This document was produced by a group operating under the <a href="http://www.w3.org/Consortium/Patent-Policy-20040205/">5 February 2004 W3C Patent Policy</a>. W3C maintains a <a href="http://www.w3.org/2004/01/pp-impl/42538/status" rel="disclosure">public list of any patent disclosures</a> made in connection with the deliverables of the group; that page also includes instructions for disclosing a patent. An individual who has actual knowledge of a patent which the individual believes contains <a href="http://www.w3.org/Consortium/Patent-Policy-20040205/#def-essential">Essential Claim(s)</a> must disclose the information in accordance with <a href="http://www.w3.org/Consortium/Patent-Policy-20040205/#sec-Disclosure">section 6 of the W3C Patent Policy</a>. <h2 class="no-num no-toc" id="issues">Issues</h2><p>The use of the storage mutex to avoid race conditions is currently considered by certain implementors to be too high a performance burden, to the point where allowing data corruption is considered preferable. Alternatives that do not require a user-agent-wide per-origin script lock are eagerly sought after. If reviewers have any suggestions, they are urged to send them to the addresses given in the previous section.<p>More details regarding this issue are available in these e-mails (as well as <a href="http://lists.whatwg.org/mmsearch.cgi/whatwg-whatwg.org?config=whatwg-whatwg.org&restrict=&exclude=&method=and&format=short&sort=revtime&words=storage+mutex">numerous others</a>):<ul><li><a href="http://lists.whatwg.org/htdig.cgi/whatwg-whatwg.org/2009-September/023059.html">http://lists.whatwg.org/htdig.cgi/whatwg-whatwg.org/2009-September/023059.html</a></li> <li><a href="http://lists.whatwg.org/htdig.cgi/whatwg-whatwg.org/2009-December/024277.html">http://lists.whatwg.org/htdig.cgi/whatwg-whatwg.org/2009-December/024277.html</a></li> </ul><h2 class="no-num no-toc" id="contents">Table of Contents</h2> <ol class="toc"> <li><a href="#introduction"><span class="secno">1 </span>Introduction</a></li> <li><a href="#conformance-requirements"><span class="secno">2 </span>Conformance requirements</a> <ol> <li><a href="#dependencies"><span class="secno">2.1 </span>Dependencies</a></ol></li> <li><a href="#terminology"><span class="secno">3 </span>Terminology</a></li> <li><a href="#storage"><span class="secno">4 </span>The API</a> [536 lines skipped]
Received on Monday, 15 July 2013 17:06:35 UTC