[2]
[[Web Applications 1.0]] の、他の[[ドメイン]]の[[文書]]に[[メッセージ]]を送る機能。

* 対応ブラウザー

- [51] [[IE]] 8+ (2009/3) [SRC[>>52]]
- [54] [[Gecko]] 1.9+ / [[Firefox]] 3+ (2008/6) [SRC[>>55]]
- [56] [[WebKit]] 2007年末+ [SRC[>>59]]
-- [57] [[Chrome]] 4+ (2010/1) [SRC[>>58]]
-- [63] [[Safari]] 4+ (2009/6) [SRC[>>64]]
- [60] [[Opera]]
-- [62] [CODE(DOMi)@en[[[Document]]]] (旧仕様): 9+ (2006/6) [SRC[>>59]]
-- [61] [CODE(DOMi)@en[[[Window]]]]: 9.5+ (2008/6) [SRC[>>59]]

** 出典

- [52] [CITE@en-us[postMessage Method (window, Window Constructor)]] ([TIME[2011-04-24 11:40:59 +09:00]] 版) <http://msdn.microsoft.com/library/cc197015.aspx>
- [53] [CITE@ja-jp[Internet Explorer 8 のクロス ドキュメント メッセージングの概要]] ([TIME[2011-04-24 11:40:25 +09:00]] 版) <http://msdn.microsoft.com/ja-jp/library/cc511311(v=vs.85).aspx>
- [55] [CITE@ja[window.postMessage - MDC Doc Center]] ([TIME[2011-04-24 11:42:47 +09:00]] 版) <https://developer.mozilla.org/ja/DOM/window.postMessage>
- [58] [CITE[Google Chrome 4で注目したいセキュリティ強化の新機能 - ITmedia エンタープライズ]] ([TIME[2011-04-24 11:47:11 +09:00]] 版) <http://www.itmedia.co.jp/enterprise/articles/1001/29/news021.html>
- [59] [CITE[サーバーサイド技術を使わないクロスドメイン通信補足 - 0xFF]] ([TIME[2011-04-24 11:48:45 +09:00]] 版) <http://d.hatena.ne.jp/os0x/20080409/1207732715>
- [64] [CITE@en[Browser Variation of the Hub Reference Implementation (Illustrative) - MemberWiki]] ([TIME[2009-12-19 12:40:31 +09:00]] 版) <http://www.openajax.org/member/wiki/Browser_Variation_of_the_Hub_Reference_Implementation_(Illustrative)#HTML_5_postMessage>

* メモ

[1]
[CITE[Cross-document messaging in Opera - Arve Bersvendsen]] <http://virtuelvis.com/archives/2005/12/cross-document-messaging>

[50] 
[[Opera 8]] β にはありませんでしたが、 [[Opera 8.5]]
では実装されていました。

[3]
[CITE[The cross-document messaging APIs]] ([[Ian Hickson <ian@...>]] 著, [CODE[2007-08-09 00:51:36 +09:00]] 版) <http://permalink.gmane.org/gmane.org.w3c.whatwg.discuss/11634>

[4]
[CITE[Index of /specs/dom/messages]] ([CODE[2008-02-13 01:58:34 +09:00]] 版) <http://www.hixie.ch/specs/dom/messages/>

[23]
[CITE[Fixed a security problem with postMessage()]] ([[Ian Hickson <ian@...>]] 著, [CODE[2008-02-12 20:03:46 +09:00]] 版) <http://permalink.gmane.org/gmane.org.w3c.whatwg.discuss/13237>
([[名無しさん]])

[24]
[CITE[IE Team Feedback on HTML 5.0 Cross Document Messaging]] ([[Sunava Dutta <sunavad@...>]] 著, [CODE[2008-02-22 03:18:40 +09:00]] 版) <http://permalink.gmane.org/gmane.org.w3c.whatwg.discuss/13320>

[32]
[CITE[postMessage() issues]] ([[Ian Hickson <ian@...>]] 著, [CODE[2008-04-16 00:10:07 +09:00]] 版) <http://permalink.gmane.org/gmane.org.w3c.whatwg.discuss/13716>

[38]
[CITE[postMessage feedback]] ([[Ian Hickson <ian@...>]] 著, [CODE[2008-04-24 23:49:56 +09:00]] 版) <http://permalink.gmane.org/gmane.org.w3c.whatwg.discuss/13867>

[39] [CITE@en[(X)HTML5 Tracking]]
([TIME[2010-01-09 14:12:17 +09:00]] 版)
<http://html5.org/tools/web-apps-tracker?from=4547&to=4548>

[40] [CITE@en-US-x-Hixie[HTML5 Communications]]
([TIME[2010-01-09 10:10:53 +09:00]] 版)
<http://dev.w3.org/html5/postmsg/Overview.html>

[41] [CITE[IRC logs: freenode / #whatwg / 20100212]]
([TIME[2010-02-14 11:17:32 +09:00]] 版)
<http://krijnhoetmer.nl/irc-logs/whatwg/20100212#l-271>

[42] [CITE@en-US[David Baron's weblog: setTimeout with a shorter delay]]
([TIME[2010-03-16 08:44:54 +09:00]] 版)
<http://dbaron.org/log/20100309-faster-timeouts>

[43] [CITE['''['''whatwg''']''' postMessage's target origin argument can be a full URL in some implementations]]
([TIME[2010-08-11 10:18:42 +09:00]] 版)
<http://lists.whatwg.org/pipermail/whatwg-whatwg.org/2010-August/027848.html>

[44] [CITE@en[HTML5 Revision Tracker]]
([TIME[2010-08-11 23:17:32 +09:00]] 版)
<http://html5.org/tools/web-apps-tracker?from=5276&to=5277>

[45] [CITE[''''''[''''''whatwg'''''']'''''' postMessage's target origin argument can be a full URL in some implementations]]
( ([TIME[2010-11-16 08:52:44 +09:00]] 版))
<http://lists.whatwg.org/htdig.cgi/whatwg-whatwg.org/2010-November/029037.html>

[46] [CITE@en[Web Applications 1.0 r5682      Revert r5277's removal of '/' as a magic value to postMessage(), since it has useful use cases. Paths in absolute URLs are still ignored without raising an exception.]]
( ([TIME[2010-11-16 08:25:00 +09:00]] 版))
<http://html5.org/tools/web-apps-tracker?from=5681&to=5682>

[47] [CITE@en-US-x-Hixie[HTML5 Web Messaging]]
( ([TIME[2010-11-19 05:40:25 +09:00]] 版))
<http://www.w3.org/TR/2010/WD-webmessaging-20101118/>

[48] [CITE[IE で postMessage 的実装をちゃんとやる - 冬通りに消え行く制服ガールは、夢物語にリアルを求めない。 - subtech]]
( ([TIME[2010-12-07 22:02:13 +09:00]] 版))
<http://subtech.g.hatena.ne.jp/cho45/20101207/1291719344>

[49] [CITE@en-US-x-Hixie[HTML5 Web Messaging]]
( ([TIME[2011-03-17 23:58:26 +09:00]] 版))
<http://www.w3.org/TR/2011/WD-webmessaging-20110317/>

[65] [CITE@en[Web Applications 1.0 r6690     Make postMessage() accept the second and third arguments in either order. Compat with WebKit and hopefully solves the difficulty people have about remembering which goes first.]]
( ([TIME[2011-10-18 06:47:00 +09:00]] 版))
<http://html5.org/tools/web-apps-tracker?from=6689&to=6690>

[66] [CITE@en[Web Applications 1.0 r6691     Revert last checkin. My testing was bogus.]]
( ([TIME[2011-10-18 07:09:00 +09:00]] 版))
<http://html5.org/tools/web-apps-tracker?from=6690&to=6691>

[67] [CITE@en-US-x-Hixie[HTML5 Web Messaging]]
( ([TIME[2011-10-19 02:36:24 +09:00]] 版))
<http://www.w3.org/TR/2011/WD-webmessaging-20111020/>

[68] [CITE@ja[IE 6/7 で文書間通信を実現するための一案: Days on the Moon]]
( ([TIME[2011-12-10 00:17:35 +09:00]] 版))
<http://nanto.asablo.jp/blog/2011/12/08/6237308>

[69] [CITE@en-US-x-Hixie[HTML5 Web Messaging]]
( ([TIME[2012-03-12 22:06:22 +09:00]] 版))
<http://www.w3.org/TR/2012/WD-webmessaging-20120313/>

[70] [CITE@en-US-x-Hixie[HTML5 Web Messaging]]
( ([TIME[2012-05-01 21:47:11 +09:00]] 版))
<http://www.w3.org/TR/2012/CR-webmessaging-20120501/>

[71] [CITE[Securing Frame Communication in Browsers]]
( ([TIME[2008-05-15 01:03:44 +09:00]] 版))
<http://seclab.stanford.edu/websec/frames/post-message.pdf>

[72] [CITE@en[Compound Document by Reference Framework 1.0]]
( ([TIME[2010-08-17 16:50:04 +09:00]] 版))
<http://www.w3.org/TR/CDR/#event-propagation>

[73] [CITE@en[Interview with Ian Hickson, HTML editor | HTML5 Doctor]]
( ([TIME[2013-01-13 18:27:28 +09:00]] 版))
<http://html5doctor.com/interview-with-ian-hickson-html-editor/>

[74] [CITE@en[RemoteDocumentMessaging - WHATWG Wiki]]
( ([TIME[2013-06-24 05:31:29 +09:00]] 版))
<http://wiki.whatwg.org/wiki/RemoteDocumentMessaging>

[75] [CITE[IRC logs: freenode / #whatwg / 20130621]]
( ([TIME[2013-06-24 19:18:13 +09:00]] 版))
<http://krijnhoetmer.nl/irc-logs/whatwg/20130621#l-585>