<html xmlns="http://www.w3.org/1999/xhtml"><head></head><body><p><anchor-end xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="6" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">[6]</anchor-end> <dfn><code class="URI" xml:lang="en"><anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">crossdomain.xml</anchor></code></dfn> は、 <anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">Flash</anchor>
で異なる<anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">起源</anchor>の<anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">資源</anchor>にアクセスするために使われていたファイルです。</p><comment-p xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:10:"><anchor-end xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="7" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">[7]</anchor-end> 標準の <anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">Web</anchor> 技術では <anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">CORS</anchor> に相当するものですが、
歴史的には <code xmlns="http://www.w3.org/1999/xhtml" class="URI" xml:lang="en"><anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">crossdomain.xml</anchor></code> が遥かに先でした。
しかし <anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">Flash</anchor> と <anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">Silverlight</anchor> 以外では採用されていません。</comment-p><section><h1>仕様書</h1><refs xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:"><ul xmlns="http://www.w3.org/1999/xhtml"><li><anchor-end xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="4" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">[4]</anchor-end> <cite xml:lang="en">Cross-domain policy file specification | Adobe Developer Connection</cite>
( (<anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">Adobe</anchor> 著, <time>2013-12-01 13:54:15 +09:00</time> 版))
<anchor-external xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:resScheme="URI" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:resParameter="http://www.adobe.com/devnet/articles/crossdomain_policy_file_spec.html">http://www.adobe.com/devnet/articles/crossdomain_policy_file_spec.html</anchor-external></li></ul></refs></section><section><h1>MIME 型</h1><p><anchor-end xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="5" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">[5]</anchor-end> 仕様書によると、 <anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">MIME型</anchor>は <code class="MIME" xml:lang="en"><anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">text/x-cross-domain-policy</anchor></code> です <src xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:10:"><anchor-internal xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="4" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">&gt;&gt;4</anchor-internal></src>。</p></section><section><h1>メモ</h1><p><anchor-end xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="1" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">[1]</anchor-end> <cite>XHR level 2とJSONPとcrossdomain.xmlの話 - 金利0無利息キャッシング – キャッシングできます - subtech</cite>
( (<time>2011-04-24 10:59:18 +09:00</time> 版))
<anchor-external xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:resScheme="URI" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:resParameter="http://subtech.g.hatena.ne.jp/mala/20100222/1266845737">http://subtech.g.hatena.ne.jp/mala/20100222/1266845737</anchor-external></p><p><anchor-end xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="2" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">[2]</anchor-end> <cite><strong></strong>[<strong></strong>whatwg<strong></strong>]<strong></strong> File based permission files?</cite>
( (<time>2012-06-14 06:40:26 +09:00</time> 版))
<anchor-external xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:resScheme="URI" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:resParameter="http://lists.whatwg.org/pipermail/whatwg-whatwg.org/2012-June/036389.html">http://lists.whatwg.org/pipermail/whatwg-whatwg.org/2012-June/036389.html</anchor-external></p><p><anchor-end xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="3" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">[3]</anchor-end> <cite xml:lang="en">Cross-domain policy for Flash movies</cite>
( (<time>2013-12-01 13:53:50 +09:00</time> 版))
<anchor-external xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:resScheme="URI" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:resParameter="http://kb2.adobe.com/cps/142/tn_14213.html">http://kb2.adobe.com/cps/142/tn_14213.html</anchor-external></p><p><anchor-end xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="8" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">[8]</anchor-end> <cite xml:lang="en">Re: CORS performance</cite>
(<anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">Jonas Sicking</anchor> 著, <time>2015-02-24 03:55:18 +09:00</time> 版)
<anchor-external xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:resScheme="URI" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:resParameter="https://lists.w3.org/Archives/Public/public-webapps/2015JanMar/0734.html">https://lists.w3.org/Archives/Public/public-webapps/2015JanMar/0734.html</anchor-external></p><p><anchor-end xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="9" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">[9]</anchor-end> <anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">CORS</anchor> が <anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">crossdomain.xml</anchor> を採用しなかったのは、
<anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">Flash</anchor> のためにあまり考えずに <anchor xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:">crossdomain.xml</anchor> が配置されていることが多く、
それに従うと危険度が高まると思われることからのようです <src xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:10:"><anchor-internal xmlns="urn:x-suika-fam-cx:markup:suikawiki:0:9:" a0:anchor="8" xmlns:a0="urn:x-suika-fam-cx:markup:suikawiki:0:9:">&gt;&gt;8</anchor-internal></src>。</p></section></body></html>