[1]
[CITE[d:id:quaa - 2007-10-01]] ([CODE[2007-10-06 12:51:52 +09:00]] 版) <http://d.hatena.ne.jp/quaa/20071001#p1>
([[名無しさん]])


[2]
[CITE[SVG extensions to <canvas>]] ([[Anne van Kesteren <annevk@...>]] 著, [TIME[2007-10-25 18:58:45 +09:00]] 版) <http://permalink.gmane.org/gmane.org.w3c.whatwg.discuss/12178>

[3] 同じ[[文書]]中で作った [CODE(URI)@en[[[data:]]]] [[URL]] の[[画像]]を 
[CODE(DOMm)@en[[[drawImage]]]] すると、 [[Gecko]] は同じ[[起源]]として扱う一方、
[[WebKit]] は違う[[起源]]とみなすようです。 [TIME[2010-12-12T04:42:02.00Z]]

[4] >>3 [[WebKit]] でも [[Chrome]] でも動いたけど [[iPad]] では動かなかった。バージョンによって違う?

[5] [[Wiiインターネットチャンネル]]も [CODE(URI)@en[[[data:]]]] を [CODE(DOMa)@en[[[drawImage]]]]
したらだめになった。

[6] [CITE@en[Web Applications 1.0 r5708     <canvas> drawImage() and pattern filtering issue]]
( ([TIME[2010-12-08 05:56:00 +09:00]] 版))
<http://html5.org/tools/web-apps-tracker?from=5707&to=5708>

[7] [CITE@en[Web Applications 1.0 r8131     Make the spec throw an exception for broken images drawn into canvas, like Firefox and IE do today.]]
( ([TIME[2013-08-07 05:18:00 +09:00]] 版))
<http://html5.org/tools/web-apps-tracker?from=8130&to=8131>

[8] [CITE[''''''[''''''whatwg'''''']'''''' A question about the drawimage() canvas function]]
( ([TIME[2013-08-06 21:01:45 +09:00]] 版))
<http://lists.whatwg.org/pipermail/whatwg-whatwg.org/2013-August/040386.html>

[9] [CITE@en[Web Applications 1.0 r8228     Clarify how to handle zero-width <img>s in drawImage(), and make zero-width <canvas>es not throw.]]
( ([TIME[2013-10-17 07:49:00 +09:00]] 版))
<http://html5.org/tools/web-apps-tracker?from=8227&to=8228>

[10] [CITE[''''''[''''''whatwg'''''']'''''' Canvas - Somewhat inconsistent rules in the spec for drawImage]]
( ([TIME[2013-10-17 04:11:50 +09:00]] 版))
<http://lists.whatwg.org/pipermail/whatwg-whatwg.org/2013-October/041147.html>

[11] [CITE@en[Support SVGImageElement in <canvas> · whatwg/html@806874f]]
([TIME[2016-03-25 11:19:47 +09:00]] 版)
<https://github.com/whatwg/html/commit/806874fa426589be159c3c2e8266e00ade80e2e9>

[12] [CITE@en[Throw when <canvas> is not usable as image]]
([[annevk]]著, [TIME[2018-01-24 23:48:39 +09:00]])
<https://github.com/whatwg/html/commit/e0383f683428e97d6f0c41dc8b2a1519a5dbb631>

[13] [CITE@en[Throw when <canvas> is not usable as image by annevk · Pull Request #3398 · whatwg/html]]
([TIME[2018-01-27 16:51:29 +09:00]])
<https://github.com/whatwg/html/pull/3398>

[14] [CITE@en[Make createImageBitmap() share more logic]]
([[annevk]]著, [TIME[2018-01-27 00:56:20 +09:00]])
<https://github.com/whatwg/html/commit/7458477e47ef2f1187fc64bbd87142e491e95094>

[15] [CITE@en[Combine createImageBitmap() / createPattern() / drawImage() checks · Issue #3399 · whatwg/html]]
([TIME[2018-01-30 16:41:10 +09:00]])
<https://github.com/whatwg/html/issues/3399>

[16] [CITE@en[Make createImageBitmap() share more logic by annevk · Pull Request #3408 · whatwg/html]]
([TIME[2018-01-30 16:41:13 +09:00]])
<https://github.com/whatwg/html/pull/3408>

[17] [CITE@en[Throw when OffscreenCanvas is not usable as image]]
([[zakerinasab]]著, [TIME[2018-02-09 02:31:45 +09:00]])
<https://github.com/whatwg/html/commit/52d319a1ea67f90d67b95a5091493baad29ebd53>

[18] [CITE@en[Throw when <OffscreenCanvas> is not usable as image by zakerinasab · Pull Request #3453 · whatwg/html]]
([TIME[2018-02-09 14:46:54 +09:00]])
<https://github.com/whatwg/html/pull/3453>