[1] HTML Speech Incubator Group Final Report ( (2011-12-05 17:46:22 +09:00 版)) http://www.w3.org/2005/Incubator/htmlspeech/XGR-htmlspeech-20111206/#dfn-src

[2] Clear the media element's autoplaying flag when autoplaying · whatwg/html@2b9320c (2015-11-27 17:59:49 +09:00 版) https://github.com/whatwg/html/commit/2b9320cf687778f0573fd4e98f6fcabdd164a8f2

[3] Intervention change: allow autoplay of muted videos on mobile · Issue #23 · WICG/interventions ( (2016-06-15 16:04:54 +09:00)) https://github.com/WICG/interventions/issues/23

[4] Allow delaying autoplay until video elements become visible ( (Zhiqiang Zhang著, 2016-06-09 23:03:09 +09:00)) https://github.com/whatwg/html/commit/8ebd581ea848c476368e5f25ee3a3c31803b29fa

[5]

Chromium Blog: Chrome 53 Beta: Shadow DOM, PaymentRequest, and Android autoplay ( (2016-09-17 08:54:54 +09:00)) http://blog.chromium.org/2016/08/chrome-53-beta-shadow-dom.html

Video is a great way for sites to reach their users, but it can be jarring when it plays unexpectedly. This is especially true on mobile, where the user may be in an environment where audio is unwanted. Chrome on Android now allows muted videos to begin playing without user interaction. If the video was marked as muted and has the autoplay attribute, Chrome will start playing the video when it becomes visible to the user. Developers can also use script to play muted videos without user interaction. Muted videos that begin playing sound before a user action will automatically be paused.

[6] Interrupt autoplay when video element becomes invisible (xxyzzzq著, 2017-02-10 03:44:20 +09:00) https://github.com/whatwg/html/commit/aba54ed5a3dac78c3b29857ab71692f160cbe5e1

[7] Media Updates in Chrome 58 | Web | Google Developers ( (2017-03-31 00:28:36 +09:00)) https://developers.google.com/web/updates/2017/03/chrome-58-media-updates

[8] Auto-Play Policy Changes for macOS | WebKit (2017-09-26 23:23:36 +09:00) https://webkit.org/blog/7734/auto-play-policy-changes-for-macos/

[9] Autoplay Policy Changes | Web | Google Developers (2017-09-22 11:59:06 +09:00) https://developers.google.com/web/updates/2017/09/autoplay-policy-changes

[10] autoplay permission · Issue #172 · w3c/permissions (2018-04-09 13:42:32 +09:00) https://github.com/w3c/permissions/issues/172

[11] Modeling media auto-playing as a permission? · Issue #203 · w3ctag/design-reviews (2018-04-09 13:43:15 +09:00) https://github.com/w3ctag/design-reviews/issues/203

[12] Media: add method to discover whether playback is allowed before calling `play()` · Issue #3617 · whatwg/html (2018-04-09 13:43:22 +09:00) https://github.com/whatwg/html/issues/3617

[13] 840866 - Allow audio to autoplay, but optionally mute output - chromium - Monorail (2018-05-19 17:08:19 +09:00) https://bugs.chromium.org/p/chromium/issues/detail?id=840866

[14] iOS10 Mobile Safariにおけるビデオの自動再生(インライン再生) - Qiita (2018-09-20 14:46:14 +09:00) https://qiita.com/hayakix/items/4c841ea76eab70a66e91

[15] Add "autoplay" policy-controlled feature (clelland著, 2018-09-14 01:23:19 +09:00) https://github.com/whatwg/html/commit/f23329e0c05e557faa8e588eae63223a3648c7a3

[16] Add "autoplay" policy-controlled feature by clelland · Pull Request #3829 · whatwg/html (2018-10-18 13:24:26 +09:00) https://github.com/whatwg/html/pull/3829