NEW170131
[MSE] readyState doesn't open if the tab is in the background 
https://bugs.webkit.org/show_bug.cgi?id=170131
Summary [MSE] readyState doesn't open if the tab is in the background
gregory marcilhacy
Reported 2017-03-27 13:24:36 PDT
This is a bug with the Media Source Extensions and background tabs in Safari. When attaching a new MediaSource to an Audio element source while the tab is in the background, the 'sourceopen' is never triggered. Repro here: http://jsbin.com/hecohedugo/edit?js,console Actual behavior: - When a MediaSource is attached to an Audio src while the tab is in the background, the readyState is closed until the user focuses on the tab. Expected behavior: - When a MediaSource is attached to an Audio src while the tab is in the background, the readyState should be open.
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Radar WebKit Bug Importer
Comment 1 2017-03-27 17:04:41 PDT
<rdar://problem/31286985>
Eric Carlson
Comment 2 2017-03-29 12:36:23 PDT
WebKit has never allowed a new audio or video element to start in a background tab. Why should MSE be any different?
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