MSE runtime issue on iPadOS 
https://bugs.webkit.org/show_bug.cgi?id=205274
Summary MSE runtime issue on iPadOS
Yvan Michel
Reported 2019-12-16 07:47:35 PST
OVERVIEW MSE does not seem available (partially) on iPadOS. Below further information about the steps to reproduce. USER-AGENT: Mozilla/5.0 (iPad; CPU OS 13_3 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/13.0.4 Mobile/15E148 Safari/604.1 SCENARIO: - I'm remote-debugging Media Source Extension support on a Safari/iPadOS blank page - On my desktop, I open Safari devtools/console to start dealing with this page - The page is loaded and I dump "window.MediaSource" in the console, it returns "undefined" - The exact same page is reloaded and now it returns "function MediaSource() { [native code] }"
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Radar WebKit Bug Importer
Comment 1 2019-12-16 11:21:03 PST
<rdar://problem/57978332>
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