[Webkit-unassigned] [Bug 259337] REGRESSION (iOS 17 Beta): Incoming and outgoing VIDEO is lost when iOS User puts browser in the background and relaunches it/locks device screen and unlocks it

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=259337

--- Comment #3 from Madara Freimane <madara.freimane at testdevlab.com> ---
Hi, Youenn!

Unfortunately, this bug is still reproducible.
Tested devices and browsers:
- iPhone 11 Pro (iOS 17 Developer Beta 6, build: 21A5312c) and Safari
- iPhone 14 Pro (iOS 17 Public Beta 4, build: 21A5312c) and Safari
- iPhone 13 (iOS 17 Public Beta 4, build: 21A5312c) and Safari


Additional information:
Added a new sysdiagnostics file (bug reproduced at 18:16, EET, 18.08.2023.):
https://drive.google.com/file/d/1uYlmin42PtjF2hSV_7JTsuTv5_L1nIXQ/view?usp=sharing 

Observed the following behaviors:
If we lock, unlock the screen/put browser in the background, relaunch it, and wait:
-Incoming video recovers after ~1 mins.
-Outgoing does not recover, User has to re-enable camera after ~ 1 min.

If we lock, unlock the screen/put browser in the background, relaunch it, and try to re-enable camera immediately:
-User loses the incoming and outgoing video and it is not possible to get video back, iOS User has to kill the Safari browser and relaunch it.

If we lock, unlock the screen/put browser in the background, relaunch it, and try to rejoin a call immediately while videos are not working:
-No videos at all until Users on both sides re-enables their cameras.

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