[Webkit-unassigned] [Bug 243982] New: REGRESSION (iOS 16 Beta 5) Video is broken for WebRTC call if User navigates to Youtube and back

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=243982

            Bug ID: 243982
           Summary: REGRESSION (iOS 16 Beta 5) Video is broken for WebRTC
                    call if User navigates to Youtube and back
           Product: WebKit
           Version: Other
          Hardware: iPhone / iPad
                OS: Other
            Status: NEW
          Severity: Major
          Priority: P2
         Component: WebRTC
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: madara.freimane at testdevlab.com
                CC: youennf at gmail.com

Created attachment 461666

  --> https://bugs.webkit.org/attachment.cgi?id=461666&action=review

sysdiagnose_2022.08.16_11-45-16+0300_iPhone-OS_iPhone_20A5339d.tar.gz

Summary:
REGRESSION (iOS 16 Beta 5) Video is broken for WebRTC call if User navigates to Youtube and back

Tested devices:
Bug is reproducible on:
- iPhone 13 | iOS 16 Beta 5 (20A5339d)
- iPhone 11 Pro Max | iOS 16 Beta 5 (20A5339d)

Bug is no reproducible on:
- iPhone 11 | iOS 15.6 (19G71)

Use case:
Precondition:
User is in active WebRTC call
Permissions for camera and microphone are set to "Ask" in browser settings

Steps:
1. iOS 16 User navigates to Youtube and listens music for ~3min
2. iOS 16 User navigates back to the Safari browser
3. iOS 16 User accepts permissions 

Actual result:
The outgoing video is broken, and other User sees the black video from iOS 16 User

Expected result:
The outgoing video is available, and other User sees the good incoming video from iOS 16 User

Reproducibility:
100%

Additional information:
-Log file added in attachments (defect reproduced on 16.08.22 at 11:45 EET)

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