Bugs information on iOS/iPad OS Safari 15

iOS/iPad OS 15 was released at September 21st, 2021. Some high-impact bugs have been reported on Safari 15.

Bug information reported

• MediaStreamTack audio volume too low
  
  • Issue: https://bugs.webkit.org/show_bug.cgi?id=230902
• Audio over peer connection becomes latent when changing the output
  
  • Issue: https://bugs.webkit.org/show_bug.cgi?id=231110
• Getting an incoming phone call on iOS 15 breaks WebRTC calls
  
  • Issues:
    https://bugs.webkit.org/show_bug.cgi?id=230537
    https://bugs.webkit.org/show_bug.cgi?id=230536

We discovered some failures other than the above. These has been not reported on bugs.webkit.org as of 4th October, 2021. The details are under investigation.

• Bigger noise is superimposed on audio Stream to the point that the voice cannot be heard. 
• The audio stream isn't sent or played in the case of using bluetooth.

About the workaround of bugs

As it has been a short time since these bugs were identified, we have not been able to provide a workaround for them on iOS/iPad OS, nor have we established a workaround.

If there is any progress in investigating and addressing the issue, we will share it in the announcement as soon as possible.