Snoozed alarm makes no sound if watching a video in Safari.

Maybe this is an edge case but it's caused me to be late many, many times until I figured out what was going on. I use the Safari app (not the YouTube app) to listen to calming YouTube videos using my AirPods Pro to help me sleep, and they autoplay through the night so that there are still videos playing in the morning when my alarm goes off. The initial alarm will sound without issue, but if I snooze the alarm it will cease to make noise when it goes off again. The alarm notification appears but the alarm itself does not sound.

Steps:

1. Set an alarm using the Clock app.

2. In the Safari app, navigate to YouTube and watch a video during the time the alarm is scheduled to activate.

3. The alarm will sound at the set time.

4. Snooze the alarm (swipe the alarm notification up, press a volume up/down button, etc.) while continuing to allow the YouTube video to play.

--> 9 minutes later, the alarm notification will appear but there will be no audible alarm.