[NSFW] Video doesn't play on yespornplease.com

URL: https://yespornplease.com/v/935096698

Tested with: Browser / Version: Tor v.68.6.0 Operating System: Samsung Galaxy S6 Edge (Android 7.0) - 1440 x 2560 pixels (~577 ppi pixel density)

Steps to Reproduce:

1. Navigate to https://yespornplease.com/v/935096698
2. Tap to play the video and observe behavior.

Expected result: Video plays.

Actual result: An error message ("no video with supported format and MIME type found") is displayed.

Note:

1. Screenshot: https://prnt.sc/s4ozbs
2. This was previously reported here: https://github.com/webcompat/web-bugs/issues/50584#event-3211735969

Trac:
Username: Mozilianulb