[Bug] Fullscreen mode sometimes immediately exits after activation

[raxod502]

Describe the bug
Under some circumstances, attempting to enter fullscreen mode will activate fullscreen but then automatically deactivate it a moment later. The behavior repeats no matter how many times the user attempts to enter fullscreen mode. Sometimes, restarting the app or device prevents the bug from occurring. However, after at least one video has been played and the user navigates to another one, the behavior recurs.

Steps to Reproduce

1. Open an Invidious instance in Firefox
2. Open a video
3. Enter fullscreen
4. If the behavior does not occur, leave fullscreen and enter again
5. If the behavior does not occur, leave fullscreen, go back to the previous page, open a new video, enter fullscreen again
6. Behavior reproduces, I have yet to see any case where it does not happen by now

Logs
The console logs are not accessible in mobile browsers to my knowledge

Screenshots
Screen recording here: https://nextcloud.intuitiveexplanations.com/s/qiGHmiZy659fpNJ

Additional context
The screen recording shows Invidious installed as a shortcut on the home screen, but the same behavior occurs when browsing directly to it in Firefox. Also, the screen recording shows my self-hosted Invidious instance at https://youtube.intuitiveexplanations.com, but the same behavior occurs with https://yewtu.be.

• OS: GrapheneOS (Android 14)
• Browser: Firefox (119.0)

[raxod502]

FYI: This issue is resolved by upgrading video.js dependency:

 video.js:
-  version: 7.12.1
-  shasum: 1d12eeb1f52e3679e8e4c987d9b9eb37e2247fa2
+  version: 8.9.0
+  shasum: 0d8ea582e8d10eccf82ae16760b3829fa91442e3

Although that brings in other issues and breakage as mentioned in #3011 and related.

[unixfox]

FYI: This issue is resolved by upgrading video.js dependency:

 video.js:
-  version: 7.12.1
-  shasum: 1d12eeb1f52e3679e8e4c987d9b9eb37e2247fa2
+  version: 8.9.0
+  shasum: 0d8ea582e8d10eccf82ae16760b3829fa91442e3

Although that brings in other issues and breakage as mentioned in #3011 and related.

#4439