1. Visit https://www.youtube.com/watch?v=Ft-pWVaRnQ8 2. Hover over one of the playback controls 3. Observe a white flash
rdar://84213404
Created attachment 441184 [details] Patch
Committed r284169 (242988@main): <https://commits.webkit.org/242988@main> All reviewed patches have been landed. Closing bug and clearing flags on attachment 441184 [details].