David Taylor 7e6107aad7
PERF: Remove old fullscreen-detection code (#31075)
This code was calling `elementFromPoint` on every scroll event. This is
an expensive browser API, and also seems to trigger a premature 'paint'
event during initial render. This seems to trigger
cumulative-layout-shift metric problems, even though the shift was never
actually visible onscreen.

This workaround was added more than 7 years ago, and it seems like
`document.fullscreenElement` now correctly detects fullscreen youtube
embeds. So we should be able to remove the `elementFromPoint` call
without affecting any functionality.
2025-01-30 17:37:02 +00:00
..