Does the API report an instability event or not when scroll anchoring fully compensates for DOM insertions happening above the viewport?
Description
Description
| Status | Subtype | Assigned | Task | ||
|---|---|---|---|---|---|
| Resolved | • Gilles | T216595 Add Origin Trial support to MediaWiki | |||
| Resolved | • Gilles | T216594 Collect Layout Instability API data | |||
| Resolved | • Gilles | T220110 Research Layout Instability API + scroll anchoring interaction |
Event Timeline
Comment Actions
Verified this on Vagrant and a LayoutJank event is fired even if scroll anchoring fully compensated it, meaning that it have no visible effect to the user.
Comment Actions
Scratch that: it only fired events when there was actually a visible effect, which happened to be on the left sidebar that moved up in my case. This means we're not getting false positives due to scroll anchoring, the events we are seeing are real.