To update the hover state when a page scrolls or changes layout, Blink currently dispatches fake mouse moves based on a timer because the mouse does not move. Unfortunately, every mouse move does a hit test which affects both performance and testing. This change applies the hover effect only when a mouse physically moves, improving performance and eliminating issues created by fake mouse events.
Status in Chromium
Enabled by default (tracking bug) in:
- Chrome for desktop release 77
Consensus & Standardization
- No signals
Last updated on 2021-03-12