Pointer co-ordinates: (0
Main thread animation.
- Must be on Chrome Canary 78.0.3899.1 or higher for this to work.
- Click on "Induce main thread jank" and try to scroll by dragging the thumb (or by clicking on the scrollbar arrows/track).
Notice that the scrolling is extremely janky.
- Now enable "Compositor threaded scrollbar scrolling" from about:flags and try the same. (Please note that there are still some
outstanding bugs that are actively being worked on).