demo · v140
ViewTransition.finished timing
Flip the swatch with a slow 1.5s view transition. The timestamps below capture when each promise resolves. In v140 finished resolves only after the commit to paint, never before.
Press flip to run.
const t = document.startViewTransition({ update() { mutate(); } });
await t.ready; // animations can now run
await t.updateCallbackDone;
await t.finished; // v140: resolves AFTER the commit, never before
see also
- View Transition finished promise timing change — feature index
- ChromeStatus entry