ViewTransition: finished property
Baseline
2025
Newly available
Since October 2025, this feature works across the latest devices and browser versions. This feature might not work in older devices or browsers.
The finished read-only property of the
ViewTransition interface is a Promise that fulfills once the transition animation is finished, and the new page view is visible and interactive to the user.
finished will only reject in the case of a same-document (SPA) transition, if the callback passed to document.startViewTransition() throws or returns a promise that rejects. This would indicate that the new state of the page wasn't created.
If a transition animation fails to start or is skipped during the transition using ViewTransition.skipTransition(), the end state is still reached therefore finished will still fulfill.
Value
A Promise.
Examples
Different transitions for different navigations
Sometimes certain navigations will require specifically tailored transitions, for example, a "back" navigation may want a different transition to a "forward" navigation. The best way to handle such cases is to set a class name on the <html> element, handle the transition — applying the correct animation using a tailored selector — and then remove the class name once the transition is finished.
async function handleTransition() {
if (isBackNavigation) {
document.documentElement.classList.add("back-transition");
}
const transition = document.startViewTransition(() =>
updateTheDOMSomehow(data),
);
try {
await transition.finished;
} finally {
document.documentElement.classList.remove("back-transition");
}
}
Note:
isBackNavigation isn't a built-in feature; it's a theoretical function that could be implemented using the Navigation API or similar.
Specifications
| Specification |
|---|
| CSS View Transitions Module Level 1 # dom-viewtransition-finished |