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Test Info:
- This WPT test may be referenced by the following Test IDs:
- /css/css-view-transitions/reset-state-after-scrolled-view-transition.html - WPT Dashboard Interop Dashboard
<!DOCTYPE html>
<html class="reftest-wait">
<head>
<title>Finishing a View Transition on a scrolled page should properly reset state</title>
<link rel="match" href="reset-state-after-scrolled-view-transition-ref.html">
<style>
html {
background: lightblue;
}
body {
background-color: lightgreen;
}
::view-transition-group(*) {
animation-duration: 2s;
}
</style>
</head>
<body>
<p>Start</p>
<div id="block" style="height: 150vh"></div>
<p>End</p>
<script>
function scrollBy(y) {
return new Promise(resolve => {
addEventListener("scroll", () => {
requestAnimationFrame(() => {
requestAnimationFrame(resolve);
});
}, { once: true, capture: true });
document.documentElement.scrollBy({
top: y,
behavior: "instant"
});
});
}
addEventListener("load", async () => {
await scrollBy(document.documentElement.scrollHeight / 2);
const transition = document.startViewTransition(() => { block.style.height = '200vh' });
await transition.ready;
scrollBy(document.documentElement.scrollHeight / 2);
await transition.finished;
document.documentElement.classList.remove("reftest-wait");
});
</script>
</body>
</html>