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<!DOCTYPE html>
<html>
<title>View transitions: skipTransition() invoked before a synchronous updateDOM callback is invoked</title>
<link rel="help" href="https://www.w3.org/TR/css-view-transitions-1/">
<link rel="author" href="mailto:khushalsagar@chromium.org">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<style>
div {
width: 100px;
height: 100px;
background: blue;
contain: paint;
}
</style>
<div id=first></div>
<script>
promise_test(async t => {
assert_implements(document.startViewTransition, "Missing document.startViewTransition");
return new Promise(async (resolve, reject) => {
let transition = document.startViewTransition(() => {
first.style.viewTransitionName = "target";
});
transition.skipTransition();
await transition.finished;
if (window.getComputedStyle(first).viewTransitionName == "target")
resolve();
else
reject();
});
}, "finished promise should be resolved if skipTransition() is invoked before a synchronous updateCallbackDone callback is dispatched");
</script>
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