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<!DOCTYPE html>
<title>View transitions: pagereveal event provides viewTransition</title>
<link rel="help" href="https://drafts.csswg.org/css-view-transitions-2/">
<meta name="timeout" content="long">
<script src="/resources/testdriver.js"></script>
<script src="/resources/testdriver-vendor.js"></script>
<script src="/page-visibility/resources/window_state_context.js"></script>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script>
const params = new URLSearchParams(location.search);
const is_initial_page = !params.has('new');
// This test navigates to itself with a changed query parameter. The test
// checks are performed on the navigated-to document.
if (is_initial_page) {
onload = () => {
requestAnimationFrame(() => requestAnimationFrame(() => {
location.replace(location.href + '?new');
}));
};
} else {
promise_test(async t => {
const render_blocker = document.createElement("script");
render_blocker.blocking = "render";
render_blocker.src = "/loading/resources/dummy.js?pipe=trickle(d10)";
render_blocker.type = "module";
document.head.append(render_blocker);
const ev_promise = new Promise(
resolve => addEventListener('pagereveal', e => resolve(e)));
const wsc = window_state_context(t);
await wsc.minimize();
render_blocker.remove();
await wsc.restore();
const ev = await ev_promise;
assert_equals(ev.viewTransition, null,
"Transition should have been skipped when document was minimized");
}, "Inbound cross-document view-transition should be skipped if document is hidden");
}
</script>
<style>
@view-transition {
navigation: auto;
}
</style>
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