<!DOCTYPE html>
<script src="../../resources/testharness.js"></script>
<script src="../../resources/testharnessreport.js"></script>
<div hidden=until-found></div>
<script>
async_test(t => {
const host = document.createElement('div');
document.body.appendChild(host);
const root = host.attachShadow({mode: 'closed'});
const match = document.createElement('div');
match.textContent = 'match';
root.appendChild(match);
match.classList.add('hidden');
match.addEventListener('beforematch', () => {
match.classList.remove('hidden');
host.remove();
});
testRunner.findString('match', ['Async']);
requestAnimationFrame(t.step_func(() => {
requestAnimationFrame(t.step_func_done());
}));
}, `Disconnecting a match in shadowdom shouldn't crash the renderer.`);
</script>