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// META: script=constants.sub.js
// META: timeout=long
// META: variant=?default
// META: variant=?wss
// META: variant=?wpt_flags=h2
async_test(t => {
window.wsurl = SCHEME_DOMAIN_PORT + '/does-not-exist';
let wsframe;
window.wsonerror = () => {
wsframe.remove();
// If this didn't crash then the test passed.
t.done();
};
wsframe = document.createElement('iframe');
wsframe.srcdoc = `<script>
const ws = new WebSocket(parent.wsurl);
ws.onerror = parent.wsonerror;
</script>`;
onload = () => document.body.appendChild(wsframe);
}, 'removing an iframe from within an onerror handler should work');
done();
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