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<!doctype html>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<body>
<script>
promise_test(async (t) => {
const i = await setupIframe();
const watcher = new i.contentWindow.CloseWatcher();
watcher.oncancel = () => i.remove();
watcher.onclose = () => t.unreached_func("close event must not fire");
watcher.close();
}, "detaching the iframe during the cancel event");
promise_test(async (t) => {
const i = await setupIframe();
const watcher = new i.contentWindow.CloseWatcher();
watcher.onclose = () => i.remove();
watcher.close();
}, "detaching the iframe during the close event");
promise_test(async (t) => {
const i = await setupIframe();
const watcher = new i.contentWindow.CloseWatcher();
i.remove();
watcher.destroy();
}, "detaching the iframe then calling destroy()");
promise_test(async (t) => {
const i = await setupIframe();
const watcher = new i.contentWindow.CloseWatcher();
watcher.oncancel = () => t.unreached_func("cancel event must not fire");
watcher.onclose = () => t.unreached_func("close event must not fire");
i.remove();
watcher.close();
}, "detaching the iframe then calling close()");
promise_test(async (t) => {
const i = await setupIframe();
const iCloseWatcher = i.contentWindow.CloseWatcher;
const iDOMException = i.contentWindow.DOMException;
i.remove();
assert_throws_dom("InvalidStateError", iDOMException, () => new iCloseWatcher());
}, "detaching the iframe then constructing a CloseWatcher");
function setupIframe() {
return new Promise(resolve => {
const i = document.createElement("iframe");
i.onload = () => resolve(i);
i.src = "/common/blank.html";
document.body.append(i);
});
}
</script>
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