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<!doctype html>
<meta charset="utf-8">
<html>
<head>
<title>Auxiliary Browsing Contexts: window.opener when Opener Removed/Closed</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/common/PrefixedLocalStorage.js"></script>
</head>
<body>
<div id="log"></div>
<script>
var prefixedLocalStorage;
setup (() => prefixedLocalStorage = new PrefixedLocalStorageTest());
async_test(t => {
t.add_cleanup (() => prefixedLocalStorage.cleanup());
var a = document.createElement('a');
a.href = prefixedLocalStorage.url('resources/open-closer.html');
a.target = '_blank';
prefixedLocalStorage.onSet('openerIsNull', t.step_func_done(e => {
// The window for this auxiliary browsing context's opener
// has been closed and discarded, so the aux browsing context
// should now report `null` for `window.opener`
assert_equals(e.newValue, 'true');
}));
document.body.append(a);
a.click();
}, 'An auxiliary browsing context should report `null` for `window.opener` when that browsing context is discarded');
</script>
</body>
</html>
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