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Test Info:

<!doctype html>
<html>
<head>
<title>Auxiliary Browsing Contexts: window.opener noopener</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());
prefixedLocalStorage.onSet('openerIsNull', t.step_func_done(e => {
assert_equals(e.newValue, 'true');
}));
window.open(prefixedLocalStorage.url('resources/no-opener.html'),
'iShouldNotHaveAnOpener',
'noopener');
}, 'Auxiliary browsing context created via `window.open` setting `noopener` should report `window.opener` `null`');
</script>
</body>
</html>