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Test Info:
- This WPT test may be referenced by the following Test IDs:
- /html/browsers/history/the-location-interface/location-ancestor-origins-inactive-document.sub.html - WPT Dashboard Interop Dashboard
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Location.ancestorOrigins lifetime behavior</title>
<link rel="help" href="https://html.spec.whatwg.org/multipage/browsing-the-web.html#dom-location-ancestororigins">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
</head>
<body>
<script>
function createIframeAndNavigate(test, src) {
return new Promise(resolve => {
const iframe = document.createElement("iframe");
iframe.onload = () => {
resolve(iframe);
}
iframe.src = src;
document.body.appendChild(iframe);
test.add_cleanup(() => {
iframe.remove();
});
});
}
promise_test(async t => {
assert_implements(location.ancestorOrigins, "location.ancestorOrigins not implemented");
const iframe = await createIframeAndNavigate(t, "about:blank");
assert_array_equals(
iframe.contentWindow.location.ancestorOrigins,
[location.origin],
"Initial ancestorOrigins should match expected placeholder value"
);
const loc = iframe.contentWindow.location;
iframe.remove();
assert_array_equals(
Array.from(loc.ancestorOrigins),
[],
"ancestorOrigins should be empty after iframe removal"
);
}, "location.ancestorOrigins returns empty list after iframe is removed and referenced Location's relevant document is null");
promise_test(async t => {
assert_implements(location.ancestorOrigins, "location.ancestorOrigins not implemented");
const iframe = await createIframeAndNavigate(t, "about:blank");
assert_array_equals(
iframe.contentWindow.location.ancestorOrigins,
[location.origin],
"Initial ancestorOrigins should match expected placeholder value"
);
const loc = iframe.contentWindow.location;
await new Promise(resolve => {
iframe.onload = resolve;
});
assert_array_equals(
Array.from(loc.ancestorOrigins),
[],
"ancestorOrigins should be empty after iframe navigation"
);
}, "location.ancestorOrigins returns empty list when iframe navigated away and referenced Location's relevant document is null");
</script>
</body>
</html>