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[Gecko Bug 1085214] Implement location.ancestorOrigins #56966

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Merged
moz-wptsync-bot merged 1 commit into from
Jan 3, 2026
Merged

[Gecko Bug 1085214] Implement location.ancestorOrigins #56966

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70 changes: 70 additions & 0 deletions ...wsers/history/the-location-interface/location-ancestor-origins-inactive-document.sub.html
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Original file line number Diff line number Diff line change
@@ -0,0 +1,70 @@
<!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;
iframe.src = "http://{{hosts[alt][]}}:{{ports[http][0]}}/common/blank.html";
});

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>
42 changes: 42 additions & 0 deletions ...ers/history/the-location-interface/location-ancestor-origins-referrerpolicy-snapshot.html
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Original file line number Diff line number Diff line change
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<!doctype html>
<title>location.ancestorOrigins snapshot timing of referrerpolicy</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<body>
<script>
promise_test(async () => {
assert_implements(location.ancestorOrigins);
const iframe = document.createElement('iframe');
iframe.src = '/common/blank.html?pipe=trickle(d1)';
iframe.referrerPolicy = 'no-referrer';
const loaded = new Promise(resolve => iframe.onload = resolve);
document.body.append(iframe);
// initial about:blank should see 'no-referrer' results
assert_array_equals(Array.from(iframe.contentWindow.location.ancestorOrigins), ['null']);
iframe.referrerPolicy = '';
await loaded;
// The referrerpolicy attribute get snapshotted at step 16 of "beginning navigation"
// https://html.spec.whatwg.org/#beginning-navigation and result should therefore,
// still be ["null"], here.
assert_array_equals(Array.from(iframe.contentWindow.location.ancestorOrigins), ["null"]);
});

promise_test(async () => {
assert_implements(location.ancestorOrigins);
const iframe = document.createElement('iframe');

iframe.referrerPolicy = 'no-referrer';
const loaded = new Promise(resolve => iframe.onload = resolve);
document.body.append(iframe);
// initial about:blank should see 'no-referrer' results
assert_array_equals(Array.from(iframe.contentWindow.location.ancestorOrigins), ['null']);
iframe.referrerPolicy = '';
await loaded;

await new Promise(resolve => {
iframe.onload = resolve;
iframe.src = '/common/blank.html?pipe=trickle(d1)';
});
assert_array_equals(Array.from(iframe.contentWindow.location.ancestorOrigins), [window.origin]);
});
</script>
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