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<!DOCTYPE html>
<title>Test window.fence availability in iframes.</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/common/utils.js"></script>
<script src="/common/dispatcher/dispatcher.js"></script>
<script src="resources/utils.js"></script>
<body>
<script>
promise_test(async(t) => {
const frame = await attachIFrameContext();
await frame.execute(() => {
assert_equals(window.fence, null);
});
}, 'window.fence is unavailable in normal (non-urn) iframes');
promise_test(async(t) => {
// window.fence works in urn iframes.
var frame = await attachIFrameContext({generator_api: 'fledge'});
await frame.execute(() => {
assert_not_equals(window.fence, null);
});
// window.fence works after navigating to a new urn.
frame = await replaceFrameContext(frame, {generator_api: 'fledge'});
await frame.execute(() => {
assert_not_equals(window.fence, null);
});
// window.fence still works after embedder-initiated navigations to non-urns,
// because the concept of "embedder-initiated" navigations is nebulous in
// iframes.
frame = await replaceFrameContext(frame);
await frame.execute(() => {
assert_not_equals(window.fence, null);
});
}, 'window.fence is available in urn iframes');
promise_test(async(t) => {
// window.fence works in urn iframes.
const frame = await attachIFrameContext({generator_api: 'fledge'});
await frame.execute(async () => {
assert_not_equals(window.fence, null);
const nested_frame = await attachIFrameContext();
await nested_frame.execute(() => {
assert_not_equals(window.fence, null);
});
});
}, 'window.fence is available in same-origin subframes of urn iframes');
</script>
</body>
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