<!DOCTYPE html>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/common/utils.js"></script>
<script src="resources/utils.js"></script>
<title>Test window.fence object</title>
<body>
<script>
promise_test(async () => {
// Check that window.fence is undefined in the top-level frame.
assert_true(window.fence == null,
"window.fence should only be visible inside fenced frames.");
assert_true(fence == null,
"fence should only be visible inside fenced frames.");
// Create a fenced frame.
const fence_api_token = token();
const frame_url = generateURL("resources/fence-api-inner.https.html",
[fence_api_token]);
attachFencedFrame(frame_url);
// Wait for the fenced frame to complete its fence API tests.
await nextValueFromServer(fence_api_token);
}, "window.fence");
</script>
</body>