ancestor-chain-same-site-to-cross-site-embed.html

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<!doctype html>

<head>

<meta charset="utf-8"/>

<meta name="timeout" content="long">

<script src="/resources/testharness.js"></script>

<script src="/cookies/resources/testharness-helpers.js"></script>

<title>Test partitioned cookies ancestor chain: cross-site embed</title>

</head>

<body>

<script>

promise_test(async t => {

  await new Promise(resolve => window.onload = () => t.step_timeout(resolve, 0));

  const partitionedCookie = "ancestor=chain";

  assert_false(window.location.href.includes(partitionedCookie));

  assert_false(document.cookie.includes(partitionedCookie));

}, "Cross-site embed partitioned cookie access");

</script>

</body>