parent-yes-child-yes-subdomain.sub.https.html

<!DOCTYPE html>
<meta charset="utf-8">
<title>Parent is origin-keyed, child is site-keyed, child is a subdomain of the parent</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>

<div id="log"></div>

<script type="module">
import {
  insertIframe,
  testDifferentAgentClusters,
  testGetter
} from "../resources/helpers.mjs";

promise_setup(async () => {
  await insertIframe("{{hosts[][www]}}", "?1");
});

// Both request origin-keying, so the parent ends up in one origin-keyed agent
// cluster (the base domain's origin), and the child ends up in a different
// origin-keyed agent cluster (the www subdomain's origin).
testDifferentAgentClusters([self, 0]);

testGetter(self, true, "parent");
testGetter(0, true, "child");
</script>

chromium/third_party/blink/web_tests/external/wpt/html/browsers/origin/origin-keyed-agent-clusters/1-iframe/parent-yes-child-yes-subdomain.sub.https.html