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<!doctype html>
<meta charset=utf-8>
<title>Client Hints: Delegation of hints to cross-origin frames and resources for *</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<body>
<script>
// Here's the set-up for this test:
// Step 1. (Site 1 Window) verify ch-device-memory availability.
// Step 2. (Site 1 Window) set up listener and embed Site 2 Frame.
// Step 3. (Site 2 Frame) verify ch-device-memory availability.
// Step 4. (Site 2 Frame) embeds Site 1 Frame.
// Step 5. (Site 3 Frame) verify ch-device-memory availability.
// Step 6. (Site 1 Window) exit.
promise_test(async (t) => {
// Step 1
let r = await fetch("/client-hints/inner-delegation/resources/was-sec-ch-device-memory-received.py");
assert_equals(r.status, 200, "Site 1 fetching Site 1 didn't recieve sec-ch-device-memory");
r = await fetch("https://{{hosts[alt][]}}:{{ports[https][0]}}/client-hints/inner-delegation/resources/was-sec-ch-device-memory-received.py");
assert_equals(r.status, 200, "Site 1 fetching Site 2 didn't recieve sec-ch-device-memory");
r = await fetch("https://{{domains[www2]}}:{{ports[https][0]}}/client-hints/inner-delegation/resources/was-sec-ch-device-memory-received.py");
assert_equals(r.status, 200, "Site 1 fetching Site 3 didn't recieve sec-ch-device-memory");
// Step 2
const site2Frame = document.createElement("iframe");
site2Frame.src = "https://{{hosts[alt][]}}:{{ports[https][0]}}/client-hints/inner-delegation/resources/accept_ch_delegation_to_all_iframe.sub.https.html";
site2Frame.allow = "ch-device-memory *"
document.body.appendChild(site2Frame);
// Step 6
return new Promise(resolve => {
window.addEventListener("message", resolve);
}).then(e => {
assert_equals(e.data, "ch-device-memory is available as expected for all");
});
}, "postMessage: First-Party to Third-Party, Cross-Partition, Same-Origin");
</script>
</body>
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