accept-ch.wildcard.https.sub.html

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This test has a WPT meta file that expects 1 subtest issues.
This WPT test may be referenced by the following Test IDs:
- /client-hints/accept-ch.wildcard.https.sub.html - WPT Dashboard Interop Dashboard

<!DOCTYPE html>

<body>

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

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

<script>

// Here's the set-up for this test:

// Step 1 (top-frame) Embeds a cross-origin iframe.

// Step 2 (sub-frame) Make a cross-origin POST request.

// Step 3 (sub-frame) Checks if platform version header is present and alerts top frame.

// Step 4 (top-frame) Asserts header was present and returns.

async_test(t => {

    // Step 4

    window.addEventListener("message", t.step_func(e => {

        assert_equals(e.data, "HadPlatformVersion");

        t.done();

    }));

    // Step 1

    let iframe = document.createElement("iframe");

    iframe.src = "https://{{domains[www1]}}:{{ports[https][0]}}/client-hints/resources/accept-ch.wildcard.iframe.https.sub.html";

    document.body.appendChild(iframe);

}, "Accept-CH with wildcard policy and iframe subresource");

</script>

</body>

</html>