prefetch-accept.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:
- /preload/prefetch-accept.html - WPT Dashboard Interop Dashboard

<!DOCTYPE html>

<title>Ensures that prefetch works with documents</title>

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

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

<script src="/common/utils.js"></script>

<script src="/common/dispatcher/dispatcher.js"></script>

<script src="resources/prefetch-helper.js"></script>

<body>

<script>

promise_test(async t => {

    const {href, uid} = await prefetch({

        file: "prefetch-exec.html",

        type: "text/html",

        origin: document.origin});

    const popup = window.open(href + "&cache_bust=" + token());

    const remoteContext = new RemoteContext(uid);

    t.add_cleanup(() => popup.close());

    await remoteContext.execute_script(() => "OK");

    const results = await get_prefetch_info(href);

    assert_equals(results.length, 2);

    assert_equals(results[0].headers.accept, results[1].headers.accept);

}, "Document prefetch should send the exact Accept header as navigation")

</script>

</body>