redirect-same-origin-between-early-hints.html

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<!DOCTYPE html>

<meta charset=utf-8>

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

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

<script src="early-hints-helpers.sub.js"></script>

<body>

<script>

promise_test(async (t) => {

    const params = new URLSearchParams(window.location.search);

    const preload_before_redirect = params.get("preload-before-redirect");

    await fetchScript(preload_before_redirect);

    assert_true(isPreloadedByEarlyHints(preload_before_redirect),

        "Early hints before redirect should preload.");

    const preload_after_redirect = params.get("preload-after-redirect");

    await fetchScript(preload_after_redirect);

    assert_false(isPreloadedByEarlyHints(preload_after_redirect),

        "Early hints after same origin redirect should be ignored.");

}, "Early hints -> same origin redirect -> early hints -> final response.");

</script>

</body>