<html>
<head>
<title>Service Worker returning an opaque cloned response</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/service-workers/service-worker/resources/test-helpers.sub.js"></script>
</head>
<body>
<script>
var registration;
var iframe;
promise_test(async (test) => {
    registration = await navigator.serviceWorker.getRegistration("resources/");
    if (registration)
        await registration.unregister();
    registration = await navigator.serviceWorker.register("clone-opaque-being-loaded-response-worker.js", { scope : "resources/" });
    activeWorker = registration.active;
    if (activeWorker)
        return;
    activeWorker = registration.installing;
    await new Promise(resolve => {
        activeWorker.addEventListener('statechange', () => {
            if (activeWorker.state === "activated")
                resolve();
        });
    });
}, "Setup worker");

promise_test(async (test) => {
    iframe = await with_iframe("resources/clone-opaque-being-loaded-response-iframe.html");
    assert_equals(iframe.contentWindow.document.body.innerHTML.trim(), "PASS");
    iframe.remove();
}, "Ensure opaque response fetch is working");
</script>
</body>
</html>