LayoutTests/http/tests/cache/cache-control-immutable-http.html

<script>
if (window.testRunner) {
    testRunner.dumpAsText();
    testRunner.waitUntilDone();
}
</script>
<script src="resources/cache-control-immutable.js"></script>
<body>
<div id=logdiv><div>
<script>
test(1000, (revalidated) => {
    log("HTTP: Test if non-expired subresource with Cache-control: immutable is revalidated", true, revalidated);
    test(0, (revalidated) => {
        log("HTTP: Test if expired subresource with Cache-control: immutable is revalidated", true, revalidated);
        if (window.testRunner)
            testRunner.notifyDone();
    });
});
</script>