<!DOCTYPE html>
<html>
<body>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script>
function with_iframe(url) {
    return new Promise(function(resolve) {
        var frame = document.createElement('iframe');
        frame.src = url;
        frame.onload = function() { resolve(frame); };
        document.body.appendChild(frame);
    });
}
var frame;
promise_test(async (test) => {
    frame = await with_iframe('resources/upgrade-iframe.html');
    assert_true(frame.contentWindow.sendBeacon(), "Send beacon successfully");
    assert_true(await frame.contentWindow.checkBeaconURL(test), "Upgraded beacon URL");
}, "Ensure beacon gets upgraded");

promise_test(async (test) => {
    assert_true(frame.contentWindow.sendRedirectedBeacon(), "Send beacon successfully");
    assert_true(await frame.contentWindow.checkBeaconURL(test), "Upgraded beacon URL");
}, "Ensure beacon gets upgraded after redirection");
</script>
</body>
</html>