<!DOCTYPE html>
<head>
<script src="../../resources/testharness.js"></script>
<script src="../../resources/testharnessreport.js"></script>
</head>
<body>
<b><p><script>

let oldBody = document.body;
oldBody.remove();

let b = oldBody.querySelector('b');
document.documentElement.appendChild(b);
/* html
     + b
       + p
         + script */

let iframe = document.createElement('iframe');
b.firstChild.appendChild(iframe);
/* html
     + b
       + p
         + script
         + iframe */

let oldGlobal = iframe.contentWindow;

window.onload = () => {
    document.documentElement.appendChild(document.createElement('body'));
    let test = async_test('An iframe removed by the adoption agency algorithm must be unloaded');
    test.step(() => {
        assert_not_equals(oldGlobal, iframe.contentWindow);
    });
    test.done();
}

</script></b>