 <!-- This Source Code Form is subject to the terms of the Mozilla Public
    - License, v. 2.0. If a copy of the MPL was not distributed with this
    - file, You can obtain one at http://mozilla.org/MPL/2.0/. -->
<!DOCTYPE html>
<meta charset=UTF-8>
<body></body>
<script>
const cpmm = SpecialPowers.Services.cpmm;
var result;

for (var i = 0; i < 100; i++) {
var div = document.createElement("div");
div.innerHTML = "Hello World!";
document.body.insertBefore(div, document.body.firstChild);
}

async function pauseOnce() {
    window.addEventListener('scroll', done);
    result = "test failed";
    debugger;
    result = "test passed";
}

function done() {
    cpmm.sendAsyncMessage(result);
}
</script>
