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Test Info:

<!doctype html>
<title>Scheduler: postTask in Detached Scheduler</title>
<link rel="author" title="Nate Chapin" href="">
<link rel="help" href="">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
'use strict';
async_test(t => {
onload = () => {
let didRun = false;
const frame = document.body.appendChild(document.createElement('iframe'));
frame.contentWindow.scheduler.postTask(() => { didRun = true; });
// We cannot assume anything about ordering between postTask tasks and
// non-postTask or postTask tasks from different schedulers, so the best we
// can do is give the task time to run.
t.step_timeout(() => {
assert_false(didRun, 'The task should not have run.');
}, 10);
}, 'Test scheduler.postTask() from an iframe that is removed before the task runs');