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- This WPT test may be referenced by the following Test IDs:
- /requestidlecallback/callback-timeRemaining-cross-realm-method.html - WPT Dashboard Interop Dashboard
<!doctype html>
<meta charset="utf-8">
<meta name="timeout" content="long">
<title>IdleDeadline::timeRemaining() uses relevant global object as a high-res timestamp origin</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<body>
<script>
const t = async_test();
t.step_timeout(() => {
const iframeDelayed = document.createElement("iframe");
iframeDelayed.onload = t.step_func(() => {
requestIdleCallback(t.step_func_done(deadline => {
assert_approx_equals(
iframeDelayed.contentWindow.IdleDeadline.prototype.timeRemaining.call(deadline),
deadline.timeRemaining(),
5,
);
}));
});
document.body.append(iframeDelayed);
}, 1000);
</script>