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<!DOCTYPE html>
<title>Element ready check for containing iframe</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/resources/testdriver.js"></script>
<script src="/resources/testdriver-vendor.js"></script>
<script src="../trusted-click.js"></script>
<div id="log"></div>
<iframe allowfullscreen></iframe>
<iframe allowfullscreen></iframe>
<script>
// wait for load event to avoid https://bugzil.la/1493878
window.onload = function () {
promise_test(async function (t) {
const [iframe1, iframe2] = document.getElementsByTagName("iframe");
iframe2.contentDocument.onfullscreenerror = t.unreached_func(
"fullscreenerror event"
);
await Promise.all([
trusted_request(
iframe1.contentDocument.body,
iframe1.contentDocument.body
),
fullScreenChange(),
]);
assert_equals(document.fullscreenElement, iframe1);
await Promise.all([
trusted_request(
iframe2.contentDocument.body,
iframe1.contentDocument.body
),
fullScreenChange(iframe2.contentDocument),
]);
}, "Element ready check for containing iframe");
};
</script>
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