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<!doctype html>
<meta charset="utf-8">
<title>Focus already focused iframe</title>
<script>
let failed = false;
window.onmessage = function(e) {
if (e.data == "focus") {
document.getElementsByTagName("iframe")[0].focus();
opener.step_timeout(function() {
if (failed) {
opener.postMessage("FAIL", "*");
} else {
opener.postMessage("PASS", "*");
}
}, 1500);
} else if (e.data == "FAIL") {
failed = true;
}
}
</script>