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<!DOCTYPE html>
<script src="/tests/SimpleTest/SimpleTest.js"></script>
<h2>Inner</h2>
<input></input><br>
<script type="text/javascript">
let input = document.querySelector("input");
window.onmessage = function(e) {
info(`inner received message: ${e.data}`);
if (e.data === "focus") {
input.focus();
window.parent.postMessage("done", "*");
}
};
</script>