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<!DOCTYPE html>
<body style="background: red;">
<script>
window.parent.postMessage("child-loaded",
{targetOrigin: "*", includeUserActivation: true});
window.addEventListener("click", event => {
window.parent.postMessage("child-clicked",
{targetOrigin: "*", includeUserActivation: true});
var win = window.open('404.html');
win.close();
});
window.addEventListener("message", event => {
if (event.data == "report") {
window.parent.postMessage("child-report",
{targetOrigin: "*", includeUserActivation: true});
}
if (event.data == "report-no-activation") {
window.parent.postMessage("child-report-no-activation",
{targetOrigin: "*", includeUserActivation: false});
}
});
</script>
</body>