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<!doctype html>
<title>crosss-document-1</title>
<script>
onmessage = function(e) {
var port = e.ports[0];
port.postMessage(e.data);
}
</script>
<!doctype html>
<title>crosss-document-1</title>
<script>
onmessage = function(e) {
var port = e.ports[0];
port.postMessage(e.data);
}
</script>