chromium/src/third_party/blink/web_tests/fast/dom/Window/resources/window-postmessage-clone-frames-frame.html - manifest_repos/chromium_src - Git at Google

 <script>
 var tests = [];
 window.onmessage = function (event) {
     tests.push({event: event, eventData: event.data});
     event.source.postMessage("blargh", "*");
 }
 </script>
	<script>
	var tests = [];
	window.onmessage = function (event) {
	tests.push({event: event, eventData: event.data});
	event.source.postMessage("blargh", "*");
	}
	</script>