postmessage-target.html

<!DOCTYPE html>
<html>
<head>
<title>postMessage target</title>
<style>
body { 
  font: normal 16px/20px Helvetica, sans-serif;
  margin: 0;
  padding: 20px;
}
</style>
</head>
<body>
<strong>This iframe is located on the same domain</strong>
<p id="test">Send me a message!</p>
<script src="/js/h5utils.js"></script>
<script>
addEvent(window, "message", function(e){
  if ( e.origin !== "http://html5demos.com" ) {
    document.getElementById("test").innerHTML = 'Ignoring message from ' + e.origin;
  } else {
    document.getElementById("test").innerHTML = e.origin + " said: " + e.data;
  }
});
</script>
</body>
</html>