childSandboxBridge not working
i cut and pasted the examples given in the AIR documentation and get "TypeError: Result of expression 'childInterface' [undefined] is not an object". AIR 3.9, OS X 10.9.1. any ideas? thanks.
--------------
child.html:
<html>
<head>
<title>child</title>
<script type="text/javascript">
var interface = {};
interface.calculatePrice = function(){
return ".45 cents";
}
interface.storeID = "abc"
window.childSandboxBridge = interface;
</script>
</head>
<body>
<h1>child</h1>
</body>
</html>
---------------------
helloworld.html:
<html>
<head>
<title>Hello World</title>
<script type="text/javascript" src="AIRAliases.js"></script>
<script type="text/javascript">
function appLoad(){
air.trace("Hello World");
}
</script>
</head>
<body onLoad="appLoad()">
<iframe id='child' src='child.html'></iframe>
<h1>Hello World</h1>
<script>
var childInterface = document.getElementById("child").contentWindow.childSandboxBridge;
air.trace(childInterface.calculatePrice()); //traces ".45 cents"
air.trace(childInterface.storeID); //traces "abc"
</script>
</body>
</html>
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