After Effect CC: Custom JavaScript functions of a flashplayer object return no value

Hi

With AfterEffects CC scripting it looks like custom JavaScript functions of a flashplayer object return no value when invoked from ActionScript code

This can be seen in the sample script shipped with ExtendScript Toolkit named ActionScriptDemo.jsx:

Create a flashplayer object in a JSX file with a custom getJavaScriptNumber function:

var flashPlayer = flashPalette.add("flashplayer", cBounds);

flashPlayer.getJavaScriptNumber = function() {

          return 12345;

}

Invoke the custom getJavaScriptNumber function from ActionScript code of an .MXML file:

public function requestJavaScriptNumber():void{

          var res:int = ExternalInterface.call("getJavaScriptNumber");

          estkNumber = res;

}

The ExternalInterface.call("getJavaScriptNumber") call return no value

Any idea or a suggested workaround??

Thanks, Erez.