Ventana AddEventLinstener devuelve Objeto de llamada no válido en IE

I have this snippet of code in the parent html which contains an iframe child that will send window.postmessage. Its a child to parent postmessage.

// Create IE + others compatible event handler
var eventMethod = iFrame.addEventListener ? "addEventListener" : "attachEvent";
var eventer = iFrame[eventMethod];
var messageEvent = eventMethod == "attachEvent" ? "onmessage" : "message";

eventer(messageEvent,function(e) {   // THIS ERRORS
  console.log('parent received message!:  ',e.data);
},false);

It works in firefox and chrome, but not in IE. The eventer... line causes a Invalid calling Object message in IE. Can I actually do the above code in IE?

Please note: iFrame[eventMethod] instead of window[eventMethod] in code.