Event "orientationchange" it's triggered once (occurs one time)

I have defined a callback to react every time a device is rotated.
And to debug this behaviour I publish “log messages” on the UI. And that messages inside the EventListener callback are executed once, no matter how many time I rotate my device.

I have created a example, look: http://play.ionic.io/app/22fc080b44da
I expect to see the messages repeated triggered by the Event.

What is not working as expected?