imageCropResult is broken in demo

[ttbarnes]

This does not log the new value:

$scope.$watch('imageCropResult', function(newVal) {
  if (newVal) {
    console.log('imageCropResult', newVal);
  }          
});

[breaktag]

I am having same problem with this. The JSBin is working, but it doesn't in my code. Perhaps it is the angular version? Any ideas?