Angular response headers in IE 11 not working properly unless in developer mode

So, this problem is a very strange one.

I've got code like the following:

httppromise=$http.get(url);return httppromise.then(function(response){
  $rootScope.id=response.headers("GetMyId");

This works 100% properly in Firefox, Safari and Chrome.

However, in IE 11, it gets the value once. On repeated calls, the value returned is the FIRST value, not the one it is receiving, no matter how many times the above code is called. Interesting enough, if I turn on developer mode, it works PROPERLY.

Is there ANY solution for this?