[Anonymous]

I think it  has something to do with the :

ng-mouseenter="navLeftService.getDropdownData(navItem.id)" in the <A> Tag.

google told me:

The ng-mouseenter directive tells AngularJS what to do when a mouse cursor enters the specific HTML element.

The ng-mouseenter directive from AngularJS will not override the element's original onmouseenter event, both will be executed.

maybe fire the event that ng-mouseenter calls?