title: Bootstrap 3.2 and IE9 collapse function
body: <p>Im using bootstrap 3.2 and Jquery 1.11.1. The webapp works fine in all major browser including IE 10 and 11. Im using the .collapse('toggle') function for the navbar. In other browsers it adds the "in" class but for some reason that does not happen the first time I open the menu in IE 9. Subsequent calls add the ".in" class and remove it. The first click does not trigger it.</p>
  
  <p>How to make it work properly in IE9?  </p>