internet explorer - Not able to render on IE9 with angularjs - 1.2 -

i have piece of code render categories.

<ul role="menuitem" class="dropdown-menu" role="menu" aria-labelledby="single-button" >     <li ng-repeat="x in supercategories | orderby:'name'" >         <a href="javascript:void(0)" ng-click="changesupercategory(x)">{{x.name}}</a>     </li> </ul> 

the code working fine in mozzile , chrome , ie10. not in ie9 or below.

how can solve issue?