Dynamic has-bouncing issue

Hello everyboby,

I am trying to disable bounce effect based on the scroll position and I failed to have to desired result. Here is my source code :

<ion-content class="com-contener has-header" delegate-handle="comContener" on-scroll="checkScroll()" has-bouncing="active.bounce">
  <img class="com-img" ng-src="data:image/jpeg;base64,{{com.img1}}" />
  <div class="padding com-content">
    <div class="com-title">{{com.title}}</div>
      <p>
        {{com.content}}
      </p>
    </div>
</ion-content>

and the controller:

.controller('ComDetailCtrl', function($scope, $stateParams, $ionicScrollDelegate, $timeout, Communication) {
	$scope.com = Communication.get($stateParams.comId);
	
	$scope.active = {
		bounce : false
	};
	
	$scope.checkScroll = function() {
		if ($ionicScrollDelegate.$getByHandle('comContener').getScrollPosition().top < 10) {
			$scope.active.bounce = false;
			console.log("inactif");
		} else {
			$scope.active.bounce = true;
			console.log("actif");
		}
	}
  
}) 

The scroll position works great but the has-bouncing remain set to false.

Can someone help me ?