search improvement fixed for chrome

sails/src/assets/scripts/modules/student/controllers/addpicto.js

@@ -460,7 +460,13 @@ dashboardControllers.controller('AddPictoCtrl', function (
 
         // Order by expression length
         $scope.pictos.sort(function(a, b){
-          return a.expressions[0].text.length > b.expressions[0].text.length;
+          var val = 0;
+          if(a.expressions[0].text.length > b.expressions[0].text.length){
+            val = 1;
+          }else if(a.expressions[0].text.length < b.expressions[0].text.length){
+            val = -1;
+          }
+          return val;
         });
 
         // No data warning