AngularJS - Shared Variable

HTML

<div ng-app="Shared">
    <div ng-controller="MainCtrl">
        {{myVar.data}}
    </div>
    <div ng-controller="Secondtrl">
        {{myVar.data}}
        <input type="text" ng-model="myVar.data" />
    </div>

</div>

JavaScript

angular.module('Shared', []);

angular.module("Shared").factory("myService", function(){
  return {sharedObject: {data: "eran" } }
});

angular.module('Shared').controller('MainCtrl', function ($scope, myService) {
  $scope.myVar = myService.sharedObject;
});

angular.module('Shared').controller('Secondtrl', function($scope, $http, myService) {
  $scope.myVar = myService.sharedObject;
});