Problem welcome intro tutorial

Hi!! I have been working about this tutorial:

All works fine, but I have a problem with the second time I have visited the “tutorial”. If the user has visited the tutorial, the second time, I have a small transition between the states. The user see how change between the tutorial view and home view.

The code:

    angular.module('starter.controllers', [])

.controller('AppCtrl', function($scope, $state) {

  $scope.goToTutorialAgain = function()
  {
    window.localStorage['didTutorial'] = false;
    $state.go('app.welcome');
  };

})



.controller('HomeCtrl', function($scope) {
})

.controller('WelcomeCtrl', function($scope, $state, $location) {

  $scope.finishWelcome = function() {
    startApp();
  };

// Called to navigate to the main app
var startApp = function() {
  $state.go('app.home');
  // Set a flag that we finished the tutorial
  window.localStorage['didTutorial'] = true;
};

  // Check if the user already did the tutorial and skip it if so
  if(window.localStorage['didTutorial'] === "true") {
    startApp();
    return;
  }

});

Thanks!!