Why after customizing the sweet-alert box also, it will display default view in laravel 5?

I have customize the sweet-alert box as it is in github page. But it doesn't work I expected. Can anybody help me?

Here is the controller method which includes the alert.

 public function store(Requests\EventRequest $request){

            EventCal::create($request->all());
            $input=Request::all();
            $input['eventDate'] = $_POST['eventDate'];
            $input['title'] = $_POST['title'];
            Alert::success('Success Message', 'Optional','error',true,'ok');
            return view('evntform');
           // return $this->viewCal();
}

via Chebli Mohamed