Global FIlter in MVC 5 is not working

Hello. I'm following the tutorial below with the intention of better understanding the .net Identity authentication process with OWIN.

link

When accessing Home, it should redirect to the auth / login and this is not happening. It's as if you're ignoring AuthorizeAttribute ().

Follow my codes.

Startup.cs

using System;
using System.Threading.Tasks;
using Microsoft.Owin;
using Owin;
using Microsoft.Owin.Security.Cookies;

[assembly: OwinStartup(typeof(DotNetIdentidade.Startup))]

namespace DotNetIdentidade
    {
        public class Startup
    {
        public void Configuration(IAppBuilder app)
        {
            app.UseCookieAuthentication(new CookieAuthenticationOptions
            {
                AuthenticationType = "ApplicationCookie",
                LoginPath = new PathString("/auth/login")
            });
        }
    }
}

FilterConfig.cs

using System.Web.Mvc;
namespace DotNetIdentidade
{
    public class FilterConfig
    {
        public static void RegisterGlobalFilters(GlobalFilterCollection filters)
        {
            filters.Add(new HandleErrorAttribute());
            filters.Add(new AuthorizeAttribute());
        }
    }
}

Global.asax.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Mvc;
using System.Web.Routing;

namespace DotNetIdentidade
{
    public class MvcApplication : System.Web.HttpApplication
    {
        protected void Application_Start()
        {
            AreaRegistration.RegisterAllAreas();
            RouteConfig.RegisterRoutes(RouteTable.Routes);
            FilterConfig.RegisterGlobalFilters(GlobalFilters.Filters);  
        }
    }
}

Thank you.