Startup configuration with ASP.NET Core 2.0 when including authentication

Startup.cs

public void ConfigureServices(IServiceCollection services)
{
  services.AddDbContext<ApplicationDbContext>(options =>
    options.UseSqlServer(Configuration.GetConnectionString("DefaultConnection")));

  services.AddIdentity<ApplicationUser, IdentityRole>()
    .AddEntityFrameworkStores<ApplicationDbContext>()
    .AddDefaultTokenProviders();

  // Add application services.
  services.AddTransient<IEmailSender, EmailSender>();

  services.AddMvc();
}

// This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
public void Configure(IApplicationBuilder app, IHostingEnvironment env)
{
  if (env.IsDevelopment())
  {
    app.UseBrowserLink();
    app.UseDeveloperExceptionPage();
    app.UseDatabaseErrorPage();
  }
  else
  {
    app.UseExceptionHandler("/Home/Error");
  }

  app.UseStaticFiles();

  app.UseAuthentication();

  app.UseMvc(routes =>
  {
     routes.MapRoute(
       name: "default",
       template: "{controller=Home}/{action=Index}/{id?}");
  });
}