* Use suggested Antiforgery AJAX patern.

src/MusicStore/Controllers/ShoppingCartController.cs

@@ -1,10 +1,8 @@
 using System.Linq;
 using System.Threading;
 using System.Threading.Tasks;
-using Microsoft.AspNet.Antiforgery;
 using Microsoft.AspNet.Mvc;
 using Microsoft.Data.Entity;
-using Microsoft.Extensions.Primitives;
 using MusicStore.Models;
 using MusicStore.ViewModels;
 
@@ -59,28 +57,11 @@ namespace MusicStore.Controllers
         //
         // AJAX: /ShoppingCart/RemoveFromCart/5
         [HttpPost]
+        [ValidateAntiForgeryToken]
         public async Task<IActionResult> RemoveFromCart(
-            [FromServices] IAntiforgery antiforgery,
             int id,
             CancellationToken requestAborted)
         {
-            var cookieToken = string.Empty;
-            var formToken = string.Empty;
-            StringValues tokenHeaders;
-            string[] tokens = null;
-
-            if (HttpContext.Request.Headers.TryGetValue("RequestVerificationToken", out tokenHeaders))
-            {
-                tokens = tokenHeaders.First().Split(':');
-                if (tokens != null && tokens.Length == 2)
-                {
-                    cookieToken = tokens[0];
-                    formToken = tokens[1];
-                }
-            }
-
-            antiforgery.ValidateTokens(HttpContext, new AntiforgeryTokenSet(formToken, cookieToken));
-
             // Retrieve the current user's shopping cart
             var cart = ShoppingCart.GetCart(DbContext, HttpContext);
 

src/MusicStore/Startup.cs

@@ -1,5 +1,4 @@
 using Microsoft.AspNet.Builder;
-using Microsoft.AspNet.Hosting;
 using Microsoft.AspNet.Identity.EntityFramework;
 using Microsoft.Data.Entity;
 using Microsoft.Extensions.Configuration;

src/MusicStore/Views/ShoppingCart/Index.cshtml

@@ -6,10 +6,9 @@
 
 @functions
 {
-    public string GetAntiXsrfToken()
+    public string GetAntiXsrfRequestToken()
     {
-        var tokens = Xsrf.GetTokens(Context);
+        return Xsrf.GetAndStoreTokens(Context).RequestToken;
-        return tokens.CookieToken + ":" + tokens.RequestToken;
     }
 }
 
@@ -26,10 +25,12 @@
                     // Perform the ajax post
                     $.ajax(PostToUrl, {
                         type: "post",
-                        data: { "id": recordToDelete },
+                        data: {
+                            "id": recordToDelete
+                        },
                         dataType: "json",
                         headers: {
-                            "RequestVerificationToken": '@GetAntiXsrfToken()'
+                            "RequestVerificationToken": '@GetAntiXsrfRequestToken()'
                         }
                     }).done(function (data) {
                         // Successful requests get here

test/MusicStore.Test/ShoppingCartControllerTest.cs

@@ -188,7 +188,7 @@ namespace MusicStore.Controllers
             controller.ControllerContext.HttpContext = httpContext;
 
             // Act
-            var result = await controller.RemoveFromCart(antiForgery, cartItemId, CancellationToken.None);
+            var result = await controller.RemoveFromCart(cartItemId, CancellationToken.None);
 
             // Assert
             var jsonResult = Assert.IsType<JsonResult>(result);