Gets more validation bits wired up. Server side validation is now working which is based on val-server-field since we can use this natively with the asp.net ModelState result instead of the val-server which is actually to be used with PropertyType (Property Editors). Next up is validation for the different tabs of the editor.

src/Umbraco.Web/WebApi/PrefixlessBodyModelValidatorAttribute.cs

@@ -0,0 +1,20 @@
+using System;
+using System.Web.Http;
+using System.Web.Http.Controllers;
+using System.Web.Http.Validation;
+
+namespace Umbraco.Web.WebApi
+{
+    /// <summary>
+    /// Applying this attribute to any webapi controller will ensure that it only contains one json formatter compatible with the angular json vulnerability prevention.
+    /// </summary>
+    internal class PrefixlessBodyModelValidatorAttribute : Attribute, IControllerConfiguration
+    {
+        public virtual void Initialize(HttpControllerSettings controllerSettings, HttpControllerDescriptor controllerDescriptor)
+        {
+            //replace the normal validator with our custom one for this controller
+            controllerSettings.Services.Replace(typeof(IBodyModelValidator), 
+                new PrefixlessBodyModelValidator(controllerSettings.Services.GetBodyModelValidator()));            
+        }
+    }
+}