title: Ajax with custom Form Authentication in MVC3 project
body: <p>I have an MVC3 project with custom form authentication.
  I got the authentication to work fine (I used the "HttpContext.Current.User.Identity.IsAuthenticated" property in order to make sure it worked)</p>
  
  <p>I use on my of my forms an Ajax:</p>
  
  <pre><code>$(document).ready(function () {
      $.ajax({
          url: '/MyPages/MyControllerFunction',
          type: 'POST',
          success: function (result) { $('#MyJavaTemplate').tmpl(result).appendTo('#MyHtmlTable'); },
          error: function (result) {
              $('#errorDisplay').html(result.responseText);
          }
      })
  });
  </code></pre>
  
  <p>When I get to this page (and the ajax should call this controller's function) I get this error:</p>
  
  <p><strong>HTTP Error 404.0 - Not Found
  The resource you are looking for has been removed, had its name changed, or is temporarily unavailable.</strong></p>
  
  <p>My controller function:</p>
  
  <pre><code>[HttpPost]
      public ActionResult MyControllerFunction()
      {
          var MyEntity = MyBusinessLogic.GetByID(1);
          return Json(MyEntity);
      }
  </code></pre>
  
  <p>(I also tried to add the [Authorized] attribute and it didn't help)</p>
  
  <p>It only happens to me with mhen I call the controller's function through ajax. Before I changed my program to work with form authentication, It all worked. It's as if the user is not authenticated (even though it is)</p>
  
  <p>What should solve this problem?</p>