title: FormsAuthentication.SetAuthCookie problem
body: <p>In my MVC 3 application I have a very basic controller</p>
  
  <pre><code>[HttpPost]
  public ActionResult SignIn(LogonModel logonModel)
  {
      string logonMessage;
      if(_authenticationService.Login(logonModel.UserName, logonModel.Password, 
          out logonMessage))
      {
          FormsAuthentication.SetAuthCookie(logonModel.UserName,true);
  
          return RedirectToAction("Index", "Home");
      }
  
      return View();
  }
  </code></pre>
  
  <p>I see the cookie getting set in the browser however when I close the browser and come back to the site, it is not logging me in automatically. It is almost like the cookie is not being processed, which it should be.</p>