title: In ASP.NET MVC4, how to redirect to {controller}/{id}?
body: <p>I have the following route configuration in a ASP.NET MVC4 project:</p>
  
  <pre><code>routes.MapRoute(
    name:        "HttpError",
    url:         "{controller}/{id}",
    defaults:    new { controller = "Error", action = "Index" },
    constraints: new { id = @"\d+" }
  );
  </code></pre>
  
  <p>Now, I would like to know how can I create a <code>RedirectResult</code> or <code>RedirectToRouteResult</code> that generate an URL that point to <code>/Error/403</code> instead of <code>/Error/Index/403</code>.</p>
  
  <p><strong>Extra information</strong></p>
  
  <p>I'm trying to redirect <em>unauthorized</em> users from a custom implementation of <code>System.Web.Mvc.AuthorizeAttribute</code> inside of its overridden method: <code>HandleUnauthorizedRequest(AuthorizationContext)</code>.</p>