Auth AJAX 401 response

app/filters.php

@@ -35,7 +35,15 @@ App::after(function($request, $response)
 
 Route::filter('auth', function()
 {
-	if (Auth::guest()) return Redirect::guest('login');
+	if (Auth::guest())
+	{
+		if (Request::ajax())
+		{
+			return Response::make('', 401, array('HTTP/1.1 401 Unauthorized'));
+		}
+
+		return Redirect::guest('login');
+	}
 });