diff --git a/site/app_controller.php b/site/app_controller.php
index 50b242a..4481d0f 100644
--- a/site/app_controller.php
+++ b/site/app_controller.php
@@ -511,6 +511,7 @@ class AppController extends Controller {
       $xml = preg_replace("/</", "&lt;", $xml);
       $xml = preg_replace("/>/", "&gt;", $xml);
       echo ("\n<PRE>\n$xml\n</PRE>\n");
+      $this->render_empty();
     }
   }
 
@@ -1019,9 +1020,8 @@ class AppController extends Controller {
   }
 
   function gridDataOutputHeader(&$params, &$model) {
-    if (!$params['debug']) {
+    if (!$params['debug'])
       header("Content-type: text/xml;charset=utf-8");
-    }
   }
 
   function gridDataOutputXMLHeader(&$params, &$model) {