diff --git a/libraries/OutputBuffering.class.php b/libraries/OutputBuffering.class.php
index 863486d45b..fcf14731c9 100644
--- a/libraries/OutputBuffering.class.php
+++ b/libraries/OutputBuffering.class.php
@@ -9,6 +9,8 @@ if (! defined('PHPMYADMIN')) {
     exit;
 }
 
+require_once './libraries/Util.class.php';
+
 /**
  * Output buffering wrapper class
  *
diff --git a/url.php b/url.php
index 82b224311b..09513f831d 100644
--- a/url.php
+++ b/url.php
@@ -15,6 +15,12 @@ require_once './libraries/common.inc.php';
  * JavaScript escaping.
  */
 require_once './libraries/js_escape.lib.php';
+require_once './libraries/Response.class.php';
+
+// Only output the http headers
+$response = PMA_Response::getInstance();
+$response->getHeader()->sendHttpHeaders();
+$response->disable();
 
 if (! PMA_isValid($_GET['url'])
     || ! preg_match('/^https?:\/\/[^\n\r]*$/', $_GET['url'])