- Patch #39566 by chx: fixed incorrect encoding in URLs.

includes/common.inc

@@ -696,9 +696,7 @@ function check_file($filename) {
  *
  */
 function check_url($uri) {
-  $uri = filter_xss_bad_protocol($uri, FALSE);
-
-  return $uri;
+  return filter_xss_bad_protocol($uri, FALSE);
 }
 
 /**