Merge branch 'wip-MDL-62584-34' of git://github.com/marinaglancy/moodle into MOODLE_34_STABLE

Author: David Monllao

webservice/xmlrpc/locallib.php

@@ -133,8 +133,9 @@ protected function send_response() {
      * @param Exception $ex
      */
     protected function send_error($ex = null) {
+        $this->response = $this->generate_error($ex);
         $this->send_headers();
-        echo $this->generate_error($ex);
+        echo $this->response;
     }
 
     /**