core (fix) change OnWebPagePrerender event

Author: Ser1ous

core/src/Core.php

@@ -840,11 +840,8 @@ public function outputContent($noEvent = false)
         if (!$noEvent) {
             $evtOut = $this->invokeEvent(
                 'OnWebPagePrerender'
-                , array('documentOutput' => $this->documentOutput)
+                , array('documentOutput' => &$this->documentOutput)
             );
-            if (is_array($evtOut) && count($evtOut) > 0 && !empty($evtOut['0'])) {
-                $this->documentOutput = $evtOut['0'];
-            }
         }
 
         $this->documentOutput = removeSanitizeSeed($this->documentOutput);