/** * Clear cache of current page on error and sends correct header. * * @return void */ protected function clearCacheOnError() { parent::clearCacheOnError(); $this->response->setHeader('Cache-Control', 'private', TRUE); $this->response->setHeader('Expires', '0', TRUE); $this->response->setHeader('Pragma', 'no-cache', TRUE); $this->response->sendHeaders(); }