Pimcore\Controller\Plugin\HttpErrorLog::dispatchLoopShutdown PHP Method

    public function dispatchLoopShutdown()
    {
        $code = (string) $this->getResponse()->getHttpResponseCode();
        if ($code && ($code[0] == "4" || $code[0] == "5")) {
            $this->writeLog();
            // put the response into the cache, this is read in Pimcore\Controller\Action\Frontend::checkForErrors()
            $responseData = $this->getResponse()->getBody();
            if (strlen($responseData) > 20 && !session_id()) {
                // do not cache if there's no data or an active session
                if ($this->cacheKey) {
                    \Pimcore\Cache::save($responseData, $this->cacheKey, ["output"], 900, 9992);
                }
            }
        }
    }