private function isSkipCache(RequestInterface $request)
    {
        if (isset($this->skipCache['session_vars'])) {
            $skip = $this->skipCache['session_vars'];

            if (!empty($skip)) {
                if (!session_id()) {
                    session_cache_limiter(false);
                    session_start();
                }

                if (array_intersect_key($_SESSION, array_flip($skip))) {
                    return true;
                }
            }
        }

        return false;
    }