public function getDestinationWebPath()
    {
        if (!empty($this->web_root_path)) {
            return str_replace($this->web_root_path, '', $this->getDestinationRealPath());
        } elseif (false===$this->silent) {
            throw new \LogicException(
                '[Compressor] Can\'t create web path because "web_root_path" is not defined!'
            );
        }
        return null;
    }