public function getHeaders()
    {
        switch ($this->request->ext) {
            case 'jpg':
            case 'jpeg':
                $this->response->headerController->headerField('Content-Type', 'image/jpeg');
                break;
            case 'png':
                $this->response->headerController->headerField('Content-Type', 'image/png');
                break;
            case 'gif':
                $this->response->headerController->headerField('Content-Type', 'image/gif');
                break;
        }
    }