| protected | boolean | cache | whether caching the response should be attempted |
| protected | boolean | gzip | whether the sent entity should be gzip'ed on the fly |
| protected | string | eTag | the generated or custom ETag |
| protected | integer | lastModified | the generated or custom timestamp of last modification |
| protected | string | cacheControl | Cache-Control setting |
| protected | string | contentType | the Content-Type of the sent entity |
| protected | string | contentDisposition | the Content-Disposition of the sent entity |
| protected | integer | bufferSize | the chunk buffer size used for throttling |
| protected | double | throttleDelay | the seconds to delay when throttling |