StreamingHTTPResponse and hardcoded threshold

[ougeee]

Hi, I was wondering if you had a special reason to hardcode a very low threshold for returning a StreamingHTTPResponse instead of HTTPResponse.

To my understanding, the Django docs generally discourage the use of StreamingHTTPResponse:
https://docs.djangoproject.com/en/2.0/ref/request-response/#streaminghttpresponse-objects

How about making this user configurable and add the option not to use StreamingHTTPResponse at all?
I'd put together a PR for that in case you support the idea.

[seocam]

The reason is that this might proxy very big files and in those cases we had a major memory issue due to that.

[seocam]

Anyway I support the idea of allowing the user to choose what's the best MIN_STREAMING_LENGTH and maybe None meaning streaming shouldn't be used.

[ougeee]

Alright then, I've already prepared a proposal. PR is coming soon after the polishing is done.