Hi

I am using nginx to proxy/cache requests from different origin servers, some of which I don't have access to (can't change their behaviour). Recently I stumbled upon a problem where nginx wouldn't serve partial objects (even after they are cached) although upstream server would happily do that. It happens because upstream server doesn't serve "Accept-Ranges: bytes" header.
RFC7233 states that use of this header is optional so nginx might be relying on it a bit too heavily.

Is there a configuration knob to make nginx ignore absence of this header (or force nginx to allow ranges)? Or a patch available to apply? If not - are there any plans to add one?

Thanks,
Kuba