Force range request on proxy server

We used amazon S3 as upstream server. And it does not serve
bytes’ as respond header. So the nginx proxy server will not serve range
response even if the content has been completely cached on the proxy
We tested on a upstream server that do serve ‘Accept-Ranges: bytes’ as
respond header. And proxy server was working proper by servering range
Is that the default behavior for nginx proxy. Is there a way to

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