Ken,

proxy_buffer_size and proxy_buffers are very similar.
These configure buffers allocated for a response from an upstream.
Both are documented here:
http://nginx.org/en/docs/http/ngx_http_proxy_module.html . Please, have
a look.

The difference is that proxy_buffer_size buffer is always allocated to
read the response header
And then nginx allocates memory for the response body using
'proxy_buffers' rules.

So, where to put 'proxy_buffer_size': put it right next to your
'proxy_pass' statement. This should work.

Regards,
Igor

On 15.08.2019 1:59, Ken Wright wrote:
> On 8/14/19 3:37 AM, Igor A. Ippolitov wrote:
>> Ken,
>>
>> Try setting 'proxy_buffer_size' to a higher value. Say 128k.
> Umm, what file would I find that in?  I've seen so many similar
> statements lately I can't keep them straight.  Sorry for being so dumb!
>
> Ken
>

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