Hello!

On Wed, Aug 09, 2017 at 09:56:26PM +0530, Sharan J wrote:

> Thanks for the response.
>
> > ... [error] ... upstream sent no valid HTTP/1.0 header while reading
> response header from upstream ...
>
> This is logged in the error log for both HTTP/1.1 and HTTP/2. May I know
> why everything returned by the backend is considered as the response body
> in HTTP/2 alone? and not in HTTP/1.1?

It is considered to be the response body in both cases. Though in
case of HTTP/1.x nginx downgrades client's connection to HTTP/0.9
as well, and returns the HTTP/0.9 response as it was got from the
backend.

--
Maxim Dounin
http://nginx.org/
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