Hello!

On Wed, Jan 05, 2011 at 10:42:09PM +0800, 杨镭 wrote:

> Hi all,
>
> Although the documentation (
> http://wiki.nginx.org/HttpProxyModule#proxy_set_header) says the context of
> proxy_set_header can be http, server, location，we found that
> proxy_set_header directive at http level does not work. When moved to server
> level, everything works fine.
>
> Setting proxy_set_header at http level allows us to centralize some common
> settings thus avoid manually copy those directives to each virtual host when
> it was created. e.g., we use X-Http-Scheme header to let backend server know
> if it's a https request, otherwise they can't know.

It works at http level just fine. Most likely you've defined
proxy_set_header at server level as well, and this cleared
values set on http level. Note the following in wiki:

% proxy_set_header directives issued at higher levels are only
% inherited when no proxy_set_header directives have been issued at
% a given level

Maxim Dounin

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