Inserting a Request header before proxying

[Almir Karic]

http://wiki.codemongers.com/NginxHttpProxyModule#proxy_set_header

On Sun, Oct 12, 2008 at 11:36:21PM -0700, work at anomalizer.net wrote:
> I'd like to insert a custom HTTP header (eg: X-foobar) into a request
> before doing a proxy_pass.
> 
> Is there any way to do this without changing the proxy module itself? I
> read that there can be only one handler per request. Though my module
> retruns NGX_DECLINED after doing its job, it doesn't seem to get executed
> first and proxy_pass seems to get invoked first.
> 
>