nginx IETF RFC21266 Compliance - 'Proxy-Connection'

Steve Wilson lists-nginx at
Wed Sep 16 13:05:21 UTC 2015

At risk of repeating previous advice, see below ...

-------- Original Message --------
Subject: Re: nginx RFC21266 Compliance - 'Proxy-Connection'
Date: 25/08/2015 21:21
 From: Steve Wilson <lists-nginx at>
To: nginx at
Reply-To: nginx at

Looking at it
suggests it's a non-standard request header.

You can probably strip this out of the request to the real server with

proxy_set_header "Proxy-Connection" "";

Although I'd expect the backend server to ignore invalid request headers
rather than bork on the request.


On 15/09/2015 02:22, Tyarko Leander Rodney wrote:
> Hi,
> I’ve posted this question on the IRC before but had no luck. I have
> the following problem:
> I’d like to disable the ‘Proxy-Connection’ Response Header. I know,
> that the “Connection” Header is hard coded in
> ngx_http_header_filter_module.c, but does the same apply to
> “Proxy-Connection” (couldn’t find it in the sources)?
> I’ve tried the more_clear_headers from the ngx_headers_more module and
>  proxy_set_header(which both work fine with all other headers).
> Background: The ‘Proxy-Connection’ sadly violates our Server Policy
> (strict RFC21266 compliance).
> Kind regards
> T. Rodney
> _______________________________________________
> nginx mailing list
> nginx at

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