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From Luca Toscano <toscano.l...@gmail.com>
Subject Re: [users@httpd] HTTP 401: Apache strips out response headers
Date Thu, 12 Jan 2017 00:11:10 GMT
Hi Marco,

2017-01-10 12:57 GMT-08:00 Marco Pizzoli <marco.pizzoli@gmail.com>:

> Hi all,
> I am reverse proxying a backend which returns a http code 401.
> I see Apache is stripping out all the http headers returned by the backend
> along with the 401 and this is causing trouble to the client application.
>
> Is there a way to get the original http headers to the client?
>
> I can't find any documentation about this. Not even a reference to the
> fact Apache is re-writing the answer, but I checked myself and now I am
> sure of this behaviour....
>
> Apache currently used for this setup is 2.2. Migration to 2.4 is planned
> in the coming motnhs.
>
>
I tried to reproduce the issue with 2.4.25 (mod_proxy_http connecting to a
python webserver returning a 401 with custom headers) and I got the
expected response without any header stripping. I'll try asap on 2.2 but in
the meantime, can you tell us if you managed to reproduce the problem on a
2.4.x version of httpd? Moreover, if you have a simple script or way to
reproduce your backend (returning 401) please share it with us so we'll be
able to track down the issue quickly.

Thanks!

Luca

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