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Re: Multiple header fields with the same field name - unwritten assumption about quoted commas in values?

Willy Tarreau <w@1wt.eu> Tue, 15 January 2013 16:42 UTC

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Date: Tue, 15 Jan 2013 17:41:05 +0100
From: Willy Tarreau <w@1wt.eu>
To: Poul-Henning Kamp <phk@phk.freebsd.dk>
Cc: Julian Reschke <julian.reschke@gmx.de>, Piotr Dobrogost <p@ietf.dobrogost.net>, ietf-http-wg@w3.org
Message-ID: <20130115164105.GA7883@1wt.eu>
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Subject: Re: Multiple header fields with the same field name - unwritten assumption about quoted commas in values?
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On Tue, Jan 15, 2013 at 02:45:26PM +0000, Poul-Henning Kamp wrote:
> Content-Type: text/plain; charset=ISO-8859-1
> --------
> In message <50F549D8.2050501@gmx.de>, Julian Reschke writes:
> >On 2013-01-15 12:47, Piotr Dobrogost wrote:
> >> To summarize, from the point of view of http client library (see
> >> https://github.com/kennethreitz/requests/issues/741):
> >>
> >> - The safe approach is to not merge any header fields with the same field name.
> >
> >Yes.
> 
> I reached the same conclusion in Varnish, if you want headers
> merged, you must do so explicity in VCL.

FWIW, haproxy doesn't merge them either. However it considers commas as
delimiters for any headers.

Willy

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