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Re: 203 Non-Authoritative Information: deprecate?

From: Roy T. Fielding <fielding@gbiv.com>
Date: Mon, 30 May 2011 08:28:00 -1000
Cc: httpbis Group <ietf-http-wg@w3.org>
Message-Id: <0BD69408-3F8D-4FD4-8082-067186186AEC@gbiv.com>
To: Mark Nottingham <mnot@mnot.net>
On May 29, 2011, at 6:27 PM, Mark Nottingham wrote:

> Hmm. I see that we have warn code 214, "Transformation applied," which makes me wonder about the relationship (whether or not we go with the proposal below).

The 203 status was defined in 1993 (IIRC) and later implemented in proxies like
Commentor (IIRC).  I don't know if anything depends on it today, but it is
known and usable by Apache httpd.

Warnings were added in 1996 and, AFAIK, only implemented for the purpose of
server-side RFC compliance.  Apache httpd's mod_filter adds it while filtering
content as a proxy (it does not set 203 because it can filter error content,
though I could change that if some other checks in the code are fixed).

I do not know of any clients that check for either one, since there isn't
much they can do about it.

Received on Monday, 30 May 2011 18:28:20 UTC

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