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Re: trailers and pseudo-headers

"Poul-Henning Kamp" <phk@phk.freebsd.dk> Wed, 02 July 2014 09:58 UTC

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To: "Eric J. Bowman" <eric@bisonsystems.net>
cc: Julian Reschke <julian.reschke@gmx.de>, Mark Nottingham <mnot@mnot.net>, HTTP Working Group <ietf-http-wg@w3.org>
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From: Poul-Henning Kamp <phk@phk.freebsd.dk>
References: <53B3A631.80907@gmx.de> <0A3A3665-FEBD-467D-857A-6D1E61C83056@mnot.net> <53B3AD3A.8020307@gmx.de> <19984.1404286540@critter.freebsd.dk> <53B3B835.80807@gmx.de> <20154.1404288175@critter.freebsd.dk> <53B3BF49.9030207@gmx.de> <20291.1404289079@critter.freebsd.dk> <20140702034611.2dd18217cd132f02ab3bf24f@bisonsystems.net>
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Subject: Re: trailers and pseudo-headers
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In message <20140702034611.2dd18217cd132f02ab3bf24f@bisonsystems.net>, "Eric J. Bowman" writes:
>"Poul-Henning Kamp" wrote:
>>
>> >Hm? That would imply buffering all responses before displaying them?
>> 
>> Exactly...  :status must be final and definitive before the client
>> can decide how to present or process the body.
>
>I'm not sure how to interpret your position here PHK, but this would be
>a major step backwards for the Web.

My position is that :status can *never* go into trailers (which I think
should be unsupported btw.)

HTTP/1 has always worked this way:  The first thing the server tells
you is the status code, and there is no way it can change that
subsequently:  Once you've seen 200, 301, 404 or 502, you know what
use the object body can be to you and dispatch accordingly.

-- 
Poul-Henning Kamp       | UNIX since Zilog Zeus 3.20
phk@FreeBSD.ORG         | TCP/IP since RFC 956
FreeBSD committer       | BSD since 4.3-tahoe    
Never attribute to malice what can adequately be explained by incompetence.

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