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Re: Transfer-codings, mandatory content-coding support and intermediaries

From: Mark Nottingham <mnot@mnot.net>
Date: Mon, 21 Apr 2014 09:57:49 +1000
Cc: Patrick McManus <pmcmanus@mozilla.com>, Daniel Stenberg <daniel@haxx.se>, HTTP Working Group <ietf-http-wg@w3.org>
Message-Id: <04987298-46A6-425F-AFD6-0472F21F9F7E@mnot.net>
To: "Julian F. Reschke" <julian.reschke@gmx.de>

On 20 Apr 2014, at 7:02 pm, Julian Reschke <julian.reschke@gmx.de> wrote:

> On 2014-04-20 02:00, Mark Nottingham wrote:
>> ...
>>> Sure, that makes http/2 gateways have to work a little harder with lame http/1 clients. that's a reasonable price.
>> 
>> No, that's not the problem. The problem is that the gateways have to become non-transparent, making it more difficult for clients to interoperate *through* them.
>> ...
> 
> Such as rewriting ETags, right?
> 
> This is a hard problem. Apache httpd's compression module doesn't get it right. Are we aware of *any* piece of middleware that does get it right?
> 
> Note that this also requires rewriting request header (conditionals), and would always be limited to what the middleware knows about (so ETags in payloads and new conditional header fields will be broken…).

… which is one of the reasons I think we need to seriously consider dropping this text.

Regards,

--
Mark Nottingham   http://www.mnot.net/
Received on Sunday, 20 April 2014 23:58:31 UTC

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