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Re: [art] Artart telechat review of draft-ietf-httpbis-cache-header-09

"Martin J. Dürst" <duerst@it.aoyama.ac.jp> Wed, 18 August 2021 01:51 UTC

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To: Mark Nottingham <mnot@mnot.net>
Cc: art@ietf.org, HTTP Working Group <ietf-http-wg@w3.org>
References: <162858283141.12857.10508033655815270480@ietfa.amsl.com> <DCA2B147-0C8C-45DA-9F8D-7939A0926089@mnot.net> <bba84e3b-30bb-4b6a-03ac-2d2c66921c0e@it.aoyama.ac.jp> <CB24D355-DFF9-4863-84E4-624498FEE21D@mnot.net>
From: "Martin J. Dürst" <duerst@it.aoyama.ac.jp>
Organization: Aoyama Gakuin University
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Date: Wed, 18 Aug 2021 10:51:02 +0900
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Archived-At: <https://mailarchive.ietf.org/arch/msg/art/6g7HH1i792ksSPXrRvstgiYGcN4>
Subject: Re: [art] Artart telechat review of draft-ietf-httpbis-cache-header-09
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Hello Mark,

On 2021-08-18 10:39, Mark Nottingham wrote:
> Hi Martin,
> 
> I've addressed all of these in the latest commits on:
>    https://github.com/httpwg/http-extensions/commits/main/draft-ietf-httpbis-cache-header.md

Thanks, great!

> ... except for:
> 
>> Thanks! In terms of content, that's a great example (three layers, detailed explanations). But we suddenly have three header fields rather than just one. If I understand correctly, that example could also be written
>>
>> Cache-Status: ReverseProxyCache; hit,	
>>    ForwardProxyCache; fwd=uri-miss; collapsed; stored,	
>>    BrowserCache; fwd=uri-miss
>>
>> As far as I remember, there isn't any text that discusses trade-offs or recommends one or the other or says they are equivalent. But maybe I missed something?
> 
> That's because this is the case for all HTTP headers, not just this one. I'm extremely reluctant to re-specify or explain how HTTP works in any great detail in this specification.

Sorry, reading too many mail-related discussions lately.

Regards,   Martin.

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