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Re: I-D Action: draft-ietf-httpbis-client-hints-03.txt

From: Poul-Henning Kamp <phk@phk.freebsd.dk>
Date: Tue, 13 Dec 2016 22:02:07 +0000
To: Mark Nottingham <mnot@mnot.net>
cc: Ilya Grigorik <ilya@igvita.com>, "Julian F. Reschke" <julian.reschke@gmx.de>, Ilya Grigorik <igrigorik@google.com>, HTTP Working Group <ietf-http-wg@w3.org>
Message-ID: <25529.1481666527@critter.freebsd.dk>
--------
In message <465252C7-D9DD-4E62-B4D7-40ACDB47812C@mnot.net>, Mark Nottingham wri
tes:

>> [1] https://github.com/httpwg/http-extensions/issues/168
>
>I think that's the context that was missing here. The intent AIUI is not 
>to allow more than one save-data token to appear at a time (in a list); 
>rather, it's to allow tokens to carry additional context as extensions.
>
>Given that, is there still a concern about compatibility with what 
>Common Structure might define?

I think not.

But I'm left wondering why it was done that way ?

	Save-Data: on;video-only

looks fine, until you try to extend it and end up with:

	Save-Data: on;video-and-big-pictures-unless-cute-kittens

I would have leveraged mime-types and our existing "grading" tool:

	Save-Data: video/*;q=1,audio/*;q=5

But I'm not a stakeholder in this, so that is just an observation.

-- 
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.
Received on Tuesday, 13 December 2016 22:02:47 UTC

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