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Re: dont-revalidate Cache-Control header

Ben Maurer <ben.maurer@gmail.com> Tue, 14 July 2015 12:39 UTC

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Date: Tue, 14 Jul 2015 13:36:11 +0100
Message-ID: <CABgOVa+C48yYp-ZkawY+Ho6pXONa_UfB0MVt_2+d0ejyESu2Pw@mail.gmail.com>
From: Ben Maurer <ben.maurer@gmail.com>
To: Mark Nottingham <mnot@mnot.net>
Cc: Amos Jeffries <squid3@treenet.co.nz>, HTTP Working Group <ietf-http-wg@w3.org>
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Subject: Re: dont-revalidate Cache-Control header
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On Tue, Jul 14, 2015 at 1:01 PM, Mark Nottingham <mnot@mnot.net> wrote:

> From time to time, we've had people ask for "Cache-Control:
> Infinity-I-really-will-never-change-this." I suspect that often they don't
> understand how caches work, and that assigning a one-year lifetime is more
> than adequate for this purpose, but nevertheless, we could define that so
> that it worked and gave you the semantics you want too.
>
> To keep it backwards compatible, you'd need something like:
>
> Cache-Control: max-age=31536000, static
>
> (or whatever we call it)
>

Static is a fairly reasonable name. Static does imply that the resource
will *never* be revalidated (ever) vs the dont-reload which implies no
revalidations prior to expiration. I don't have any preferences between the
two but wanted to call that out.

What's the next step here?

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