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Re: #290: Motivate one-year limit for Expires

From: Mark Nottingham <mnot@mnot.net>
Date: Sun, 24 Jul 2011 14:16:40 -0400
Cc: HTTP Working Group <ietf-http-wg@w3.org>
Message-Id: <EF6FD50F-7BED-4D74-AB5A-60949DC06EB0@mnot.net>
To: Willy Tarreau <w@1wt.eu>

On 24/07/2011, at 2:15 PM, Willy Tarreau wrote:

> If my server emits an Expires header with a date in 2013 because of reboot
> with a wrong date, some caches might cache the content for a long time. Even
> if I fix the date when I notice it, some caches will still have the issue. I'm
> not saying this is something critical, I'm saying that I think that's one of
> the concerns you quoted when saying that longer TTLs are generaly caused by
> clock errors.


True, but the date skew *should* be detected if the age is correctly calculated.

Cheers,

--
Mark Nottingham   http://www.mnot.net/
Received on Sunday, 24 July 2011 18:17:08 GMT

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