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Re: querystring part of cache key

From: Adrian Chadd <adrian@creative.net.au>
Date: Sat, 23 May 2009 00:52:18 +0800
To: Jamie Lokier <jamie@shareable.org>
Cc: Adrian Chadd <adrian@creative.net.au>, David Morris <dwm@xpasc.com>, Adrien de Croy <adrien@qbik.com>, HTTP Working Group <ietf-http-wg@w3.org>
Message-ID: <20090522165218.GI21660@skywalker.creative.net.au>
On Fri, May 22, 2009, Jamie Lokier wrote:
> Adrian Chadd wrote:
> > .. Squid just caches based on the URL (with relevant rules controlling
> > whether the URL can be cached or not.)
> I think there was a time when you had to avoid '?' in a URL because
> caches wouldn't cache anything with it.

Heh. I think squid may still treat ?'s as uncachable for that reason.

In fact, plenty of origins are returning cachable info for non-normalised
query strings and this has an impact on the working size and churn of the

Received on Friday, 22 May 2009 16:52:54 UTC

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