Re: [squid-users] Caching query strings

Po Ki Chui wrote:
> Hi all,
>
> I just installed Squid 3.0 on Redhat Linux. I am not able to cache any
> URLs with a query string, unless the browser cache is clear. I've gone
> thru the forum posts, but still no luck.
>
>
> ============================================================
> My squid.conf has the following:
>
> cache allow all
> refresh_pattern \? 0 20% 30
> refresh_pattern . 0 20% 4320
>
> There's no default "QUERY" cache deny to be commented out, and all I
> have is cache allow all.
>
> ============================================================
> The requested page returns an Expires header that doesn't expire:
>
> HTTP/1.x 200 OK
> Server: Apache-Coyote/1.1
> Expires: Wed, 14 May 2008 00:00:00 GMT
> Content-Type: text/html;charset=UTF-8
> Date: Mon, 12 May 2008 21:18:35 GMT
> X-Cache: MISS from xxx.xxx.com
> Via: 1.0 xxx.xxx.com (squid/3.0.STABLE5)
> Connection: close
> ============================================================
>
>
> Please advise.

We are currently recommending the config, which keeps to the standards
by not caching dynamic data when expiry info is absent, but caching as
long as possible when it is:

   # part 1: remove the old QUERY acl and cache deny QUERY.

   # making these the last two refresh_patterns.
   refresh_pattern (/cgi-bin/|\?) 0 0% 0
   refresh_pattern . 0 20% 4320

If that is still not working for a particular site, check whether the
site itself is permitting caching and why not.
   http://www.ircache.net/cgi-bin/cacheability.py

Amos

-- 
Please use Squid 2.6.STABLE20 or 3.0.STABLE5