[squid-users] Always TCP_REFRESH_MISS with www.heise.de

Hi,
setup is a default squid as transparent proxy on OpenBSD. It
works for most hosts, but for www.heise.de it nearly always does
a TCP_REFRESH_MISS/200 like this:

1140821829.506 233 192.168.17.2 TCP_REFRESH_MISS/200 466 GET http://www.heise.de/tp/r4/icons/frame/eol.gif - DIRECT/193.99.144.85 image/gif

Last-Modified: Tue, 09 Nov 2004 10:37:18 GMT
Mozilla shows expiry as 13.04.2006 06:50:54

Any idea why this is not cached?

Thanks in advance
    Martin

-- 
                    http://www.tm.oneiros.de