Thanks for your assistance. I'm using 2.6.STABLE4, btw. I've been aware reload-into-ims violates HTTP (and love using it nonetheless), but I hadn't anticipated this behavior to be a side effect of reload-into-ims. I will follow your advice. however... > - upgrade to the latest squid release to get the latest fix for this > - bypass the reload-to-ims for these images > - purge the current items from your cache. if your first suggestion is a fix, why do I need to do the other two? (Is there some way I can continue to use reload-into-ims? I suppose I could always go the route of having Apache strip off no-cache headers.) Thanks again, Ed On Tue, Mar 25, 2008 at 5:28 PM, Amos Jeffries <squid3@xxxxxxxxxxxxx> wrote: > > Ed Eddington wrote: > > I'm having a problem where Squid is returning the cached Expires: > > header with a cached image. (These images are specified in CSS, so > > mouse roll-over is causing lots of re-requests for the images by the > > browser!) I have reload-into-ims turned on, so a browser reload turns > > into an If-Modified-Since request, which works as expected. The IMS > > response indicates 304 Not Modified and includes a new Expires: header > > in the future (and also includes a Last-Modified: header). However, > > Squid never updates the cached image with the newer Expires: date/time > > and always returns the one from the cached object (which is now months > > old). Any suggestions how I can get Squid to update the cached copy > > and return the newer Expires: date/time? Here's my refresh pattern: > > > > refresh_pattern . 60 0% 60 reload-into-ims > > > > Well, you fail to mention your version of squid. But this is an old > problem with workarounds. > > If you encounter problems with proxies configured to violate HTTP. > Expect to be told to unconfigure the violation. > > So: > - upgrade to the latest squid release to get the latest fix for this > - bypass the reload-to-ims for these images > - purge the current items from your cache. > > Amos > -- > Please use Squid 2.6STABLE17+ or 3.0STABLE1+ > There are serious security advisories out on all earlier releases. > >
