tor 2008-06-05 klockan 00:19 +0800 skrev howard chen: > 1. Is it true Squid will only use the Last Modified and Cache Control > header for caching, Yes. > other headers are not important in my setup? Well.. don't send conflicting Expires or "Pragma: no-cache" headers.. > 2. I found that Squid will not consult the backend for updating the > Last Modified value and sometimes send out 304 directly. So is that if > my file has changed in my backend, I need to PURGE the Squid? Or wait until the freshness expires. Or issue an request with Cache-Control: max-age=0 to force the freshness to expire "now". When the object freshness has expired Squid will use Last-Modified to query the backend to see if there has been any changes. Regards Henrik
