I reguarly update documents on the web server, but the updates never seem to appear. Whats wrong?
It is important to understand how caching works on a web server, and in a web browser. Here is a hypothetical scenario that will explain the issue: iTools is operating under normal conditions and a commonly-accessed page is located in the Squid cache. A browser requests this page and it is transmitted by Squid without checking to see if the page has updated. This is where iTools’ speed comes from. Now, if a browser “Reload” request is given by the browser to Squid, Squid will check to see if the page has updated and it will serve the latest copy. If a “Super-reload” request is given to Squid it will serve the page from disk no matter what. Squid keeps commonly-accessed pages in its cache for three days. Once this time has expired, Squid automatically dumps the contents of its cache and commonly-accessed pages are stored in cache as they are accessed. Netscape has an option entitled “Page in cache is compared to page on Network”. The options for this feature are: “Once per seession”, “E
