How to inhibit Proxy-caching?
-
Problem description: A server based application creates a file with a constant filename (data.csv or something like that). The user has access to this file via a link like download your file here If the user creates the file the first time, he will get a download with the correct content. If the user now creates a new Version of this file, which contains new content, the download "fails" if a proxy server is involved in the transfer between web-server and client. The proxy delivers the old version out of his cache instead of the actual version from the server. Meta-Tags like or might work for a html-page, but how to tell a download file things like that? (My practical experiences show, that those meta tags do not really work for html-files either.) Is there any (proven) way to inhibit the caching process on a proxy-server?