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If it's a dynamic page, you can slap a new number after the program name (such as a process ID number), as in: www.mypage.com/cgi-bin/program.cgi/2476
When program.cgi loads, the "/2476" goes into PATH_INFO, but you can ignore it. All browser caches and network cache servers will be fooled into thinking that this is a request for a page they don't have (as long as the number is different), and will fetch it anew.