IIRC this is only possible for Perl running under modperl. perrin will correct me if that's wrong. :) I Googled around a bit on this theme but didn't find what I remember reading 5 years ago.
I doubt that is what you want though. For the general case, if it's really important to clear the file, I'd probably just add a method to your CGI which sends a follow-up "DELETE/POST" when you click "cancel" to remove the file that was just uploaded with the specified identifier/timestamp.
In reply to Re: Cancelling a cgi file transfer
by Your Mother
in thread Cancelling a cgi file transfer
by Rogue
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