As far as I know, this is not documented in Perldoc or in the CGI POD. In fact, I don't know how I found out about it. It's just something I picked up. You can see how it works by examing the CGI.pm source code, but bring along some aspirin :)

I even went out to Lincoln Stein's home page and I can't find a reference there in his official docs. Sorry :(

Cheers,
Ovid

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