APM: CGI::Application and -T

[Sam Foster]

I'm having trouble running a perl cgi in taint mode.
I have an implementation of CGI::Application that runs just fine, but 
dies as soon as I put it into taint mode (by adding -T to my shebang)

E.g #!C:/perl/bin/perl.exe -wT (I'm developing with activeperl 5.8, 
apache 1.3 on winXP... the production server will by a standard 
linux/apache combo)

Without fail, I get the Internal Server Error message in my browser. I 
also (this is windows XP Pro) get the microsoft error report prompt, 
telling me the Perl Command Line Interpreter has encountered a problem 
inviting me to send them the details of this problem.

I have
   use CGI::Carp qw(fatalsToBrowser);
.. in both my cgi, and the package that subclasses CGI::Application. I'm 
also attempting to trap errors generated by the CGI::App with

   $res = eval{ $webapp->run()};

I can add die "some message" at seemingly any point in my cgi wrapper, 
or the packages it uses and get the expected carp output in my browser.
I also run the thing in the cmd shell by setting a couple environment 
variables (DOCUMENT_ROOT, REQUEST_URI_ and calling
perl mycgi.cgi
.. and get the expected output back in the console.
But when I do
perl -T mycgi.cgi, again it dies, with no message to the console. Again, 
the same error prompt.

In all likelyhood there's tainted data in there, I'm using the 
REQUEST_URI and DOCUMENT_ROOT cgi environment variables for starters. 
But I can't begin to address the problem as it stands, as I'm not able 
to see the error.

Anyone?

thanks
Sam