From my perspective, it would be easier to just redirect STDERR to STDOUT (or perhaps to an in-memory scalar), since warnings bypass the normal $@ error capture in eval. There are instructions for redirecting STDERR in open. You could also modify the $SIG{__WARN__} handler (see %SIG in perlvar). Or, as long as you've tossed security to the wind, maybe you could achieve your goal with CGI::Carp qw(fatalsToBrowser);?
#11929 First ask yourself `How would I do this without a computer?' Then have the computer do it the same way.
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