When I use the set_die_handler I get duplicate output (it is not STDERR output because I redirect that in the script): 

#!/usr/bin/perl -w
use strict;
use CGI::Carp qw|set_die_handler|;
use Foobar;

BEGIN {
   sub extra_special_die_handler {
     my ($msg) = shift;
     print qq|Content-Type: text/html\n\n|;
     print qq|<html><body>|;
     print qq|<h1>Error</h1>|;
     print qq|$msg</body></html>|;
     }

     set_die_handler(\&extra_special_die_handler); 
}

open( STDERR, '>>', 'testerror.log');

my $foo = Foobar->new();
print $foo->fooish();
print qq|\n\nall okay\n|;

close(STDERR);

[download]

Foobar.pm in a separate file:

package Foobar;

sub new {
   return bless {};    
    }
    
sub fooish {
     my ($self, $somevar) = @_;
     if ($somevar) {
          return "Empty nest!"; }
     else {
         die "I died here!";
     }
}

[download]

Produces,

Content-Type: text/html

<html><body><h1>Error</h1>I died here!</body></html>Content-Type: text
+/html

<html><body><h1>Error</h1>[Sat Jul 16 19:57:35 2016] testCGI_Carp.pl: 
+I died here! at Foobar.pm line 12.
</body></html>

[download]

Any ideas on how I can just get one or the other output?

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In reply to Duplicate CGI::Carp Output by InfiniteSilence

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