http://www.perlmonks.org?node_id=1001267


in reply to SIGPIPE not trapped after sleep in CGI

Try to add following two lines after print "output #2\n";: 

sleep 5;
print "output #3\n";

[download]
and you will get your SIGPIPE.

Update:

<Reveal this spoiler or all in this thread>

In Section Seekers of Perl Wisdom