Plack stack trace

use strict;
use warnings;
use Plack::Request;

sub {
    my $env = shift;
#    eval { die 'aaaaaaaaaaaaaaaaaaaa'; };
    return [
        '500',
        [ 'Content-Type' => 'text/plain' ],
        [ "Error" ],
    ];
}

# uncommenting the eval line should be a noop in my understanding
# but it triggers a stack strace