use strict;
use warnings;
use 5.010;

use IO::Socket qw{ :DEFAULT :crlf };

my $host = 'localhost';
my $path = '/cgi-bin/second.pl';
my $port = 80;

=pod
my $CONN = IO::Socket::INET->new("$host:$port")
    or die "Couldn't connect: $!";
=cut

my $CONN = IO::Socket::INET->new(
    Peerhost    => $host,
    Peerport    => 'http(80)',
) or die "Couldn't connect: $!";

my $req = "GET $path HTTP/1.0 $CRLF$CRLF";
$CONN->syswrite($req);

$/ = CRLF . CRLF; #To read whole header as one 'line'
binmode $CONN; #turn off \n conversion for getline() below

my $header = $CONN->getline;
$header =~ s/$CRLF/\n/g;
say $header;

$CONN->close;