BEGIN{
$ENV{HTTPS_PROXY} = 'http://myproxyserver:port';
$ENV{HTTP_PROXY}  = 'http://myproxyserver:port';
}
use WWW::Mechanize::PhantomJS;
use Data::Dumper;
my $mech = WWW::Mechanize::PhantomJS->new();
$mech->get('http://google.com');
print Dumper $mech->content();