Non-blocking request within a Mojolicious app

gistfile1.pl

get '/' => sub {
  my $self = shift;

  my $ua = Mojo::UserAgent->new;
  my $tx = $ua->build_tx(GET => 'http://tempi.re');
  
  $tx->on(finish => sub {
    my $tx = pop;
      
    warn $tx->error; # premature connection close
      
    $self->render(text => $tx->res->body);
  });
  
  $ua->start($tx);
};