firewall_forwarded_tcp_ports does not forward connections from localhost

When accessing the forwarded port from the managed machine itself, connections are refused

    $ cat vars/main.yml
    firewall_allowed_tcp_ports:
      - "22"   # SSH
      - "80"   # Redirect (below)
      - "8080"

    firewall_forwarded_tcp_ports:
      - { src: "80", dest: "8080" }

After applying the above, port 80 can be accessed from other machines, but connections from localhost receive `Connection refused`.  (Note: port 8080 has a web server, and connections to 8080 are accepted.)