Agent-check not working with backend HTTPS

[Claudio Ruggieri]

Hi all,
I have a problem with agent-check, in my haproxy installation.
Ubuntu Server 14.04 LTS with haproxy 1.5.3-1~ubuntu14.04.1

HAProxy is configured with 2 backends: one http e one https.
Agent-check is a script bash that simply return a percentage.

HTTP backend works fine. HTTPS backend doesn't work. In the web Statistic 
Report I see no weight is updated and I don't have errors in log.

This is the HTTPS backend configuration:

backend application-https
        description "HTTPS Application backend"
        cookie SRV insert indirect maxidle 24h maxlife 24h

        server rp1-test-https 192.168.170.181:443 maxconn 100 weight 100 fall 2 
rise 2 check inter 2s agent-check agent-port 4321 agent-inter 5s cookie 
rp1-test-https ssl verify none
        server rp2-test-https 192.168.170.182:443 maxconn 100 weight 100 fall 2 
rise 2 check inter 2s agent-check agent-port 4321 agent-inter 5s cookie 
rp2-test-https ssl verify none

Any idea?

Thanks
Bye