How to set up stats for HAProxy?

I can't figure out how to set up stats for HAProxy.

This is my configuration:

global
    log 127.0.0.1 local0
    log 127.0.0.1 local1 notice
    daemon
    #debug
    user haproxy
    group haproxy
    maxconn 4096

    stats socket /tmp/haproxy

defaults
    log global
    mode tcp
    option tcplog
    option dontlognull
    option redispatch
    option clitcpka
    option srvtcpka
    option tcpka
    retries 3
    maxconn 2000
    contimeout 10000
    clitimeout 50000
    srvtimeout 50000

    stats enable
    stats hide-version
    stats scope .
    stats realm Haproxy\ Statistics
    stats uri /haproxy?stats
    stats auth xxxxx:xxxxx

    option contstats

listen rtmp :1935
    mode tcp
    balance roundrobin

    server s1 xxx.xxx.xxx.xxx:1935 check
    server s2 xxx.xxx.xxx.xxx:1935 check

As far as I understand the manual there should be a stats page available via http://mysite/haproxy?stats. What am I missing?

EDIT: I can access the stats with socat but not with a web browser.

That is not correct. There would be a stats page on http://yoursite.com:1935/haproxy?stats

To overcome this add another listener-

listen stats :1936
    mode http
    stats enable
    stats hide-version
    stats realm Haproxy\ Statistics
    stats uri /
    stats auth Username:Password

Then go to http://yoursite.com:1936/ and login.

Make sure your firewall isn't blocking this request.

This did it for me:

listen stats
    bind :9000

or

listen stats
    bind 10.100.86.150:9000

In new versions of haproxy (>1.6) you have to set the mode to http instead of tcp (default) to config : 'stats' statement ignored for frontend 'http-in' as it requires HTTP mode.