Cannot access keepalived virtual ip address from my browser

I am trying to achieve HA for 2 nginx load balancers. So i have 3 centos linux os docker containers - nginx and keepalived are running in 2 of the containers, while the third container is just a test container. Now i have successfully configured nginx and keepalived to achieve high availability and i am able to test my setup successfully using curl from the test container

curl http://172.19.0.200:80/api/v1/dev/home

The above curl command returns the expected outcome - 172.19.0.200 is the virtual ip set in the keepalived conf

#keepalived1
vrrp_script chk_nginx {
    script "/etc/keepalived/check_nginx.sh"
    interval 2
    weight 2
}

vrrp_instance VI_1 {
    state MASTER
    interface eth0
    virtual_router_id 70
    priority 100
    nopreempt
    advert_int 1
    authentication {
        auth_type PASS
        auth_pass password
    }
    virtual_ipaddress {
        172.19.0.200
    }
    track_script {
        chk_nginx
    }
}

#keepalived2
vrrp_script chk_nginx {
    script "/etc/keepalived/check_nginx.sh"
    interval 2
    weight 2
}

vrrp_instance VI_2 {
    state BACKUP
    interface eth0
    virtual_router_id 70
    priority 90
    nopreempt
    advert_int 1
    authentication {
        auth_type PASS
        auth_pass password
    }
    virtual_ipaddress {
        172.19.0.200
    }
    track_script {
        chk_nginx
    }
}

And the below conf is that of nginx.conf

error_log /var/log/nginx/error.log;

http {

    upstream all {
        server signup1:3000 max_fails=3 fail_timeout=10;
        server signup2:3220 max_fails=3 fail_timeout=10;
    }

    server {
         listen 172.19.0.200:80;
         location / {
              proxy_pass http://all;
              #health_check interval=10 fails=3 passes=2;
         }
    }

}

I assume that if i enter: http://172.19.0.200:80/api/v1/dev/home on a browser like chrome, i should see my desired output, but nothing happens. Instead it loads for sometime, stops, loads again, stops, and then simply displays: This site can’t be reached, 172.19.0.200 took too long to respond. So my question is: how do i access my upstream servers from chrome or any other browser using the virtual ip address.