I have trouble live chat with multiwebsite in odoo 12. 

I added system parameters web.base.url:http://ip because i have two websites and redirect the same ip, but the live chat doesn't display and not get error. 

I config Nginx with 

upstream odoo { server 127.0.0.1:8069; },

 upstream odoochat { server 127.0.0.1:8072; } 

and location /longpolling { proxy_pass http://odoochat; }, 

this configuration apply for two website. 

So in the module livechat when i create new group, i defined url regex with http://subdomain.domain.com with action auto popup but doesn't display anything.

Regards