Longpolling

Check following resources about activating longpolling:

• Official doc: https://www.odoo.com/documentation/8.0/setup/deploy.html#builtin-server
• Non-official doc: https://odoo-development.readthedocs.io/en/latest/admin/longpolling.html

In short, you need to start server with non-zero workers parameter::

openerp-server --workers=2 ...

and configure nginx:

location /longpolling {
    proxy_pass http://127.0.0.1:8072;
}
location / {
    proxy_pass http://127.0.0.1:8069;
}

Domain switching

There is a rare case, when you need to clear browser data after installation: if you use this module on a website domain, that was previously used by another database with this module installed. E.g. main_company.example.com was used by database1 and then the domain starts to handle another database2. In that case browser data has to be cleanned on all devices before first use.