BrowserSync allows for local SSL certificates and communications through HTTPS, but it requires a bit of set up. This is important because WP Rig is optimized for the HTTP/2 protocol, and HTTP/2 requires SSL.
So if you want to test these advanced features in a proper encrypted environment, you need BrowserSync to use SSL. For this reason, WP Rig can generate SSL certificates for you automatically. In this video, we will show you how to get this to work.