@Steve3 do you mean using Hotspot Shield via the extension app or the desktop app?
It should work if you’re utilizing the desktop app but if you’re on a Linux distro, I’d understand why you ask for the extension app functionality juxtaposed with WebTorrent/
If it’s in the case of the extension app, I mentioned the same things here quite a while ago cc’ing the provider but neither of them have replied back with an answer - Discussion with Proxy / VPN providers that offer SPDY-HTTPS/2 Solutions
Perhaps you can press the ‘Invite’ button yourself and enter the support link of the provider.