Argo Tunnel - no cert downloaded by browser


I’ve installed Argo Tunnel and am part way through the setup, I’ve been following this page - On step 3 I’ve opted to login, I don’t have a browser running on the server as it’s command line only so I’ve copied the URL to my browser and selected the domain that I want the tunnel to work for.

The page says that my browser will automatically download the certificate - there are no downloads started by the browser and I can’t see the certificate in my cert store. Am I missing something?

Thanks, Steve.