login should work without specifying a protocol

[jacalata]

actual: Invalid URL 'blah.online.dev.tabint.net/api/2.4/serverInfo': No scheme supplied. Perhaps you meant http://blah.online.dev.tabint.net/api/2.4/serverInfo?

[septatrix]

I am not quite sure about this. If my tableau server instance was misconfigured I do not want it to silently fall back to HTTP.
It might be fine to assume HTTPS if no protocol is given but using HTTP should be made explicit

[jacalata]

Some of the design choices here are made because we have a lot of users with existing scripts written for this app, and we aim for all of these scripts to continue working as written when they switch from old tabcmd to this one. The old app assumes http if it is not specified, so we will match that behavior in our initial release, and hopefully deprecate it and remove in a version bump.