Can we run figwheel w/ https?

@bhauman hmm, when I run (figwheel.repl/connect "") on the worker, I get output in the browser console showing a new session named "Rosie" is created, but (figwheel.repl/conns) still shows only the first, original session present.

Haven't looked into the code yet but I just wanted to check in to see if there's anything obvious that comes to mind, if there's any other setup stuff I have to do.