Cannot run FSM from local machine

Downloaded the FSM Designer today from the repository and tried to run it from the local box. The FSM Designer comes up and the canvas displays but nothing else happens. Double-clicking does not add a state, etc. Tried it with IE, Edge, Chrome, FireFox.

Start by reproducing the issue in the FSM Designer canvas using one of the listed browsers, then inspect the browser console and the app's entry point to find why canvas interactions do not respond. Done means double-clicking adds a state and the designer behaves as expected in the affected browsers.

Written by the indexing model from the issue text.