Your browser does not seem to support JavaScript. As a result, your viewing experience will be diminished, and you have been placed in read-only mode.
Please download a browser that supports JavaScript, or enable it if it's disabled (i.e. NoScript).
You need to be inside of the MagicMirror folder for that to work.
Interesting. Could you give https://github.com/electron/electron-quick-start a try to see if that one works?