Floorplan not working

[Aephir]

When trying to load my floorplan panel, I just get a black page with an error:

Script error: See browser console for detail

Not really sure how to help provide more info (is there a browser console in the app that I can access?), but my floorplan config is in my github repo, if that helps

custom_ui/floorplan
floorplan.yaml

All other features of the app I have tested work fine, and the floorplan works fine if accessed through a browser.