I've prototyped adding support for gamepads :)
Details can be found here on how to test.
I'd be interested if it works for your Xbox controller.
Awesome thankyou. It works well on Xbox One Controller on my PC. By default the D-Pad is not active and it uses the left joystick instead. Easy to remap to D-Pad in game but you can only have one or the other, not both it seems.
The start and select buttons are also not mapped to any controller buttons by default, but again easy to map to controller buttons 8 and 9 as shown in your screenshot.
I'll also try it out on my Xbox One using Edge browser and get back to you with results.