Using Xbox Gamepad over Firefox run into issue

[Scottvishnu]

I am try to use Firefox 84.0.2.
I run into issue if i select my Game-pad in
the list. Then the Control is completely lost, i can switch
to Keyboard but after pressing WASD or something he doesn't register anymore.
On Chromium it's working completely fine.
Firefox Console:
Connected main.js:206:13 Gamepad connected with ID: 045e-02ea-Microsoft X-Box One S pad 2 main.js:290:13 Uncaught TypeError: gp.buttons[11] is undefined updateGamepadInput http://127.0.0.1:8000/js/main.js:493 eventLoop http://127.0.0.1:8000/js/main.js:591 eventLoop http://127.0.0.1:8000/js/main.js:618 eventLoop http://127.0.0.1:8000/js/main.js:618 eventLoop http://127.0.0.1:8000/js/main.js:618 eventLoop http://127.0.0.1:8000/js/main.js:618 eventLoop http://127.0.0.1:8000/js/main.js:618 eventLoop http://127.0.0.1:8000/js/main.js:618 eventLoop http://127.0.0.1:8000/js/main.js:618 eventLoop http://127.0.0.1:8000/js/main.js:618 eventLoop http://127.0.0.1:8000/js/main.js:618 eventLoop http://127.0.0.1:8000/js/main.js:618 eventLoop http://127.0.0.1:8000/js/main.js:618 eventLoop http://127.0.0.1:8000/js/main.js:618 eventLoop http://127.0.0.1:8000/js/main.js:618 eventLoop http://127.0.0.1:8000/js/main.js:618 eventLoop http://127.0.0.1:8000/js/main.js:618 eventLoop http://127.0.0.1:8000/js/main.js:618 eventLoop http://127.0.0.1:8000/js/main.js:618 eventLoop http://127.0.0.1:8000/js/main.js:618 eventLoop http://127.0.0.1:8000/js/main.js:618 eventLoop http://127.0.0.1:8000/js/main.js:618 eventLoop http://127.0.0.1:8000/js/main.js:618 eventLoop http://127.0.0.1:8000/js/main.js:618 eventLoop http://127.0.0.1:8000/js/main.js:618 eventLoop http://127.0.0.1:8000/js/main.js:618 eventLoop http://127.0.0.1:8000/js/main.js:618 eventLoop http://127.0.0.1:8000/js/main.js:618 eventLoop http://127.0.0.1:8000/js/main.js:618 eventLoop http://127.0.0.1:8000/js/main.js:618 eventLoop http://127.0.0.1:8000/js/main.js:618 eventLoop http://127.0.0.1:8000/js/main.js:618 eventLoop http://127.0.0.1:8000/js/main.js:618 eventLoop http://127.0.0.1:8000/js/main.js:618 eventLoop http://127.0.0.1:8000/js/main.js:618 eventLoop http://127.0.0.1:8000/js/main.js:618 eventLoop http://127.0.0.1:8000/js/main.js:618 eventLoop http://127.0.0.1:8000/js/main.js:618 eventLoop http://127.0.0.1:8000/js/main.js:618 eventLoop http://127.0.0.1:8000/js/main.js:618 eventLoop http://127.0.0.1:8000/js/main.js:618 eventLoop http://127.0.0.1:8000/js/main.js:618 eventLoop http://127.0.0.1:8000/js/main.js:618 eventLoop http://127.0.0.1:8000/js/main.js:618 main.js:493:5 Uncaught TypeError: gp.buttons[11] is undefined updateGamepadInput http://127.0.0.1:8000/js/main.js:493 eventLoop http://127.0.0.1:8000/js/main.js:591 eventLoop http://127.0.0.1:8000/js/main.js:618 eventLoop http://127.0.0.1:8000/js/main.js:618 eventLoop http://127.0.0.1:8000/js/main.js:618 eventLoop http://127.0.0.1:8000/js/main.js:618 eventLoop http://127.0.0.1:8000/js/main.js:618 eventLoop http://127.0.0.1:8000/js/main.js:618 eventLoop http://127.0.0.1:8000/js/main.js:618 eventLoop http://127.0.0.1:8000/js/main.js:618 eventLoop http://127.0.0.1:8000/js/main.js:618 eventLoop http://127.0.0.1:8000/js/main.js:618 eventLoop http://127.0.0.1:8000/js/main.js:618 eventLoop http://127.0.0.1:8000/js/main.js:618 eventLoop http://127.0.0.1:8000/js/main.js:618 eventLoop http://127.0.0.1:8000/js/main.js:618 eventLoop http://127.0.0.1:8000/js/main.js:618 eventLoop http://127.0.0.1:8000/js/main.js:618 eventLoop http://127.0.0.1:8000/js/main.js:618 eventLoop http://127.0.0.1:8000/js/main.js:618 eventLoop http://127.0.0.1:8000/js/main.js:618 eventLoop http://127.0.0.1:8000/js/main.js:618 eventLoop http://127.0.0.1:8000/js/main.js:618 eventLoop http://127.0.0.1:8000/js/main.js:618 eventLoop http://127.0.0.1:8000/js/main.js:618 eventLoop http://127.0.0.1:8000/js/main.js:618 eventLoop http://127.0.0.1:8000/js/main.js:618 eventLoop http://127.0.0.1:8000/js/main.js:618 eventLoop http://127.0.0.1:8000/js/main.js:618 eventLoop http://127.0.0.1:8000/js/main.js:618 eventLoop http://127.0.0.1:8000/js/main.js:618 eventLoop http://127.0.0.1:8000/js/main.js:618 eventLoop http://127.0.0.1:8000/js/main.js:618 eventLoop http://127.0.0.1:8000/js/main.js:618 eventLoop http://127.0.0.1:8000/js/main.js:618 eventLoop http://127.0.0.1:8000/js/main.js:618 eventLoop http://127.0.0.1:8000/js/main.js:618 eventLoop http://127.0.0.1:8000/js/main.js:618 eventLoop http://127.0.0.1:8000/js/main.js:618 eventLoop http://127.0.0.1:8000/js/main.js:618 eventLoop http://127.0.0.1:8000/js/main.js:618 eventLoop http://127.0.0.1:8000/js/main.js:618 eventLoop http://127.0.0.1:8000/js/main.js:618 eventLoop http://127.0.0.1:8000/js/main.js:618 main.js:493:5 updateGamepadInput http://127.0.0.1:8000/js/main.js:493 eventLoop http://127.0.0.1:8000/js/main.js:591 (Async: FrameRequestCallback) eventLoop http://127.0.0.1:8000/js/main.js:618 (Async: FrameRequestCallback) eventLoop http://127.0.0.1:8000/js/main.js:618 (Async: FrameRequestCallback) eventLoop http://127.0.0.1:8000/js/main.js:618 (Async: FrameRequestCallback) eventLoop http://127.0.0.1:8000/js/main.js:618 (Async: FrameRequestCallback) eventLoop http://127.0.0.1:8000/js/main.js:618 (Async: FrameRequestCallback) eventLoop http://127.0.0.1:8000/js/main.js:618 (Async: FrameRequestCallback) eventLoop http://127.0.0.1:8000/js/main.js:618 (Async: FrameRequestCallback) eventLoop http://127.0.0.1:8000/js/main.js:618 (Async: FrameRequestCallback) eventLoop http://127.0.0.1:8000/js/main.js:618 (Async: FrameRequestCallback) eventLoop http://127.0.0.1:8000/js/main.js:618 (Async: FrameRequestCallback) eventLoop http://127.0.0.1:8000/js/main.js:618 (Async: FrameRequestCallback) eventLoop http://127.0.0.1:8000/js/main.js:618 (Async: FrameRequestCallback) eventLoop http://127.0.0.1:8000/js/main.js:618 (Async: FrameRequestCallback) eventLoop http://127.0.0.1:8000/js/main.js:618 (Async: FrameRequestCallback) eventLoop http://127.0.0.1:8000/js/main.js:618 (Async: FrameRequestCallback) eventLoop http://127.0.0.1:8000/js/main.js:618 (Async: FrameRequestCallback) eventLoop http://127.0.0.1:8000/js/main.js:618 (Async: FrameRequestCallback) eventLoop http://127.0.0.1:8000/js/main.js:618 (Async: FrameRequestCallback) eventLoop http://127.0.0.1:8000/js/main.js:618 (Async: FrameRequestCallback) eventLoop http://127.0.0.1:8000/js/main.js:618 (Async: FrameRequestCallback) eventLoop http://127.0.0.1:8000/js/main.js:618 (Async: FrameRequestCallback) eventLoop http://127.0.0.1:8000/js/main.js:618 (Async: FrameRequestCallback) eventLoop http://127.0.0.1:8000/js/main.js:618 (Async: FrameRequestCallback) eventLoop http://127.0.0.1:8000/js/main.js:618 (Async: FrameRequestCallback) eventLoop http://127.0.0.1:8000/js/main.js:618 (Async: FrameRequestCallback) eventLoop http://127.0.0.1:8000/js/main.js:618 (Async: FrameRequestCallback) eventLoop http://127.0.0.1:8000/js/main.js:618 (Async: FrameRequestCallback) eventLoop http://127.0.0.1:8000/js/main.js:618 (Async: FrameRequestCallback) eventLoop http://127.0.0.1:8000/js/main.js:618 (Async: FrameRequestCallback) eventLoop http://127.0.0.1:8000/js/main.js:618 (Async: FrameRequestCallback) eventLoop http://127.0.0.1:8000/js/main.js:618 (Async: FrameRequestCallback) eventLoop http://127.0.0.1:8000/js/main.js:618 (Async: FrameRequestCallback) eventLoop http://127.0.0.1:8000/js/main.js:618 (Async: FrameRequestCallback) eventLoop http://127.0.0.1:8000/js/main.js:618 (Async: FrameRequestCallback) eventLoop http://127.0.0.1:8000/js/main.js:618 (Async: FrameRequestCallback) eventLoop http://127.0.0.1:8000/js/main.js:618 (Async: FrameRequestCallback) eventLoop http://127.0.0.1:8000/js/main.js:618 (Async: FrameRequestCallback) eventLoop http://127.0.0.1:8000/js/main.js:618 (Async: FrameRequestCallback) eventLoop http://127.0.0.1:8000/js/main.js:618 (Async: FrameRequestCallback) eventLoop http://127.0.0.1:8000/js/main.js:618 (Async: FrameRequestCallback) eventLoop http://127.0.0.1:8000/js/main.js:618 (Async: FrameRequestCallback) eventLoop http://127.0.0.1:8000/js/main.js:618

[Brikwerk]

This looks to be a discrepancy between the Chromium and Firefox gamepad API. Firefox doesn't seem to be implementing the entire control scheme for the gamepad, resulting in an error on the Webapp's part. Admittedly, this could probably be handled better on the Webapp's end of things, so I'll mark this as a bug for now and investigate when I have time.