Well thats unfortunate. Havent run into that myself. What web browser are you using? Does the executable version work?
Using Firefox
Didn't try the executable
Huh, that's odd. I booted it up in Firefox and it worked fine. The web version of Godot/Redot has always done weird things, but I'll try to look into it. It's a Jam entry though and I don't think I'm supposed to touch it til the judging is finished
Usually they allow to fix bugs that breaks the game. You can probably ask to be sure in some section of the jam