The embed window seemed to be smaller than the actual game itself, showing only a small piece of the screen. It did detect the mouse, but the in-game cursor was offset from my actual mouse position, preventing me from interacting with even the objects I could see.
I'm not going to lie to you, I'm not sure how to fix this bug because I'm not seeing any errors like that in my browser. It might depend on the screen size, could you send me the resolution of your monitor?
Does the Windows version work correctly, at least ?
My monitor's resolution is 1920x1080. I am running firefox just in case that ends up being relevant, too. I'm on linux, so the windows version doesn't work natively, and sadly didn't seem to want to work with wine either.