Good game and no obvious problems with it. One thing that bothers me in your comments though is you say you only tested under Microsoft Edge. Why are you using Microsoft Edge as the test environment for web games anyway??
At the very least you should be testing your games under both Firefox and Chrome. For one thing, they are available for most OSes and platforms (whereas Microsoft Edge isn't), and for another they will be the majority of what your visitors will be using.
I can tell you right now, in this case, this game works correctly and I encountered no problems under Firefox. But it's rather baffling to me why you wouldn't have tested this under Firefox (and Chrome) yourself prior to uploading here. It's a free download and as a web developer you absolutely should be testing under it.
If you also want to test under Edge, Safari, Opera, Konqueror, or other browsers, that's cool, but at the very least plan to include Firefox and Chrome in your future tests. Don't just make the thing, test it under Microsoft Edge, and assume it'll work in everything else (without testing first).
In this particular case it does happen to work perfectly fine in Firefox, so without your admission, I would likely not have known you didn't test under Firefox, but in the future plan to test all your web games on at least Firefox and Chrome, as that will be what most people use (as well as available for most platforms). This will prevent any problems popping up in the future.