That makes sense, yes. I think it would be best to just enable Fullscreen for the game.
Just go to Edit Game on Itch.io and scroll down to Embed Options:
Thank you, Thanks for the picture too. I updated my code to take advantage of the full screen mode. I knew full screen mode was there I just knew my game couldn't actually take advantage of the screen being resized before. The canvas dimesons were hard coded in. Even without changing the code, enabling full screen does help avoid the space bar problem. I know the arrow keys can be and issue too.