Actually, after that, I really wanted to play this game, so I accessed the game objects directly and played this game. I had a great time. Honestly, it was fun.
It's possible that you've configured the settings incorrectly—such as having WebGL share input focus with the page when the game is exported—or that the issue might be resolved by adjusting settings on itch.io, such as “Enable scrollbars” or the “Fullscreen” button. Anyway…
"Essential Bug Fixes" and "Adding New Platform Builds" are permitted.
https://itch.io/post/16501718
…I think this falls under the "Essential Bug Fixes" mentioned there, so if possible, fixing it quickly might result in everyone being able to enjoy the game. 🙂