I couldn't do it myself, but just in case, I nerfed you :D. If it's still working for you, try pressing Ctrl+Shift+R (hard refresh the page). I'm not sure if that will help on itch, but if it still works, could you send a screenshot?
Thanks for the comment. You're right-I missed that exploit. I'll fix it soon. Making it so you can't place pegs too close to the top is a great idea, thanks. I tried making the nuts drop from random spots, but that completely strips the game of its tactical aspect.