@ThompsonWebDesign This is fantastic, I happened to be looking for this today and stumbled across your post. I was able to implement on Squarespace 7.1, but the pop-up only displays one time. If I click the exit button or Continue Shopping and add more of the same product to the cart (perhaps a different variant), the pop-up no longer displays. Is there any way to add to the code so that the pop-up appears every time Add to Cart is clicked? I'm sure this must be a simple fix, but not particularly tech-savvy. Appreciate any insight you can provide!