It doesn't work if I use the "Buy Now" option directly instead of going to the cart every time. Tested multiple times and got the same result. Uninstalled it after testing.
Thanks for taking the time to try out Easy Shipping Restrictions, I appreciate it! Buy Now buttons bypass the cart page, where the app does its magic. The app latches onto the customer UX on the cart page as modifications to the checkout page are limited and only available for some Shopify Plans. By putting Easy Shipping Restrictions on the cart page I am able to service smaller ma and pa shops. Thanks and let me know if you want to try the app again - firstname.lastname@example.org