Helping out a friend put his catering company online. I am using the Modular theme. I installed an app for local delivery that sits in the cart page, the modular theme refreshes the cart page every time I change the quantity there (and removes the app's presence to select a date and a time for local delivery). Basically, every time I add an item to cart or something, the js refreshes and the app gets removed unless the user refreshes the page.
Any Modular theme expert that can help?
Could you kindly let me know which app you are using for the calendar because the issue that you are facing in such situation appp developer can assist you in getting it worked.
You can ask there support to make it work.
Also, you can try this app for the calendar and time :- https://apps.shopify.com/delivery-date-pro
Kindly let me know if I can assist you further.