I want to create an app in Shopify POS where I need access to POS cart data and the ability to render custom HTML. I initially attempted to use POS UI extensions, but discovered that we can't use HTML inside that. Subsequently, I explored Shopify Point of Sale Link extensions, allowing direct linking to a URL from pages in the Shopify POS app. However, I'm unsure of how to pass POS cart data to this external URL. Does anyone have any ideas about this?
