A little Ajax would do the trick. Just retrieve the same page via Ajax, and inspect the contents for the cart.

Agreed Stephen.   The argument against it is really, really poor.

I thought I could get them with: /api/v2/admin/sites/current/rendering/modules, but that url doesn't work.

Sabrina,   Liam is answering your question very directly. He said no, but he provided you with more information so you understood why.

In theory, categories are a natural and wonderful way to display information. In practice, however, I completely avoid BC's implementation of categories. It is almost worthless. It has limited output…

Thanks. That's good info.   Just occurred to me that the ultimate fast way of retrieving data in an app is just to render it on the page as a hidden JavaScript object. At least for initial data…

I second Liam's comment about includes.

Just to clarify something that Liam said, there are no ID attributes (referring to HTML attributes) that matter on BC forms. The attributes that BC looks at are as follows:   "name" attribute on…

 

Are you referring to the validation error messages you get with your form? If so, you can customize those buy editing the text in the JavaScript that gets outputted below your form.

Depends on the circumstance, but for the most part, yeah, separate is better.