When created shopping cart using commerce accelerator, I
found it blank:
- Items header without any item
- Summary/Totals appear labels only
After I checked error in browser found the following urls
gave me 404:
- api/cxa/Cart/GetCart
- api/cxa/Cart/GetPromoCodes
I found these urls work fine with delivery page.
After investigation found difference in AntiForgery.
Finally, I found problem missing (Commerce metadata control)
which add AntiForgery hidden field.