Cloudflare Cache Everything and CSRF token mismatch


We are trying to use the CF option Cache Everything for an ecommerce website.
After setting it up like this:

we are getting CSRF token mismatch for all ajax requests. How should we go arround this? After reading this article (Ecommerce websites on Cloudflare: best practices) it seems possible to set up the dynamic portions of an ecommerce website with ajax and serve the rest from cache.