How to set cloudflare to pass POST & GET parameters in a specific folder of Prestashop?

How to set Cloudflare to pass POST & GET parameters in a specific folder of Prestashop?

The answer will be probably workers, but you need to elaborate on what you want to accomplish as it does not seem to be clear.

Sorry, I’ll try to explain better my problem, in prestashop I have a payment module who doesn’t works with Cloudflare, because clouflare block calls to return url.
So who developed the module told me to able POST & GET calls from Cloudflare

That is probably not related to GET, POST or whatever, but to Cloudflare’s security layer. You should whitelist the IP address where that call comes from.