Cloudflare Configuration Issue - Blocked Credit Card Payment/Order Confirmation

Job ID: 34920243

Budget: $10 – $30 CAD

We run an ecommerce / Magento2 website using cloudflare. We get an error when trying to pay for an order using Global Pay Processing API. Although the charge gets processed , the user does not see "Thank you for your Order ! Your Payment was Successful. Your order number is: 000015332."

Please check the attached screenshots. You will see 1 succesfull transaction on test server with NO Cloudflare, and 1 failed confirmation on the live website while using cloudflare.(live website 1 and 2).

We think this is a setting in Cloudflare that is blocking the confirmation.

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