At the moment ApplePay does not support CloudFlare SSL/TLS.

In order to turn off the Cloudflare SSL, please, follow these steps:

  • Log in to the Cloudflare dashboard and select your account.
  • Select your domain.
  • Go to SSL/TLS > Edge Certificates.

  • For Disable Universal SSL, select Disable Universal SSL.

  • Read the warnings in the Acknowledgement.
  • Select "I Understand" and click Confirm.

Also kindly find list of Ciphers to properly set up your ApplePay and choose the corresponding SSL certificate here.