Contents:
CF_HEADER_CDN_LOOP_ENABLED
CF_HEADER_CDN_LOOP_ATTR_NAME
CF_HEADER_IP_ENABLED
CF_HEADER_IP_ATTR_NAME
CF_HEADER_COUNTRY_ENABLED
CF_HEADER_COUNTRY_ATTR_NAME
CF_HEADER_RAY_ENABLED
CF_HEADER_RAY_ATTR_NAME
CF_HEADER_WARP_TAG_ENABLED
CF_HEADER_WARP_TAG_ATTR_NAME