As of SAP NW Release 7.51, the HTTP Whitelist functionality has been integrated into the Unified Connectivity (UCON) concept. The UCON Whitelist functionality has also been downported to the releases 740 and 750 (SAP Note 2573569).
The new UCON based whitelist provides an additional logging / simulation phase, and also the additional functionality Cross-origin Resource Sharing (CORS). However the classic whitelist check (based on the HTTP_WHITELIST table) is still supported.
Note: It is possible to activate the UCON based whitelist check, even if no white list entries are maintained. As a result, all HTTP calls may be rejected with HTTP 500 errors. See the KBA 2704178 for details.