2661988 - SAML2.0: Destination from Response <URL> must match the actual URL where message was sent

Authentication using SAML2.0 to the NetWeaver ABAP fails when using a reverse proxy (web dispatcher) and the following errors appears in the SAML trace collected with the Security Diagnostic tool:

Destination from Response <URL> must match the actual URL where message was sentMessage 'Response' did not arrive at the correct destination.
Long text: Message 'Response' did not arrive at the correct destination.

• SAP enhancement package 2 for SAP NetWeaver 7.0
• SAP NetWeaver 7.3
• SAP enhancement package 1 for SAP NetWeaver 7.3
• SAP NetWeaver 7.4
• SAP NetWeaver 7.5 and higher

 Sec_diag_tool, SP, IdP, DMZ, intranet, Fiori, Launchpad, FLP, Web Dispatcher, SAML2 service not accessible, was terminated during SAML2 processing, HTTP 404 not found, SAML, load balancer. , KBA , BC-SEC-LGN-SML , SAML 2.0 for ABAP , CA-FE-FLP-EU , Please use CA-FLP-FE-UI , CA-UI2-INT-FE , Please use CA-FLP-FE-COR , CA-UI2-INT-BE , Please use CA-FLP-ABA , Problem