Solution : https://service.sap.com/sap/support/notes/1045941 (SAP Service marketplace login required)
Key words :
bsp application /sap/bc/bsp/sap/crm_ui_frame/repository, factory method cl_http_client=>create, terms ~request_uri query reason, relevant support package, query components, query parameters, client instance, http proxy, http destination, path prefix
Related Notes :
1144511 | Blank screen when starting CRM WebClient or IC WebClient |