Solution : https://service.sap.com/sap/support/notes/575228 (SAP Service marketplace login required)
Key words :
-- <%= sy-uzeit %> --> <--- insert <script type=, call transaction se80, > <%= gv_js_for_nav %> </script> <% endif, choose 'bsp application', toolbar bar, current screen, program error, solution change, dropdown box, enter crm_bsp_frame