Solution : https://service.sap.com/sap/support/notes/980888 (SAP Service marketplace login required)
Key words : 
------------------------~autoscroll      0~generatedynpro  1~listscrolling    0~popups          1~style            dhtml~transaction      ebpmsgsave, call transaction se80, transaction code field, web gui interface, internet service field, internet service internet, internet service 'ebpmsg', 'ebpmsg' internet service, generating style, internet service
Related Notes : 
       
| 691888 | |
| 642290 | Link to support: No Internet service | 
| 496810 | EBPMSG Enabling the "Support" button in EBP |