Solution : https://service.sap.com/sap/support/notes/1427561 (SAP Service marketplace login required)
Key words :
user launches http link, displaying mixed content data, display mixed content, terms mdm catalog, ie8 security settings, ie8 message asks, mixed content, user clicks, ie8 clicking, mixed contents
Related Notes :
1347768 | Web Dynpro and Microsoft Internet Explorer Version 8.0 |