Solution : https://service.sap.com/sap/support/notes/1644847 (SAP Service marketplace login required)
Key words :
prerequisites issue occurs, sp patch level, terms external window, java patch, external window, popup window, original window, webdynproruntime reason, find information, respective correction
Related Notes :
| 1633968 | External Popup Window from within Flash opens in background |
| 1577719 | External Window opens in background if triggered from Popup |
| 1488536 | External Window loses focus if opened by a Popup Window |