SUM 1.0 SP16 patch 1 and 2 SL Common UI http://<hostname>:1128/lmsl/sumjava/<SID>/dual.html returns no content even after succesfully registering SUM in SAP Host Agent and providing the username and password asked.
In the same time, I can see the following error in Google Chrome web console tab (F12).
But if I login the SUM SL Common UI ABAP Stack http://<hostname>:1128/lmsl/sumabap/<SID>/doc/sluigui, the page can be shown out successfully.
SUM 1.0 SP16 patch 1 and 2
Windows Server 2008 R2
SAP Solution Manager 7.1 SR1
SAP Host Agent 7.21 with latest patch
The blank page problem for SUM SL Common UI Dual Stack occurs in Google Chrome 49.0.2623.75 (latest), Mozilla Firefox 44.0.2 (latest) and IE 11.
Not sure if it is a program problem or something else. 😕
However, for Mozilla Firefox 31.7.0 which located in one of my test SLES servers, the dual stack page can show out the content required (other web browsers without latest version are not tested, sorry).
I have open a message to SAP AGS SUM team, they will take time to test and fix this problem.
Hope this blog will help to fix this kind of problem.