Problem
The main page does not open, it only shows DCM loading screen. The similar behavior exits for other module pages ( Audit, Data Content Planner and Blueprint Designer). The page should following screen.
When browser console opened, the console should throw error complaining about g_ck token.
Solution
The user should have ‘admin’ and ‘security_admin’ role to the ServiceNow instance to follow the following steps
Go to System Properties (sys_properties) list and check glide.security.use_csrf_token, the value of property should be changed to true if false.
If the glide.security.use_csrf_token property not found, go to System Definition > Plugins and search for “High Security Settings”. The plugin status should be installed if not install the plugin since it is mandatory plugin to have for instance security, more on pluging details (orlando).