Sonar is configured with security, but allows anonymous users to see the main dashboards, like i.e. "Projects". Issue:
1) As admin, configure an additional (shared) filter for the "Projects" global dashboard
2) Use the project-selection option "Favourites only" and display as table (whatever values)
4) As an anonymous user, you get a "An error occurred while trying to display the widget "Filter". Please contact the administrator" on the Projects Dashboard. The sonar-log contains:
Can not render widget filter: undefined method `favourite_ids' for nil:NilClass /WEB-INF/app/models/filters.rb:37:in `execute' compiled-template:3:in '_run_inline_1031195290_locals_dashboard_configuration_widget_widget_properties' org/jruby/RubyKernel.java:2056:in `send'