ccm_activateTabBar() not defined when not logged in
For more details I submitted this stackoverflow post:
Meanwhile I got an comment there, that those tabs are not meant to use outside of editing mode, if this is true, is there a way to workaround without refactoring the component with custom code?
The ccm_activateTabBar() method is part of concrete\js\build\core\app\tabs.js. The tab.js file is part of concrete\js\app.js.
A suggestion would be to write your own tab JS, extract and modify the core JS, or use a tab JS library.