EmbyPluginUiDemo in SDK shows an issue with back button with a tab controller

[ginjaninja 613]

Video says it all, i had a navigation fail using the back button on a multi-tab MVC plugin i was working on in that you lose the tab header when clicking back button in top left in the UI (not on the browser).
It turns out the demo sdk patterns which i was largely copying also exhibit the issue.

Is there something missing from EmbyPluginUiDemo that would stops the misbehaviour of the back button, that i could copy to my plugin?

thank you