Keyboard navigation in Tabsheet not working

I am trying a simple test using theTabSheet. I am simply trying to navigate to the tabs using the keyboard. This fails on all browsers I tested (IE, Chrome, FF) latest on all. And also fails on the vaadin demo/sampler tabs. Is this a defect?

Currently the Tabsheet does not support keyboard navigation.

There is already an
enhancement ticket
about the issue as well.

(If you’re a Pro Account member then you could vote for the ticket and it might get done sooner)