The Tabs Widget cannot be activated using NVDA screen reader while navigating in brows mode

Steps to Reproduce:

1. Open Tabs Widget Example on Chrome Browser.
2. Turn on NVDA screen reader.
3. Start navigating with the 'h' quick navigation key till the NVDA focus reaches the Example > Demo heading.
4. Start navigating with down arrow. When 'One' tab is active press down arrow till the NVDA focus moves to the 'Two' tab.
5. Press enter and space key and observe.

Description:
NVDA is a screen reader. Users with blindness use to operate computer. All UI elements are required to be operable with screen reader. In the current scenario a blind screen reader user cannot activate tabs when navigating with the NVDA brows mode.
The tabs are actionable only with the focus mode. This causes lots of issues to screen reader users and many will not know how to switch from brows to focus mode just to activate a tab.
The APG Tab Example works fine with NVDA brows mode.
NVDA screen reader can be downloaded from:
https://www.nvaccess.org/download/