As of Mendix 9.6 Mendix has upgraded the Tab Container widget from Dojo to React. Because of this my very much used Tab Switcher widget won't work anymore. The new Tab Container code based on React isn't publicly available, so I can't recreate the Tab Switcher widget to work as of Mendix 9.6 and higher.
My suggestion: Mendix adds the Tab Switcher functionality to the default Mendix Tab Container. I already added a feature request via support. Upvote to generate more attention on this.
Also see a descriptive forum thread on the widget breaking as of Mendix 9.6.x:
+1 for the lazy loading! :)
can we add “lazy loading” for the closed tabs while we're at it :D
+1 On Mendix adding this functionality. It’s so obviously needed to improve user experience.