When I start any lab, left-click on the quiz portal open a blank tab. I’ve tried with Chrome, chrome-canary, chromium, firefox, all with all add-ons disabled, and it didn’t change anything.
Kubernetes Environnement seems to be well loaded (I can use the terminal, and kubectl works), but Katacoda doesn’t seem to make any scenarios appearing.
It seems to be an issue with the katakoda end and they are working on to fix this. . In the mean time you can access the quiz portal by clicking on the + sign and view HTTP port 8080 on Host 1