Freezing at pole points

Hello everyone, i have a question about an app from Getting Started page ( Why when i am trying full zoom to south (-180, -90) or north (180, 90) pole the app starts freezing? How can i fix it?

Welcome to the Cesium community! Thank you for checking out our tutorials.

Can you follow up with a screenshot/gif/video of what you are experiencing? It would be helpful to reproduce the error on our end.

I found same problem.
In any cesium page, you can’t full zoom pole to center.
If you can see the Latitude / Longitude grid, the problem is more clear.
you can test it in this page: mapbox