View's initial page does not mount inside a routable popup


I’m usind React + F7, and want to open a routable popup, on popupOpen create a new view, and load the view’s initial page from another file.
I tried to repeat the third method from this tutorial. However, I faced a problem that page does not mount inside the view.

React Sandbox

Any ideas what I am doing wrong or how to implement it better?

here => relaxed-rgb-cmroqr - CodeSandbox

It worked, thank you!