How to insert a FletApp in a View?

[TeeFiX42]

Question

I'm using the AppBar with SubMenuButtons to route user clicks to different views. A new view is created for each route.
Is it possible that another flet app is displayed in such a view?
f.e. something like:

Code sample

page.views.append(flet.View(route="/some_route",
                            controls=ft.FletApp(url="http://localhost:8777",
                                                on_error=alert_connection_error,
                                                reconnect_interval_ms=5,
                                                reconnect_timeout_ms=5)

Error message

No response

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• I have searched for answers to my question both in the issues and in previous discussions.