How to cleanup bevy wasm / canvas in a Single Page App during route change

[MyCADDev]

This question seems to have been asked and answered here - #11619

But I cant get the solution to work. Also the OP has removed the rust code from his repo.

A sub optimal way is mentioned here - #12195

Any official way to solve this?

[MyCADDev]

I finally went the iFrame route