IONIC 3 + Android 9 HTTP Request failed

I am getting HTTP Request failed error when I install my IONIC 3 App on android version 9.
I want it to run in all the android version.
I have tried all the CORS related possibilities in server side and in IONIC side as well.


Can you share the code from where the request is send and also what error are you getting?

You redacted the absolute most important information - the endpoint. Is it HTTPS? If not, does the problem persist if you make it so?