App runs in browser, not on emulators


I have an app that runs on chrome with: ionic serve. But when I build and emulate, either on iOS or Android, it does not work. It loads, but there is no data.

My App has a http call to and I think there is where the problem might be.
I read few things about adding access origin or allow navigation to the config.xml file, but nothing worked for me.

Has anyone had this experience before and know how to fix it?