When deploying Ionic app to the live server I got the following message in the console.
Angular is running in the development mode. Call
enableProdMode()to enable the production mode.
This has been fixed by importing the module on line 2 and calling the enableProdMode() function before bootstrap in the apps main.ts file.
import { platformBrowserDynamic } from '@angular/platform-browser-dynamic';
import { enableProdMode } from '@angular/core';
import { AppModule } from './app.module';
enableProdMode();
platformBrowserDynamic().bootstrapModule(AppModule);