Production build contains await operator (@ionic/core). Brokes down all android < 7.1

Bug Report

Ionic Info

Ionic:

   ionic (Ionic CLI)          : 4.0.2
   Ionic Framework            : @ionic/angular 4.0.0-beta.1
   @angular-devkit/core       : 0.7.4
   @angular-devkit/schematics : 0.6.1
   @angular/cli               : 6.1.4
   @ionic/ng-toolkit          : 1.0.6
   @ionic/schematics-angular  : 1.0.5

Cordova:

   cordova (Cordova CLI) : 8.0.0
   Cordova Platforms     : android 7.1.1, ios 4.5.4

System:

   NodeJS : v10.9.0 (D:\Program Files\nodejs\node.exe)
   npm    : 6.2.0
   OS     : Windows 10

Environment:

   ANDROID_HOME : not set

Describe the Bug @ionic/core/dist/colleciton/utils/framework contains await operator in production build!

Bad part of it - this files added automatically by ionic/cli, not by developer.

Steps to Reproduce Steps to reproduce the behavior:

1. Use IonicModule in your angular app
2. Add any stencil component (ion-scroll for example)
3. Run on Android < 7.1.1

Related Code none

Expected Behavior All compiled source codes should be transpiled down to es5 (“target”: “es5”` in tsconfig.json). @angular/cli don’t transpile js code.

Additional Context none

[manucorporat]

Nice! going to close this issue, and continue tracking the ionic-native/push one in the other repo, thanks for reporting the issue!

[ionitron-bot[bot]]

Thanks for the issue! This issue is being locked to prevent comments that are not relevant to the original issue. If this is still an issue with the latest version of Ionic, please create a new issue and ensure the template is fully filled out.