Platform.is returns wrong value in v4

[ASHFAQPATWARI]

Bug Report

When running on chrome desktop browser, this.platform.is('core') should return true. But currently it returns false.
Ionic Info
Run ionic info from a terminal/cmd prompt and paste the output below.

Ionic:

   ionic (Ionic CLI)          : 4.0.6 (/usr/local/lib/node_modules/ionic)
   Ionic Framework            : @ionic/angular 4.0.0-beta.2
   @angular-devkit/core       : 0.7.1
   @angular-devkit/schematics : 0.7.1
   @angular/cli               : 6.1.1
   @ionic/ng-toolkit          : 1.0.1
   @ionic/schematics-angular  : 1.0.2

Cordova:

   cordova (Cordova CLI) : 8.0.0
   Cordova Platforms     : none

System:

   NodeJS : v10.1.0 (/usr/local/bin/node)
   npm    : 6.3.0
   OS     : macOS High Sierra
   Xcode  : Xcode 9.4.1 Build version 9F2000

Steps to Reproduce
Steps to reproduce the behavior:

1. Console log this.platform.is('core') and run on desktop browser.
2. See that it logs false

Expected Behavior
this.platform.is('core') Should return true

Additional Context
this.platform.platforms() also returns ['android'] which is wrong.

Related issue: #15051

[brandyscarney]

Thanks for the issue! We will look into this.

Merging the following issues into this one to verify/fix:

• ionic v4 platform specify like ionic v3 ionic v4 platform specify like ionic v3 #15051
• v4: Platform.is not detecting core when run inside browser v4: Platform.is not detecting core when run inside browser #14802
• platform.is('ios') return false on ios when deployed as app platform.is('ios') return false on ios when deployed as app #14646
• Ionic 4: platform.is('electron') failed for electron 2.0.1 Ionic 4: platform.is('electron') failed for electron 2.0.1 #14517

[gbacskai]

similar here:
ionic serve:
native chrome (osx) : ["core"] - ok
change chrome as browse in iPhoneX: ["mobile", "ios", "iphone", "mobileweb"] - ok

but when I put the whole code from ./platform/browser/www:
native chrome : ["cordova", "core"] - ok
change chrome as browse in iPhoneX: ["cordova", "mobile", "ios", "iphone"] - not ok as this is a web browser

from ./platforms/browser/www is having the issue
from ./www is ok, ionic serve is ok

[goelectricstations]

same issue

[ionitron-bot]

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