MS OAuth2 on Android blank page in login webview -- if I break config, it will display the error in the webview and work

Question

I have a nativescript project and attempting to login using Oauth2.0. Now on iOS, everything works fine. In Android, whenever I click on login the webview is blank white, no error nothing on the console either.

• if I copy-paste the 'url' of the webview for the authorization and take it on my desktop's browser -- all is good and it works
• If I break the configuration of the request by either removing "scopes" or putting gibberish on the redirectURI, the webview displays the microsoft page with an error of what broke.
• Tried Pie and Oreo on Nexus 5 + Pixel XL2
• Updated Chrome/Webview to the latest version
• Implemented custom URI schema for both Android and iOS following nativescript-oauth2 plugin guidelines.
• Tested the webview to make sure it works with other sites

I've been trying things out and pretty much stuck on this for over 3 days now :(

In app manifest for the scheme:

<activity
        android:name="com.tns.NativeScriptActivity"
        android:label="@string/title_activity_kimera"
        android:configChanges="keyboardHidden|orientation|screenSize"
        android:theme="@style/LaunchScreenTheme">

        <meta-data android:name="SET_THEME_ON_LAUNCH" android:resource="@style/AppTheme" />

        <intent-filter>
            <action android:name="android.intent.action.MAIN" />
            <category android:name="android.intent.category.LAUNCHER" />
        </intent-filter>

         <intent-filter>
            <action android:name="android.intent.action.VIEW"/>
            <category android:name="android.intent.category.DEFAULT" />
            <category android:name="android.intent.category.BROWSABLE" />
            <!-- Custom Path data -->
            <data android:path="/auth" 
            android:scheme="msala1ea6c64-3d77-4f2b-9baf-1cf72da2d376"/>
        </intent-filter>

    </activity>

And of course there's the 'android:launchMode="singleTask">`

Oauth2 Config:

`openIdSupport: 'oid-full',
        clientId: 'a1ea6c64-3d77-4f2b-9baf-1cf72da2d376',
        redirectUri: 'msala1ea6c64-3d77-4f2b-9baf-1cf72da2d376://auth',
        urlScheme: 'msala1ea6c64-3d77-4f2b-9baf-1cf72da2d376',
        scopes: ['openid', 'https://outlook.office.com/mail.read']`

and msala1ea6c64-3d77-4f2b-9baf-1cf72da2d376://auth is registered in Azure as a redirectURI