Request header field Authorization is not allowed by Access-Control-Allow-Headers

Hi Team,

I have migrate my IOS ionic v1 app to IOS 13 and xcode 11.5. when I install the app and try to login first time then I am able to login successfully. But when I kill the app and try to open the app then it wont allow me to auto login.

In the config.xml have added these settings

    <preference name="WKSuspendInBackground" value="false" />
    <preference name="iosScheme" value="httpsionic" />
    <allow-navigation href="httpsionic://*" />
    <allow-navigation href="http://localhost:8100/*" />

when i try to open the app after killing the app from task manager. it wont allow me to login. Its giving me an error

Request header field Authorization is not allowed by Access-Control-Allow-Headers.

First Time run work as expected :-

after killing the app and open it again :-

this is the console log

from last 2-3 days i am stuck here.

Please let me know what I am missing something here.
this is my ionic info

Ionic:
   Ionic CLI         : 5.3.0
   Ionic Framework   : ionic1 1.2.4
   @ionic/v1-toolkit : 2.0.11

Cordova:
   Cordova CLI       : 9.0.0 (cordova-lib@9.0.1)
   Cordova Platforms : ios 5.1.1
   Cordova Plugins   : cordova-plugin-ionic-webview 5.0.0, (and 18 other plugins)

Utility:
   cordova-res : not installed
   native-run  : 0.2.8 (update available: 1.0.0)

System:
   ios-deploy : 1.9.0
   ios-sim    : 8.0.2
   NodeJS     : v10.16.3 (/usr/local/bin/node)
   npm        : 6.9.0
   OS         : macOS Catalina
   Xcode      : Xcode 11.5 Build version 11E608c

That’s related to CORS (Cross Origin Resource sharing)

Yes but first time I am able to login it without any CORS error