I am working on an application that is set as a system app on Android 10 inside a set top box, the application is given system privileges and originally the Rom that is running on the STB was using Android.System.WebView version 74.X. We now want to run new applications on this STB which use React, but the version of webview does not support javascript. So we upgraded to 114.X version of the webview. Now the react application works flawlessly, however the original system app which has the ability to show html pages and pdf pages inside our app no longer works. It displays a white screen always.