Www folder is missing with ionic react app using cordova plugin

Ionic version:
ionic 4.0

Current behavior:

I am trying to create a ionic react app, using my custom cordova plugin.
I use https://ionicframework.com/blog/ionic-cli-v5-brings-react-beta-support/ to create the app. After adding cordova plugin and running ionic build/cordova prepare for ios the www folder is empty.
compared to ionic react app, if i create app for target angular it fills www folder correctly.

Expected behavior:
ionic build/cordova prepare should add desired file including index.html to www folder which is not happening fo rreact-ionic app.

Steps to reproduce:
ionic start myApp --type=react
ionic cordova plugin list
ionic cordova plugin add cordova-plugin-custom => add cordova dependencies
ionic cordova platform ios => add www folder but empty
ionic cordova build ios
ionic cordova prepare ios => www folder is still empty
ionic cordova run ios => throws an error saying www/index.html not found.

Other information:
If I execute same steps as above except first line as ionic start myApp --type=angular, it shows www folder correctly including index.html and works fine.

Ionic:

Ionic CLI : 5.0.2 (/usr/local/lib/node_modules/ionic)
Ionic Framework : @ionic/react 0.0.5

Cordova:

Cordova CLI : 8.1.1 (cordova-lib@8.1.0)
Cordova Platforms : ios 4.5.5
Cordova Plugins : cordova-plugin-ionic-keyboard 2.1.3, cordova-plugin-ionic-webview 4.1.0, (and 4 other plugins)

Utility:

cordova-res : 0.5.1
native-run : 0.2.7

System:

NodeJS : v8.10.0 (/usr/local/bin/node)
npm : 6.9.0
OS : macOS Mojave
Xcode : Xcode 10.2.1 Build version 10E1001

Anybody tried similar stuff?

Ionic CLI doesn’t support Cordova for React, only Capacitor.
If you want to use Cordova you’ll have to use Cordova CLI commands directly instead of Ionic CLI commands, and you’ll have to configure react to build to www or add some script that copies the files over.