How to load external react web app.
Created a simple web app based on create-react-app that will simlulate the external web. Create-react-app webserver (run yarn start) is blocking external calls to manifest.json so I had to implement a static web server (/static_webserver). thePage.html inside web folder will simulate the place where you want to load the external react web from. Before you fire upp the web server thePage.html should not render anything.
yarn
yarn build
cd /static_webserver
node app.js
cd /web
open thePage.html in the browser