Still supported?

[HeldBoss]

I tried to implement this into my app.
Downloaded all these Packages:
npm install markdown-it
npm install antd
npm install react-ace ace-builds
npm i react-markdown@8.0.6
npm i react-scripts
npm i react-dom
Still does not work, specifically the file JupViewer.js. The error was in regards to '===' and render. I don't have the code up anymore but I would like to implement this. I didn't install python on my front end.