react-scripts 3.3.0 - "The development server has disconnected. Refresh the page if necessary"

Created by: elisciandrello

So in development, just a standard create-react-app template, and I start receiving this console error right away.

I went through previous issues of this sort, followed all instructions but no matter what still ran into this error.

The only way I was able to prevent it from happening was downgrading to react-scripts-3.2.0