browser display "EOF" after npm start

I'm following the w3schools tutorial on react.

So the first thing I'm told to do is to create the create-react-app : npm install -g create-react-app

Then create a React application named myfirstreact : npx create-react-app myfirstreact

The app get created and every thing seems good at this point.

Now I'm asked to Run the React Application by doing the following: cd myfirstreact and npm start, and this is what the Terminal display

myfirstreact@0.1.0 start /root/myfirstreact

react-scripts start

Compiled successfully!    You can now view myfirstreact in the browser.      Local:            http://localhost:3000    On Your Network:  http://192.168.43.128:3000    Note that the development build is not optimized.  To create a production build, use yarn build.  

No new window gets opened in the browser, nothing happens.

So I open the link http://localhost:3000 on the browser and all I got is "EOF", I check the page source and the only thing there is is : EOF

And what I want is to get the default react app.

https://stackoverflow.com/questions/66620389/browser-display-eof-after-npm-start March 14, 2021 at 10:00AM