Get HTTPS support in just one line

In your react web app, if you need HTTPS support while running on your localhost, just add this in your start script in your package.json file.

{
  "start": "HTTPS=true react-scripts start"
}

Then just run npm start.

You'll see something like this:

But that's acceptable, till your site is getting served over HTTPS.

Bingo!
No need to take efforts of creating an SSL certificate!