`npm start` variable `BROWSER` is not working.

Created by: minnie-J

package.json

"scripts": {
    "start": "BROWSER=chrome react-scripts start"
}

It works in CRA v4.x. But it doesn't work in CRA v5.0.0 It opens with the default browser (Firefox).

Environment

Windows 10 WSL 2 node v14.16.0 npm v6.14.11