$ sudo npm install proxy-polyfill
$ sudo npm install -g proxy-polyfill

If want to update the proxy-polyfill package execute the command as below,

$ sudo npm update proxy-polyfill

Update package globally,

$ npm install -g proxy-polyfill

Git clone:

$ sudo  git clone https://github.com/rektide/proxy-polyfill.git

$ sudo  npm install -g ./proxy-polyfill

proxy-polyfill@0.1.7 /usr/lib/node_modules/proxy-polyfill

How to remove proxy-polyfill package :

You can uninstall or remove this package from your node_modules run the command as below,

$ sudo npm uninstall proxy-polyfill

Basic Information of proxy-polyfill NPM Package: