Updates style <link>
href value with a hash to trigger a style reload
npm install --save-dev restyle-loader
webpack.config.js
{
  test: /\.css?$/,
  use: [
    {
      loader: "restyle-loader"
    },
    {
      loader: "file-loader",
      options: {
        name: "[name].css?[hash:8]"
      }
    }
  ]
}
 Hash is required to enable HMR
bundle.js
require("./index.css");
// Bundle code here...
 index.html
<head> <link rel="stylesheet" type="text/css" href="css/index.css"> </head>
after the loader runs it becomes
<head> <link rel="stylesheet" type="text/css" href="css/index.css?531fdfd0"> </head>
| 
  Daniel Verejan  |  
    © JS Foundation and other contributors
Licensed under the Creative Commons Attribution License 4.0.
    https://webpack.js.org/loaders/restyle-loader