Using Webpack with React-router bundle.js Not Found

Answer 1

If you happen to be using the HtmlWebpackPlugin editing directly index.html is not an option. So, to fix this particular issue, add publicPath and specify / as the root folder inside webpack.config.js:

const path = require('path')

module.exports = {
  entry: './app/index.js',
  output: {
    path: path.resolve(__dirname, 'dist'),
    filename: 'bundle.js',
    publicPath: '/'
  },
  // more config stuff goes below..
} 

Don't forget to restart the webpack dev server for these changes to take effect

More info about publicPath here.