config-overrides.js

const webpack = require('webpack')

module.exports = function override(config) {
  const fallback = config.resolve.fallback || {}
  Object.assign(fallback, {
    crypto: require.resolve('crypto-browserify'),
    stream: require.resolve('stream-browserify'),
    assert: require.resolve('assert'),
    http: require.resolve('stream-http'),
    https: require.resolve('https-browserify'),
    os: require.resolve('os-browserify'),
    url: require.resolve('url'),
    zlib: require.resolve('browserify-zlib')
  })
  config.resolve.fallback = fallback
  config.plugins = (config.plugins || []).concat([
    new webpack.ProvidePlugin({
      process: 'process/browser',
      Buffer: ['buffer', 'Buffer']
    })
  ])
  config.ignoreWarnings = [/Failed to parse source map/]
  config.module.rules.push({
    test: /\.(js|mjs|jsx)$/,
    enforce: 'pre',
    loader: require.resolve('source-map-loader'),
    resolve: {
      fullySpecified: false
    }
  })
  return config
}