Webpack-dev-server: devServer.hot not working.

[oimmc]

• Operating System: OSX
• Node Version: 10.22.0
• "webpack": "^5.1.0",
• "webpack-cli": "^4.0.0",
• "webpack-dev-server": "^3.11.0",

• [x] This is a bug
• [ ] This is a modification request

Code

devServer: {
  historyApiFallback: true,
  host: '0.0.0.0',
  port: 8989,
  compress: true,
  noInfo: true,
  useLocalIp: true,
  hot: true,
  open: false
}

"start": "cross-env NODE_ENV=development webpack serve --progress --config webpack.dev.js"

run npm start, hot not working.

[geart891]

Set target: "web" will fix your problem.

module.exports = {
  // ...
  target: "web"
};

[ylemkimon]

Duplicate of #2758.

[alexander-akait]

Duplicate