Hot reloading no longer works after switching back to default WebpackDevServer client

Created by: twig

I had to switch to the default WebpackDevServer client because it allowed me to specify the server address. I've found that doing so breaks the hot reloading functionality completely.

I have another project created by an older version of create-react-app (sorry, can't remember what version) but it's using the same version of webpack-dev-server and configuration and works fine. That's with the same node/npm.

Can you reproduce the problem with latest npm?

I'm currently using the latest node and npm available (node 6.10.0 / npm 3.10.10)

Description

Hot reload does not work with the default webpack-dev-server client

Expected behavior

Hot reload should work with the default webpack-dev-server client.

Actual behavior

There is no websocket connection attempt made to the address specified (http://localhost:3000/), hence hot reload can never be triggered by a code change.

Environment

Run these commands in the project folder and fill in their results:

1. npm ls react-scripts (I've ejected)
2. node -v: 6.10.0
3. npm -v: 3.10.10

Then, specify:

1. Operating system: Windows 7 x64
2. Browser and version: Chromium, Firefox, Vivaldi

Reproducible Demo

Steps to reproduce:

With the latest node/npm/yarn

• npm install -g create-react-app

• create-react-app hotreload

• cd hotreload

• yarn start

• Test that hot reload works by editing App.js

• Stop the server

• yarn eject

• confirm Y

• yarn start

• Test that hot reload works by editing App.js

• edit hotreload/config/webpack.config.dev.js

• find line 43: require.resolve('react-dev-utils/webpackHotDevClient'),

• comment it out and replace it with require.resolve('webpack-dev-server/client') + '?http://localhost:3000/',

• yarn start

• Test that hot reload works by editing App.js

• Hot reload no longer works