Hot Reload does not work with Webpack 4.25.1

[inca]

Version

15.4.0

Reproduction link

https://github.com/inca/vue-loader-hmr-issue

Steps to reproduce

• git clone https://github.com/inca/vue-loader-hmr-issue
• cd vue-loader-hmr-issue
• npm install
• npm run dev
• go to http://localhost:9000
• try changing app.vue
• observe stack overflow error in DevTools

Please find more details in reproduction README.

What is expected?

Website should reload the module without reloading the page

What is actually happening?

Stack overflow error, which prevents hot reload from working.

Note: if hotOnly: true is omitted in webpack , full page reload happens instead which hides the underlying issue.

---

Versions:

• Vue: 2.5.17
• Vue Loader: 15.4.2
• Vue Template Compiler: 2.5.17
• Webpack: 4.25.1
• Webpack Dev Server: 3.1.10

[inca]

Is Webpack 4 not officially supported?

[haoqunjiang]

webpack/webpack-dev-server#87 (comment)

you shouldn't be doing --hot and new webpack.HotModuleReplacementPlugin() in webpack.config.js > plugins: [] section simultaneously.