• Introduction
• Development
• Changing the Port
• Configuring SSL
• Configuring Basename
• Building
• Development
• Production
• Analyzing
• Stats
• Features
• Cache Busting
• Chunking
• CSS Preprocessors
• Favicon
• Fonts
• Images
• Source Maps
• Misc
• Verify Production Build Locally

Source Maps

Webpack is configured to generate sourcemaps for production build, to make debugging production applications easier. They are not generated in development.

In development, the eval version is used, which will show you the transpiled version of code, to see what the browser will actually be running.

Relevant Section

This section of the Webpack config that controls this behavior is shown below:

devtool: ifProduction('source-map', 'eval'),