Sourcemaps with webpack css-loader

Question

I am struggling to get sourcemaps working with css-loader.

Output in console:

What the documentation from css-loader says:

Sourc

Answer 1

There are some properties you need to set in your webpack config.

{
   output: {
      ...
   },

   debug: true, // switches loaders into debug mode
   devtool: 'eval-cheap-module-source-map', // or one of the other flavors, not entirely sure if this is required for css source maps
   ...
}

The webpack dev server doesn't have debug on by default. Instead of setting it in your config, you can also pass the -d or --debug flag to webpack-dev-server via the CLI.