Webpack Source Map Support

2.0.1 verified Sat Apr 25 auth: no javascript

A Webpack plugin that automatically adds `source-map-support` to your bundle so errors in Node.js applications built with Webpack include mapped stack traces. Version 2.0.1 is stable and requires Webpack 1.x. It injects the dependency at build time, simplifying configuration compared to manual setup. Lightweight with no runtime overhead beyond the source-map-support library itself.

Common errors

error Error: Cannot find module 'source-map-support' ↓

cause source-map-support is not installed as a dependency.

fix

Run npm install source-map-support to add it.

error Module not found: Error: Can't resolve 'webpack-source-map-support' ↓

cause Package not installed or path incorrect.

fix

Install via npm install webpack-source-map-support --save-dev.

Warnings

deprecated Only supports Webpack 1.x; not compatible with Webpack 2+. ↓

fix Use webpack-source-map-support@latest or switch to source-map-support manual integration.

gotcha Plugin injects source-map-support globally; may conflict with other error handling libraries. ↓

fix Ensure no other global error handlers override the behavior.

Install

npm install webpack-source-map-support

yarn add webpack-source-map-support

pnpm add webpack-source-map-support

Imports

WebpackSourceMapSupport

wrong

import WebpackSourceMapSupport from 'webpack-source-map-support';

correct

const WebpackSourceMapSupport = require('webpack-source-map-support');

CommonJS only; no ESM export available.

Quickstart

Shows how to add the plugin to webpack.config.js for Node.js target with source-map devtool.

// webpack.config.js
const WebpackSourceMapSupport = require('webpack-source-map-support');
module.exports = {
  entry: './src/index.js',
  output: {
    path: __dirname + '/dist',
    filename: 'bundle.js'
  },
  target: 'node',
  devtool: 'source-map',
  plugins: [
    new WebpackSourceMapSupport()
  ]
};