Hanging webpack

package.json

{
  "name": "webpack-hangs",
  "version": "1.0.0",
  "description": "",
  "main": "index.js",
  "author": "teekaay",
  "license": "MIT",
  "scripts": {
    "start": "node app.js",
    "test": "./node_modules/.bin/jest",
    "test:watch": "npm run test -- --watch",
    "test:coverage": "npm run test -- --cov",
    "lint": "./node_modules/.bin/eslint --format table src/**/*.js",
    "bundle:hot": "./node_modules/.bin/webpack-dashboard -- ./node_modules/.bin/webpack-dev-server --content-base ./",
    "bundle:prod": "./node_modules/.bin/webpack",
    "bundle:profile": "npm run bundle:prod -- --profile --json > reports/build-stats.json"
  },
  "devDependencies": {
    "babel-core": "^6.25.0",
    "babel-eslint": "^7.2.3",
    "babel-jest": "^20.0.3",
    "babel-loader": "^7.1.1",
    "babel-preset-es2015": "^6.24.1",
    "babel-preset-react": "^6.24.1",
    "babel-preset-stage-2": "^6.24.1",
    "enzyme": "^2.9.1",
    "eslint": "^4.2.0",
    "eslint-plugin-react": "^7.1.0",
    "jest": "^20.0.4",
    "jest-enzyme": "^3.4.0",
    "react-addons-test-utils": "^15.6.0",
    "react-hot-loader": "^1.3.1",
    "react-test-renderer": "^15.6.1",
    "webpack": "2.5.1",
    "webpack-dashboard": "^0.4.0",
    "webpack-dev-server": "^2.5.1"
  },
  "babel": {
    "presets": [
      "es2015",
      "stage-2",
      "react"
    ]
  },
  "jest": {
    "setupTestFrameworkScriptFile": "./node_modules/jest-enzyme/lib/index.js",
    "unmockedModulePathPatterns": [
      "react",
      "enzyme",
      "jest-enzyme"
    ],
    "testRegex": ".*.spec.js",
    "verbose": true,
    "bail": true,
    "notify": true
  }
}

run-webpack.sh

#!/bin/sh

# Hangs
NODE_ENV=production ./node_modules/.bin/webpack -p --progress  

# Does not hang -> Finishes after a minute
NODE_ENV=production ./node_modules/.bin/webpack-dashboard -- ./node_modules/.bin/webpack -p --progress 

webpack.config.js

const path = require('path');
const webpack = require('webpack');
const package = require('./package.json');
const DashboardPlugin = require('webpack-dashboard/plugin');

// Configuration
const buildDir = path.resolve('./dist');
const srcDir = path.resolve('./app');
const isProduction = process.env.NODE_ENV === 'production';

const config = {
    entry: path.join(srcDir, 'index.js'),
    devtool: isProduction ? 'eval' : 'source-map',
    output: {
        path: buildDir,
        filename: 'bundle.js',
        publicPath: '/dist',
    },
    resolve: {
        extensions: ['.js'],
    },
    module: {
        loaders: [
            {
                test: /\.js$/,
                exclude: /node_modules/,
                loaders: ['react-hot-loader', 'babel-loader'],
            },
        ],
    },
    devServer: {
        port: 7070,
        host: 'localhost',
        hot: true,
        inline: true,
        historyApiFallback: true,
        proxy: {

        },
    },
    plugins: [
        new webpack.DefinePlugin({
            'process.env.NODE_ENV': JSON.stringify(process.env.NODE_ENV),
        }),
        new DashboardPlugin(),
    ],
};

if(isProduction === false) {
    config.plugins.push(new webpack.HotModuleReplacementPlugin());
}

module.exports = config;