Added web worker example

scripts/webpack.config.worker.dev.js

@@ -0,0 +1,29 @@
+const path = require('path');
+const webpack = require('webpack');
+const common = require('./webpack.config.common');
+
+const genConfig = ({
+  entry, filename, library, libraryTarget,
+}) => ({
+  ...common,
+  mode: 'development',
+  target: 'webworker',
+  entry,
+  output: {
+    filename,
+    library,
+    libraryTarget,
+  },
+  devServer: {
+    allowedHosts: ['localhost', '.gitpod.io'],
+  },
+});
+
+module.exports = [
+  genConfig({
+    entry: path.resolve(__dirname, '..', 'src', 'index.js'),
+    filename: 'ffmpeg.dev.js',
+    library: 'FFmpeg',
+    libraryTarget: 'umd',
+  }),
+];

scripts/worker-server.js

@@ -0,0 +1,25 @@
+const webpack = require('webpack');
+const middleware = require('webpack-dev-middleware');
+const express = require('express');
+const path = require('path');
+const cors = require('cors');
+const webpackConfig = require('./webpack.config.worker.dev');
+
+const compiler = webpack(webpackConfig);
+const app = express();
+
+function coi(req, res, next) {
+  res.setHeader("Cross-Origin-Opener-Policy", "same-origin");
+  res.setHeader("Cross-Origin-Embedder-Policy", "require-corp");
+  next();
+}
+
+app.use(cors());
+app.use(coi);
+
+app.use('/', express.static(path.resolve(__dirname, '..')));
+app.use(middleware(compiler, { publicPath: '/dist', writeToDisk: true }));
+
+module.exports = app.listen(3000, () => {
+  console.log('Server is running on port 3000');
+});