npm and error messages

node_modules/webpack/lib/webworker/WebWorkerChunkTemplatePlugin.js

@@ -0,0 +1,29 @@
+/*
+	MIT License http://www.opensource.org/licenses/mit-license.php
+	Author Tobias Koppers @sokra
+*/
+"use strict";
+
+const ConcatSource = require("webpack-sources").ConcatSource;
+const Template = require("../Template");
+
+class WebWorkerChunkTemplatePlugin {
+
+	apply(chunkTemplate) {
+		chunkTemplate.plugin("render", function(modules, chunk) {
+			const chunkCallbackName = this.outputOptions.chunkCallbackName || Template.toIdentifier("webpackChunk" + (this.outputOptions.library || ""));
+			const source = new ConcatSource();
+			source.add(`${chunkCallbackName}(${JSON.stringify(chunk.ids)},`);
+			source.add(modules);
+			source.add(")");
+			return source;
+		});
+		chunkTemplate.plugin("hash", function(hash) {
+			hash.update("webworker");
+			hash.update("3");
+			hash.update(`${this.outputOptions.chunkCallbackName}`);
+			hash.update(`${this.outputOptions.library}`);
+		});
+	}
+}
+module.exports = WebWorkerChunkTemplatePlugin;