WIP: Add polyfills but get error about missing template

package.json

@@ -49,6 +49,7 @@
         "html-loader": "^4.0.0",
         "html-webpack-plugin": "^5.6.0",
         "jasmine-core": "^4.0.0",
+        "node-polyfill-webpack-plugin": "^4.0.0",
         "postcss-loader": "^7.0.0",
         "prettier": "^2.0.5",
         "protractor": "^5.4.2",

tsconfig.json

@@ -1,4 +1,8 @@
 {
+    // Adding lang="ts" to a Vue component produced error "browser is not defined".
+    // The `browser` usage is in the spec files, so include only app code.
+    // Test code is abandoned for now.
+    "include": ["app/**/*"],
     "compilerOptions": {
         "outDir": "./dist/",
         "sourceMap": true,

webpack.common.js

@@ -5,6 +5,7 @@ const Dotenv = require("dotenv")
 const CopyWebpackPlugin = require("copy-webpack-plugin")
 const HtmlWebpackPlugin = require("html-webpack-plugin")
 const { VueLoaderPlugin } = require("vue-loader")
+const NodePolyfillPlugin = require("node-polyfill-webpack-plugin")
 
 // Read .env into process.env
 Dotenv.config()
@@ -178,6 +179,7 @@ module.exports = {
             ENVIRONMENT: "development", // Can be: "development", "staging" or "production"
         }),
         new VueLoaderPlugin(),
+        new NodePolyfillPlugin(),
     ],
     ignoreWarnings: [
         (e) => e.message.includes("Can't resolve 'custom"),