Fix Webpack global function definition, including hot module replacement (#1435)

* Upgrade webpack-cli to 3.0.1

* Wrap output.globalObject in parentheses

Fix global function definition, such as hot module update.

package.json

@@ -52,7 +52,7 @@
     "uglifyjs-webpack-plugin": "^1.2.5",
     "webpack": "^4.9.1",
     "webpack-bundle-analyzer": "^2.13.0",
-    "webpack-cli": "^3.0.0",
+    "webpack-cli": "^3.0.1",
     "webpack-dev-server": "^3.1.4"
   },
   "bin": "cli.js",

webpack.common.js

@@ -59,7 +59,7 @@ function createConfig(target /*: Target */, dev /*: boolean */,
             libraryExport: 'default',
             // Enable output modules to be used in browser or Node.
             // See: https://github.com/webpack/webpack/issues/6522
-            globalObject: "typeof self !== 'undefined' ? self : this",
+            globalObject: "(typeof self !== 'undefined' ? self : this)",
             path: path.resolve(__dirname, 'build'),
             publicPath: dev ? '/' : '',
         },