Fix build issues

Author: ThomasKranitsas

config/webpack/default.js

@@ -1,4 +1,9 @@
 module.exports = {
+  node: {
+    tls: 'empty',
+    fs: 'empty',
+    net: 'empty',
+  },
   // Don't include the dependencies to keep built bundle small,
   // they will be provided by the app using this lib
   externals: [