Workaround mysterious HTMLWidgets scaffold problem related to webpack externs

Author: alandipert

srcjs/widget.js

@@ -1,5 +1,3 @@
-import HTMLWidgets from 'htmlwidgets';
-
 /**
  * Recursively transforms tag, a JSON representation of an instance of a
  * React component and its children, into a React element suitable for
@@ -77,7 +75,7 @@ export function isTag(value) {
  */
 export function reactWidget(name, type, components, options) {
     var actualOptions = mergeOptions(options);
-    HTMLWidgets.widget({
+    window.HTMLWidgets.widget({
         name: name,
         type: type,
         factory: function (el, width, height) {

webpack.config.js

@@ -22,8 +22,7 @@ module.exports = {
         'react': 'window.React',
         'react-dom': 'window.ReactDOM',
         'jquery': 'window.jQuery',
-        'shiny': 'window.Shiny',
-        'htmlwidgets': 'window.HTMLWidgets'
+        'shiny': 'window.Shiny'
     },
     stats: {
         colors: true