🐛 Browser file must be a UMD (otherwise Webpack is choking)

Author: ggrossetie

src/template-asciidoctor-browser.js

@@ -1,6 +1,22 @@
 //{{opalCode}}
 
-Asciidoctor = function (moduleConfig) {
+// UMD Module
+(function (root, factory) {
+  if (typeof module === 'object' && module.exports) {
+    // Node. Does not work with strict CommonJS, but
+    // only CommonJS-like environments that support module.exports,
+    // like Node.
+    module.exports = factory
+  } else if (typeof define === 'function' && define.amd) {
+    // AMD. Register a named module.
+    define('asciidoctor', ['module'], function (module) {
+      return factory(module.config())
+    })
+  } else {
+    // Browser globals (root is window)
+    root.Asciidoctor = factory
+  }
+}(this, function (moduleConfig) {
 //{{asciidoctorCode}}
 
 //{{asciidoctorAPI}}
@@ -17,4 +33,4 @@ Asciidoctor = function (moduleConfig) {
     return ASCIIDOCTOR_JS_VERSION
   }
   return Opal.Asciidoctor
-}
+}))