Fix: Compatybility to es5

Author: morriq

lib/index.js

@@ -46,7 +46,7 @@ class MicroservicesWebpackPlugin {
 
 				const value = [
 					this.modules
-						.map(({ cdn, name }) => `define('${name}', ['${cdn}'], v => v)`)
+						.map(({ cdn, name }) => `define('${name}', ['${cdn}'], function(v) {return v;})`)
 						.join('\n'),
 					compilation.assets[fileName].source()
 				].join('\n');