diff --git a/js/main.js b/js/main.js
index ed89826e..7a585425 100644
--- a/js/main.js
+++ b/js/main.js
@@ -433,4 +433,8 @@ var MM = (function() {
 
 })();
 
+// Add polyfill for Object.assign.
+if (typeof Object.assign != 'function') { (function () { Object.assign = function (target) { 'use strict'; if (target === undefined || target === null) { throw new TypeError('Cannot convert undefined or null to object'); } var output = Object(target); for (var index = 1; index < arguments.length; index++) { var source = arguments[index]; if (source !== undefined && source !== null) { for (var nextKey in source) { if (source.hasOwnProperty(nextKey)) { output[nextKey] = source[nextKey]; } } } } return output; }; })(); } 
+
+
 MM.init();