added check for window in Common.now

liabru · Sep 14, 2019 · 9ef9d02 · 9ef9d02
1 parent f9ea799
commit 9ef9d02
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/src/core/Common.js b/src/core/Common.js
@@ -257,7 +257,7 @@ module.exports = Common;
      * @return {number} the current timestamp
      */
     Common.now = function() {
-        if (window.performance) {
+        if (typeof window !== 'undefined' && window.performance) {
             if (window.performance.now) {
                 return window.performance.now();
             } else if (window.performance.webkitNow) {