Fix Firefox

mozilla · Jun 17, 2018 · ce7cfd6 · ce7cfd6
1 parent a21cee5
commit ce7cfd6
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/src/browser-polyfill.js b/src/browser-polyfill.js
@@ -15,6 +15,9 @@
  * @returns {boolean} True if the value for obj[key] is defined.
  */
 const isDefined = (object, key) => {
+  if (object === window && window !== this) {
+    object = this;
+  }
   if (typeof object !== "object" || object === null) {
     return false;
   }