fix ie11 includes error (#30)

PingPlusPlus · Jan 18, 2018 · 9dd3719 · 9dd3719
1 parent 3064dae
commit 9dd3719
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/src/callbacks.js b/src/callbacks.js
@@ -40,6 +40,6 @@ module.exports = {
     if (typeof this.urlReturnCallback !== 'function') {
       return false;
     }
-    return this.urlReturnChannels.includes(channel);
+    return this.urlReturnChannels.indexOf(channel) !== -1;
   }
 };