fallback for browsers that don't support createEvent('CustomEvent')

Author: Adam Bradley

dist/js/ionic-angular.min.js

@@ -245,8 +245,17 @@ window.ionic = {
           cancelable: false,
           detail: undefined
         };
-        evt = document.createEvent("CustomEvent");
-        evt.initCustomEvent(event, params.bubbles, params.cancelable, params.detail);
+        try {
+          evt = document.createEvent("CustomEvent");
+          evt.initCustomEvent(event, params.bubbles, params.cancelable, params.detail);
+        } catch (error) {
+          // fallback for browsers that don't support createEvent('CustomEvent')
+          evt = document.createEvent("Event");
+          for (var param in params) {
+            evt[param] = params[param];
+          }
+          evt.initEvent(event, params.bubbles, params.cancelable);
+        }
         return evt;
       };
 

dist/js/ionic.js

@@ -15,9 +15,7 @@
   // Custom event polyfill
   if(!window.CustomEvent) {
     (function() {
-      var CustomEvent,
-      ua = navigator.userAgent,
-      androidVersion = ua.indexOf('Android') >= 0? parseFloat(ua.slice(ua.indexOf("Android")+8)) : 0;
+      var CustomEvent;
 
       CustomEvent = function(event, params) {
         var evt;
@@ -26,15 +24,16 @@
           cancelable: false,
           detail: undefined
         };
-        if (androidVersion < 4.0) {
+        try {
+          evt = document.createEvent("CustomEvent");
+          evt.initCustomEvent(event, params.bubbles, params.cancelable, params.detail);
+        } catch (error) {
+          // fallback for browsers that don't support createEvent('CustomEvent')
           evt = document.createEvent("Event");
           for (var param in params) {
             evt[param] = params[param];
           }
           evt.initEvent(event, params.bubbles, params.cancelable);
-        } else {
-          evt = document.createEvent("CustomEvent");
-          evt.initCustomEvent(event, params.bubbles, params.cancelable, params.detail);
         }
         return evt;
       };