1 files changed, 11 insertions, 0 deletions
diff --git a/app/assets/javascripts/lib/utils/customevent_polyfill.js.es6 b/app/assets/javascripts/lib/utils/customevent_polyfill.js.es6
new file mode 100644
index 00000000000..416edb674dd
--- /dev/null
+++ b/app/assets/javascripts/lib/utils/customevent_polyfill.js.es6
@@ -0,0 +1,11 @@
+/**
+ * CustomEvent support for IE
+ */
+window.CustomEvent = window.CustomEvent || function CustomEvent(event, params) {
+  const options = params || { bubbles: false, cancelable: false, detail: undefined };
+  const evt = document.createEvent('CustomEvent');
+  evt.initCustomEvent(event, options.bubbles, options.cancelable, options.detail);
+  return evt;
+};
+
+window.CustomEvent.prototype = window.CustomEvent.prototype || window.Event.prototype;