1 files changed, 18 insertions, 0 deletions
diff --git a/app/assets/javascripts/commons/polyfills/event.js b/app/assets/javascripts/commons/polyfills/event.js
new file mode 100644
index 00000000000..ff5b9a1982f
--- /dev/null
+++ b/app/assets/javascripts/commons/polyfills/event.js
@@ -0,0 +1,18 @@
+/**
+ * Polyfill for IE11 support.
+ * new Event() is not supported by IE11.
+ * Although `initEvent` is deprecated for modern browsers it is the one supported by IE
+ */
+if (typeof window.Event !== 'function') {
+  window.Event = function Event(event, params) {
+    const evt = document.createEvent('Event');
+    const evtParams = {
+      bubbles: false,
+      cancelable: false,
+      ...params,
+    };
+    evt.initEvent(event, evtParams.bubbles, evtParams.cancelable);
+    return evt;
+  };
+  window.Event.prototype = Event;
+}