From 441619b5e8b43250c6dc73a912ef2e0f851fc785 Mon Sep 17 00:00:00 2001
From: Nathan Gelman <nathanjlg@gmail.com>
Date: Thu, 18 Jul 2019 18:36:07 -0700
Subject: [PATCH] fix(Carousel): ie11 compatibility changes(#799)

This applies the CustomEvent polyfill recommended in the MDN web docs (https://developer.mozilla.org/en-US/docs/Web/API/CustomEvent/CustomEvent#Polyfill).
This also applies a simple polyfill for Object.values I found in the react-transition-group module (https://github.com/reactjs/react-transition-group/blob/9e3b2d3c09b78e755bdc837b7b38337812ede2c9/src/TransitionGroup.js#L11).

Fixes #799
---
 src/index.js    |  1 +
 src/polyfill.js | 20 ++++++++++++++++++++
 2 files changed, 21 insertions(+)
 create mode 100644 src/polyfill.js

diff --git a/src/index.js b/src/index.js
index b089eedee..f32b5a445 100644
--- a/src/index.js
+++ b/src/index.js
@@ -85,3 +85,4 @@ export UncontrolledDropdown from './UncontrolledDropdown';
 export UncontrolledTooltip from './UncontrolledTooltip';
 export Spinner from './Spinner';
 export * as Util from './utils';
+export * as Polyfill from './polyfill'
diff --git a/src/polyfill.js b/src/polyfill.js
new file mode 100644
index 000000000..3c08c3e3e
--- /dev/null
+++ b/src/polyfill.js
@@ -0,0 +1,20 @@
+(() => {
+  if ( typeof window.CustomEvent === 'function' ) return;
+
+  const CustomEvent = (( event, params ) => {
+    params = params || { bubbles: false, cancelable: false, detail: null };
+    var evt = document.createEvent( 'CustomEvent' );
+    evt.initCustomEvent( event, params.bubbles, params.cancelable, params.detail );
+    return evt;
+  });
+
+  window.CustomEvent = CustomEvent;
+})();
+
+(() => {
+  if ( typeof Object.values === 'function' ) return;
+
+  const values = ( (O) => Object.keys(O).map((key) => O[key]) );
+
+  Object.values = values;
+})();