From 5df696be74f98a1f7595e7b1296e091f559b8bbd Mon Sep 17 00:00:00 2001
From: Anthony Cheung <anthony.cheung1@ey.com>
Date: Fri, 7 Oct 2016 12:09:09 -0400
Subject: [PATCH] fix(dropdown): added null check to .focus & .contains

---
 src/dropdown/dropdown.js | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/src/dropdown/dropdown.js b/src/dropdown/dropdown.js
index 3383c904d6..858c49b481 100644
--- a/src/dropdown/dropdown.js
+++ b/src/dropdown/dropdown.js
@@ -38,13 +38,13 @@ angular.module('ui.bootstrap.dropdown', ['ui.bootstrap.position'])
     if (evt && evt.which === 3) { return; }
 
     var toggleElement = openScope.getToggleElement();
-    if (evt && toggleElement && toggleElement[0].contains(evt.target)) {
+    if (evt && toggleElement && toggleElement[0].contains && toggleElement[0].contains(evt.target)) {
       return;
     }
 
     var dropdownElement = openScope.getDropdownElement();
     if (evt && openScope.getAutoClose() === 'outsideClick' &&
-      dropdownElement && dropdownElement[0].contains(evt.target)) {
+      dropdownElement && dropdownElement[0].contains && dropdownElement[0].contains(evt.target)) {
       return;
     }
 
@@ -186,7 +186,8 @@ angular.module('ui.bootstrap.dropdown', ['ui.bootstrap.position'])
   };
 
   scope.focusToggleElement = function() {
-    if (self.toggleElement) {
+	// Add a null check to .focus here. Some elements, such as svg in IE, may not have focus  
+    if (self.toggleElement && self.toggleElement[0].focus) {
       self.toggleElement[0].focus();
     }
   };