From 60e431608fb06f1adfa34e9b84d4b540aa86432e Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?P=C3=A5l=20Sletner?= <paal.sletner@gmail.com>
Date: Tue, 28 Jul 2015 13:49:20 +0200
Subject: [PATCH] fix(dropdown): add safety check for setIsOpen

- Ensure `setIsOpen` is a function, due to it optionally being falsy

Closes #4030
---
 src/dropdown/dropdown.js | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/dropdown/dropdown.js b/src/dropdown/dropdown.js
index fba27b3874..4c4c5e0669 100644
--- a/src/dropdown/dropdown.js
+++ b/src/dropdown/dropdown.js
@@ -220,7 +220,9 @@ angular.module('ui.bootstrap.dropdown', ['ui.bootstrap.position'])
       self.selectedOption = null;
     }
 
-    setIsOpen($scope, isOpen);
+    if (angular.isFunction(setIsOpen)) {
+      setIsOpen($scope, isOpen);
+    }
   });
 
   $scope.$on('$locationChangeSuccess', function() {