From d48f25a48d479cc4c87e0feaa0ad995449ec1876 Mon Sep 17 00:00:00 2001
From: Alex Juarez <couatli@gmail.com>
Date: Wed, 20 May 2015 21:17:04 -0700
Subject: [PATCH] fix(common.js): this can error if parents[i] is undefined

---
 src/common.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/common.js b/src/common.js
index a85ff9e73..161955653 100644
--- a/src/common.js
+++ b/src/common.js
@@ -96,7 +96,7 @@ function inheritParams(currentParams, newParams, $current, $to) {
   var parents = ancestors($current, $to), parentParams, inherited = {}, inheritList = [];
 
   for (var i in parents) {
-    if (!parents[i].params) continue;
+    if (!parents[i] || !parents[i].params) continue;
     parentParams = objectKeys(parents[i].params);
     if (!parentParams.length) continue;