From 3606c5b9c5b288f17b29ea451470b260d4c1f327 Mon Sep 17 00:00:00 2001
From: Pierre-Denis Vanduynslager <pierre.denis.vanduynslager@gmail.com>
Date: Sat, 26 Nov 2016 03:35:49 -0500
Subject: [PATCH] Dropdown perf - on keyboard nav, find active item in the
 active dropdown rather than the whole document (#19953)

---
 js/src/dropdown.js | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)

diff --git a/js/src/dropdown.js b/js/src/dropdown.js
index 644659266f..324eef7932 100644
--- a/js/src/dropdown.js
+++ b/js/src/dropdown.js
@@ -239,11 +239,7 @@ const Dropdown = (($) => {
         return
       }
 
-      let items = $.makeArray($(Selector.VISIBLE_ITEMS))
-
-      items = items.filter((item) => {
-        return item.offsetWidth || item.offsetHeight
-      })
+      let items = $(parent).find(Selector.VISIBLE_ITEMS).get()
 
       if (!items.length) {
         return