From 51f33a44b5f2aa95e7470a0608c246e2ae63c124 Mon Sep 17 00:00:00 2001
From: Hyunje Alex Jun <me@noraesae.net>
Date: Tue, 18 Aug 2015 03:26:19 +0900
Subject: [PATCH] Remove unused garbage rails before append a new one.

This patch fixes #376.
---
 src/js/plugin/update-geometry.js | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/src/js/plugin/update-geometry.js b/src/js/plugin/update-geometry.js
index 8de742e..af8adb9 100644
--- a/src/js/plugin/update-geometry.js
+++ b/src/js/plugin/update-geometry.js
@@ -60,10 +60,23 @@ module.exports = function (element) {
   i.contentWidth = element.scrollWidth;
   i.contentHeight = element.scrollHeight;
 
+  var existingRails;
   if (!element.contains(i.scrollbarXRail)) {
+    existingRails = d.queryChildren(element, '.ps-scrollbar-x-rail');
+    if (existingRails.length > 0) {
+      existingRails.forEach(function (rail) {
+        d.remove(rail);
+      });
+    }
     d.appendTo(i.scrollbarXRail, element);
   }
   if (!element.contains(i.scrollbarYRail)) {
+    existingRails = d.queryChildren(element, '.ps-scrollbar-y-rail');
+    if (existingRails.length > 0) {
+      existingRails.forEach(function (rail) {
+        d.remove(rail);
+      });
+    }
     d.appendTo(i.scrollbarYRail, element);
   }