From b271dd946125caea33f65eadc4388bacb4464d3d Mon Sep 17 00:00:00 2001
From: Edward <edward@roojs.com>
Date: Thu, 18 Oct 2018 13:20:51 +0800
Subject: [PATCH] Roo/Element.js

---
 Roo/Element.js | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/Roo/Element.js b/Roo/Element.js
index bfb68d48aa..069e78d7fa 100644
--- a/Roo/Element.js
+++ b/Roo/Element.js
@@ -2112,6 +2112,9 @@ if(opt.anim.isAnimated()){
             if(!this._mask){
                 this._mask = Roo.DomHelper.append(this.dom, {cls:"roo-el-mask"}, true);
             }
+            
+            this._mask.dom.className = msgCls ? "roo-el-mask " + msgCls : "roo-el-mask";
+            
             this.addClass("x-masked");
             this._mask.setDisplayed(true);
             
-- 
2.39.2