From 8227abe68605487c65c43d4bf5cf5358a1ac5604 Mon Sep 17 00:00:00 2001
From: uncelbill <billbill290@gmail.com>
Date: Sat, 26 May 2018 13:24:28 +0800
Subject: [PATCH] Optimize: Use .hasOwnProperty to check cssRules accessibility

---
 src/Elements/CssStore.js | 10 ++--------
 1 file changed, 2 insertions(+), 8 deletions(-)

diff --git a/src/Elements/CssStore.js b/src/Elements/CssStore.js
index a183494..fa80f2b 100644
--- a/src/Elements/CssStore.js
+++ b/src/Elements/CssStore.js
@@ -46,14 +46,8 @@ export default class CssStore
 
         each(document.styleSheets, (styleSheet) =>
         {
-            try 
-            {
-                // Started with version 64, Chrome does not allow cross origin script to access this property.
-                if (!styleSheet.cssRules) return;
-            } catch (e) 
-            {
-                return;
-            }
+            // Started with version 64, Chrome does not allow cross origin script to access this property.
+            if (!styleSheet.hasOwnProperty('cssRules')) return;
 
             each(styleSheet.cssRules, (cssRule) =>
             {