From 94bcc841f8e9915ae2b2fdb0c0c84cf531c2bbad Mon Sep 17 00:00:00 2001
From: sta <sta.blockhead@gmail.com>
Date: Thu, 26 Jan 2017 16:03:35 +0900
Subject: [PATCH] [Modify] Polish it

---
 websocket-sharp/Ext.cs | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/websocket-sharp/Ext.cs b/websocket-sharp/Ext.cs
index fd320122..e0d5779b 100644
--- a/websocket-sharp/Ext.cs
+++ b/websocket-sharp/Ext.cs
@@ -1525,7 +1525,8 @@ namespace WebSocketSharp
       if (idx >= 10)
         return false;
 
-      return value.Substring (0, idx).IsPredefinedScheme ();
+      var schm = value.Substring (0, idx);
+      return schm.IsPredefinedScheme ();
     }
 
     /// <summary>