From a7ebc2dd5688202aba95664c6f09e43ccfcbf6f7 Mon Sep 17 00:00:00 2001
From: sta <sta.blockhead@gmail.com>
Date: Fri, 9 Feb 2018 22:44:53 +0900
Subject: [PATCH] [Modify] Replace it

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

diff --git a/websocket-sharp/Ext.cs b/websocket-sharp/Ext.cs
index 83514fce..481f06c0 100644
--- a/websocket-sharp/Ext.cs
+++ b/websocket-sharp/Ext.cs
@@ -875,7 +875,7 @@ namespace WebSocketSharp
           continue;
         }
 
-        if (separator.Contains (c)) {
+        if (separator.IndexOf (c) > -1) {
           if (quoted)
             continue;