From f9be77d0f7c2e139b43bf12521e5fda92555ecaf Mon Sep 17 00:00:00 2001
From: sta <sta.blockhead@gmail.com>
Date: Sun, 30 Aug 2020 22:36:35 +0900
Subject: [PATCH] [Modify] Replace it

---
 websocket-sharp/Net/HttpListenerPrefixCollection.cs | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/websocket-sharp/Net/HttpListenerPrefixCollection.cs b/websocket-sharp/Net/HttpListenerPrefixCollection.cs
index 66afe787..dcc54476 100644
--- a/websocket-sharp/Net/HttpListenerPrefixCollection.cs
+++ b/websocket-sharp/Net/HttpListenerPrefixCollection.cs
@@ -194,11 +194,12 @@ namespace WebSocketSharp.Net
     /// </exception>
     public bool Contains (string uriPrefix)
     {
+      if (_listener.IsDisposed)
+        throw new ObjectDisposedException (_listener.GetType ().ToString ());
+
       if (uriPrefix == null)
         throw new ArgumentNullException ("uriPrefix");
 
-      _listener.CheckDisposed ();
-
       return _prefixes.Contains (uriPrefix);
     }