From ef12ceed5c19fb6beae815c42e161839a5e47fc9 Mon Sep 17 00:00:00 2001
From: sta <sta.blockhead@gmail.com>
Date: Fri, 31 May 2019 21:15:51 +0900
Subject: [PATCH] [Modify] It is expired if equal or less than 0

---
 websocket-sharp/Net/Cookie.cs | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/websocket-sharp/Net/Cookie.cs b/websocket-sharp/Net/Cookie.cs
index 29ed1263..773d5c9e 100644
--- a/websocket-sharp/Net/Cookie.cs
+++ b/websocket-sharp/Net/Cookie.cs
@@ -338,7 +338,9 @@ namespace WebSocketSharp.Net
       }
 
       set {
-        _expires = DateTime.Now.AddSeconds ((double) value);
+        _expires = value > 0
+                   ? DateTime.Now.AddSeconds ((double) value)
+                   : DateTime.Now;
       }
     }