[Modify] Add a null check

2021-05-13 19:44:02 +09:00
parent df30241fe3
commit 967097ea9a
1 changed files with 3 additions and 0 deletions
--- a/websocket-sharp/Net/HttpListenerContext.cs
+++ b/websocket-sharp/Net/HttpListenerContext.cs
@@ -246,6 +246,9 @@ namespace WebSocketSharp.Net

    internal void Unregister ()
    {
+      if (_listener == null)
+        return;
+
      _listener.UnregisterContext (this);
    }