[Modify] Polish it

This commit is contained in:
sta 2021-10-27 19:40:10 +09:00
parent 7fd2a2acbb
commit 9d035733f0

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@ -1179,6 +1179,7 @@ namespace WebSocketSharp.Server
{
if (_websocket == null) {
var msg = "The current state of the connection is not Open.";
throw new InvalidOperationException (msg);
}