[Modify] Add null check
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@ -136,6 +136,9 @@ namespace WebSocketSharp.Net
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var pref = new HttpListenerPrefix (uriPrefix);
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var pref = new HttpListenerPrefix (uriPrefix);
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var addr = convertToIPAddress (pref.Host);
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var addr = convertToIPAddress (pref.Host);
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if (addr == null)
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return;
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if (!addr.IsLocal ())
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if (!addr.IsLocal ())
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return;
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return;
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