WebSocket_netcore45.cs - DoClose exception

[LostLogic]

DoClose can be called before datawriter is set. By calling dataWriter.Disposed() a null reference exception is triggered.

Recommend a null check before disposing and setting it to null:
if (dataWriter != null)
{
dataWriter.Dispose();
dataWriter = null;
}

Line 265

[mattqs]

Fixed in 0.9.10.