Indicates that the connection was terminated unexpectedly.
Indicates a general error.
Indicates an error occurred when parsing the HTTP headers during the opening handshake.
Indicates that a WebSocket frame with an unknown opcode was received.
Indicates the WebSocket is an invalid state for the given operation (such as being closed or aborted).
Indicates that an unknown native error occurred.
Indicates that the incoming request was not a valid websocket request.
Indicates that there was no native error information for the exception.
Indicates that the client requested an unsupported WebSocket subprotocol.
Indicates that the client requested an unsupported version of the WebSocket protocol.