websocket

var (
	ErrBadMethod              = errors.New("websocket: request method must be GET")
	ErrBadProtocol            = errors.New("websocket: HTTP version must be at least 1.1")
	ErrBadHost                = errors.New("websocket: missing Host header")
	ErrBadUpgrade             = errors.New("websocket: missing or invalid Upgrade header")
	ErrBadConnection          = errors.New("websocket: missing or invalid Connection header")
	ErrBadSecKey              = errors.New("websocket: missing or invalid Sec-WebSocket-Key")
	ErrBadSecVersion          = errors.New("websocket: missing Sec-WebSocket-Version")
	ErrHeaderLengthUnexpected = errors.New("websocket: header length is too large")
	ErrConnClosed             = errors.New("websocket: connection closed")
	ErrFrameTooLarge          = errors.New("websocket: frame too large")
	ErrBadHandshake           = errors.New("websocket: bad handshake")
	ErrNotWebSocket           = errors.New("websocket: request is not a websocket upgrade")
	ErrBadWebSocketKey        = errors.New("websocket: missing or invalid Sec-WebSocket-Key")
	ErrBadWebSocketVersion    = errors.New("websocket: client must use version 13")
	ErrBadWebSocketKeyLen     = errors.New("websocket: invalid Sec-WebSocket-Key length")
	ErrForbiddenOrigin        = errors.New("websocket: origin not allowed")
	ErrHijackNotSupport       = errors.New("websocket: response does not support hijacking")
	ErrUpgradeRequired        = errors.New("websocket: unsupported Sec-WebSocket-Version, only 13 is supported")
)