Enumeration CloseCodesConst

The connection successfully completed the purpose for which it was created.

The endpoint is going away, either because of a server failure or the browser navigating away from the page that opened the connection.

The endpoint is terminating the connection due to a protocol error.

The connection is being terminated because the endpoint received data of a type it cannot accept. (For example, a text-only endpoint received binary data.)

Reserved. A meaning might be defined in the future.

Reserved. Indicates that no status code was provided even though one was expected.

Reserved. Indicates that a connection was closed abnormally (that is, with no close frame being sent) when a status code is expected.

The endpoint is terminating the connection because a message was received that contained inconsistent data (e.g., non-UTF-8 data within a text message).

The endpoint is terminating the connection because it received a message that violates its policy. This is a generic status code, used when codes 1003 and 1009 are not suitable.

The endpoint is terminating the connection because a data frame was received that is too large.

The client is terminating the connection because it expected the server to negotiate one or more extension, but the server didn't.

The server is terminating the connection because it encountered an unexpected condition that prevented it from fulfilling the request.

The server is terminating the connection because it is restarting.

The server is terminating the connection due to a temporary condition, e.g., it is overloaded and is casting off some of its clients.

The server was acting as a gateway or proxy and received an invalid response from the upstream server. This is similar to 502 HTTP Status Code.

Reserved. Indicates that the connection was closed due to a failure to perform a TLS handshake (e.g., the server certificate can't be verified).