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- class
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1003 indicates that an endpoint is terminating the connection because it has received a type of data it cannot accept (e.g., an endpoint that understands only text data MAY send this if it receives a binary message).
1003 indicates that an endpoint is terminating the connection because it has received a type of data it cannot accept (e.g., an endpoint that understands only text data MAY send this if it receives a binary message).
1006 is a reserved value and MUST NOT be set as a status code in a Close control frame by an endpoint. It is designated for use in applications expecting a status code to indicate that the connection was closed abnormally, e.g., without sending or receiving a Close control frame.
1006 is a reserved value and MUST NOT be set as a status code in a Close control frame by an endpoint. It is designated for use in applications expecting a status code to indicate that the connection was closed abnormally, e.g., without sending or receiving a Close control frame.
1001 indicates that an endpoint is "going away", such as a server going down or a browser having navigated away from a page.
1001 indicates that an endpoint is "going away", such as a server going down or a browser having navigated away from a page.
1010 indicates that an endpoint (client) is terminating the connection because it has expected the server to negotiate one or more extension, but the server didn't return them in the response message of the WebSocket handshake. The list of extensions that are needed SHOULD appear in the /reason/ part of the Close frame. Note that this status code is not used by the server, because it can fail the WebSocket handshake instead.
1010 indicates that an endpoint (client) is terminating the connection because it has expected the server to negotiate one or more extension, but the server didn't return them in the response message of the WebSocket handshake. The list of extensions that are needed SHOULD appear in the /reason/ part of the Close frame. Note that this status code is not used by the server, because it can fail the WebSocket handshake instead.
1005 is a reserved value and MUST NOT be set as a status code in a Close control frame by an endpoint. It is designated for use in applications expecting a status code to indicate that no status code was actually present.
1005 is a reserved value and MUST NOT be set as a status code in a Close control frame by an endpoint. It is designated for use in applications expecting a status code to indicate that no status code was actually present.
1000 indicates a normal closure, meaning that the purpose for which the connection was established has been fulfilled.
1000 indicates a normal closure, meaning that the purpose for which the connection was established has been fulfilled.
1007 indicates that an endpoint is terminating the connection because it has received data within a message that was not consistent with the type of the message (e.g., non-UTF-8 data within a text message).
1007 indicates that an endpoint is terminating the connection because it has received data within a message that was not consistent with the type of the message (e.g., non-UTF-8 data within a text message).
1002 indicates that an endpoint is terminating the connection due to a protocol error.
1002 indicates that an endpoint is terminating the connection due to a protocol error.
Reserved. The specific meaning might be defined in the future.
Reserved. The specific meaning might be defined in the future.
1012 indicates that the service will be restarted.
1012 indicates that the service will be restarted.
1015 is a reserved value and MUST NOT be set as a status code in a Close control frame by an endpoint. It is designated for use in applications expecting a status code to indicate that the connection was closed due to a failure to perform a TLS handshake (e.g., the server certificate can't be verified).
1015 is a reserved value and MUST NOT be set as a status code in a Close control frame by an endpoint. It is designated for use in applications expecting a status code to indicate that the connection was closed due to a failure to perform a TLS handshake (e.g., the server certificate can't be verified).
1009 indicates that an endpoint is terminating the connection because it has received a message that is too big for it to process.
1009 indicates that an endpoint is terminating the connection because it has received a message that is too big for it to process.
1013 indicates that the service is experiencing overload
1013 indicates that the service is experiencing overload
Like HTTP 401: request lacks valid authentication credentials
Like HTTP 401: request lacks valid authentication credentials
1011 indicates that a server is terminating the connection because it encountered an unexpected condition that prevented it from fulfilling the request.
1011 indicates that a server is terminating the connection because it encountered an unexpected condition that prevented it from fulfilling the request.
1008 indicates that an endpoint is terminating the connection because it has received a message that violates its policy. This is a generic status code that can be returned when there is no other more suitable status code (e.g., 1003 or 1009) or if there is a need to hide specific details about the policy.
1008 indicates that an endpoint is terminating the connection because it has received a message that violates its policy. This is a generic status code that can be returned when there is no other more suitable status code (e.g., 1003 or 1009) or if there is a need to hide specific details about the policy.