Violation of RFC 6455 - 1005 sent in a close frame
Author: HeathKnowlesCreated Sep 16, 2026Updated Sep 16, 2026
As Per RFC 6455
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.
In Websocket RPC - Line 113
- 1005 is used in a close frame.
KJ's Serialize Frame rejects it
Source: capnproto/capnproto