Sec-WebSocket-Accept
The Sec-WebSocket-Accept header is used in the websocket opening handshake. It would appear in the response headers. That is, this is header is sent from server to client to inform that server is willing to initiate a websocket connection.
| Header type | Response header |
|---|---|
| Forbidden header name | no |
Syntax
http
Sec-WebSocket-Accept: <hashed key>
Directives
- <hashed key>
-
The server takes the value of the Sec-WebSocket-Key sent in the handshake request, appends
258EAFA5-E914-47DA-95CA-C5AB0DC85B11, takes SHA-1 of the new value, and is then base64 encoded.
Examples
http
Sec-WebSocket-Accept: s3pPLMBiTxaQ9kYGzzhZRbK+xOo=
Specifications
No specification found
No specification data found for http.headers.Sec-WebSocket-Accept.
Check for problems with this page or contribute a missing spec_url to mdn/browser-compat-data. Also make sure the specification is included in w3c/browser-specs.
See also
Browser compatibility
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