HTTP 1xx
101 Switching Protocols
The server is switching protocols as requested, for example upgrading to a WebSocket connection.
What causes it
- A client requested a protocol upgrade with the Upgrade header.
How to fix it
Expected during WebSocket handshakes. No action needed.
Example response
A typical raw HTTP response a client receives for a 101, with the headers this code is defined around.
HTTP/1.1 101 Switching ProtocolsKnow before your visitors do.
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