505HTTP Version Not Supported

HTTP version not supported

#When does this occur?

Returned when the server does not support the HTTP version used in the request.

#How to handle?

Use a supported HTTP version (typically HTTP/1.1 or HTTP/2).

#Example

HTTP Response

HTTP/1.1 505 HTTP Version Not Supported
Content-Type: application/json
Date: Tue, 10 Feb 2026 07:17:44 GMT

{
  "status": 505,
  "message": "HTTP Version Not Supported"
}

#Related Status Codes

500Internal Server Error 501Not Implemented 502Bad Gateway 503Service Unavailable 504Gateway Timeout

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