The HyperText Transfer Protocol (HTTP) 505 HTTP Version Not Supported response status code indicates that the HTTP version used in the request is not supported by the server.
The HyperText Transfer Protocol (HTTP) 505 HTTP Version Not Supported response status code indicates that the HTTP version used in the request is not supported by the server.
| Specification |
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| HTTP Semantics # status.505 |
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https://developer.mozilla.org/en-US/docs/Web/HTTP/Status/505