HTTP 305 Use Proxy

The requested resource must be accessed through the proxy specified by the response.

Avoid 305 in modern applications; it is deprecated because of security concerns.

httpstatus codedeprecatedproxy

Response (http)

HTTP/1.1 305 Use Proxy

305 Use Proxy is deprecated. Avoid generating it in a new application.

Common mistakes

Emitting 305 in new applications; it is deprecated for security reasons and modern browsers ignore it.

Registry reference: RFC 9110 §15.4.6

Sources