Represents a parsed Proxy-Authenticate HTTP response header.
Request authentication to access the proxy.
Example
Proxy-Authenticate: Basic
RFC2616 Specification
The Proxy-Authenticate response-header field MUST be included as part of a 407 (Proxy Authentication Required)
response.
The field value consists of a challenge that indicates the authentication scheme and parameters applicable to the
proxy for this Request-URI.
Proxy-Authenticate = "Proxy-Authenticate" ":" 1#challenge
The HTTP access authentication process is described in "HTTP Authentication: Basic and Digest Access Authentication".
Unlike WWW-Authenticate, the Proxy-Authenticate header field applies only to the current connection and SHOULD NOT
be passed on to downstream clients.
However, an intermediate proxy might need to obtain its own credentials by requesting them from the downstream
client, which in some circumstances will appear as if the proxy is forwarding the Proxy-Authenticate header field.
See Also: