Proxy-Authorization
The credentials to authenticate a user agent to a proxy server.
Fastly reads this header from requests and writes it into requests. It is defined by an external standard.
The HTTP Proxy-Authorization
request header is usually sent after a server has responded with a 407 Proxy Authentication Required
response containing a Proxy-Authenticate
response header.
The Proxy-Authorization
header field allows the client to identify itself (or its user) to a proxy that requires authentication. Its value consists of credentials containing the authentication information of the client for the proxy and/or realm of the resource being requested.
Unlike Authorization
, the Proxy-Authorization
header field applies only to the next inbound proxy that demanded authentication using the Proxy-Authenticate
field. When multiple proxies are used in a chain, the Proxy-Authorization
header field is consumed by the first inbound proxy that was expecting to receive credentials. A proxy MAY relay the credentials from the client request to the next proxy if that is the mechanism by which the proxies cooperatively authenticate a given request.
User contributed notes
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