It results a HTTP_PROXY_AUTHORIZATION HTTP header to my requests. Not just from fiddler to the proxy, but also from the proxy to the web.
Shouldn't it be removed by the proxy? As it says here? https://tools.ietf.org/html/rfc7235#section-4.4
"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
According to the rfc, the upstream proxy MAY relay the header, or it may not. It depends on the vendor's implementation.
Is there a workaround with FiddlerCore so I can connect a HTTP Proxy with credentials without HTTP headers?
is a list of all HTTP authentication schemes, I am aware of and all proxy authentication schemes use HTTP headers.
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