The scenario is different, with http you have the proxy and taget request being the same, with connect proxies they are separate requests.
In both cases however you would not set the header yourself but use the appropriate authentication method on the proxy scope of the credential provider (however I am not sure if this works preemptive). -- https://Bernd.eckenfels.net ________________________________ Von: Kaushal Kothari <kaushalkothari2...@gmail.com> Gesendet: Montag, Juli 15, 2019 1:40 PM An: httpclient-users@hc.apache.org Betreff: Re: [HttpClient 4.5.5 ]Proxy-Authorization header missing while requesting HTTPS url Does HttpClient not send the "Proxy-Authorization" header along with CONNECT request when we access the HTTPS url? As I mentioned earlier,I tried same scenario to access the HTTP request everything works fine. http://hc.apache.org/httpcomponents-client-4.5.x/examples.html Thanks, Kaushal. On Mon, Jul 15, 2019 at 3:02 PM Kaushal Kothari <kaushalkothari2...@gmail.com<mailto:kaushalkothari2...@gmail.com>> wrote: Just for clarification,I want to access the HTTPS url via proxy server and proxy server has the basic authentication set. In order to authenticate,"Proxy-Authorization Basic <encoded auth>" header should be sent along with CONNECT request but which is missing. you might have seen in last mail attached screenshot.If you are unable to see then let me know how can I send it to you again? So I created the POST request using the HttpPost class which is from the HttpClient API. HttpClient doesn't generate the "Proxy-Authorization Basic <encode_auth>" header so added the same and pass it to HttpClient to extract it from the POST request. request = new HttpPost(); //please refer screenshot in last mail for details in request object request.addHeader("Proxy-Authorization","Basic "+encodedAuth); httpResponse = httpClientBuilder.execute(request); On Fri, Jul 12, 2019 at 5:55 PM Kaushal Kothari <kaushalkothari2...@gmail.com<mailto:kaushalkothari2...@gmail.com>> wrote: Hi Team, I am trying to do POC using the HttpClient 4.5.5 library and want to access HTTPS url masked through a http proxy server with basic authentication and its failing. The authentication proxy header should be sent as part of the connect but it is not happening. I have also added the header "Proxy-Authorization Basic <encodedAuth>" to POST request as it requires and passing request object to httpclient through execute() method. Apart from that preemptive authentication is also set. [image.png] But over the network, "Proxy-Authorization Basic <encodedAuth>" header is missing. I tried same scenario to access the HTTP request everything works fine. On the fly [No "Proxy-Authorization" header]: [image.png] REQUEST: CONNECT localhost:4080 HTTP/1.1 Host: 127.0.0.1:9090<http://127.0.0.1:9090> User-Agent: Apache-HttpClient/4.5.5 (Java/1.8.0_191) RESPONSE: "HTTP/1.1 407 Proxy Authentication Required Server: Proxy Proxy-Authenticate: Basic realm="**** Authorization" Cache-control: no-cache Connection: Close Proxy-Connection: Close Content-Length: 0" Could you please help me on this issue? and let me know if you require any further information. -- Thanks, Kaushal.