Hello,
I've got problem with capturing web request sent from my VB.NET ( I think if C# it will be the same ).
If I sent the request without any proxy settings, Fiddler captures it.
If I sent the request with proxy settings even if it's blank settings, Fiddler doesn't captures it.

Here is VB.NET Code which sends a google search request with blank proxy settings.

    Private Sub searchGoogle(ByVal q As String)
        Dim req As HttpWebRequest = WebRequest.Create("https://www.google.com/search?q=" & q)
        req.Proxy = New WebProxy()
        Using res = req.GetResponse()
            Using resStrm = res.GetResponseStream()
                Using rdr As New StreamReader(resStrm)
                    rdr.ReadToEnd()
                End Using
            End Using
        End Using
    End Sub

Fiddler is a proxy itself. It sets itself as system proxy and that's how it gets traffic. Your code effectively changes the proxy settings and traffic does not get proxied through Fiddler any more.
Regards,
Tsviatko Yovtchev
Progress Telerik

Tsviatko Yovtchev said:Fiddler is a proxy itself. It sets itself as system proxy and that's how it gets traffic. Your code effectively changes the proxy settings and traffic does not get proxied through Fiddler any more.
Regards,
Tsviatko Yovtchev
Progress Telerik

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Thanks for your reply !

If I set HttpWebRequest.Proxy to New WebProxy(), What is the settings of proxy is being used here in my request so I can put this proxy settings into fiddler ?

Hi,

Not setting the Proxy property of the HttpWebRequest at all should do the job. This way it will use the machine proxy settings, which should point to Fiddler.

Regards,
Alexander
Progress Telerik