Hi,
I have nearly the same issue as in the topic "Can’t see the contents of HTTP Tunnel to port 443" discussed. But the difference is: while tunneling through fiddler, the app is not working properly. I inspected the packets with wireshark and when I am using fiddler, then the connection will be closed from client-side (fiddler) right after the "server hello" message. The last packet before the clientside FIN is the "change cipher spec, encrypted handshake message".
If I am not using fiddler as man in the middle, then everything works fine (hello, key exchange, change cipher spec, application data).
So it seems that fiddler closes the connection before all the data is exchanged. why?
With other connections (like google) fiddler works as expected, right after the connect message i can see the decrypted https traffic.
My setup is the following: I have MEmu (android emu) running on a windows machine and inside MEmu I configured my local machine on 8888 as proxy. This is working, if I google something from inside memu, everything is fine in fiddler. But if I use my app from inside memu, then the explained failure occures.
Any help will be appreciated!
Thanks!
Hi. I'm doing a C# project with FiddlerCore that modify the content of a website. The project work, I can add or modify content of the websites. The problem is when I trying to modify a site that do video stream. the video take many time to load and when im not running the project with fiddlerCore the videos load instantly. This happen with many videos stream sites but not for all, for example youtube work fine. Im checking the this happens even if FiddlerApplication_BeforeResponse dont have any code. but when I comment oSession.bBufferResponse = true; in BeforeRequest, the problem disapear.
I'm the only one with this problem ?
I'm doing like this:
static void FiddlerApplication_BeforeResponse(Session oSession)
{
}
static void FiddlerApplication_BeforeRequest(Session oSession)
{
oSession.bBufferResponse = true;
}
...
FiddlerApplication.BeforeRequest += FiddlerApplication_BeforeRequest;
FiddlerApplication.BeforeResponse += FiddlerApplication_BeforeResponse;
...
Thanks you !
New Windows 10 install. System.Security.Cryptography.CryptographicException: Access is denied.
Tried running as admin. No change.
Tried installing the cert manually via export and import however then Chrome gives me NET::ERR_CERT_AUTHORITY_INVALID.
Tried resetting cert and installing again. Same access denied error as before.
Entirely stuck here.
Hi,
Suddenly my Fiddler installation is no longer able to forward traffic to my upstream system proxy, if I use the Fiddler Gateway setting "Use System Proxy (recommended)". The proxy is manually set up in my Windows 10 Proxy settings to "http://devproxy.mycompany.net" port 8080 and works fine for e.g. requests from Chrome (without Fiddler).
In Wireshark I can see that if I use the the Fiddler Gateway setting "Manual Proxy Configuration", with "http=devproxy.mycompany.net:8080;https=devproxy.mycompany.net:8080" I can see that Fiddler forwards SSL "CONNECT devserver.mycompany.net:443" calls correctly to the proxy.
But if I use the Fiddler Gateway setting "Use System Proxy (recommended)", Wireshark shows that something, presumably Fiddler, instead tries to look up devserver.mycompany.net locally in DNS, where it cannot be found, and the CONNECT request results in a "502 Fiddler - DNS Lookup Failed" response.
Do you have any idea why Fiddler doesn't just forward the requests "raw" to the proxy in this case???
For study purposes I tried to make a simple app to learn capturing web traffic. but it didn't capture any traffic. Can you help me to figure out what is wrong here:
void Start()
{
FiddlerApplication.Prefs.SetBoolPref("fiddler.certmaker.CleanupServerCertsOnExit", true);
FiddlerCoreStartupSettings startupSettings =
new FiddlerCoreStartupSettingsBuilder()
.ListenOnPort(8888)
.DecryptSSL()
.OptimizeThreadPool()
.Build();
CertMaker.createRootCert();
FiddlerApplication.Startup(startupSettings);
FiddlerApplication.AfterSessionComplete += FiddlerApplication_AfterSessionComplete;
}
private void FiddlerApplication_AfterSessionComplete(Session oSession)
{
string reqHeaders = oSession.oRequest.headers.ToString();
var reqBody = Encoding.UTF8.GetString(oSession.RequestBody);
string respHeaders = oSession.oResponse.headers.ToString();
var respBody = Encoding.UTF8.GetString(oSession.ResponseBody);
string output = reqHeaders + "\r\n" +
(!string.IsNullOrEmpty(reqBody) ? reqBody + "\r\n" : string.Empty) +
"==========================================================" + "\r\n\r\n" +
respHeaders + "\r\n" +
(!string.IsNullOrEmpty(respBody) ? respBody + "\r\n" : string.Empty) +
"==========================================================" + "\r\n\r\n";
BeginInvoke(new Action<string>((text) =>
{
textBoxTraffic.AppendText(text);
}), output);
}
Hi good morning, please I need your support for use Telerik in Centos 7.
Will I Install Telerik in Centos 7?
Regards