Hi Friends,

I am using a Chrome browser and when I turn Capturing On I notice that I am unable to see the http request data from my Restful API and my page also does not return any data. I notice that when i open another Chrome Browser the URL says Not Secure and their is a message in the body of the page that reads... Your connection is not private. I dont have a clue as to what is going on so I just titled my question as this being an issue with the proxy. Thanks for any help !

I'm inspecting a request that sends gzip data via an https post. Is there a way to decompress the body?

I have to trace incoming https requests using fiddler. As per docs, we have to use fiddler as reverse proxy for which we need to make a change in registry. 

In organization, touching registry manually is not allowed. Is there anyother way to enable the reverse proxy feature. Is there any button available in fiddler through which changes can be done automatically. 

Please suggest. I need this on urgent basis. 

Hi guys,

I'm getting the following error:

 

I have trusted the fiddler root certificate, imported it via mmc. Further more I have set fiddler to ignore certificate errors, and enabled the following protocols:

<client>;ssl2;ssl3;tls1.0;tls1.1;tls1.2

I'm using fiddler 4.5, but have also tried with version 2.

I also tried searching for this issue, but no solution seemed to present itself. Usually adding tls1.2 worked for people, but not in my case :(

Hello

I am currently trying to track any traffic of the game client, but for whatever reason it does not seem to pick up any of it.
All I have found so far was another Thread on this Forum which could not provide the details I need to get the information that I require.

According to the thread the client does not use the windows default proxy.. so what can I do in order to track the traffic?

Any help is appreciated.

~ Dinh

 

 

Hello,

 I am getting the following error in fiddler and without Capture HTTPS CONNECTs it works, also in the Protocols I have enabled: <client>;ssl2;ssl3;tls1.0;tls1.1;tls1.2

fiddler.network.https> HTTPS handshake to <domain> (for #6) failed. System.Security.Authentication.AuthenticationException A call to SSPI failed, see inner exception. < The message received was unexpected or badly formatted

Win32 (SChannel) Native Error Code: 0x80090326

 

I have a fiddler capture and a netMon capture but don't wish to post that here.

 

Thank you,

Ahsen Baig

Hi, I'm running fiddler v5.0.20182.28034 for .NET 4.6.1 on Windows 10. When I start a capture or open an archive, after a couple minutes the session window automatically clears. I then have to either recapture my sessions or re-open the archive. 

Is there a setting that is performing the automatic clearing? Seems to happen every couple minutes. 

also note I don't see this behavior on Windows Server with the same version of fiddler. 

 

thanks!

 

I knoiw a chrome plugin uses proxy for its communication

Can fiddler intercept that?

Hello, I followed the instructions, but got the below exception - 

$ mono fiddler.exe
WARNING: The Carbon driver has not been ported to 64bits, and very few parts of Windows.Forms will work properly, or at all
Stacktrace:
  at <unknown> <0xffffffff>
  at (wrapper managed-to-native) System.Windows.Forms.XplatUICarbon.CGDisplayBounds (intptr) [0x00002] in <556a6ba2c0a546f1ad2318c309ce0945>:0
  at System.Windows.Forms.XplatUICarbon.get_WorkingArea () [0x00005] in <556a6ba2c0a546f1ad2318c309ce0945>:0
  at System.Windows.Forms.XplatUICarbon.get_VirtualScreen () [0x00000] in <556a6ba2c0a546f1ad2318c309ce0945>:0
  at System.Windows.Forms.XplatUI.get_VirtualScreen () [0x00000] in <556a6ba2c0a546f1ad2318c309ce0945>:0
  at System.Windows.Forms.Screen..cctor () [0x00034] in <556a6ba2c0a546f1ad2318c309ce0945>:0
  at (wrapper runtime-invoke) object.runtime_invoke_void (object,intptr,intptr,intptr) [0x0001e] in <98fac219bd4e453693d76fda7bd96ab0>:0
  at <unknown> <0xffffffff>
  at System.Windows.Forms.Form.get_CreateParams () [0x00157] in <556a6ba2c0a546f1ad2318c309ce0945>:0
  at System.Windows.Forms.Control.CreateHandle () [0x0002a] in <556a6ba2c0a546f1ad2318c309ce0945>:0
  at System.Windows.Forms.Form.CreateHandle () [0x00000] in <556a6ba2c0a546f1ad2318c309ce0945>:0
  at System.Windows.Forms.Control.CreateControl () [0x00039] in <556a6ba2c0a546f1ad2318c309ce0945>:0
  at System.Windows.Forms.Control.SetVisibleCore (bool) [0x00057] in <556a6ba2c0a546f1ad2318c309ce0945>:0
  at System.Windows.Forms.Form.SetVisibleCore (bool) [0x00065] in <556a6ba2c0a546f1ad2318c309ce0945>:0
  at System.Windows.Forms.Control.set_Visible (bool) [0x00009] in <556a6ba2c0a546f1ad2318c309ce0945>:0
  at System.Windows.Forms.Control.Show () [0x00000] in <556a6ba2c0a546f1ad2318c309ce0945>:0
  at (wrapper remoting-invoke-with-check) System.Windows.Forms.Control.Show () [0x00031] in <556a6ba2c0a546f1ad2318c309ce0945>:0
  at Fiddler.frmViewer.‹• (string[]) [0x00081] in <09623c708fdb40a483cea147bbea7a7f>:0
  at Fiddler.frmViewer.‡• (string[]) [0x00016] in <09623c708fdb40a483cea147bbea7a7f>:0
  at (wrapper runtime-invoke) <Module>.runtime_invoke_void_object (object,intptr,intptr,intptr) [0x0004e] in <09623c708fdb40a483cea147bbea7a7f>:0
exception inside UnhandledException handler: The type initializer for 'System.Windows.Forms.Screen' threw an exception.


[ERROR] FATAL UNHANDLED EXCEPTION: System.TypeInitializationException: The type initializer for 'System.Windows.Forms.Screen' threw an exception. ---> System.NullReferenceException: Object reference not set to an instance of an object
  at (wrapper managed-to-native) System.Windows.Forms.XplatUICarbon.CGDisplayBounds(intptr)
  at System.Windows.Forms.XplatUICarbon.get_WorkingArea () [0x00005] in <556a6ba2c0a546f1ad2318c309ce0945>:0 
  at System.Windows.Forms.XplatUICarbon.get_VirtualScreen () [0x00000] in <556a6ba2c0a546f1ad2318c309ce0945>:0 
  at System.Windows.Forms.XplatUI.get_VirtualScreen () [0x00000] in <556a6ba2c0a546f1ad2318c309ce0945>:0 
  at System.Windows.Forms.Screen..cctor () [0x00034] in <556a6ba2c0a546f1ad2318c309ce0945>:0 
   --- End of inner exception stack trace ---
  at System.Windows.Forms.MessageBox+MessageBoxForm.InitFormsSize () [0x00002] in <556a6ba2c0a546f1ad2318c309ce0945>:0 
  at System.Windows.Forms.MessageBox+MessageBoxForm.RunDialog () [0x0000f] in <556a6ba2c0a546f1ad2318c309ce0945>:0 
  at (wrapper remoting-invoke-with-check) System.Windows.Forms.MessageBox+MessageBoxForm.RunDialog()
  at System.Windows.Forms.MessageBox.Show (System.Windows.Forms.IWin32Window owner, System.String text, System.String caption, System.Windows.Forms.MessageBoxButtons buttons, System.Windows.Forms.MessageBoxIcon icon) [0x0000b] in <556a6ba2c0a546f1ad2318c309ce0945>:0 
  at Fiddler.FiddlerApplication.DoNotifyUser (System.Windows.Forms.IWin32Window ownerWnd, System.String sMessage, System.String sTitle, System.Windows.Forms.MessageBoxIcon oIcon) [0x0002c] in <09623c708fdb40a483cea147bbea7a7f>:0 
  at Fiddler.FiddlerApplication.DoNotifyUser (System.String sMessage, System.String sTitle, System.Windows.Forms.MessageBoxIcon oIcon) [0x00000] in <09623c708fdb40a483cea147bbea7a7f>:0 
  at Fiddler.FiddlerApplication.ReportException (System.Exception eX, System.String sTitle, System.String sCallerMessage) [0x001a4] in <09623c708fdb40a483cea147bbea7a7f>:0 
  at Fiddler.FiddlerApplication.ReportException (System.Exception ‚) [0x00006] in <09623c708fdb40a483cea147bbea7a7f>:0 
  at Fiddler.frmViewer.• (System.Object, System.UnhandledExceptionEventArgs •) [0x00006] in <09623c708fdb40a483cea147bbea7a7f>:0 

Hey everyone, I am new to this forum. I've been capturing HTTPS traffic of my web browser without a problem. Now I want to test my command line application which makes requests to an HTTPS server. I've installed FiddlerRoot.cer on my Windows machine, browsers work fine but my app doesn't. It gives handsahke error. I guess I need to provide some certificate to my HttpClient in the code. I don't have deep experiences with certificates and certificate types. Dart language guidelines explains some points but I can't understand. As far as I see, Dart accepts PKCS#12.

 

Dart tutorial for using certificates: https://dart-lang.github.io/server/tls-ssl.html

My code question on the StackOverflow: https://stackoverflow.com/questions/54278013/certificate-error-when-analyzing-https-traffic-with-fiddler