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Fiddler Crashes on Startup always... help...

Problem signature:
  Problem Event Name:    APPCRASH
  Application Name:    Fiddler.exe
  Application Version:    5.0.20194.41348
  Application Timestamp:    5d95d558
  Fault Module Name:    KERNELBASE.dll
  Fault Module Version:    6.1.7601.23915
  Fault Module Timestamp:    59b94f2a
  Exception Code:    e0434352
  Exception Offset:    000000000001a06d
  OS Version:    6.1.7601.2.1.0.256.1
  Locale ID:    1046
  Additional Information 1:    61cb
  Additional Information 2:    61cb26cba9a9974f11aa5666ed1a9345
  Additional Information 3:    a03c
  Additional Information 4:    a03cf54e7635b40933f9c088e4cafa40

 

Boby
Telerik team
 answered on 06 Jan 2020
0 answers
130 views

class handlers

{

    static var oTimer: System.Windows.Forms.Timer = new Timer();
    public static ToolsAction("Request by Timer")
    function doIt()
    {
        oTimer = new Timer();
        oTimer.add_Tick(OnTimer);
        oTimer.Interval = 5000;
        oTimer.Start();
    }

    public static ToolsAction("Stop Timer")
    function stopIt()
    { 
        oTimer.Stop();
    }

        
    public static function OnTimer(sender: Object, ea: EventArgs)
    {
        var s = "GET blah blah";
        try{ 
            FiddlerObject.utilIssueRequest(s); 
        } 
        catch(e){ 
            MessageBox.Show("send failed" + e.ToString()); 
        }
    }

    static function OnBeforeResponse(oSession: Session) {

        if (oSession.utilFindInResponse("request start", false)>-1)
        {
            doIt();
        }

        if (oSession.utilFindInResponse("request stop", false)>-1)
        {
            stopIt();
        }

}

}

 

"Tool" -> "Request by timer" and "Stop Timer" works fine.

stopit(); wokrs fine too in if statement.

But doIt(); doesn't work in if statement.

I'm not good at computer thing and English too.

I can't figure out what's wrong. 

Please help and thank you in advance.

jaemin
Top achievements
Rank 1
 asked on 05 Jan 2020
3 answers
111 views
When the fiddler is running, everything is fine, but the data is wrong.
When the fiddler is off, then collect the http (s) data by chrome in the "network" section, the data is correct.
I need to know the cause.
Can someone help me ???
Blue
Top achievements
Rank 1
 answered on 03 Jan 2020
1 answer
242 views

I would like to download FiddlerCore to get up to speed nohow I can use it in my applications. When I go to the downloads page as stated on the downloads page I cannot find the link forFiddlerCore. I have Attached my screen shot for assistance.

 

Thanks

Alex.

 

Patrick | Technical Support Engineer, Senior
Telerik team
 answered on 02 Jan 2020
3 answers
664 views
Hi, when I'm trying to run this little program I get this error after line  Fiddler.FiddlerApplication.Startup(startupSettings);
{"Could not load file or assembly 'Telerik.NetworkConnections, Version=0.1.1.0, Culture=neutral, PublicKeyToken=67cb91587178ac5a'.
System.IO.FileNotFoundException

my program code (console application, in main class I use Http_proxy.Start();

public static class Http_proxy
    {
        public static void Start()
        {
            FiddlerCoreStartupSettings startupSettings =
                new FiddlerCoreStartupSettingsBuilder()
                    .ListenOnPort(0)
                    .RegisterAsSystemProxy()
                    .DecryptSSL()
                    .Build();
            Fiddler.FiddlerApplication.Startup(startupSettings);
            FiddlerApplication.AfterSessionComplete += Http_proxy.AfterSessionComplete;
        }
        public static void Stop()
        {
            if (FiddlerApplication.IsStarted()) Fiddler.FiddlerApplication.Shutdown();
        }
        private static void AfterSessionComplete(Session session)
        {
            session.bBufferResponse = true;
            if (session.fullUrl.Contains("nevermind"))
            {
                string b = session.GetRequestBodyAsString();
                File.WriteAllText(@"..\a.txt", b);
            }
        }
        public static bool InstallCertificate()
        {
            try
            {
                if (!CertMaker.rootCertExists() && !CertMaker.createRootCert())
                {
                    throw new Exception("Could not create Root Certificate!");
                }
                if (!CertMaker.rootCertIsTrusted() && !CertMaker.trustRootCert())
                {
                    throw new Exception("Could not find valid Root Certificate for Fiddler!");
                }
                return true;
            }
            catch (Exception ex)
            {
                Console.Write(ex.ToString() + "  |  " + "Certificate Installer Error!");
                return false;
            }
        }
        public static bool UninstallCertificate()
        {
            if (CertMaker.rootCertExists())
            {
                if (!CertMaker.removeFiddlerGeneratedCerts(true))
                    return false;
            }
            return true;
        }
    }
}

 

Some time ago I created another small app using Fiddler.FiddlerApplication.Startup(8888, true, true); and everything worked fine, now I lost it and upgraded Visual Studio Community 2015 to Community 2019 and nothing want to work. Any suggestions?

Boby
Telerik team
 answered on 02 Jan 2020
1 answer
519 views

Just wondering what's the logic behind it, as most programs use %ProgramFiles%.

If you have an ideology against central folders, why not supporting a portable version?

Kammen
Telerik team
 answered on 02 Jan 2020
3 answers
435 views

When launching Fiddler "Automatic" Breakpoints are always set to "Disabled".

How can they be enabled to either "Before Responses" or "After Responses by default?

Boby
Telerik team
 answered on 02 Jan 2020
2 answers
1.2K+ views
As the question, please help me how to backup settings & restore it in another computer. Thanks.
Lior
Top achievements
Rank 1
 answered on 28 Dec 2019
1 answer
516 views
After starting the program, a subfolder Fiddler2 is created in the Documents folder. Is it possible to adjust its location, move to a higher level in the home folder, for example?
Lior
Top achievements
Rank 1
 answered on 28 Dec 2019
2 answers
2.2K+ views
As far as I can see Fiddler stores its settings, scripts and captures in a folder in the C:\User directory.

Now assume I installed Fiddler v5 in a folder like

D:\tools\proxy\Fiddler\

How can I tell Fiddler to store the settings in the future in a subfolder like

D:\tools\proxy\Fiddler\mysettings\

or in a completely different folder like:

D:\tools\projecttest\Fiddlersettings\

I did not found a corresponding option in Fiddler to  re-define this setting folder.
How does this work?

Ben
Lior
Top achievements
Rank 1
 answered on 28 Dec 2019
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