I use Fiddler occasionally. Some time ago it started to offer an update on startup, I agreed, it downloaded new version but ended up with warning attached as a picture.

The message says: The update is not signed by Telerik.

Do I have hacked version of Fiddler or is it the update what is trying to inject some kind of malformed code?

Hello, With recent updates of fiddler it seems as if there are issues running on Windows server core.  (See below for exception from the JIT.)  This hasn't always been the case; I have an installer for an older version that runs just fine.  Is this a known limitation?  any workarounds (besides using an outdated version that I only have access to accidentally)?

Thanks!

Mike

 

See the end of this message for details on invoking 
just-in-time (JIT) debugging instead of this dialog box.

************** Exception Text **************
System.Runtime.InteropServices.COMException (0x80040154): Class not registered (Exception from HRESULT: 0x80040154 (REGDB_E_CLASSNOTREG))
   at System.Windows.Forms.UnsafeNativeMethods.CoCreateInstance(Guid& clsid, Object punkOuter, Int32 context, Guid& iid)
   at System.Windows.Forms.WebBrowserBase.TransitionFromPassiveToLoaded()
   at System.Windows.Forms.WebBrowserBase.TransitionUpTo(AXState state)
   at System.Windows.Forms.WebBrowser.get_AxIWebBrowser2()
   at System.Windows.Forms.WebBrowser.set_AllowWebBrowserDrop(Boolean value)
   at .Š.›–() in C:\JenkinsHome\jobs\FiddlerReleaseBuild\workspace\Fiddler2\Report.cs:line 449
   at .Š..ctor() in C:\JenkinsHome\jobs\FiddlerReleaseBuild\workspace\Fiddler2\Report.cs:line 82
   at Fiddler.frmViewer.š(Object , EventArgs ) in C:\JenkinsHome\jobs\FiddlerReleaseBuild\workspace\Fiddler2\Viewer.cs:line 9741
   at System.Windows.Forms.Form.OnLoad(EventArgs e)
   at System.Windows.Forms.Form.OnCreateControl()
   at System.Windows.Forms.Control.CreateControl(Boolean fIgnoreVisible)
   at System.Windows.Forms.Control.CreateControl()
   at System.Windows.Forms.Control.WmShowWindow(Message& m)
   at System.Windows.Forms.Control.WndProc(Message& m)
   at System.Windows.Forms.Form.WmShowWindow(Message& m)
   at Fiddler.frmViewer.WndProc(Message& m) in C:\JenkinsHome\jobs\FiddlerReleaseBuild\workspace\Fiddler2\Viewer.cs:line 12356
   at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)


************** Loaded Assemblies **************
mscorlib
    Assembly Version: 4.0.0.0
    Win32 Version: 4.7.2117.0 built by: NET47REL1LAST
    CodeBase: file:///C:/Windows/Microsoft.NET/Framework64/v4.0.30319/mscorlib.dll
----------------------------------------
Fiddler
    Assembly Version: 4.6.20173.38786
    Win32 Version: 4.6.20173.38786
    CodeBase: file:///C:/Fiddler/Fiddler.exe
----------------------------------------
System
    Assembly Version: 4.0.0.0
    Win32 Version: 4.7.2114.0 built by: NET47REL1LAST
    CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System/v4.0_4.0.0.0__b77a5c561934e089/System.dll
----------------------------------------
System.Core
    Assembly Version: 4.0.0.0
    Win32 Version: 4.7.2117.0 built by: NET47REL1LAST
    CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Core/v4.0_4.0.0.0__b77a5c561934e089/System.Core.dll
----------------------------------------
System.Windows.Forms
    Assembly Version: 4.0.0.0
    Win32 Version: 4.7.2114.0 built by: NET47REL1LAST
    CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Windows.Forms/v4.0_4.0.0.0__b77a5c561934e089/System.Windows.Forms.dll
----------------------------------------
System.Drawing
    Assembly Version: 4.0.0.0
    Win32 Version: 4.7.2053.0 built by: NET47REL1
    CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Drawing/v4.0_4.0.0.0__b03f5f7f11d50a3a/System.Drawing.dll
----------------------------------------
System.Configuration
    Assembly Version: 4.0.0.0
    Win32 Version: 4.7.2053.0 built by: NET47REL1
    CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Configuration/v4.0_4.0.0.0__b03f5f7f11d50a3a/System.Configuration.dll
----------------------------------------
System.Xml
    Assembly Version: 4.0.0.0
    Win32 Version: 4.7.2102.0 built by: NET47REL1LAST
    CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Xml/v4.0_4.0.0.0__b77a5c561934e089/System.Xml.dll
----------------------------------------
Xceed.Zip.v5.4
    Assembly Version: 5.4.13572.13590
    Win32 Version: 5.4.13572.13590
    CodeBase: file:///C:/Fiddler/Xceed.Zip.v5.4.DLL
----------------------------------------
Xceed.Compression.Formats.v5.4
    Assembly Version: 5.4.13572.13590
    Win32 Version: 5.4.13572.13590
    CodeBase: file:///C:/Fiddler/Xceed.Compression.Formats.v5.4.DLL
----------------------------------------
Xceed.FileSystem.v5.4
    Assembly Version: 5.4.13572.13590
    Win32 Version: 5.4.13572.13590
    CodeBase: file:///C:/Fiddler/Xceed.FileSystem.v5.4.DLL
----------------------------------------
Xceed.Compression.v5.4
    Assembly Version: 5.4.13572.13590
    Win32 Version: 5.4.13572.13590
    CodeBase: file:///C:/Fiddler/Xceed.Compression.v5.4.DLL
----------------------------------------
Telerik.Analytics
    Assembly Version: 4.0.104.0
    Win32 Version: 4.0.104
    CodeBase: file:///C:/Fiddler/Telerik.Analytics.DLL
----------------------------------------

************** JIT Debugging **************
To enable just-in-time (JIT) debugging, the .config file for this
application or computer (machine.config) must have the
jitDebugging value set in the system.windows.forms section.
The application must also be compiled with debugging
enabled.

For example:

<configuration>
    <system.windows.forms jitDebugging="true" />
</configuration>

When JIT debugging is enabled, any unhandled exception
will be sent to the JIT debugger registered on the computer
rather than be handled by this dialog box.

Hey,

I creating a UI that has an input box to set a filter. It is then disabled and traffic should be filtered based on it. Along with filtering, any traffic that matches the filter text has a parameter added.

 

I think this should work in principle, but practice it is usually not working. It sometimes works and sometimes doesn't. Am I doing something wrong?

 

---------------------------
Uncaught Exception in Session #89
---------------------------
Fiddler has encountered an unexpected problem. If you believe this is a bug in Fiddler, please copy this message by hitting CTRL+C, and submit a bug report at http://www.telerik.com/forums/fiddler.

Cannot access a disposed object.

Object name: 'WinHttpAutoProxy'.

Type: System.ObjectDisposedException
Source: Fiddler
   at “.Ÿœ.ƒ•(String •, String& ‘‰, String& ”) in C:\JenkinsHome\jobs\FiddlerReleaseBuild\workspace\FiddlerCore\PlatformExtensions\Windows\FiddlerCore.PlatformExtensions.Windows.Shared\WinHttpAutoProxy.cs:line 52

   at .‚•.œ(String –, IPEndPoint& žœ) in C:\JenkinsHome\jobs\FiddlerReleaseBuild\workspace\Fiddler2\Common\Core\AutoProxy.cs:line 142

   at Fiddler.Proxy.FindGatewayForOrigin(String sURIScheme, String sHostAndPort) in C:\JenkinsHome\jobs\FiddlerReleaseBuild\workspace\Fiddler2\Common\Core\Proxy.cs:line 808

   at Fiddler.ServerChatter.Œ() in C:\JenkinsHome\jobs\FiddlerReleaseBuild\workspace\Fiddler2\Common\Core\ServerChatter.cs:line 1056

   at Fiddler.Session.‘() in C:\JenkinsHome\jobs\FiddlerReleaseBuild\workspace\Fiddler2\Common\Core\Session.cs:line 3725

   at Fiddler.Session.(Object ) in C:\JenkinsHome\jobs\FiddlerReleaseBuild\workspace\Fiddler2\Common\Core\Session.cs:line 3500


Fiddler v5.0.20182.28034 (x64 AMD64) [.NET 4.0.30319.42000 on Microsoft Windows NT 6.1.7601 Service Pack 1] 
---------------------------
OK   
---------------------------

I am struggling with a Windows 10 Pro version 1709 machine. When I am connecting to my ADFS form IE11 and I start capturing with fiddler, it will error.

I reset the certificate, I disabled proxy in the options and I also tried disabling WIA. When I access from Chrome, it works fine but with IE11, it does not matter what I do, it wont work. 

As a test, I created another virtual machine with same characteristics, and it works just fine. The only thing I did different is that on the machine that is not working, I did not run IE setup, on the other one that works, I did it.

 

 

I've noticed very recently that SNMP Service on Windows 10 seems to run constantly on my Windows 10 PC System. The Task Manager shows it consuming 15-20% of CPU resources on a regular basis. I want to kill the service but something on my system is probably dependent on it.

Is it Fiddler or should I look elsewhere?

Thanks for reading!

Hello,

how to configuration fiddler for capture all traffic between my APP and SQL server?? such as all queries, transactions, connections, etc. 

 

Thanks

 

Hello,

this might not be directly related to Fiddler functionality, but I've been trying to cleanly reinstall Fiddler with no luck. What I did:

- I removed the extracted `fiddler-mac` directory from my `/Applications`.
- I removed `Fiddler2` directory from my home dir.
- I uninstalled Mono.
- I installed Mono and extracted `fiddler-mac` ZIP archive again to `/Applications`.

When I run `mono Fiddler.exe`, Fiddler keeps maintaining its previous UI states (window size, column-widths, toggled options, etc.) and it doesn't even reset the "About" info, i.e. "You've run Progress Telerik Fiddler: 32 times." instead of resetting the count to 0.

Are there any Fiddler-related preference/config files stored somewhere which I may have missed to remove? (I have looked into `~/Library/Preferences` and `"~/Library/Application\ Support"` to no avail)

---------------------------
Awww, Fiddlesticks!
---------------------------
Fiddler has encountered an unexpected problem. If you believe this is a bug in Fiddler, please copy this message by hitting CTRL+C, and submit a bug report at http://www.telerik.com/forums/fiddler.

The type initializer for 'Mono.Unix.Native.Syscall' threw an exception.

Type: System.TypeInitializationException
Source: Fiddler
  at Fiddler.CONFIG.get_IsMac () [0x00007] in <616b130fa1474630b442fde0f9112534>:0
  at .•..ctor () [0x00061] in <616b130fa1474630b442fde0f9112534>:0
  at (wrapper remoting-invoke-with-check) .•:.ctor ()
  at Fiddler.AutoResponder..ctor () [0x0001c] in <616b130fa1474630b442fde0f9112534>:0
  at Fiddler.frmViewer.‹• (System.String[] ˆ•) [0x00168] in <616b130fa1474630b442fde0f9112534>:0
  at Fiddler.frmViewer.‡• (System.String[] ˆ•) [0x00016] in <616b130fa1474630b442fde0f9112534>:0

System.EntryPointNotFoundException: Mono_Posix_Syscall_get_at_fdcwd
  at (wrapper managed-to-native) Mono.Unix.Native.Syscall:get_at_fdcwd ()
  at Mono.Unix.Native.Syscall..cctor () [0x0000a] in <0216319ce51c4b67aa757f28510856aa>:0
Fiddler v4.6.20171.26113 (x86 x86) [.NET 4.0.30319.42000 on Microsoft Windows NT 6.1.7601.65536 Service Pack 1]
---------------------------
OK   
---------------------------

Hi ,
How can I decode the  WWW-Authenticate header in c#.
I have the following header :
Authorization: Negotiate TlRMTVNTUAADAAAAGAAYAIAAAAAYABgAmAAAAAYABgBYAAAADAAMAF4AAAAWABYAagAAABAAEACwAAAAFYKI4gYC8CMAAAAPffbxvOGkL8ns+08wCF8mpUcARQBSAHMAawBhAHIAbgBpAFMASwBBAFIATgBJAC0ATQBPAEIATABmpA4p85r6qgAAAAAAAAAAAAAAAAAAAADhTsbpNSiV0RYcgZydNiGaRJqQVfHQAM80vSRnAZubLRwjwE2TnLrY

I (guess), that the information presented in the "Auth" tab is the decoding of this header.
A'm I correct ?
How can I do it in C# ?
thx
Sagi