As title.  If the firewall is disabled, we are able to start Fiddler no problem.  If the firewall is enabled, I get the following popup when it tries to start.

 

What could be the issue here?

----------------------8<-------------------

 

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 composition produced a single composition error. The root cause is provided below. Review the CompositionException.Errors property for more detailed information.



1) The specified quota list is internally inconsistent with its descriptor



Resulting in: An exception occurred while trying to create an instance of type 'Telerik.NetworkConnections.NetworkConnectionsManager'.



Resulting in: Cannot activate part 'Telerik.NetworkConnections.NetworkConnectionsManager'.

Element: Telerik.NetworkConnections.NetworkConnectionsManager -->  Telerik.NetworkConnections.NetworkConnectionsManager -->  AssemblyCatalog (Assembly="Telerik.NetworkConnections, Version=0.1.2.0, Culture=neutral, PublicKeyToken=67cb91587178ac5a")



Resulting in: Cannot get export 'Telerik.NetworkConnections.NetworkConnectionsManager (ContractName="Telerik.NetworkConnections.NetworkConnectionsManager")' from part 'Telerik.NetworkConnections.NetworkConnectionsManager'.

Element: Telerik.NetworkConnections.NetworkConnectionsManager (ContractName="Telerik.NetworkConnections.NetworkConnectionsManager") -->  Telerik.NetworkConnections.NetworkConnectionsManager -->  AssemblyCatalog (Assembly="Telerik.NetworkConnections, Version=0.1.2.0, Culture=neutral, PublicKeyToken=67cb91587178ac5a")



Type: System.ComponentModel.Composition.CompositionException
Source: System.ComponentModel.Composition
   at System.ComponentModel.Composition.Hosting.CompositionServices.GetExportedValueFromComposedPart(ImportEngine engine, ComposablePart part, ExportDefinition definition)

   at System.ComponentModel.Composition.Hosting.CatalogExportProvider.GetExportedValue(CatalogPart part, ExportDefinition export, Boolean isSharedPart)

   at System.ComponentModel.Composition.Primitives.Export.get_Value()

   at System.ComponentModel.Composition.ExportServices.GetCastedExportedValue[T](Export export)

   at Fiddler.Proxy.() in C:\Jenkins\Fiddler_Windows\workspace\FiddlerCore\FiddlerCore.Shared\Common\Core\Proxy.cs:line 283

   at Fiddler.Proxy..ctor(Boolean isPrimary, ProxySettings upstreamProxySettings) in C:\Jenkins\Fiddler_Windows\workspace\FiddlerCore\FiddlerCore.Shared\Common\Core\Proxy.cs:line 210

   at Fiddler.frmViewer.‹•(String[] ˆ•) in C:\Jenkins\Fiddler_Windows\workspace\Fiddler2\Fiddler.Shared\Viewer.cs:line 3339

   at Fiddler.frmViewer.‡•(String[] ˆ•) in C:\Jenkins\Fiddler_Windows\workspace\Fiddler2\Fiddler.Shared\Viewer.cs:line 3168


Fiddler v5.0.20211.51073 (x64 AMD64) [.NET 4.0.30319.42000 on Microsoft Windows NT 10.0.19042.0]

I need keep sending command FiddlerObject.utilIssueRequest(url);  and read result for stop command and stop working when the required result is achieved

example

stop1  if Body = 170 => send FiddlerObject.utilIssueRequest(url);

stop2  if Body = 170 => send FiddlerObject.utilIssueRequest(url);

stop3  if Body = 310 => send FiddlerObject.utilIssueRequest(url);

 

I am trying to capture traffic using Fiddler from an Android app running on an emulator (I am using MuMu).  I got most of what I was trying to accomplish. I added the required cert to Android and I can see most http/https traffic fine.

 

The issue I am facing is that I cannot see requests from the app that go to http://127.0.0.1:26284. I understand that the localhost for the Android emulator is different than my machine which is running Fiddler. I did some searching and found info on Android networking (https://developer.android.com/studio/run/emulator-networking) and 10.0.0.2 but I am not sure how to use that info or if it is even relevant to my issue.

 

For what I do have working, I set the proxy in the emulator to my actual machine's address (the one running Fiddler) and set it to bypass the proxy for 127.0.0.1 (otherwise the app wouldn't work as the calls to localhost would fail).

 

My goal is to be able to see the request/responses on the emulators localhost. Is it possible via Fiddler?  Maybe adding some redirects or something like that, just so I can see the request/response? Or any other way at all? I do not have access to change the calls in the app that go to 127.0.0.1.

 

Please let me know if there is any additional info that I can give that may help. This is my first time working with emulators and proxies.

How to use it utilIssueRequest();

I'm a Fiddler Classic user and I would like to know if it's possible to read a local text file into a variable.

I will use this variable (say, 'file_contents') to replace a string in a web page with the contents of the local file. The replacement code looks like this:
How can I do that, please?

Thank you,

Alexander

FiddlerCore4 can't handle the traffic coming from xNet.dll library, how can I fix it, I really need help.

... As far as I know, any traffic going through the SOCKS5 proxy will not be logged by Fiddlercore (because Fiddler does not support traffic collection over the SOCKS proxy). So how can I fix that on Fiddlercore, I use C#.

Hi,

 

is http://ipv4.fiddler:8888/ down?

Hi,

I'm trying Fiddler with an electron application. I don't see any of the http.get requests made from my electron application to remote servers. Is there some special setup I need to do? I'm on Windows 10.

Many thanks

Why fiddler cant dycrypt traffic ?