Hi,  would like to add a context action that when clicked fiddler will launch an external program and send some data from the packet to that application,  still a noob and  know if that is even possible.

Thanks a lot

Hello,

Frequently, with a large (360MB FARX) autoresponder set, when Fiddler is forced to shut down unexpectedly, I get the following message (screenshot attached)

Failed to load AutoResponder rules from C:\Path\To\AutoResponder.xml. There is an unclosed literal string.

I have to re-import the rules from an exported FARX file whenever this happens to be sure I have all the rules in place.

I've seen this in other software that uses XML based configuration files

Any chance this could be made more robust? This is a killer when you're trying to run Fiddler on machine startup unattended.

Hi. Can anybody help me with simple extension. I am following fiddler's specification but even simple example wont work for me.

I did next steps:
1) Create new C# Class Library project
2) Put code from example in to the class1.cs
3) Compile Release version with Target framework.Net Framework 4.
4) Copy FiddlerTest.dll in to C:\Program Files (x86)\Fiddler2\Scripts directory and restart Fiddler.

After restart Fiddler Log tab doesn't contains my test messages. Also Extensions tab in the Fiddler option window shows only default extensions.

Fiddler version is v4.4.8.0, OS: Win 8.1 (64-bit).

Code:

Any suggestions?

Fiddler keeps on crashing with the following error

---------------------------
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.

VersionCheckFailed: Server Response Code = 502

Type: System.IO.InvalidDataException
Source: Fiddler
   at Fiddler.Updater.GetLatestVersion(Boolean includeBetaVersions, Boolean isEmergencyCall)

   at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)

   at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)

   at System.Threading.QueueUserWorkItemCallback.System.Threading.IThreadPoolWorkItem.ExecuteWorkItem()

   at System.Threading.ThreadPoolWorkQueue.Dispatch()


Fiddler v4.6.2.3 (x64 AMD64) [.NET 4.0.30319.42000 on Microsoft Windows NT 6.1.7601 Service Pack 1]
---------------------------
OK   
---------------------------

hi team, is there any way we can capture IIS w3wp process traffic in fiddler?

or traffic generating from a windows service.

I have Fiddler v4.6.2.2 on my one of the laptop which has German keyboard. To add a splitter I am using key combination shift + "=" as there is not direct key to enter "=" character. But this does not work. I have another personal laptop with US english keyboard having Fiddler v4.6.2.3 and I am able to add splitter by pressing only "=" key. 

Is there are way to add splitter for with non-english keyboard?

Although I have disabled update checks by setting the following registry keys I found earlier, Fiddler seems still to check during startup and throws an exception:

[HKEY_CURRENT_USER\Software\Microsoft\Fiddler2]
"CheckForUpdates"="False"

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Fiddler2]
"BlockUpdateCheck"="True"

---------------------------
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.

VersionCheckFailed: Server Response Code = 502

Type: System.IO.InvalidDataException
Source: Fiddler
   at Fiddler.Updater.GetLatestVersion(Boolean includeBetaVersions, Boolean isEmergencyCall)
   at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
   at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
   at System.Threading.QueueUserWorkItemCallback.System.Threading.IThreadPoolWorkItem.ExecuteWorkItem()
   at System.Threading.ThreadPoolWorkQueue.Dispatch()

Fiddler v4.6.2.3 (x64 AMD64) [.NET 4.0.30319.34209 on Microsoft Windows NT 6.3.9600.0]
---------------------------
OK  
---------------------------

Hi,

i have installed the latest fiddler version on a Windows 10 PC. After that i have configured the ssl decryption, enable tls 1.1/ 1.2 and set the winhttp proxy settings. Traffic runs through fiddler but the Windowsupdate funktion runs only if i disable the proxy settings. I see that i getting many 408 Request.

Could some one help me?

CW O

Hi All,

I have recently downloaded Fiddler version 4.6.2.2 to try and capture traffic to identify why some federated services do not seem to be working on our network.

I found that when trying to capture traffic, nothing showed up.  Some initial investigation led me to this other post on the forum:

http://www.telerik.com/forums/fiddler-not-capturing-traffic

I can confirm that I am also potentially being blocked on the client due to proxy settings which are controlled by GPO.  Our proxy service, is a cloud based solution called Websense, which I have administrator access to.

What I would like to know is what kind of exception or settings will I need to put in the proxy to allow Fiddler to collect traffic?

Cheers,

Gordon

Hi,

Just a quick question, does Fiddler impact performance on servers. To be a bit more precise, having serious issues on a setup using a 3 server NLB setup. Was wanting to run Fiddler on all 3 servers, would this have an impact on performance?

Thanks

Sam