Hi there,

Where can I get the installer for Fiddler version 4.6.3? I'm not able to see it anywhere in the Telerik/Fiddler site.

Thanks!

Hello


I'm using fiddler to test thick client application network request with IBOSS proxy , but seems fiddler is not able to intercept requests as IBOSS is continuously changing proxy with its background service.  Fiddler is showing The system proxy was changed, Click to reenable capturing.  

My System proxy is point to .pac file of IBOSS. 
Fiddler gateway tab is set to Use System Proxy.

I've tried several options like  changing gateway option to use IBOSS .pac file and all, but none of them worked.

any help would be appreciated.

Thanks

hi guys, i very tks all to make this software

 

i have a problem, but i dont know how to do, because i'm not a dev  :( 

 

i installed Fiddler in my VPS, i can access to download certify Fiddler,

 

but when i config proxy (IP and Port show in picture) in my fone, i just can access to my VPS address, can not access the internet, just show Connection not Private

 

show how can i config HOST: Localhost to access internet

 

tks very much, sorry for my English, i'm not good  :( 

hi, 

I'm trying to understand how to solve a problem i'm having, I hope someone with more experience can enlighten me. 

I'm developing a small app wich does some api call via WinHttp.WinHttpRequest.5.1 . I'm having trouble with a particular get request: the result i get shows some strange characters instead of accented characters. However when I use Fidler to do the seme get request (headers and everyhing are exactly identical) the result i get is correct. the response  I get on Fidler has the characters in the correct way in raw, in text view and all the other tabs except for hex view!
in the hex view tab of the response, the text that i can see in the right column is exactly showing in the same wrong way as I see it in my program.

I would like to understand how the text shown in the right column of the hex vie tab of the response is treated/transformed by Fidler so as to become the correct text shown in the other tabs. If  i could understand that, I think I could apply the same tranformation on the wrong text that I get in my app.

thanks for the help

I have Windows 8.1 installed on my computer and regularly use Fiddler to capture web traffic.

Recently, however, when I open Fiddler and it strats to capture web traffic, my Internet connectivity dies.

The error I get when I open IE is "the proxy server isn't responding." In Chrome, I get "Could not connect to proxy server" with the following error: Error code: ERR_PROXY_CONNECTION_FAILED.

Fiddler doesn't even capture any of the requests going out. The weird thing is that Fiddler was working ok just some days ago and nothing was recently installed on my system.

Searching the Internet for 5 hours, trying everything, and no effective response.

This also had no effect: http://www.telerik.com/blogs/fiddler-and-internet-explorer-11-on-windows-8-1​

It seems that the proxy server created by Fiddler is simply not attending to any traffic.

If I close Fiddler or disable the capture mode my internet come back to normal.

Uninstall and reinstall Fiddler does not solve the problem, neither restart Windows.​

Why is Fiddler having this problem, and how can I fix it?

 

Hey, it seems like my Fiddler can't capture HTTPS as I try to install the Root Certificate I get an error in the Logs.

Doesn someone know how to fix it? I already deleted the RSA key multiple times.

 

-= Fiddler Event Log =-
See http://fiddler2.com/r/?FiddlerLog for details.

22:58:45:4179 Fiddler Running...
22:58:45:4229 Windows 8+ AppContainer isolation feature detected.
22:58:53:4077 Assembly 'C:\Users\MyName\AppData\Local\Programs\Fiddler\CertMaker.dll' was not found. Using default Certificate Generator.
22:58:53:4167 /Fiddler.CertMaker> Using .‰+˜ for certificate generation; UseWildcards=True.
22:59:02:5124 /Fiddler.CertMaker> Failed to identify private key location for Root Certificate. Exception: System.Security.Cryptography.CryptographicException Der Schlüsselsatz ist nicht vorhanden.

22:59:03:1799 DefaultCertMaker: GetRootCertificate() did not find the root in the Windows TrustStore.
22:59:03:1809 /Fiddler.CertMaker> Caller was in ApartmentState: STA; hopping to Threadpool
22:59:03:1809 /Fiddler.CertMaker> Invoking CertEnroll for Subject: CN=DO_NOT_TRUST_FiddlerRoot, O=DO_NOT_TRUST, OU=Created by http://www.fiddler2.com; Thread's ApartmentState: MTA
22:59:03:4941 !Failed to CreatePFX: System.Reflection.TargetInvocationException Ein Aufrufziel hat einen Ausnahmefehler verursacht. < CertEnroll::CX509Enrollment::CreatePFX: Der Schlüsselsatz ist nicht vorhanden. 0x80090016 (-2146893802 NTE_BAD_KEYSET)
22:59:03:4941 /Fiddler.CertMaker> Finished CertEnroll for 'CN=DO_NOT_TRUST_FiddlerRoot, O=DO_NOT_TRUST, OU=Created by http://www.fiddler2.com'. Returning null
22:59:20:2703 fiddler.network.availability.change> Network Available: True

I want to use fiddler with my iPhone X on iOS 14, unfortunately when I follow all steps named here https://docs.telerik.com/fiddler-everywhere/get-started/mobile-traffic/configure-ios? , I cannot reach http://ipv4.fiddler:8866. I checked port and all named steps multiple times.

Double clicked the icon and nothing happens. (Be handy if you popped up a message about why the program is not running.) I found the .exe and ran it from a command line. This is the output.

 

09:42:25.911 > [Product information] Fiddler Everywhere 1.5.1
09:42:25.925 > [System information] win32 (Windows_NT/x64) - version 10.0.19041
09:42:25.967 > Initializing splash screen.
09:42:25.981 > Attempting to run server - 5 attempts left.
09:42:25.993 > Calculating the URL of ASP.NET Server application.
09:42:26.005 > Generating random port.
09:42:26.017 > Trying to start server at port [47329].
09:42:29.032 > Application did not receive required message for 3000ms.
09:42:29.045 > Fetching .NET Core server status.
09:42:31.071 > Error occurred while fetching .NET Core server [47329] status. Error message: connect ECONNREFUSED 127.0.0.1:47329
09:42:31.084 > Attempting to run server - 4 attempts left.
09:42:31.096 > Calculating the URL of ASP.NET Server application.
09:42:31.108 > Generating random port.
09:42:31.120 > Trying to start server at port [28688].
09:42:31.134 > Unable to start server process, closed with code: null
09:42:31.147 > Fetching .NET Core server status.
09:42:33.162 > Error occurred while fetching .NET Core server [28688] status. Error message: connect ECONNREFUSED 127.0.0.1:28688
09:42:37.132 > Application did not receive required message for 6000ms.
09:42:37.145 > Fetching .NET Core server status.
09:42:39.160 > Error occurred while fetching .NET Core server [28688] status. Error message: connect ECONNREFUSED 127.0.0.1:28688
09:42:39.181 > Attempting to run server - 3 attempts left.
09:42:39.193 > Calculating the URL of ASP.NET Server application.
09:42:39.204 > Generating random port.
09:42:39.215 > Trying to start server at port [3687].
09:42:39.230 > Unable to start server process, closed with code: null
09:42:39.243 > Fetching .NET Core server status.
09:42:41.258 > Error occurred while fetching .NET Core server [3687] status. Error message: connect ECONNREFUSED 127.0.0.1:3687

I tried everything I could find as hint:

Starting the java program with:

-DproxySet=true

-Dhttp.proxyHost=127.0.0.1

-Dhttp.proxyPort=8888

-Dhttps.proxyHost=127.0.0.1

-Dhttps.proxyPort=8888

-Djavax.net.ssl.trustStore=C:[path]\FiddlerRoot.cer;-Djavax.net.ssl.trustStorePassword=[pw]

 

FiddlerRoot.cer is imported in keystore.

capture https from all processes is active, other options see attachment.

I am starting the java program in intellij.

What am I missing?

 

Eddie

I am currently using fiddler and I wanted to get a exe file of fiddler version 5.0.20182.28034. So how would I go about doing that?