Hi, 

I'm having trouble getting fiddler to decrypt https traffic with the Requests library in python.  I have an application that is structured like Chrome --> iis --> python --> --> API Server.  Running my application from localhost, it captures the traffic from Chrome --> iis, I need python --> API server.  However, when I attempt the request directly from my IDE it captures python --> API server but the initial POST command to get the necessary token returns this exception:

"(Caused by SSLError(SSLError("bad handshake: Error([('SSL routines', 'tls_process_server_certificate', 'certificate verify failed')],)",),))" .  

I have added the fiddler cert and have confirmed it is in my trusted root certificates in mmc.  This request works as expected when I do NOT have fiddler running.

Any guidance would be much appreciated I have spent a lot of time searching the web for answers.

Thank you in advance,

Daniel

Fiddler 4 is logging a GStatic.com 204 when capturing an HTTPS: site traffic.  Is this normal? 

Looking into GStatic some sites identify this as an adware virus and others identify it as a Google Owned CDN server for market analysis.  I have notice in some forums that GStatic is common in references in the forum.  So I guess my question is should I be concerned that it is a virus or is the GStatic call something that is built into Telerik products for market analysis?

So I've found something that I need. 
Let's say it's a mod for the good cause. 
I had to download a main.js file and use it in the AutoResponder tab. ( like so http://prntscr.com/jevrkj )
I had to make a new rule and add those parameters in. However it does not seem to work, but it does for others. Am I doing something wrong, a setting I haven't checked? 

Hey guys,

I know there are some other posts on this. So the setup I've got which is mostly working is with:

• TLS Decrpytion
• Streaming mode enabled
• Loopback Exemption for Mail and Calendar

The odd thing is that if I close Mail (and end the process since it's a background app) and start it up, then Fiddler will capture it fine. The traffic is visible, and the app will operate correctly (sync, send etc.)

However, after some time period, the capturing will stop, and then the app will stop being able to communicate as well. Even if I stop overall Fiddler capture, this will not fix the problem, nor will ending Fiddler (cancelling it's proxy), only nuking the Mail App and restarting it corrects the issue once this occurs. If I don't run Fiddler at all, it doesn't run into this problem, and always connects fine.

Seems like this probably isn't a direct Fiddler issue, I wondered if anyone had any ideas about why it might cease functioning after a time?

Cheers,

Mike

We have been using Fiddler in order to trouble shoot issues regarding the Distribution Functionality in SAP's EPM Add-in application. This worked fine with our Windows 7 platform. However, after an upgrade to Windows 10, we are no longer getting any trace/log information after logging into the EPM Add-in application.

 

Any assistance is appreciated?

Hello ,
I installed the fiddler , trusted the certificate did all the things , but when i try to access this site " eharmony.com "  , i get this error:
" System.IO.IOException Received an unexpected EOF or 0 bytes from the transport stream. " .
Can somebody help me , i also put the tls.1.2 into protocols list .

Hi

I need send a specific request and use one parameter of its response to send another request.

Is it possible to do it? for like 100 times?

How should I start? Any example or tutorial?

hey guys i have mutiple files of commands used for fiddler
currently i copy n paste to fiddler raw > execute manually and > inspect outcome 




is there a way i can automate this process?
script?


i want it to be able to auto load my files> compose > inspect display error codes as json.

Good afternoon! 

We're looking to use Fiddler for troubleshooting on-demand and want to be able to do some automated install/uninstall pushes.  Are there any silent or unattended options that can be used with this installer?  Or perhaps an MSI package rather than the provided EXE?  And once it's installed, is there a way to automatically configure some general parameters, like disabling the autocheck for updates and preventing the autoload of the website on first run as it's inaccessible from our environment anyhow?  Thank you for your assistance!!  :)

I have installed Fiddler certificate to my Android device. I see decrypted https traffic, but there are no websocket requests.What can be the reason of this problem?