Greetings,

I'm banging my head against a wall here and would like to see if anyone here can provide any insight.

I've added this to my web.config:

I'm capturing non HTTPS traffic. Great.

All my HTTPS traffic comes through as "Tunnel To", yes, I have "Decrypt SSL" selected and the root certificate trusted.

I've put this into my protocols: <client>;ssl3;tls1.0;tls1.1;tls1.2

When I make a call, to get this error in the fiddler logs. "The client and server cannot communicate, because they do not possess a common algorithm for pipe".

This works outside of Fiddler, so Fiddler is having some sort of issue handshaking.

I ran a scan on the the first endpoint that errored out on in the logs (It can't handshake with any https endpoint):

 SSLv2      not offered (OK)
 SSLv3      not offered (OK)
 TLS 1      offered
 TLS 1.1    offered
 TLS 1.2    offered (OK)

I then did some research and added this to my script:

This had no impact.

So the $64,000 question is, why can't Fiddler handshake with any endpoints when the server can? Any advice or input would be great!

Thanks!

Hello guys,

I'm facing with decoding in Fiddler. As you can see on the picture, this request cannot be decoded and I don't know why. Anyone has an idea how to manage with that?

This morning I installed Fiddler 2 on my Vaio laptop, which has Windows 8.1 Professional installed on it. After installing it and running it for the first time I got a popup message (please see attached) that said that Windows 8.x uses something called "AppContainer" to restrict network traffic. I went to the help and it seemed to me that if I did click on the Win8Config button in Fiddler2, it would make the necessary changes, but it would also ask me which other apps I would want to open up for the same sort of network traffic. At this point I became hesitate. First, I don't completely understand the risks involved. Secondly, I do want to make it possible for Fiddler to access the network traffic it needs; I've found Fiddler to be very useful in trying to determine what's going on when things go wrong with my web applications. However I don't know which applications I would want to list in the exceptions list, and I don't know what impact it would have. I want the protection I need, but also be able to develop ASP.NET MVC and Web Forms apps, WPF, WCF and Web API, Windows Phone as well as Windows 8.x apps. I'd appreciate some direction on this, please.
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Hey guys hope to get this problem resolved, been having it a while now. Ok im just not able to capture any https traffic when using firefox. Everytime i go to a https page i get a error when fiddler is capturing traffic.

I attached the screen shot of the error i get from firefox, also a screen shot of my https options inside of fiddler. Also im using firefox 48.0, and my fiddler version is this =>  Telerik Fiddler Web Debugger (v4.6.2.32002) Built: Tuesday, July 26, 2016

Hope to hear back from you guys thanks.

I am using a Windows 8 pc that had Fiddler on it and I removed Fiddler.  After removal, I could no longer get on the Internet.  I checked the LAN Settings in Internet Options in IE 10 and found the proxy server set.  I changed the "Use a proxy server..." to Automatically detect settings and clicked Ok, but the change is not saved.  If I reinstall Fiddler and start it I can then get on the Internet.  If I close Fiddler I again cannot get on the Internet.  Is there a procedure I can use to remove Fiddler manually?
Thank you.

I am trying to replace Coldfusion generated file with my saved response.

When I replace the CFM document with the one form my drive by using the autoresponder, I get this:
Resource interpreted as Document but transferred with MIME type application/octet-stream

 
.. and than Chrome tries to download and save the file.

Any ideas? I've tried to make Chrome th edefault program to open this kind of file, but it didn't help.

 Hi,

Using Fiddler last version over Windows Server 2012 R2

I started fiddler to debug some things and closed it, know all applications try to connect to tcp 8888 for web requests, but fiddler process has exited.

a restart or an uninstall doesn't fix this problem.

Where is this information saved so that Browsers (proxy settings are already blank) and Apps try to use fiddler's proxy? how can I clear it?

Many thanks.

My fiddler has stopped working.  Is there a new file or anything I can do to fix the problem?

 

Hey,

 

I'm quite new with Fiddler and want to test what I can use it for.

I would like to configure my Proxy with an UI within Fiddler without the need to click myself through the Fiddler Options.
I already wrote a Fiddler plugin, but I can't find any method to change the Proxy Configuration through scripting.

Does anyone have an approach to solve my issue? 

 

Thank you very much in advance !

 

I'm trying to decompress post body name and value pairs that are being sent by my android handset in a gzip format.  I'm fairly new to this product so any help would be appreciated.