I'm trying to set up environment where I can display HTTP/HTTPS traffic coming from/to the android device on my Windows 10 machine. I followed this manual for Fiddler Everywhere https://docs.telerik.com/fiddler-everywhere/traffic/configure-android However I can't seem to be able to access the Proxy from my phone.

Root certificate has been installed/trusted.

I enabled the proxy in "Settings"

Live Traffic is enabled and shows all requests for that Win10 machine.

IP address of the wireless interface of the Windows device is 192.168.8.110

I'm using Samsung S21 with Android 13.
I then set up this IP and 8866 port as proxy for my WiFi connection on the Android phone and navigated to ipv4.fiddler:8866 But it constantly responds with ERR_TIMED_OUT and keeps reloading. Also nothing from the mobile device is visible in Fiddler Live Traffic on Windows machine. I wasn't able to find a related topic on the forum. Any help would be greatly appreciated.

 

Great, I installed the fiddler update. Now I can no longer decrypt https client traffic while debugging.... 

"The underlying connection was closed: Could not establish trust relationship for the SSL/TLS secure channel"

 

 I had the fiddler cert trusted before and didn't get a prompt to trust it when enabling https decryption.

 

So I uninstalled Fiddler and removed the certs.  Then reinstalled and I get the prompt but my apps are still faiing....

The underlying connection was closed: Could not establish trust relationship for the SSL/TLS secure channel

 

  

 

 

HI team.

we are using Fiddler core and wanted to have a small UI for it. wanted to check if Fiddler Core works with MAUI for mac and if there is some documentation. currently we are able to run it is net 6 but not in MAUI

also if there is any other technology that can be used apart from MAUI then it would also help

 

Thanks

Chetan

Adobe

I searched the web and found the .NET 'File.Open' instruction, but I have not been able to successfully use it in my script.

I am looking for something like this...

var content = File.Open('path/filename.txt');

This code is just an example, it does not work.

Thank you!

Alex

Hi everyone ! Can please somebody help me with a fiddler - script , to compile me a fiddler script from zero to replace 2 Json values on a website before-request ! i tryed with this : 

 

  static function OnBeforeRequest(oSession: Session)

 if(oSession.HostnameIs("mywebsite") && oSession.HTTPMethodIs("POST") && oSession.uriContains("/some.web/data/Entry/Validate"))           
    
        {  
  oSession.utilDecodeResponse();  
  var body = oSession.GetResponseBodyAsString();



 try {
                var dataJson = Fiddler.WebFormats.JSON.JsonDecode(body).JSONObject;
            
            
                var Co = (null);   // HERE I MUST REPLACE WITH (null)
                var Cap = MY-VALUE-HERE-LETTERS-AND-NUMBERS;  //EXAMPLE: FATH45786544565342U7  
            
                dataJson["Dispo"]["{}"]["Ben"]["Co"] = Co;
                dataJson["Dispo"]["{}"]["Ben"]["Cap"] = Cap;
          
            }
            catch(e) {
                FiddlerObject.log(e);
            }
        
                    
            body = Fiddler.WebFormats.JSON.JsonEncode(dataJson);       
          

}


///// i want to place the code in fiddler-script JS ////  please help me with a solution ! i am also ready to pay in btc for who want to help me ! thank you in advice !

I am using the following code to serve a local HTML file when the URL of a web request contains a certain keyword.


Instead of a local file, is it possible for Fiddler to reply with a web page hosted on a remote server? Something like this...


Thank you!

Alex

The live traffic pane is showing a spinning animation as if it is loading something. It keeps going like this in a loop.

Please see attached image.

I use fiddler can capture most of the traffic , such as:

https://freetestdata.com/wp-content/uploads/2022/02/Free_Test_Data_7MB_MP4.mp4

in the console of the chrome, I can see the media size , and can capture it in fiddler;

but I can't capture the video in web.telegram.org/z/ or  web.telegram.org/k/ , in the console of chrome it shows serviceworker and I can't see the size of the media; The video can play , why can't capture it? How does the video stream send request and come back from the site?

Can I capture the video in telegram ? or save the video stream?

Hello,

where can I find all the possible prefs for Fiddler? I found a lot in a random ebook, but is there a documentation or source code where a list of all of them can be found? E.g. I know there's fiddler.config.path.captures, but is there one for the  CustomRules.js or just the whole Documents folder in general?

Regards

Any plans to add HTTP/2 support to Fiddler?