Hello,

I tried to capture http traffic sent/received by Windows Application made with Unity.
The problem is "Fiddler blocks HTTPS POST request from Application built by Unity". The request failed while CONNECT and the application got an error.

HTTP GET, HTTPS GET, HTTP POST work and get captured. Only HTTPS POST fails.
Plus, other similar tools i.e. Charles or Burp Suite work for HTTPS POST. So I guess something wrong with Fiddler.

I uploaded source code, application, and capture file: https://dl.dropboxusercontent.com/u/4431150/FiddlerTest.zip

Please help me to capture HTTPS POST request.

thanks,
Daisuke

I am new to debugging traffic, I trusted the certificate to decrypt https traffic for all applications that use the trustlist from windows.

My target application however (or the server it connects to) doesn't work like that.

I have really no clue why, some intuitive suggestions:

 

CONNECT osu.ppy.sh:443 HTTP/1.1
Host: osu.ppy.sh
Connection: Keep-Alive

A SSLv3-compatible ClientHello handshake was found. Fiddler extracted the parameters below.

Version: 3.1 (TLS/1.0)

=================================================

POST https://osu.ppy.sh/web/osu-error.php HTTP/1.1

System.Exception: SSL failures
   at #=q7Y5kAb8wqftaFWrZY$q45uBn24xJIQP7ilUItdv7z0k=.#=qZtdRGYuyQAcJBw_dS_2w9A==(Object #=qNqO46uPZb3uKWLsfrs9esQ==)
   at [..........................]

 

So, I do have the standard configuration in fiddler which is <client>;ssl3;tls1.0 and since the server seems to be tls1.0 it should work, right?

  

Thank you so much in advance!

 

I'm trying to debug an application that uses WCF web services, and so want to monitor localhost:50000 for traffic. It seems that by default, Fiddler ignores localhost (although it captures all of the vshub requests that Visual Studio makes for diagnostics, so I'm not sure why it ignores my WCF services).

I saw this page, which describes how to modify the client application to use a different URL, but that won't work for me. I can't modify the application, and am stuck with using localhost:50000.

How do I capture this traffic? Sorry if this is a dumb question, but I'm new to Fiddler, and somewhat overwhelmed so far!

I have Fiddler installed on my local computer. I'm trying to troubleshoot an error on a server. I ran Fiddler on the server, saved off the log, then moved the .saz file onto my local computer. When I try to open it, I get a pop-up 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.

Value of 'null' is not valid for 'stream'.

Type: System.ArgumentException
Source: System.Drawing
   at System.Drawing.Image.FromStream(Stream stream, Boolean useEmbeddedColorManagement, Boolean validateImageData)

   at Fiddler.frmPrompt.GetUserString(IWin32Window wndOwner, String sTitle, String sPrompt, String sDefault, Boolean bReturnNullIfCancelled, PromptIcon piIcon) in c:\JenkinsHome\jobs\FiddlerReleaseBuild\workspace\Fiddler2\frmPrompt.cs:line 80


Fiddler v4.6.3.50306 (x64 AMD64) [.NET 4.0.30319.42000 on Microsoft Windows NT 10.0.10586.0] 
---------------------------
OK   
---------------------------

Kendo Treeview is not working IE11 but its working in Mozilla and Chrome.
Please find attached jing video and provide me solution.
http://www.screencast.com/t/NLml2mqfe.
Even i have downloaded Treeview telerik demo code from your site and
still its not working but with other browers its fine.

Maybe I am missing it, is there a way to add a custom column to the traffic log in Fiddler to indicate the date/time that a piece of traffic was captured?  I have looked in various Collections (Session Timer/Miscellaneous.)  I know I can utilize the Date field in the Response Headers, however this will not fill in anything for requests, only the responses.

Thanks,

Just updated to a new version and things immediately broke.

I just downloaded Fiddler, and when I tried to edit the rules, it asked me if I would like to download the syntax editor. I did so, installed it, and it told me it would be available next time I started Fiddler.

I restarted, but when I tried to edit the rules, I got the same message asking if I wanted to download the editor. As I'd already installed it, I said no, at which point it opened the file in Notepad.

How do I get it to use the editor? I know this is installed, as I can start it manually, I want it to be used from within Fiddler.

Thanks

hefiddler.certmaker.bc.logprivatekeys preference controls isnot enable 

 

please help me

 

my fiddler is Telerik Fiddler Web Debugger (v4.6.3.50306)

When my device and system are connected to VPN, no traffic is captured in Fiddler. Do we need to perform any additional settings in order to capture the traffic while connected to VPN.

 

Here are few configuration details : 

- "Monitor all connections" checkbox is enabled

- No traffic is captured when both mobile and desktop are connected to VPN

- Traffic is captured when only desktop is connected to VPN. But unable to connect to VPN over mobile once Fiddler is running.

 

Thanks!