Unplanned
Last Updated: 11 Feb 2020 18:24 by ADMIN
Created by: Stephan
Comments: 5
Type: Feature Request
116
HTTP/2 has been a standard since mid-2015.   All major browsers support it,  but adoption is slow because there no good debugging tools.    I want to take advantage of pipelining, server push, etc that comes with HTTP/2 which makes it easier to adopt packages like gRPC.    Having a good debugging story (both capture as well as insertion / modification) would make this more possible
Unplanned
Last Updated: 06 Feb 2020 14:05 by ADMIN
Created by: Ekaterina
Comments: 6
Type: Feature Request
2

Greetings!

For now very popular technology in rest is graphQL

We use it in our project

Could you please add graphQl in Fiddler?

Thx

Unplanned
Last Updated: 27 Jan 2020 15:53 by ADMIN

Some third-party libraries, for example HtmlAgilityPack, cannot be added as references to FiddlerScript.

The path to the assembly is added in the Tools -> Options -> Scripting -> References, but an error message that the assembly cannot be loaded appears when the method using the assembly is invoked.

Workaround: use JScript.NET as a scripting language.

Unplanned
Last Updated: 10 Dec 2019 07:27 by ADMIN

When HTTPS decryption is enabled in Fiddler, Fiddler parses the ClientHello and ServerHello HTTPS messages to determine the supported ciphers and other information, including TLS Extensions.

Unfortunately, Fiddler's HTTPSMessages parsers have a bug whereby if the extensions are larger than the available data on the stream/pipe, reading of the extensions is skipped and misleading text suggesting that no extensions were sent is shown in the Inspectors. For instance, the current version of Chrome Canary sends ~1308 bytes of TLS extensions in the ClientHello, but only 908 bytes are available at the time that the message is read. Fiddler claims that the ClientHello contained no extensions. 

Instead of performing a single .Read() call and ignoring the result if the size is less than expected, Fiddler should continue to read the stream until the promised number of bytes have been read.

 

[This issue is similar to https://crbug.com/1028602#c2, although the implementation is obviously unrelated).

Unplanned
Last Updated: 09 Dec 2019 10:41 by ADMIN

As it stands today, the "Show only traffic from" combobox in the Filters tab will show the process name, its process ID and its window title, if one is available.

However, command line applications, like dotnet.exe do not show any additional information, which can make it harder to distinguish them when there are multiple instances running.

At that point one needs to open task manager to find the process with the expected command line and figure out its process ID.

 

If the drop down were to show the process full command line, it would eliminate this extra step.

 

Thanks

 

Unplanned
Last Updated: 03 Dec 2019 21:23 by Wojciech Rajchel
Created by: Wojciech Rajchel
Comments: 2
Type: Bug Report
1

Describe the bug
After following the steps in the Capture All IIS Traffic on the Web Server Forum Post Fiddler goes into an endless loop.

image

To Reproduce
Steps to reproduce the behavior:

  1. Disable the firewall on the IIS Web Server

  2. Edit machine.config proxy settings to point to 127.0.0.1:8888

    <system.net>
        <defaultProxy>
            <proxy autoDetect="false" bypassonlocal="false" proxyaddress="http://127.0.0.1:8888" usesystemdefault="false" />
        </defaultProxy>
    </system.net>
  3. Set the WinHTTP Proxy Settings to point to 127.0.0.1:8888
    netsh winhttp set proxy 127.0.0.1:8888

  4. Change the IIS Site Bindings to an alternate Port. In this example, it is 8080
    IIS Bindings

  5. In Fiddler, execute !listen 80 in QuickExec
    Fiddler QuickExec

  6. Add Custom Rule to Forward Requests Received to WinHTTP Port. In this case, 8080

    static function OnBeforeRequest(oSession: Session) {
        
        // ...Code removed for brevity...
        if(oSession.host == "[INSERT_HOST_NAME_HERE].com:80")
        {
            oSession.host = "[INSERT_HOST_NAME_HERE].com:8080"  /// This is the Fiddler Port
        }
        
        // ...Code removed for brevity...    
    }

Expected behavior
Fiddler should capture all traffic to and from the web server. This configuration should configure Fiddler as both the normal proxy and reverse proxy simultaneously.

Desktop (please complete the following information):

  • OS: Windows Server 2012 R2
  • Browser: Any
  • Version: Any
Unplanned
Last Updated: 15 Nov 2019 07:24 by ADMIN
Created by: Jonny
Comments: 1
Type: Feature Request
2

Hi!

Is there any way to disable underlining of URL in Raw Inspector tab? It is very annoying when you try to copy part of the request but in fact open the link in the browser instead.

Unplanned
Last Updated: 14 Nov 2019 15:40 by ADMIN
Created by: Antonio
Comments: 3
Type: Bug Report
4

Fiddler crashes sometimes with this message:

No se puede obtener acceso al objeto desechado.

Nombre del objeto: 'WinHttpAutoProxy'.

Type: System.ObjectDisposedException
Source: Fiddler
   en “.Ÿœ.ƒ•(String •, String& ‘‰, String& ”) en C:\JenkinsHome\jobs\FiddlerReleaseBuild\workspace\FiddlerCore\PlatformExtensions\Windows\FiddlerCore.PlatformExtensions.Windows.Shared\WinHttpAutoProxy.cs:línea 52
   en .‚•.œ(String –, IPEndPoint& žœ) en C:\JenkinsHome\jobs\FiddlerReleaseBuild\workspace\Fiddler2\Common\Core\AutoProxy.cs:línea 142
   en Fiddler.Proxy.FindGatewayForOrigin(String sURIScheme, String sHostAndPort) en C:\JenkinsHome\jobs\FiddlerReleaseBuild\workspace\Fiddler2\Common\Core\Proxy.cs:línea 805
   en Fiddler.ServerChatter.Œ() en C:\JenkinsHome\jobs\FiddlerReleaseBuild\workspace\Fiddler2\Common\Core\ServerChatter.cs:línea 1056
   en Fiddler.ServerChatter.‹Œ(AsyncCallback ŒŒ) en C:\JenkinsHome\jobs\FiddlerReleaseBuild\workspace\Fiddler2\Common\Core\ServerChatter.cs:línea 932
   en Fiddler.Session.‘() en C:\JenkinsHome\jobs\FiddlerReleaseBuild\workspace\Fiddler2\Common\Core\Session.cs:línea 3638
   en Fiddler.Session.œ™(IAsyncResult Œ) en C:\JenkinsHome\jobs\FiddlerReleaseBuild\workspace\Fiddler2\Common\Core\Session.cs:línea 3649
   en Fiddler.ServerChatter.ŽŒ() en C:\JenkinsHome\jobs\FiddlerReleaseBuild\workspace\Fiddler2\Common\Core\ServerChatter.cs:línea 1518
   en Fiddler.ServerChatter.Œ() en C:\JenkinsHome\jobs\FiddlerReleaseBuild\workspace\Fiddler2\Common\Core\ServerChatter.cs:línea 1472
   en Fiddler.ServerChatter.‹Œ(AsyncCallback ŒŒ) en C:\JenkinsHome\jobs\FiddlerReleaseBuild\workspace\Fiddler2\Common\Core\ServerChatter.cs:línea 932
   en Fiddler.Session.‘() en C:\JenkinsHome\jobs\FiddlerReleaseBuild\workspace\Fiddler2\Common\Core\Session.cs:línea 3638
   en Fiddler.Session.(Object ) en C:\JenkinsHome\jobs\FiddlerReleaseBuild\workspace\Fiddler2\Common\Core\Session.cs:línea 3426

Fiddler v5.0.20173.50948 (x86 x86) [.NET 4.0.30319.42000 on Microsoft Windows NT 6.1.7601 Service Pack 1] 

Unplanned
Last Updated: 14 Nov 2019 15:39 by ADMIN

When right-clicking a session and going into the "Filter Now" context menu, there's a filter option at the bottom which filters by Content-Type. Very useful. However, when using Fiddler's ALT-click function on the session list, ALT-clicking on a particular session's Content-Type column value (in order to select all sessions with that same content-type), it factors in subsequent content-type parameters as a unique content-type.

For example, if back-to-back sessions for a particular website were content-types "application/json" followed by "application/json; charset=utf-8", ALT-clicking on one of their content-type entries in the Content-Type column would not select the other, since ALT-click would view them as different content-types. However, if you right-click either of them and Filter-Now by its content-type (application/json), this will filter both sessions despite the additional parameter appended onto the content-type of the latter session -- this is the more useful methodology, in my opinion.

The Filter-Now rule as it stands is the most/more useful of the two methods, since base content-type is almost always what's most important (in my experience).

Can the ALT-click functionality on Content-Type column values mirror the Filter-Now functionality in only looking at base Content-Type of a session? It would be most useful if so, especially since "charsets" can vary so widely/dynamically across sites, when trying to quickly hone-select on all sessions with application/json (or similar), for example.

Unplanned
Last Updated: 14 Nov 2019 15:28 by ADMIN
Created by: Mihai
Comments: 1
Type: Feature Request
10

Would really appreciate a proper machine based installation again, user-based installs are difficult to manage in corporate/enterprise environments & the psuedo machine install of redirecting install folder & creating new shortcuts isn't great, especially if as you mention yourself extensions wont work.

I understand the advantage of not needing admin rights to install programs, but surely most of the targeted audience for this application would either A) have admin rights, or B) be in a managed environment with deployment software in use (and potentially white-listing/App Control software preventing unauthorized apps to run anyway)

Unplanned
Last Updated: 13 Nov 2019 10:57 by ADMIN

For Fiddler to be able to recognize the Edge Chromium process.

To add the Context Menu to Auto replay from the Ribbon Bar where we see the IE Icon and by right click in the request frame to replay it.

 

The first screenshot shows where I would like to see the Edge Chromium listed under.

The second illustration, shows the Context menu Revisit In option.

 

Unplanned
Last Updated: 06 Nov 2019 01:28 by S
Scheduled for Fiddler for Windows vNext

Once a program has been "Filter now"ed via the context menu, if that filter is later deleted from down bottom, that program can no longer be "Filter Now"ed again; nothing happens.

It's as if program filtering is only given one opportunity to be "Filter Now"ed. Once that's happened, even if they filter gets deleted, the program isn't given another opportunity to be Filter Now'ed.

Unplanned
Last Updated: 31 Oct 2019 09:31 by ADMIN

"Target Any Process" feature no longer working with Chrome. It used to work but no longer works specifically with Chrome. Still works with other processes. Capturing still works with Chrome as long as I am not using the "Target Any Process" feature.

Unplanned
Last Updated: 23 Oct 2019 07:28 by ADMIN
Scheduled for Fiddler for Windows vNext

Describe the bug
"Get Started" tab resizes badly when the font size is increased, making headings like "Start", "Recent" invisible or with vertically arranged letters.

To Reproduce
Steps to reproduce the behavior:

  1. Change font size to 14 from Tools -> Options -> Appearance -> Font Size
  2. Limit the space available for the tabs by moving the vertical splitter to the right
  3. The text in the headings starts to layout vertically

Expected behavior
Get Started should look good on all available font sizes and Windows scaling settings.

Screenshots
image

  • Version 5.0.20194.41348
Unplanned
Last Updated: 18 Oct 2019 13:10 by ADMIN
Created by: David
Comments: 3
Type: Bug Report
0

Each time fiddler is updated entries in the firewall rule allowing remote connections is cleared.

 

Unplanned
Last Updated: 17 Oct 2019 08:30 by ADMIN
Scheduled for Fiddler for Windows vNext

I'm using Fiddler [Oct-03-19] v5.0.20194.41348 on Windows 7 Enterprise. The AutoResponder panel has changed from older versions and no longer displays properly if the size is narrow. For example in the attached screenshot you can see no scrollbars or dropdown. They seem to have a minimum size of 850px right now. That is way too wide. I find it very difficult to use Fiddler when the panel is too wide because then I can't see the connection entries easily. The size in the screenshot is what I normally use the panel at and it works fine in older versions.

As a workaround I reverted to older version Fiddler [Jun-04-19] v5.0.20192.25091. Also I was left with a bunch of errant StringToMatch[xx] entries, not sure what that's about.

Unplanned
Last Updated: 09 Oct 2019 06:37 by ADMIN

Consider adding System.Core.dll to the default references list. This will allow easier usage of System.Linq in the scripts.

https://groups.google.com/forum/#!topic/httpfiddler/GBmZCOVOcVI

Unplanned
Last Updated: 08 Oct 2019 14:21 by ADMIN
Currently, in Fiddler, when I'm creating a new response in AutoResponder > Create new response... when I choose "Generate file", in order to save created response, by default it is saved on Desktop. Is it possible to add setting in which user can set folder path for generated responses?
Unplanned
Last Updated: 08 Oct 2019 14:20 by ADMIN
Created by: Frank
Comments: 0
Type: Feature Request
1
Would it be possible to update the History section of the Composer so that the urls shown aren't cut off because of the column width? Resizing it is also a chore because first you have to resize the entire section and then the column.
Unplanned
Last Updated: 27 Sep 2019 07:55 by ADMIN
Created by: Imported User
Comments: 4
Type: Feature Request
3
I had request with json body, after exporting to curl, looking at the batch file, i didn't see the body part of the request
1 2