New
Last Updated: 18 Mar 2019 15:45 by Alex
Created by: Alex
Comments: 0
Type: Bug Report
0

make windows have 2 languages for keyboard, e.g. en-us, and ru-ru; 

make key shortcut to switch langs: alt+shift as usual;

select current lang: eng

run fiddler until it accumulates some traces;

select one of the trace records, click on request panel, click on response panel, notice: lang has switched to RU now.

New
Last Updated: 18 Mar 2019 11:12 by Alexander
New
Last Updated: 12 Mar 2019 13:59 by Ravindhranad
Created by: Ravindhranad
Comments: 0
Type: Bug Report
0
I have Windows UWP app called HP Smart downloaded from Microsoft Store. When I enabled HP Smart application using Win Config menu and later I have enabled HTTPS traffic. After that I have started HP Smart application. But I see traffic from app as tunnel.. but app is not receiving any responses from the servers. I have exported the capture, please help me to fix this issue. Please notice packet no.2, I am not able to get any response. But if I stop fiddler then HP Smart App is able to communicate and get the data response for this request.
New
Last Updated: 11 Mar 2019 20:25 by Eric

"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.

New
Last Updated: 25 Feb 2019 23:34 by Eric

The HTTP2 protocol has specific requirements about the characters that are valid in header names. If a server attempts to use one of these over a HTTP2 connection, the client will complain of a ERR_SPDY_PROTOCOL_ERROR.

This is particularly problematic because the problem will magically "disappear" when Fiddler is in use because Fiddler doesn't support HTTP2, and thus the problem characters are silently allowed by the browser using HTTP/1.1. https://twitter.com/ericlaw/status/1100175636595965957

Therefore, Fiddler's HTTP Protocol Violation feature should warn if a HTTPS response contains an illegal character in a HTTP header name or value.

Legal characters for names: abcdefghijklmnopqrstuvwxyz0123456789!#$%&'*+-.^_`|~

Legal characters for values '\t', '  ', 0x21 to 0x7E, and 0x80 to 0xFF.

https://tools.ietf.org/html/rfc7540#section-10.3


			
New
Last Updated: 20 Feb 2019 10:42 by ADMIN

This only occurs when double-clicking a SAZ file from Explorer when Fiddler isn't open.

v5.0.20182.28034 for .NET 4.6.1

---------------------------
Script Failure
---------------------------
Failed to load script.
 Microsoft.JScript.JScriptException: Type mismatch

   at Microsoft.JScript.Convert.CoerceT(Object value, Type t, Boolean explicitOK)

   at Fiddler.ScriptNamespace._Startup.Startup()

   at Microsoft.JScript.Vsa.BaseVsaEngine.Run()
Microsoft.JScript.JScriptException: Type mismatch

   at Microsoft.JScript.Convert.CoerceT(Object value, Type t, Boolean explicitOK)

   at Fiddler.ScriptNamespace._Startup.Startup()

   at Microsoft.JScript.Vsa.BaseVsaEngine.Run()   at Microsoft.JScript.Vsa.BaseVsaEngine.Run()

   at Fiddler.FiddlerScript._LoadScript(String sScriptFilename, Boolean bPlaySounds) in C:\JenkinsHome\jobs\FiddlerReleaseBuild\workspace\Fiddler2\Common\Application\Scripting\Scripting.cs:line 315

   at Fiddler.ScriptBase.LoadRulesScript(Boolean bPlaySounds) in C:\JenkinsHome\jobs\FiddlerReleaseBuild\workspace\Fiddler2\Common\Application\Scripting\ScriptBase.cs:line 198
---------------------------
OK   
---------------------------

 

This reproduces even when the FiddlerScript is basically empty, like so:

import Fiddler;

class Handlers
{

}

 

 

Sadly, because Fiddler's code has been obfuscated, it's difficult to see what caused this regression.

New
Last Updated: 13 Feb 2019 23:29 by Fergal
Response headers added from Fiddler-script (in reverse-proxy setup) are not sent to client. Even though the session shows them as sent. However, if I set a bpafter for that particular url it works! I Don't need to do anything else, just set the bpafter ang type 'g' to let it go. The client then see the response header.
New
Last Updated: 01 Feb 2019 16:12 by Eric
Created by: Ahsen
Comments: 2
Type: Bug Report
2

Hello,

I am getting the following error in fiddler and without Capture HTTPS CONNECTs it works, also in the Protocols I have enabled: <client>;ssl2;ssl3;tls1.0;tls1.1;tls1.2

fiddler.network.https> HTTPS handshake to <domain> (for #6) failed. System.Security.Authentication.AuthenticationException A call to SSPI failed, see inner exception. < The message received was unexpected or badly formatted

Win32 (SChannel) Native Error Code: 0x80090326

Ashen

[Edited by Telerik Staff to remove personal information and convert to bug report]

New
Last Updated: 01 Feb 2019 09:37 by sim

Some responses can not be shown in fiddler,for example,i am analysising the package of 植物大战僵尸2(pvz2) for ios.it shows "400 .net error response headers...",but other app like burpsuite can deal with it well...

 

so i've to set the proxy of iphone to "192.168.1.2:8080" and the gateway of fiddler to "127.0.0.1:8888" where burp listens, then fiddler works ok...but it's also too complicated.

 

thx for your reply...(may u have a try?)

Initial Review
Last Updated: 29 Jan 2019 23:45 by Kevin

When the PDFView Inspector is installed (v1.1.0.3, whose public override int GetOrder() method returns 500), the Response Inspectors are rendered out of order, such that the Headers/Transformer inspectors are not at the front of the list.

 

 

New
Last Updated: 02 Jan 2019 14:05 by Eric
Created by: Çağrı
Comments: 1
Type: Bug Report
0
Decrypt not working on some sites
New
Last Updated: 26 Dec 2018 03:30 by Eric

执行“bpu xxx”请求断点后,AutoTamperRequestBefore(Session oSession)方法里oSession.oFlags.ContainsKey("x-breakrequest")=false。

但是执行“bpa xxx”响应断点后,AutoTamperResponseBefore(Session oSession)方法里oSession.oFlags.ContainsKey("x-breakresponse")=true。

New
Last Updated: 17 Dec 2018 14:36 by ADMIN
Hi,
Created by: Sristi
Comments: 3
Type: Bug Report
0
Hi,
Hi I am using Progress Telerik Fiddler Web Debugger version v5.0.20182.28034 for .NET 4.5 and I am unable to capture Https service wherein I can easily capture the HTTP traffic. The application for which I am capturing traffic is an ASP Dot net Core web application having version ASP.NET and Web Tools 2017 version 15.9.1 Microsoft Visual studio Enterprise 2017. I am facing issues in capturing Https traffic in spite of installing the root certificate and changing the system proxy for each protocol (HTTP, HTTPS, FTP) settings to 127.0.0.1:8888. Kindly help me with this.
New
Last Updated: 30 Nov 2018 18:06 by Eric
日志名称:          Application
来源:            .NET Runtime
日期:            2018/11/29 11:10:13
事件 ID:         1026
任务类别:          无
级别:            错误
关键字:           经典
用户:            暂缺
计算机:           AW
描述:
应用程序: Fiddler.exe
Framework 版本: v4.0.30319
说明: 由于未经处理的异常,进程终止。
异常信息: System.AccessViolationException
   在 System.Windows.Forms.UnsafeNativeMethods.CallWindowProc(IntPtr, IntPtr, Int32, IntPtr, IntPtr)
   在 System.Windows.Forms.NativeWindow.DefWndProc(System.Windows.Forms.Message ByRef)
   在 System.Windows.Forms.ToolTip.WndProc(System.Windows.Forms.Message ByRef)
   在 System.Windows.Forms.ToolTip+ToolTipNativeWindow.WndProc(System.Windows.Forms.Message ByRef)
   在 System.Windows.Forms.NativeWindow.Callback(IntPtr, Int32, IntPtr, IntPtr)
   在 System.Windows.Forms.UnsafeNativeMethods.DispatchMessageW(MSG ByRef)
   在 System.Windows.Forms.Application+ComponentManager.System.Windows.Forms.UnsafeNativeMethods.IMsoComponentManager.FPushMessageLoop(IntPtr, Int32, Int32)
   在 System.Windows.Forms.Application+ThreadContext.RunMessageLoopInner(Int32, System.Windows.Forms.ApplicationContext)
   在 System.Windows.Forms.Application+ThreadContext.RunMessageLoop(Int32, System.Windows.Forms.ApplicationContext)
   在 Fiddler.frmViewer.‹•(System.String[])
   在 Fiddler.frmViewer.‡•(System.String[])


事件 Xml:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
  <System>
    <Provider Name=".NET Runtime" />
    <EventID Qualifiers="0">1026</EventID>
    <Level>2</Level>
    <Task>0</Task>
    <Keywords>0x80000000000000</Keywords>
    <TimeCreated SystemTime="2018-11-29T03:10:13.000000000Z" />
    <EventRecordID>217040</EventRecordID>
    <Channel>Application</Channel>
    <Computer>WYW46861.tcent.cn</Computer>
    <Security />
  </System>
  <EventData>
    <Data>应用程序: Fiddler.exe
Framework 版本: v4.0.30319
说明: 由于未经处理的异常,进程终止。
异常信息: System.AccessViolationException
   在 System.Windows.Forms.UnsafeNativeMethods.CallWindowProc(IntPtr, IntPtr, Int32, IntPtr, IntPtr)
   在 System.Windows.Forms.NativeWindow.DefWndProc(System.Windows.Forms.Message ByRef)
   在 System.Windows.Forms.ToolTip.WndProc(System.Windows.Forms.Message ByRef)
   在 System.Windows.Forms.ToolTip+ToolTipNativeWindow.WndProc(System.Windows.Forms.Message ByRef)
   在 System.Windows.Forms.NativeWindow.Callback(IntPtr, Int32, IntPtr, IntPtr)
   在 System.Windows.Forms.UnsafeNativeMethods.DispatchMessageW(MSG ByRef)
   在 System.Windows.Forms.Application+ComponentManager.System.Windows.Forms.UnsafeNativeMethods.IMsoComponentManager.FPushMessageLoop(IntPtr, Int32, Int32)
   在 System.Windows.Forms.Application+ThreadContext.RunMessageLoopInner(Int32, System.Windows.Forms.ApplicationContext)
   在 System.Windows.Forms.Application+ThreadContext.RunMessageLoop(Int32, System.Windows.Forms.ApplicationContext)
   在 Fiddler.frmViewer.‹•(System.String[])
   在 Fiddler.frmViewer.‡•(System.String[])

</Data>
  </EventData>
</Event>