This would be useful to compare a completed working trace versus a non-working trace, side by side and see what the difference in the traces are.

Hi there, what's the correct way to call:

JSON.stringify({});

JSON.parse("{}");

after calling these JSON methods, fiddler says:

Variable 'JSON' has not been declared

cheers,

David

Could you add 'search text' function to the websocket tab?

In the File > Export > Export Raw Files code, there's a "Skip non-HTTP/200 responses" option. This option is designed for dumping files (either media files or files to be replayed by the AutoResponder) to a folder.

For various reasons, clients and servers often will use Range requests for media downloads, meaning that the response code for a response might be HTTP/206 instead of HTTP/200, even if the full body is present.

To enhance the file exporter, the code should look at the Content-Range response header for a HTTP/206 response. If the header is of the format:

Content-Range: bytes 0-N/N+1

Then Fiddler should treat the response as a HTTP/200 and save the body to disk.

Lots of development software has dark themes because it is less stress on your eyes and looks cool.

Like the JSON and XML tabs, there should be a Protobuf tab that offers to decode protobuf requests and responses.

Sometimes,I need to know response json node's count,but I can only paste it into the json editor to see the quantity.

Please check the pictures in the attachment.

Hello


I have Xiaomi Redmi 3 phone. I cant install FiddlerRoot.cer. When i try to install error appear. Device can't read file. But device recognize extension of file.

I'm using Fiddler v4.6.20173.38786 (Built: Friday, September 15, 2017). When I click on the Customize Rules menu entry there is a message box that says "Unable to load Fiddler for code-completion support". After I click OK to that the Fiddler script editor will open normally.

There are many organization which do not allow admin rights and also are against installing any sniffing tools. However, fiddler is a very useful tool. It works by extracting in the installer exe with 7zip. However, thats still a trouble or unknown solution for many. It fiddler is also available as portable tool, then browser hooks may not work, rest is fine.

I get the following exception saying to quit or continue the application, if I continue capture does not begin.

Here's the content of the error:

See the end of this message for details on invoking 
just-in-time (JIT) debugging instead of this dialog box.

************** Exception Text **************
System.ComponentModel.Win32Exception (0x80004005): The parameter is incorrect
   at Telerik.NetworkConnections.Windows.WinINetPInvokes.ExecuteInternetQueryOrSetOption(String connectionName, INTERNET_PER_CONN_OPTION[] pOptions, Func`3 internetQueryOrSetOption, Action`1 success)
   at Telerik.NetworkConnections.Windows.WinINetPInvokes.SetProxySettingsForNetworkConnection(WinINetProxySettings proxySettings, String connectionName)
   at Telerik.NetworkConnections.NetworkConnectionsManager.SetProxySettingsForConnections(ProxySettings settings, IEnumerable`1 fullNames)
   at ..(ProxySettings 
) in C:\Jenkins\Fiddler_Windows\workspace\Fiddler2\Common\Core\Connectoids.cs:line 177
   at Fiddler.Proxy.Attach(Boolean ‰) in C:\Jenkins\Fiddler_Windows\workspace\Fiddler2\Common\Core\Proxy.cs:line 1084
   at Fiddler.frmViewer.actAttachProxy(Boolean ™—) in C:\Jenkins\Fiddler_Windows\workspace\Fiddler2\Viewer.cs:line 6996
   at Fiddler.frmViewer.actToggleCapture() in C:\Jenkins\Fiddler_Windows\workspace\Fiddler2\Viewer.cs:line 6951
   at System.Windows.Forms.MenuItem.OnClick(EventArgs e)
   at System.Windows.Forms.MenuItem.ShortcutClick()
   at System.Windows.Forms.Form.ProcessCmdKey(Message& msg, Keys keyData)
   at System.Windows.Forms.Control.ProcessCmdKey(Message& msg, Keys keyData)
   at System.Windows.Forms.Control.ProcessCmdKey(Message& msg, Keys keyData)
   at System.Windows.Forms.Control.PreProcessMessage(Message& msg)
   at System.Windows.Forms.Control.PreProcessControlMessageInternal(Control target, Message& msg)
   at System.Windows.Forms.Application.ThreadContext.PreTranslateMessage(MSG& msg)


************** Loaded Assemblies **************
mscorlib
    Assembly Version: 4.0.0.0
    Win32 Version: 4.7.3416.0 built by: NET472REL1LAST_B
    CodeBase: file:///C:/Windows/Microsoft.NET/Framework64/v4.0.30319/mscorlib.dll
----------------------------------------
Fiddler
    Assembly Version: 5.0.20194.41348
    Win32 Version: 5.0.20194.41348
    CodeBase: file:///C:/Users/ptgasior/AppData/Local/Programs/Fiddler/Fiddler.exe
----------------------------------------
System
    Assembly Version: 4.0.0.0
    Win32 Version: 4.7.3416.0 built by: NET472REL1LAST_B
    CodeBase: file:///C:/WINDOWS/Microsoft.Net/assembly/GAC_MSIL/System/v4.0_4.0.0.0__b77a5c561934e089/System.dll
----------------------------------------
System.Core
    Assembly Version: 4.0.0.0
    Win32 Version: 4.7.3429.0 built by: NET472REL1LAST_C
    CodeBase: file:///C:/WINDOWS/Microsoft.Net/assembly/GAC_MSIL/System.Core/v4.0_4.0.0.0__b77a5c561934e089/System.Core.dll
----------------------------------------
System.Windows.Forms
    Assembly Version: 4.0.0.0
    Win32 Version: 4.7.3324.0 built by: NET472REL1LAST_C
    CodeBase: file:///C:/WINDOWS/Microsoft.Net/assembly/GAC_MSIL/System.Windows.Forms/v4.0_4.0.0.0__b77a5c561934e089/System.Windows.Forms.dll
----------------------------------------
System.Drawing
    Assembly Version: 4.0.0.0
    Win32 Version: 4.7.3062.0 built by: NET472REL1
    CodeBase: file:///C:/WINDOWS/Microsoft.Net/assembly/GAC_MSIL/System.Drawing/v4.0_4.0.0.0__b03f5f7f11d50a3a/System.Drawing.dll
----------------------------------------
Analytics
    Assembly Version: 1.0.20182.27266
    Win32 Version: 1.0.20182.27266
    CodeBase: file:///C:/Users/ptgasior/AppData/Local/Programs/Fiddler/Analytics.DLL
----------------------------------------
System.Configuration
    Assembly Version: 4.0.0.0
    Win32 Version: 4.7.3062.0 built by: NET472REL1
    CodeBase: file:///C:/WINDOWS/Microsoft.Net/assembly/GAC_MSIL/System.Configuration/v4.0_4.0.0.0__b03f5f7f11d50a3a/System.Configuration.dll
----------------------------------------
System.Xml
    Assembly Version: 4.0.0.0
    Win32 Version: 4.7.3062.0 built by: NET472REL1
    CodeBase: file:///C:/WINDOWS/Microsoft.Net/assembly/GAC_MSIL/System.Xml/v4.0_4.0.0.0__b77a5c561934e089/System.Xml.dll
----------------------------------------
Xceed.Zip.v5.4
    Assembly Version: 5.4.13572.13590
    Win32 Version: 5.4.13572.13590
    CodeBase: file:///C:/Users/ptgasior/AppData/Local/Programs/Fiddler/Xceed.Zip.v5.4.DLL
----------------------------------------
Xceed.Compression.Formats.v5.4
    Assembly Version: 5.4.13572.13590
    Win32 Version: 5.4.13572.13590
    CodeBase: file:///C:/Users/ptgasior/AppData/Local/Programs/Fiddler/Xceed.Compression.Formats.v5.4.DLL
----------------------------------------
Xceed.FileSystem.v5.4
    Assembly Version: 5.4.13572.13590
    Win32 Version: 5.4.13572.13590
    CodeBase: file:///C:/Users/ptgasior/AppData/Local/Programs/Fiddler/Xceed.FileSystem.v5.4.DLL
----------------------------------------
Xceed.Compression.v5.4
    Assembly Version: 5.4.13572.13590
    Win32 Version: 5.4.13572.13590
    CodeBase: file:///C:/Users/ptgasior/AppData/Local/Programs/Fiddler/Xceed.Compression.v5.4.DLL
----------------------------------------
System.ComponentModel.Composition
    Assembly Version: 4.0.0.0
    Win32 Version: 4.7.3062.0
    CodeBase: file:///C:/WINDOWS/Microsoft.Net/assembly/GAC_MSIL/System.ComponentModel.Composition/v4.0_4.0.0.0__b77a5c561934e089/System.ComponentModel.Composition.dll
----------------------------------------
Telerik.NetworkConnections
    Assembly Version: 0.1.2.0
    Win32 Version: 0.1.2.0
    CodeBase: file:///C:/Users/ptgasior/AppData/Local/Programs/Fiddler/Telerik.NetworkConnections.DLL
----------------------------------------
Telerik.NetworkConnections.Windows
    Assembly Version: 0.1.2.0
    Win32 Version: 0.1.2.0
    CodeBase: file:///C:/USERS/PTGASIOR/APPDATA/LOCAL/PROGRAMS/FIDDLER/PLUGINS/NETWORKCONNECTIONS/TELERIK.NETWORKCONNECTIONS.WINDOWS.DLL
----------------------------------------
MetadataViewProxies_dbac9d84-e6bb-477e-b097-db3e376a8e1e
    Assembly Version: 0.0.0.0
    Win32 Version: 4.7.3062.0
    CodeBase: file:///C:/WINDOWS/Microsoft.Net/assembly/GAC_MSIL/System.ComponentModel.Composition/v4.0_4.0.0.0__b77a5c561934e089/System.ComponentModel.Composition.dll
----------------------------------------
Standard
    Assembly Version: 2.6.2.0
    Win32 Version: 2.6.2.0
    CodeBase: file:///C:/Users/ptgasior/AppData/Local/Programs/Fiddler/Inspectors/Standard.dll
----------------------------------------
SyntaxView
    Assembly Version: 2.6.2.0
    Win32 Version: 2.6.2.0
    CodeBase: file:///C:/Users/ptgasior/AppData/Local/Programs/Fiddler/Inspectors/SyntaxView.dll
----------------------------------------
neXpert
    Assembly Version: 1.2.0.1
    Win32 Version: 1.2.0.1
    CodeBase: file:///C:/Users/ptgasior/OneDrive%20-%20Mercy%20Online/Fiddler2/Scripts/neXpert.DLL
----------------------------------------
FiddlerOrchestra.Addon
    Assembly Version: 1.0.20194.41348
    Win32 Version: 1.0.20194.41348
    CodeBase: file:///C:/Users/ptgasior/AppData/Local/Programs/Fiddler/Scripts/FiddlerOrchestra.Addon.dll
----------------------------------------
FiddlerOrchestra.Connection
    Assembly Version: 1.0.20194.41348
    Win32 Version: 1.0.20194.41348
    CodeBase: file:///C:/Users/ptgasior/AppData/Local/Programs/Fiddler/Scripts/FiddlerOrchestra.Connection.dll
----------------------------------------
netstandard
    Assembly Version: 2.0.0.0
    Win32 Version: 4.7.3062.0
    CodeBase: file:///C:/WINDOWS/Microsoft.Net/assembly/GAC_MSIL/netstandard/v4.0_2.0.0.0__cc7b13ffcd2ddd51/netstandard.dll
----------------------------------------
FiddlerOrchestra.Protocol
    Assembly Version: 1.0.20194.41348
    Win32 Version: 1.0.20194.41348
    CodeBase: file:///C:/Users/ptgasior/AppData/Local/Programs/Fiddler/Scripts/FiddlerOrchestra.Protocol.dll
----------------------------------------
FiddlerOrchestra.Utilities
    Assembly Version: 1.0.20194.41348
    Win32 Version: 1.0.20194.41348
    CodeBase: file:///C:/Users/ptgasior/AppData/Local/Programs/Fiddler/Scripts/FiddlerOrchestra.Utilities.dll
----------------------------------------
RulesTab2
    Assembly Version: 2.6.2.0
    Win32 Version: 2.6.2.0
    CodeBase: file:///C:/Users/ptgasior/AppData/Local/Programs/Fiddler/Scripts/RulesTab2.dll
----------------------------------------
SimpleFilter
    Assembly Version: 2.6.2.0
    Win32 Version: 2.6.2.0
    CodeBase: file:///C:/Users/ptgasior/AppData/Local/Programs/Fiddler/Scripts/SimpleFilter.dll
----------------------------------------
Timeline
    Assembly Version: 2.6.0.3
    Win32 Version: 2.6.0.3
    CodeBase: file:///C:/Users/ptgasior/AppData/Local/Programs/Fiddler/Scripts/Timeline.dll
----------------------------------------
Microsoft.JScript
    Assembly Version: 10.0.0.0
    Win32 Version: 14.7.3062.0 built by: NET472REL1
    CodeBase: file:///C:/WINDOWS/Microsoft.Net/assembly/GAC_MSIL/Microsoft.JScript/v4.0_10.0.0.0__b03f5f7f11d50a3a/Microsoft.JScript.dll
----------------------------------------
System.Windows
    Assembly Version: 4.0.0.0
    Win32 Version: 4.7.3062.0
    CodeBase: file:///C:/WINDOWS/Microsoft.Net/assembly/GAC_MSIL/System.Windows/v4.0_4.0.0.0__b03f5f7f11d50a3a/System.Windows.dll
----------------------------------------
JScript Thunk Assembly
    Assembly Version: 0.0.0.0
    Win32 Version: 14.7.3062.0 built by: NET472REL1
    CodeBase: file:///C:/WINDOWS/Microsoft.Net/assembly/GAC_MSIL/Microsoft.JScript/v4.0_10.0.0.0__b03f5f7f11d50a3a/Microsoft.JScript.dll
----------------------------------------
BJ1kDtJ5
    Assembly Version: 0.0.0.0
    Win32 Version: 14.7.3062.0 built by: NET472REL1
    CodeBase: file:///C:/WINDOWS/Microsoft.Net/assembly/GAC_MSIL/Microsoft.JScript/v4.0_10.0.0.0__b03f5f7f11d50a3a/Microsoft.JScript.dll
----------------------------------------
Microsoft.GeneratedCode
    Assembly Version: 1.0.0.0
    Win32 Version: 4.7.3062.0 built by: NET472REL1
    CodeBase: file:///C:/WINDOWS/Microsoft.Net/assembly/GAC_MSIL/System.Xml/v4.0_4.0.0.0__b77a5c561934e089/System.Xml.dll
----------------------------------------
GA.Analytics.Monitor
    Assembly Version: 1.0.20182.27266
    Win32 Version: 1.0.20182.27266
    CodeBase: file:///C:/Users/ptgasior/AppData/Local/Programs/Fiddler/GA.Analytics.Monitor.DLL
----------------------------------------
System.Net.Http
    Assembly Version: 4.0.0.0
    Win32 Version: 4.7.3062.0 built by: NET472REL1
    CodeBase: file:///C:/WINDOWS/Microsoft.Net/assembly/GAC_MSIL/System.Net.Http/v4.0_4.0.0.0__b03f5f7f11d50a3a/System.Net.Http.dll
----------------------------------------
System.Security
    Assembly Version: 4.0.0.0
    Win32 Version: 4.7.3062.0 built by: NET472REL1
    CodeBase: file:///C:/WINDOWS/Microsoft.Net/assembly/GAC_MSIL/System.Security/v4.0_4.0.0.0__b03f5f7f11d50a3a/System.Security.dll
----------------------------------------
Newtonsoft.Json
    Assembly Version: 11.0.0.0
    Win32 Version: 11.0.2.21924
    CodeBase: file:///C:/Users/ptgasior/AppData/Local/Programs/Fiddler/Newtonsoft.Json.DLL
----------------------------------------
System.Numerics
    Assembly Version: 4.0.0.0
    Win32 Version: 4.7.3062.0 built by: NET472REL1
    CodeBase: file:///C:/WINDOWS/Microsoft.Net/assembly/GAC_MSIL/System.Numerics/v4.0_4.0.0.0__b77a5c561934e089/System.Numerics.dll
----------------------------------------
System.Runtime.Serialization
    Assembly Version: 4.0.0.0
    Win32 Version: 4.7.3440.0 built by: NET472REL1LAST_B
    CodeBase: file:///C:/WINDOWS/Microsoft.Net/assembly/GAC_MSIL/System.Runtime.Serialization/v4.0_4.0.0.0__b77a5c561934e089/System.Runtime.Serialization.dll
----------------------------------------
System.Data
    Assembly Version: 4.0.0.0
    Win32 Version: 4.7.3260.0 built by: NET472REL1LAST_C
    CodeBase: file:///C:/WINDOWS/Microsoft.Net/assembly/GAC_64/System.Data/v4.0_4.0.0.0__b77a5c561934e089/System.Data.dll
----------------------------------------
Microsoft.mshtml
    Assembly Version: 7.0.3300.0
    Win32 Version: 7.0.3300.0
    CodeBase: file:///C:/WINDOWS/assembly/GAC/Microsoft.mshtml/7.0.3300.0__b03f5f7f11d50a3a/Microsoft.mshtml.dll
----------------------------------------

************** JIT Debugging **************
To enable just-in-time (JIT) debugging, the .config file for this
application or computer (machine.config) must have the
jitDebugging value set in the system.windows.forms section.
The application must also be compiled with debugging
enabled.

For example:

<configuration>
    <system.windows.forms jitDebugging="true" />
</configuration>

When JIT debugging is enabled, any unhandled exception
will be sent to the JIT debugger registered on the computer
rather than be handled by this dialog box.

Microsoft telemetry calls to v10.vortex-win.data.microsoft.com bypass the filters and add noise. If my filter says only show localhost, I don't expect to see calls to Microsoft.com.

as title

v5.0.20181.14850 for .NET 4.6.1
Built: 20 March 2018

Add support for Socks5 + Socks Proxy w/ Authentication

The error messages pops up on Windows 10 version 1703.  Fiddler installs and runs with not issues on Windows 10 version 1607.

You know，jmx file can be used by jmeter. It's very useful, but fiddler cannot export the response ande request to .jmx.

So regretful.

Once I had gotten Fiddler to run (had to tell Mono to run in 32 bit mode) and I had re-created the settings.txt file, I received this error when trying to capture traffic:

Fiddler/FiddlerAttach.applescript:7:87: execution error: /bin/sh: USB,127.0.0.1,8888,on,127.0.0.1,8888,on,0,0,off,0,0,off: command not found (127)

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.

 

 

There are some Files, fiddler needs write privileges:

rm: cannot remove '/opt/fiddler/listeningProcess.txt': Permission denied
rm: cannot remove '/opt/fiddler/gsettings.txt': Permission denied
rm: cannot remove '/opt/fiddler/proxiesFromInterfaces.txt': Permission denied
...

If this file is stored with the exe file, it is not possible to install fiddler in /bin or /opt and run without root privileges.

I think it would be good to locate that file in the users home folder or in /tmp.

This url invalid "Learn more at: http://fiddler2.com/r/?p3pinfo"