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.

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)

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"

Please package Fiddler with Homebrew Cask (https://github.com/Homebrew/homebrew-cask) , or at lease permit them to distribute the binary. Currently they are concerned about distributing Fiddler (https://github.com/Homebrew/homebrew-cask/pull/41374) .

Fiddler swaps out the real proxy settings for localhost when in use. When you disconnect or close it, it restores the proxy settings. However, if the system crashes or power fails while Fiddler is in use, upon rebooting the real proxy settings are of course missing, they're still set to localhost. I would expect that if were to then run Fiddler, it would find those proxy settings again so that if I run Fiddler and close it again, my original proxy settings would be restored. Sadly this doesn't happen so in this scenario I have to manually set up my proxy settings again. Can this be implemented?