I am using Fiddler Classic with one of my clients and now that Fiddler has been installed and is running, they are saying performance on our application has become worse. I have never heard this, and have heard the opposite in that that Fiddler has improved performance.

 

What reason could be causing performance to get worse once Fiddler is installed/running?

How to get the information of small program on WeChat

Hi,

On June 13, around 19:00 UTC, the Fiddler Everywhere team discovered an issue with the login backend, which prevented some of our users from logging in and using the app. The issue was resolved shortly before 21:00 UTC and the team is now monitoring the service health. 

If you have experienced "Gateway Timeout" errors while trying to login, please try again now.

If you have purchased a license during that time, but your account does not show it now, please contact us to resolve this.

Please accept our apologies for the inconvenience.

I started with:

POST https://localhost/test.aspx HTTP/1.1
Content-Type:multipart/form-data; boundary=--------------------------33ce36bc0a80f5ac

--------------------------33ce36bc0a80f5ac
Content-Disposition: form-data; name="file"; filename="41B89C87-0054-4C29-9719-61950EF84D26_md.dmp"
Content-Type: application/octet-stream

<@INCLUDE *C:\Temp\crash\DBD3C7A9-73C9-4536-968E-CE197EA65C0D_md.dmp*@>
--------------------------33ce36bc0a80f5ac
Content-Disposition: form-data; name="json"
Content-Type: application/json

{"v":5, "id":"41B89C87-0054-4C29-9719-61950EF84D26"}
--------------------------33ce36bc0a80f5ac--

But am getting:

Hi Team,

My requirement is to capture the Mobile traffic through fiddler which is installed on windows. I am unable to configure and unable to download fiddler trusted root certificate. Can you please give us a solution as soon as possible.

Thanks & Regards,

Eesufvali

Using Fiddler, is it possible to monitor the traffic of the Telegram Desktop application in order to auto-save messages/photos/videos to local storage as they are received?

 

I know that it is possible to do this using the telegram API, but for the educational purpose of studying traffic monitoring through Fiddler, I would like to explore this unusual approach.

I installed Fiddler Classic some time ago on recommendation from a friend for investigating an issue I was having which has since been resolved,. However I now have a problem where when I close (or even completely uninstall) Fiddler Classic, some apps on my PC (eg. Adobe Creative Cloud and Epic Games) can not access the internet. All other applications (eg. Chrome, Steam, Rambox, etc) still function perfectly fine. Even though this is the case, I have confirmed that the proxy settings are correct (ie. disabled) when Fiddler Classic is not running so I am not sure why this is occuring.

I no longer have a need for Fiddler Classic and I would like to remove it from my PC but this is obviously stopping me from being able to do so. Does anybody have any suggestion?

Request from a Python code only works if Fiddler is open and capturing traffic. If I turn off capturing or close Fiddler Everywhere (for Mac) request response is always 403 (Forbidden). Probably something related to certificates. Can you help me on this?

I user fiddler classic as proxy and it works well.

i try to use it to access https://link.springer.com/ iget this:

System.Security.SecurityException Failed to negotiate HTTPS connection with server.fiddler.network.https> HTTPS handshake to link.springer.com

This is because fiddler classic does not yet support tls 1.3. When will fiddler classic be updated to support tls1.3?

thanks so much!

i have installed Bouncy Castle, but cannot change the generator as Bouncy Castle