Last Updated: 07 Dec 2021 10:52 by ADMIN
Created on: 12 Jun 2020 15:16
Type: Bug Report
Error window at launch may be hard to find


When i started latest version of Fiddler, i started to get an error window at launch saying "Failed to register Fiddler as the system proxy"

But as usual, i have plenty opened windows at the same time.

While i'm doing a search for a solution, Fiddler and the error window goes to background.

But when i come back to Fiddler, i'm unable to exit the application.

The error windows is not referenced in the taskbar and it's a pain to find it.

The best solution is to go to desktop "Win+D" and focus on Fiddler to get the splash screen and the error window visible again.

Once the error window closed, i can close Fiddler.

The issue is the error window staying on background and not having an entry in taskbar.

Nick Iliev
Posted on: 07 Dec 2021 10:48

Hey everyone,


An improved UX that solves that issue will be released with our next version of Fiddler Classic.


Nick Iliev
Progress Telerik

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Nick Iliev
Posted on: 17 Jun 2020 08:19

Hi Tony,


Thank you for the detailed explanation of the issue. Loggin this one as a story for improvement and marking it as a bug. As a note for the team - the issue is reproducible on Windows and is related to how Windows is focusing popup windows (and prioritizing them when there are multiple opened windows).


Regards, 1981
Nick Iliev
Progress Telerik

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