Last Updated: 29 Jun 2020 10:01 by ADMIN
Created on: 26 Jun 2020 12:39
Type: Bug Report
Fiddler Everywhere 10 + Corporate VPN = Useless

MacOs, Fiddler Everywhere 10, Cisco AnyConnect.

Here's the workflow...

In the morning, Cisco VPN isn't connected.  All traffic is blocked by design.  Attempt to start Fiddler Everywhere.  WON'T START because it can't login.  What is this new requirement to login?  If I don't start Fiddler before the VPN, no traffic ever logs.  If i don't start the VPN, Fiddler won't start.  A bit of a cartch-22, ya think?

Somehow I bypass the VPN (Don't tell corp security) and get logged-in.  Fiddler is up.  Start the VPN. Get some work done.  Shiny new UI!  Still can't drag-drop from inspector to composer?  Damn.

At some point the Fiddler login EXPIRES.  Why does it expire?  What do I even need a login for?  At this point ALL TRAFFIC fails, since Fiddler was the system proxy.  All work stops.  Now I need to stop Fiddler, Stop the VPN, attempt to start Fiddler again....oh wait, can't login because the VPN is down...  here we go again.

This is all a serious waste of time.  I can see registering Fiddler so you know who your users are.  What's with the REQUIREMENT to have a login, and why does it expire?  It kinda makes Fiddler useless.

Please remove the requirement to login to an account before being able to use Fiddler Everywhere.




1 comment
Nick Iliev
Posted on: 29 Jun 2020 10:01

Hello Sean,


Thank you for your valued feedback!

I can confirm that at this moment, FE is not working alongside an active VPN connection (like one made with Cisco VPN). The team has already acknowledged the issue, and these tasks are one of our priorities for the upcoming feature releases.

As for the issue related to FE account expiration and the following non-working traffic, it looks like that on your side, the proxy is not reset once the FE credentials expired. It is also strange that you are experiencing a login expiration way too often. Can you please make sure that you are using the latest version of Fiddler Everywhere, and if the issue is still there, please send us the FE logs. On Mac OS these logs should be located in the following directory:

~/Library/Application Support/Fiddler Everywhere/Logs


Nick Iliev
Progress Telerik

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