Jacobus Terhorst

Can you make Fiddler 4 available as normal download? Not via cloudfront.net, which is blocked?

Can you make Fiddler 4 available as normal download? Not via cloudfront.net, which is blocked?
Problem by Jacobus Terhorst Status: New Comments: 0 Last update: 2015-05-22T21:34:00 by Jacobus Terhorst
Jerry Decime

TrustCert UX Flaws

At least Fiddler v4.5.1.0 on Windows 8.1 has a problem whereby the TrustCert Confirmation dialog which states: "please confirm that you wish to ADD the following certificate to your PC's Trusted Root List..." is not an actual confirmation as the DO_NOT_TRUST_FiddlerRoot is already installed into the trust store at that point. If you choose "no", the certificate remains in the trust store and the message "failed to add the root certificate to the Machine Root List" is not in fact accurate as the cert was in fact added.
Problem by Jerry Decime Status: New Comments: 0 Last update: 2015-05-21T18:57:26 by Jerry Decime
Yakov Tchenak

cannot install

Sorry, you may have found a bug...
Fiddler has encountered an unexpected problem. If you believe this is a bug in Fiddler, please copy this message by hitting CTRL+C, and submit a bug report using the Help | Send Feedback menu.

Could not load file or assembly 'Xceed.Zip, Version=4.5.13328.11100, Culture=neutral, PublicKeyToken=ba83ff368b7563c6' or one of its dependencies. The system cannot find the file specified.

Type: System.IO.FileNotFoundException
Source: Fiddler
at Fiddler.FiddlerApplication._SetXceedLicenseKeys()

at Fiddler.frmViewer.RunMain(String[] arrArgs)

at Fiddler.frmViewer.Main(String[] arrArgs)

Fiddler v2.4.9.4 (x64 AMD64) [.NET 2.0.50727.8009 on Microsoft Windows NT 6.3.9600.0]
Problem by Yakov Tchenak Status: New Comments: 1 Last update: 2015-04-21T02:51:40 by Eric Lawrence
Brian Schmitt

Support High DPI screens

Please support High DPI - When running in a Fusion VM on a Retina MAC, the UI tends to look a little squished. For example I run at 200% dpi.

Note: If it's winforms, you *might* be able to simply update the Form property AutoScaleMode = Font and then open the Designer.cs file and add "this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);"
Feature Request by Brian Schmitt Status: New Comments: 1 Last update: 2015-03-31T14:27:01 by Brian Schmitt
Jeff Sani

The session icon legend is incomplete in the documentation

There are several icons in the UI such as <> that have no reference in the online documentation. Some of the icons in the legend also appear to be slightly different. Can you please ensure that all of these are consistent and up to date?
Feedback by Jeff Sani Status: New Comments: 0 Last update: 2015-02-25T16:47:46 by Jeff Sani
Silvio Jeschofnik

Implement proper handling for content-type applicationzip


at the Moment when exporting a FiddlerWebtest using FiddlerCore, RequestsBodies with Content-Type application/zip will be handled as StringContent (Unicode-Encoded and therefore destroyed). I think best would be to check if Content-Type starts with "application/" in order to handle it as binary.

Kind Regards
Problem by Silvio Jeschofnik Status: New Comments: 0 Last update: 2015-02-13T11:26:17 by Silvio Jeschofnik
Stephen Wick

AutoResponder Action Supports Matching Groups

When defining a Rule within the AutoResponder tab, is it possible to use matching groups from the Match form field within the Action field?

For example: If I want to respond to a request for http://maint.mysite.com/ping/pong.html with content from http://www.mysite.com/ping/pong.html I would create a rule like the following. This rule would also apply to any other page under maint.mysite.com.

Match: regex:http://maint\.mysite\.com/(.+)
Action: http://www.mysite.com/\1

Please forgive me if this is already possible. Just let me know how to do it.


I Love this product.
Idea by Stephen Wick Status: New Comments: 1 Last update: 2015-01-20T17:39:28 by Eric Lawrence
Raivis Kalinins

Add "range: bytes" header support

I set a file to be replaced with AutoResponder and then tried doing request with

Range: bytes=179200-

but it appears that Fiddler returns the whole file not the requested range.

If I disable auto responder then the file is requested from my nginx server which servers the file correctly. (only the bytes I requested)

Version: Fiddler Web Debugger (v4.4.5.9)
Feature Request by Raivis Kalinins Status: New Comments: 1 Last update: 2015-01-20T17:38:20 by Eric Lawrence
Steven Miller


In the last month a problem has surfaced with FiddlerCap. When selecting Decrypt HTTPS, a warning regarding decrypting HTTPS traffic pops up. Saying OK to the message unchecks the Decrypt HTTPS box and than a message of "Sorry, unable to create root certificate" pops up.
Fiddler will install on those systems without an issue. However it is not ideal to request custoemr to run Fiddler instead of FiddlerCap.
Problem by Steven Miller Status: New Comments: 1 Last update: 2015-01-20T17:28:49 by Eric Lawrence
Aris Filokostas

Can an edited page be reloaded without the changes be lost?

I use the great "AutoResponder" feature to replace a page with my own one, so that I perform changes on that page.

However, this process takes several steps. Create the autoresponder, create local page with the same content as the online page, then edit it, etc.

I see that you have the "F2" function: "Unlock for Editing".

However, when I reload the page, all changes are lost.

Can you just add a checkbox, like this: "[ ] Keep changes when reloading the page"

Or something like that?

Maybe a solution already exists?
Feature Request by Aris Filokostas Status: New Comments: 1 Last update: 2015-01-20T17:27:57 by Eric Lawrence
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