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I noticed that FiddlerCore dlls are not strongly named. Is there any version available which is signed with a strong name?

I tried to sign the assembly, but it seems to be protected.

Tsviatko Yovtchev
Telerik team
 answered on 26 Jan 2017
1 answer
135 views

Hi guys,

Since the performance testing tools have been made available to VS2015 I thought I'd try out the webtest/loadtests and found that fiddler can already export directly to that format. The following article talks about custom plugins you can make for the export process but my version of Fiddler doesn't seem to pick them up.

https://blogs.msdn.microsoft.com/slumley/2007/04/17/writing-fiddler-web-test-plugins/

Can anyone else get this working using the method described? For the examples purposes I took all logic out the plugin and still couldn't get it to display in the list of plugins. It does however lock the file when I open Fiddler? Does this feature still work?

Code below:

Fiddler v4.6.3

    using Fiddler.WebTesting;

    namespace FiddlerPlugin
    {
        public class FiddlerPluginTest : IFiddlerWebTestPlugin
        {
            public void PreWebTestSave(object sender, PreWebTestSaveEventArgs e)
            {
            //Test
            }
        }
    }

Tsviatko Yovtchev
Telerik team
 answered on 26 Jan 2017
1 answer
620 views
Hi,
we tried using “compose” tab in Fiddler for testing OPTIONS method.
But by using that we are getting same status for OPTION and GET method requests that is (200 OK), even though we have restricted OPTIONS methods from web.config.(Attached screenshot as Fiddler_response.png)

Just to confirm we used HttpRequester tool ,an AddOn in Firefox, we test and found difference between the GET and OPTIONS methods requests status. As we have restricted OPTIONS method, it was giving 404 for OPTION request and for GET it is giving 200 as response.(Attached screenshot as httprequester_response.png)
Please suggest how to test HTTP methods with fiddler, so that we can differentiate between the status for restricted and non-restricted HTTP methods.
Config changes and fiddler version are attached with this ticket
Eric
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Rank 1
 answered on 25 Jan 2017
1 answer
320 views

---------------------------
Awww, Fiddlesticks!
---------------------------
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 at http://www.telerik.com/forums/fiddler.
The wait completed due to an abandoned mutex.
Type: System.Threading.AbandonedMutexException
Source: mscorlib
   at System.Threading.WaitHandle.InternalWaitOne(SafeHandle waitableSafeHandle, Int64 millisecondsTimeout, Boolean hasThreadAffinity, Boolean exitContext)
   at System.Threading.WaitHandle.WaitOne(Int32 millisecondsTimeout, Boolean exitContext)
   at Fiddler.frmViewer.‹•(String[] ˆ•) in c:\JenkinsHome\jobs\FiddlerReleaseBuild\workspace\Fiddler2\Viewer.cs:line 2809
   at Fiddler.frmViewer.‡•(String[] ˆ•) in c:\JenkinsHome\jobs\FiddlerReleaseBuild\workspace\Fiddler2\Viewer.cs:line 2717

Fiddler v4.6.3.50306 (x64 AMD64) [.NET 4.0.30319.42000 on Microsoft Windows NT 10.0.14393.0]
---------------------------
OK  
---------------------------

 

What's odd is I don't have a c:\JenkinsHome directory.

 

-Eric

Eric
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 answered on 25 Jan 2017
2 answers
136 views

Hi:

I downloaded a few .pcap files from http://malware-traffic-analysis.net.

I noticed that Fiddler would complain about CRC mismatch when decoding some gzip streams, and hence it won't display the decoded stream.

I am not quite sure whether the CRC is really wrong, however, looks like IE would decode regardless (since I have no trouble to replay it).

I attached one here. Session 1, session 3 are complained by Fiddler. (I am using the latest version 4.6.3.50306)

Password "infected"

 

 

 

Chun
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 answered on 19 Jan 2017
0 answers
313 views
When I turn fiddler on every http call is a 502 access denied issue.  Everything I've googled indicates it's a proxy/firewall issue.  As the attached image shows, the only proxy I'm using is the default fiddler proxy.  I have windows firewall turned off but Kaspersky Endpoint protection is turned on but I don't think this is the problem because I checked with a coworker and he has no access problems and we're under the same policy in Kaspersky.  I've struggled with this all day and have not been able to isolate the issue even though I've gone through all the different settings.  Does anyone have any idea or can point me in the right direction here?
Chris
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 asked on 17 Jan 2017
0 answers
811 views

Hello,

To start, let me say I love Fiddler, and have been using it for many years, as I most of the time develop web sites, and so on.

My concern is that at my new work, they are using a f*** proxy with windows authentication, which make very hard to access internet for applications like maven, nodejs, and so on. I just start Fiddler, use localhost:8888 as proxy, and it automatically authenticate on the proxy, which is marvelous :)

All worked fine using Fiddler with "Automatically Authenticate" for several months, until they change the proxy a month ago, and it no more works, but I can't figure why it does not work anymore.

When I start FIddler, I always get the same error for each requests, maybe someone can help:

10:51:14:0770 Automatic authentication of Session #3 was unsuccessful. System.Exception AuthenticationManager.Authenticate returned null.
   à Fiddler.Session.ž() dans c:\JenkinsHome\jobs\FiddlerReleaseBuild\workspace\Fiddler2\Common\Core\Session.cs:ligne 4263

I haven't seen anything special in the request or response, except a line in the response: "Proxy-Support: Session-Based-Authentication" and the lack of Negotiate, but I'm not sure this is related. And even if Basic seems supported, it does not work, as if it has been disabled on proxy side.

This is really anoying, I'll be happy to help if tests are needed on my side.

Just to have more information, this is the dialog:

> Request 1

GET ...

> Response 1

407
Proxy-Connection: Keep-Alive
Proxy-Authenticate: NTLM
Proxy-Authenticate: Basic realm="McAfee Web Gateway"
Proxy-Support: Session-Based-Authentication

> Request 2

GET
Proxy-Authorization: Negotiate TlRMTVNTUAABAAAAl4...AAAAAAAAAAAGAbEdAAAADw==

> Response 2

407
Proxy-Connection: Keep-Alive
Proxy-Authenticate: NTLM
Proxy-Authenticate: Basic realm="McAfee Web Gateway"
Proxy-Support: Session-Based-Authentication

> Request 3

GET
Proxy-Authorization: NTLM TlRMTVNTUAABAAAAB7IIogMAAwAzAAAACwALACgAAAAGAbEdAAAAD0ZSMDU1NzM2MzZMRVVS

> Response 3

407
Proxy-Authenticate: NTLM TlRMTVNTUAACAAAABgAGA...qXDSAQAAAAA=
Proxy-Support: Session-Based-Authentication

> Request 4

Proxy-Authorization: NTLM TlRMTVNTUAADAAAAGAAYA.longer_than_previous.AAAAAAAAAAAAAAAA==

> Response 4

403 AuthorizedOnly

it's over, error page with proxy error

 

In previsous successfull dialog with th server, I got :

> Response 1

407
HTTP/1.1 407 Proxy Authentication Required
Proxy-Authenticate: NEGOTIATE
Proxy-Authenticate: NTLM
Proxy-Authenticate: BASIC realm="realm_natto"

> Request 2

Proxy-Authorization: Negotiate TlRMTVNTUA...ADw==

> Response 2

HTTP/1.1 407 Proxy Authentication Required
Proxy-Authenticate: NEGOTIATE TlRMTVNTUAA...AcACABRPHpAqXDSAQAAAAA=

> Request 3

Proxy-Authorization: Negotiate TlRMTVNTUAADAAA...pKUzcq6X

> Response 3

it works, the reponse is good

Regards and thanks to have read all long...

 

Christian
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 asked on 17 Jan 2017
1 answer
134 views

Hello,

I'm trying to add a new option in the Tools menu using ToolsAction.  Is there a way to control where my new entry will be displayed -- e.g. can I put it at the bottom of the list or the top of the list?

Thanks,

Gary

P.S.  Fiddler is such an AWESOME tool!   Thank you, Eric Lawrence and the Fiddler Team!
        


Tsviatko Yovtchev
Telerik team
 answered on 13 Jan 2017
1 answer
103 views

Hello, after running "mono fiddler.exe" is Fildder suppose to start capturing web requests?

I only see the request to www.fiddler2.com/Update.aspx

Thanks Angela

Tsviatko Yovtchev
Telerik team
 answered on 12 Jan 2017
1 answer
89 views

Build number: v4.6.3.50306 

Repro steps:

1. Select one session;

2. Pressing shift button + Replay button;

Expected results:

1. A repeat count window should be popped up;

Actual results:

1. An error window pops up first with uncaught exception as attached screenshot;

 

Tsviatko Yovtchev
Telerik team
 answered on 09 Jan 2017
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