Hi All,

I am using Fiddler to Switch the Hostnames with IP address so that I can access my personal email from my work pc. It used to work until recently but from last week I am unable to open Gmail or outlook. Before the host is switched by Fiddler our office proxy system detecting the host name and blocking it. How can this be solved?

Thanks in Advance.

hello, sorry for my english!

i have url for example: https://somesite.com/index.php?var=123&var2=3333&smoethingelse=1111

and how with AutoResponder i can replace this url to: https://OTHERSITE.COM?url=https://somesite.com/index.php?var=123&var2=3333&smoethingelse=1111



i try use this:     regex:(?insx).+(1111|2222|3333).+$ 
and local file to return:     https://OTHERSITE.COM?url=$1
but returnning only https://OTHERSITE.COM?url=3333, not full URL ;( can you help me?

Hello,

I'm developing a frontend against our clients api. Since it is not very reliable, I'd like to record the apis responses and work with them.
So I saved the responses to a file and configured AutoResponser to serve those instead of passing through.

However, as soon as I lose internet connection, Fiddler get's stuck when trying to establish a SSH tunnel to the api - even though this should not be required since AutoResponder is activated for that specific request.

Is there anything I can do?

Kind regards
Patrick

After installing (on Windows XP SP3), the latest version gives the following error:

---------------------------
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 composition produced a single composition error. The root cause is provided below. Review the CompositionException.Errors property for more detailed information.
1) Unknown error (0x278)
Resulting in: An exception occurred while trying to create an instance of type 'Telerik.NetworkConnections.NetworkConnectionsManager'.
Resulting in: Cannot activate part 'Telerik.NetworkConnections.NetworkConnectionsManager'.
Element: Telerik.NetworkConnections.NetworkConnectionsManager -->  Telerik.NetworkConnections.NetworkConnectionsManager -->  DirectoryCatalog (Path="C:\Program Files\Fiddler")
Resulting in: Cannot get export 'Telerik.NetworkConnections.NetworkConnectionsManager (ContractName="Telerik.NetworkConnections.NetworkConnectionsManager")' from part 'Telerik.NetworkConnections.NetworkConnectionsManager'.
Element: Telerik.NetworkConnections.NetworkConnectionsManager (ContractName="Telerik.NetworkConnections.NetworkConnectionsManager") -->  Telerik.NetworkConnections.NetworkConnectionsManager -->  DirectoryCatalog (Path="C:\Program Files\Fiddler")
Type: System.ComponentModel.Composition.CompositionException
Source: System.ComponentModel.Composition
   at System.ComponentModel.Composition.Hosting.CompositionServices.GetExportedValueFromComposedPart(ImportEngine engine, ComposablePart part, ExportDefinition definition)
at System.ComponentModel.Composition.Hosting.CatalogExportProvider.GetExportedValue(ComposablePart part, ExportDefinition export, Boolean isSharedPart)
at System.ComponentModel.Composition.Hosting.CatalogExportProvider.CatalogExport.GetExportedValueCore()
at System.ComponentModel.Composition.Primitives.Export.get_Value()
at System.ComponentModel.Composition.ExportServices.GetExportedValueFromLazy[T](Export export)
at System.ComponentModel.Composition.Hosting.ExportProvider.GetExportedValueCore[T](String contractName, ImportCardinality cardinality)
at Fiddler.Proxy..ctor(Boolean isPrimary, ProxySettings upstreamProxySettings) in C:\Jenkins\Fiddler_Windows\workspace\Fiddler2\Common\Core\Proxy.cs:line 208
at Fiddler.frmViewer.‹•(String[] ˆ•) in C:\Jenkins\Fiddler_Windows\workspace\Fiddler2\Viewer.cs:line 2906
at Fiddler.frmViewer.‡•(String[] ˆ•) in C:\Jenkins\Fiddler_Windows\workspace\Fiddler2\Viewer.cs:line 2723
Fiddler v5.0.20192.25091 (x86 x86) [.NET 4.0.30319.2045 on Microsoft Windows NT 5.1.2600 Service Pack 3]
---------------------------
OK   
---------------------------

The previous version, 5.0.20182.28034, works without any errors at all.

Thanks.

Hello.

I used Fiddler about a year ago, and manually used it to save as plain text, but i stopped (didnt need it). Now i do need it. 

ive used google & every result is someone asking for an "Automatic" way to do it - But no answers.  I'm after the manual way to save as plain text (HTML output) to a file. 

 

can someone guide me. Thanks. 

     Hi please help with this problem, im seriosly gonna break my pc for this 

 

 

Hello. I've found a problem - fiddler can't capture traffic from device connected to wi-fi with peap mschapv2. How can I resolve it?

Sincerely, Ivan Buruyane.

Hi.  I think I've worked through all the steps required to enable https decryption and added the fiddler cert to the trusted keychain store.  However, the only sessions I get in the capture are the "Tunnel to <my server>".

 

The inspector shows messages that say the usual "This is a CONNECT tunnel"... and "Fiddler's HTTPS Decryption feature is enabled, but this specific tunnel was configured not to be decrypted.  Settings can be found inside Tools > Options > HTTPS."

 

But I'm confused because when I go back to that dialog, I can confirm that "Capture HTTPS CONNECTS" and "Decrypt HTTPS traffic" are both checked and that "from all processes is selected".  I did export the cert from here which is the one I put in the trusted store.

 

So it seems like its telling me that I've enabled everything but it still does not decrypt the https traffic. On the windows version I seem to remember needing to put a cert in my user directory that was named "ClientCertificate.cer" so I tried that too but no help.

 

Did I miss anything or is there anything I can troubleshoot?

 

Thanks!

Mark

For e.g. on loading https://www.google.com:

https traffic from www.gstatic.com is decrypted, but traffic from www.google.com is not..

 

Hello there.. big fan of fiddler proxy.. for an experiment I want to have 2 or more instances of fiddler running on different servers behind a load balancer.  The issue I have noticed because I'm capturing and decrypting HTTPS traffic every time I point my client to a different instance of fiddler (server), I need to download the root certificate generated for that instance otherwise it doesn't work.  This seems not to be the case always, sometimes I'll put a new instance and everything will just work but other times I need to re-download the certificate.  I've tried to export/import the certificate from one server into the other but couldn't make it work this way either.  Not sure if there is some specific procedure or steps I need to follow or if this is just not possible (not really a certificate expert).  My goal is to be able to setup my client (iPhone) with the certificate from one single server and then if I point to a different server or to a load balancer with N different instances of fiddler proxy have it working without having to install several different certificates for different servers.. I can take the task of installing the instance of fiddler and importing a specific certificate to be used by the instance/server but installing on each client every time is becoming hard to keep up.  Any suggestions?