I've attached the raw HTTP response, copied directly from Fiddler. At lOperations[0].lRecords, you'll see that there are 2 records (arrays) and that each record contains 6 items, the last of which is an array. However, when I view the resonse using the JSON filter, the second of these arrays appears to contain only 5 items. I'm sure that the bug has something to do with the fact that the sub-array in the second array is an empty array, but it should display as an empty array, not as if it weren't there at all.
This is a feature that's present in both the Firefox and Chrome dev tools, and it's incredibly useful. Fiddler is already great, and that would make it so much better :-)
The GetSupportedVersions function inside HTTPSUtilities has an off-by-one error in the parser that results in omitting the final value in the list.
Instead of code like this:
for (int index = 1; index < arrSupported.Length - 2; index += 2)
the code should instead be:
for (int index = 1; index <= arrSupported.Length - 2; index += 2)
Hi,
1-st of all, thanks for the Fiddler!
I'm using the custom font size set under the Fiddler options (Windows OS), but its not respected during the params editing.
see attached screenshot.
I use the request LogRequests history to save requests, so that I can replay them when needed. Every month or so when my machine is restarted for an update and if Fiddler is opened, the history is corrupted.
I need a way to either save off certain requests like I can in Postman, etc, or I need Fiddler to have reliable restore points for the history so that the entire history is not corrupted so often.
Please fix or add a feature to address this -
Thanks
HOSTS in fiddler shouldn't change SNI info when Decrypt HTTPS traffic is enabled
When Decrypt HTTPS traffic is enabled and use HOSTS in fiddler, SNI should be keep the same as request, instead of use the one from HOSTS(removed when use IP, or rewrite when use another HOSTS)
HTTP/2 has been a standard since mid-2015. All major browsers support it, but adoption is slow because there no good debugging tools. I want to take advantage of pipelining, server push, etc that comes with HTTP/2 which makes it easier to adopt packages like gRPC. Having a good debugging story (both capture as well as insertion / modification) would make this more possible
Inside the Header inspector, you can add a header to a breakpointed response. The header editor offers templates. The "Set-Cookie" template for persistent cookies has an expiration date that seemed impossibly far in the future: June 2021.
Well, I may not have a flying car, but we're now living in a future beyond that imagined by the header inspector. We need to update to a later expiration date.
Allow to search / reuse requests from history in a more efficient way 1. Add column [Date] or [Date and Time] to history, so one can look for a request that was used at a given date / time 3. Allow to sort by request Url, date / time 4. Allow to group by request urls: If there are several requests with the same url, provide the option to group / ungroup them 5. Add column [Result] with the result code for each request, so that one can now which request to use (for example, one needs a request that gave a 404, or only 202s) 6. Filter history by request type (GET, PUT, ...), url content (example: search for "/admin/ ... etc"), date / time
When my machine restarts before Fiddler is closed gracefully, Fiddler opens back up with an error saying that my capture saz is corrupt and cannot be opened.
This is a pain as I have to then manually rebuild any requests that I need.
Fiddler should have savepoints or some way to prevent it from losing all my LogResuest history whenever Fiddler is forcefully shut down
When doing an IPR audit what is the actual License Type of Fiddler4 ? eg EULA, MIT Apache etc
https://www.telerik.com/purchase/license-agreement/fiddler-enterprise-support
https://www.telerik.com/download/fiddler
I am running into an issue where different business units of the company have finer grained security rules which prevent people from accepting / importing / trusting the OOTB Fiddler Root Certificate. Would it be possible for Fiddler to create a new CSR and import the new signed return certificate. This way I can sign the CSR with our internal CA which all hosts within the company have been configured to trust and accept.
Fiddler version: v5.0.20204.45441
If Fiddler is left for some time to work unattended then its memory usage is constantly growing.
I usually use Fiddler with some Autoresponder rules enabled and "Unmatched requests passthrough" option switched on. If left in this state for several hours an amount memory it uses could grow up to 10GB and even more which is quite annoying...
Autosave option is enabled and sessions are dumped every 5 minutes. So this behaviour is not because of session list is becoming large, it is being cleaned every 5 minutes.
If you try to launch two instances of Fiddler/FiddlerViewer at the same time, you hit a sharing violation.
This file needs to be read with the correct sharing flags set.
---------------------------Loading custom MIME mappings failed
---------------------------
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 process cannot access the file 'C:\Users\ericlaw\Documents\Fiddler2\CustomMimeMappings.xml' because it is being used by another process.
Type: System.IO.IOException
Source: mscorlib
at System.IO.__Error.WinIOError(Int32 errorCode, String maybeFullPath)
at System.IO.FileStream.Init(String path, FileMode mode, FileAccess access, Int32 rights, Boolean useRights, FileShare share, Int32 bufferSize, FileOptions options, SECURITY_ATTRIBUTES secAttrs, String msgPath, Boolean bFromProxy, Boolean useLongPath, Boolean checkHost)
at System.IO.FileStream..ctor(String path, FileMode mode, FileAccess access, FileShare share, Int32 bufferSize, FileOptions options, String msgPath, Boolean bFromProxy)
at System.IO.FileStream..ctor(String path, FileMode mode)
at Fiddler.XmlFileMimeMappings..ctor(String filePath) in C:\Jenkins\Fiddler_Windows\workspace\FiddlerCore\FiddlerCore.Shared\Common\Core\MimeMapping\XmlFileMimeMappings.cs:line 38
at Fiddler.frmViewer. (Object , EventArgs ) in C:\Jenkins\Fiddler_Windows\workspace\Fiddler2\Fiddler.Shared\Viewer.cs:line 9968
Fiddler v5.0.20202.18177 (x64 AMD64) [.NET 4.0.30319.42000 on Microsoft Windows NT 10.0.19043.0]
---------------------------
OK
---------------------------
Since more and more websites enforce you to use tls 1.2 (and don't support tls 1.0 any more), I suggest that the list of protocols is automatically extended with tls1.2 by a next fiddler update - or at least there should be a single-time question box with Yes-No-Cancel to extend it.
Also see reference at https://www.telerik.com/forums/some-https-sites-are-unaccessible-when-using-fiddler
I recently am having an issue with MS Teams while running fiddler. MS Teams keeps giving disconnect errors. That's when I noticed that fiddler it proxying it's traffic even though I have filters set to "Show only the following Hosts", and teams.microsoft.com are not included in the hosts. I also notice other items in my sessions list that are not in my list of hosts so what is going on?
I don't really want to post my list of hosts publicly. If you need them, please let me know and maybe I can email them to someone.
It would be highly useful if there was a "URL splitter" tool added, perhaps as a drop-down entry in the TextWizard, which takes a long-form paramaterized URL and splits it into a line-separated list of individual parameters (and can go the opposite way direction as well).
The "WebForms" subpanel already does this, albeit there's no manual ability to choose what URLs this can be done to ...as far as I'm aware.