Let's look at the video specifically

I'm configuring a printer to use Fiddler Classic as a remote proxy on a Windows 11 machine to monitor the printer communication with a cloud service.  The printer downloads a print document (several MB) then immediately returns an error to the cloud service saying there's some problem with the document.  It works fine with Fiddler Everywhere.  This will not be fixed on Classic?  Telerik says that Fiddler Classic is no longer being maintained yet new releases (including bug fixes) still seem to be coming out on a regular cadence.

I sned frequent requests between https://gym.whu.edu.cn/api/GSStadiums/GetAppointmentList?Version=2&SportsTypeId=21&AppointmentDate=2024-06-04 and https://gym.whu.edu.cn/api/GSStadiums/GetAppointmentList?Version=2&SportsTypeId=21&AppointmentDate=2024-06-05, I set up an auto-save to txt function,I can see the response in the fiddler,  in the firtst two request ,i can see the response in the txt,but in the following request,  the txt do not update,until over several times , i do it again ,it can be updated, I do want to know why this happen. Addly,if i do the request https://gym.whu.edu.cn/api/GSStadiums/GetAppointmentList?Version=2&SportsTypeId=21&AppointmentDate=2024-06-04  and https://gym.whu.edu.cn/api/GSStadiums/GetOftenList?Version=2 ,i can see the update in real time.
I want to add that I do the request by my manual click. In first way, i just click two buttons on the same interface. in the latter one, i keep opening the screen to return to the previous screen to do the request

Hey guys!

I noticed the Low-Level Capture Support for MacOS and I saw it planned for Windows as well.
So I am curious if there are already some details.

Out of curiosity, I think, we could look over to HTTP Debugger, which sadly was never updated anymore.
But HTTP Debugger captures every traffic on a Low-Level. 

I think modifying outgoing Requests is not possible there, but you can modify responses, which can bypass some limitations. 
(Like Cert verification on Fiddler)

So I am curious what the current plan could be.

I recently upgraded fiddler classic to the latest version, but after the upgrade, my extension file dll did not take effect. Its function is to decrypt traffic, which may be related to the upgrade of fiddler. I read the upgrade description and it seems to be a security-related issue. please help me.

I looked through the documentation and found nothing of value: https://docs.telerik.com/fiddler/extend-fiddler/extendwithdotnet

Fiddler classic the lastest version information:

5.0.20243.10853 [16/05/2024]
fixes:
 Check for updates fails in the beta channel.
 Update third party dependencies to mitigate potential security vulnerabilities.

How to set a dark theme on Fiddler Classic?

Hello, i have app using fiddler, and i have problem like in Subject. Proxy in windows settings turn on like normal but i can't see result of fiddler proxy. Im using windows 11. There's any way to fix that? Thanks! :) 

After update updating Edge browser to version 124.0.2478.51，when access website I get  "Your connection is not private" 

I have configured Windows to trust Fiddler's root certificate.

I set fiddler " !listen 8889 *.acs.org " and set " fiddler.network.https.SetCNFromSNI true"  It works well  before update edge browser.

After update edge when i access pubs.acs.org it is ok.

but when i access pubs.rsc.org i get   "Your connection is not private" 

 I think this is because someing make fiddler  cannot automatically match certificates .

Please help me fix it ,thanks so much!

 

When accessing the nature website via fiddler, if you check Decrypt HTTPS traffic, error 403 forbidden will appear, unchecked resolve https can be accessed normally. As you can see in the picture below:

Is there currently a way to get the Filter back?

When I try to enable the System Capture it says: Capturing not enabled, please try again! 
I removed the Filter manually, but now I cannot add it back, I won't get asked. I checked if there is some local Storage, but couldn't find any.