Following guide online to swap out the old max speed with the new max speed but i'm using a mac whereas most people used fiddler classic on windows and i'm not sure whether I put the values in the correct places within the rule.  Anyone spot my noob mistake ?  Seems like many people had success so I know it's possible and my phone with the app making the API calls is connected properly to Fiddler that's not the problem. Please any help is so appreciated ! Thanks so much

Im supporting multiple users who are all reporting that something has changed recently and while they can capture network traffic in Google Chrome and Microsoft Outlook they only get network calls from Fiddler. Tested with VPN and endpoint protection enabled/disabled. Logs captured, screen recordings available if needed.

Environment - Fiddler is deployed using Jamf with extension and proxy.

MacOS - Multiple versions 14.7.X and 15.X

Logs have multiple entries like this

error 09:22:08.150612+0000 com.progress-telerik.fiddler.fiddler-extension (3348778651): No interface found for (edited IP removed), not re-setting the interface

error 09:22:08.242428+0000 com.progress-telerik.fiddler.fiddler-extension (1259812390): No interface found for (edited IP removed), not re-setting the interface

i can't find snapshots menu in mac fiddler app. where is it?

i'm using free account now.

I disabled System proxy and tried to enable "Network Capture" with basic settings, but it's keep spinning and not enabling this feature.

If anyone can help me figure this out that will be so helpful.

Thank you

I often change computers at work, when I installed fiddler everywhere on the new computer, I saw a warning about the increase in the number of installations. How to reset it?

Hey,

 

since tonight (nothing changed on my Side I believe), randomly some Websites stopped to appear on Fiddler Everywhere MacOS in Capture Mode.

When I surf around / facebook / mmo-champion etc. (just example pages) they appear as Connect Tunnel opened but no content is seen.

So the Websites no longer get shown in the Traffic Window, just the Connect Tunnels.

I tried to uninstall Fiddler Everywhere, Resetting Configs by removing the Transprancy Proxy from MacOS but nothing seems to help, is there any instance I can check, why some websites randomly disappear and not coming back on MacOS? 

Do I need to "listen" on more Ports or so?

Hello,

I recently installed Fiddler, and I must say it is super easy to use and works perfectly in almost every example.

However, I encountered one special error: I am trying to track traffic on my Mac (Mac OS Sonoma 14.6.1.) for the Apple TV app (1.4.6.32).

When I try to launch Fiddler first and then the Apple TV app later, Apple TV won't start properly, and only my collection is visible. I am not able to see or visit the store or even the Apple TV+ subscription offer.

When I switch the order, so Apple TV is launched first and Fiddler afterward, it works, but there are some hiccups, like images not properly downloading. And, of course, the initial traffic when Apple TV is launching, which is crucial to me, is not visible anymore, and I can not force the app to reload the Apple TV storefront.

Is there a problem with the certificates or any other settings?

I also noticed during the very first launch and some digging in Settings that basically every major Apple domain (apple.com, mzstatic.com) was blacklisted, which was the reason why it was not working at the beginning entirely. After the removal of the Apple domains from the blacklist, Apple traffic is captured, but only if I use the order mentioned above (Apple TV first, Fiddler later).

I appreciate your help

T.

hi
I'm use fiddler "everywhere enterprise"
I'm having trouble with proxy connection after setting up VPN on Android.

[Pre-Condition]
 - PC: Mac OS / WindowOS
 - VPN App: Global Protect
 - Device setup: CA installed in PC / Android ddvice (No VPN setup) / Set the device to the same proxy information as the PC

[Check]
 - iOS
     > set up VPN > Proxy connection is successful and traiffc checked               << Pass
     > Proxy connection is successful and traiffc checked > can set up VPN        << Pass 

 - AOS
     > No VPN setup > Proxy connection is successful                                            << Pass
     > setup VPN > Proxy connection is successful but cannot traiffc check        << Fail
     > Proxy connection is successful and traiffc checked > cannot setup VPN   << Fail
          - VPN app Fail comment:  could not verify the server cerificate of the gateway / if the issue persists, contact your administrator



Please help
thank you!

While testing my mobile application using Fiddler as a system proxy, I am encountering an issue. Specifically, some HTTP response headers appear to be altered in terms of case sensitivity when they reach the application, which is causing functional discrepancies.

In the backend response, the headers are correct, as verified in Fiddler. However, when the same response reaches the mobile application, some headers are being received in lowercase, even though they are correctly capitalized in Fiddler.

For example, the header userToken  is received as userToken by the application. This discrepancy is illustrated in the attached screenshots:

• Screenshot 1 shows the correct header "userToken" as displayed in Fiddler.
• Screenshot 2 shows how the header "usertoken" appears in the Xcode logs of my mobile application.

Could you please advise on how to prevent Fiddler from altering the case of the headers or if there is a configuration setting that needs to be adjusted? Your assistance in resolving this issue would be greatly appreciated.

Thank you for your support!

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.