Need More Info
Last Updated: 06 May 2022 11:37 by zaaz
Created on: 24 Dec 2020 09:50
Type: Feature Request
Add Option to "dont capture" traffic

For now fiddler just have filter, and it not ignore traffic. Filter just hiding it.

Also Fiddler have option "Capture/Dont capture traffic" via menu File or F12. but it general for all. Also this option NOT work while the target app still use fiddler proxy.

My example problem :

I am using Nox to test MyDownloader app, while apk connect internet or requesting web data its ok to proxified by fiddler. But when I start downloading, the file is downloaded first to Fiddler cache until complete. after complete then fiddler continue request with that file response. That the problem. This also applied to all request in my PC. No problem if size just 20MB. But above 100M, 500MB, 1GB, sometime it make fiddler hang.

Also when i download file, then cancel it, fiddler still download file until complete. So to cancel that in fiddler, i need to disconnect it first.


For now, to bypass my problem i also using Proxi*fi*er filter to selecting mimetype.


Posted on: 27 Dec 2020 03:49
You'll also want to take a look at Fiddler's Tools > Fiddler Options > Performance tab, specifically the "Steam and forget" setting and the "If client aborts" dropdown box.
Nick Iliev
Posted on: 24 Dec 2020 13:29

Hi Jeriko,


FIddler is a MITM proxy, and by design, it will capture all traffic directed to it. So in the typical case, Fiddler will act as a system proxy (when Capturing mode is on), and any application that executes a request and is set to use the system proxy will go through it. All of this is expected, and it is really how the session should work. 


For your specific case, you could research and use the streaming mode in Fiddler. Another possibility would be to mock the response via the Auto Responder and issue the request with the mocked response (instead of making executing the initial session where you would have to wait for the large download).


Nick Iliev
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