In trying to diagnose some request/response oddities from one of our web pages with Fiddler, I discovered that on some requests the Statistics tab would have this note listed:

"NOTE: This request was retried after a Receive operation failed."

Can anybody shed a little light on what this means? Whatever it is, it's not repeatable. Sometimes I get that message, and sometimes I don't. The request is going to an Apache web server that's then proxying the request to a Tomcat server.

The first part of the Statistics tab output looks like this:

>>>>>>>>>>>>>>>>>
Request Count:   1
Bytes Sent:      1,333 (headers:1,333; body:0)
Bytes Received:  10,243 (headers:776; body:9,467)

ACTUAL PERFORMANCE
--------------

NOTE: This request was retried after a Receive operation failed.

ClientConnected: 00:37:16.488
ClientBeginRequest: 00:37:42.189
GotRequestHeaders: 00:37:42.190
ClientDoneRequest: 00:37:42.190
Determine Gateway: 0ms
DNS Lookup: 17ms
TCP/IP Connect: 20ms
HTTPS Handshake: 0ms
ServerConnected: 00:37:42.228
FiddlerBeginRequest: 00:37:42.228
ServerGotRequest: 00:37:42.228
ServerBeginResponse: 00:37:42.190
GotResponseHeaders: 00:37:42.265
ServerDoneResponse: 00:37:42.266
ClientBeginResponse: 00:37:42.266
ClientDoneResponse: 00:37:42.266

Overall Elapsed: 0:00:00.077
>>>>>>>>>>>>>>>>>

Hi,

There is a desktop application with https as communication protocol between client and server. When I am trying to capture desktop application traffic in Fiddler with below option -

Tools -> Options -> Connections -> Fiddler listens on Port -> 443 / 8888, seeing no traffic being capturing in the tool.

Please suggest if I am missing.

 

 

Hello,

I can't download Fiddler from the website (https://telerik-fiddler.s3.amazonaws.com/fiddler/FiddlerSetup.exe).

It said that 

The connection to telerik-fiddler.s3.amazonaws.com was interrupted while the page was loading.

The page you are trying to view cannot be shown because the authenticity of the received data could not be verified.
Please contact the website owners to inform them of this problem.

Can someone please check this?

Thanks.

1、I set some Fiddler filter rules to capture only specific host and urls，and it works well except bellow two microsoft urls：

https://watson.telemetry.microsoft.com/Telemetry.Request

https://v10.vortex-win.data.microsoft.com/collect/v1

2、my filter setting and regular express is shown in the attached image, is my regular express written wrong?

 

Progress Telerik Fiddler Web Debugger
v5.0.20173.50948 for .NET 4.6.1
64-bit AMD64, VM: 305.0mb, WS: 309.0mb
.NET 4.6.2 WinNT 10.0.16299.0

Will there be a way to filter traffic while capturing to avoid "spamming" of the logs?

p.s using Fiddler on Mac.

I have followed the documentation and exported the fiddler cert to my machine, did the trust certificate through windows cert management and then in Settings for Chrome and Firefox I added the cert but still I get security denial when hitting any https site with Decrypt HTTPS traffic checked.

Anyone can help?

Thanks,

Maark

I'm using Fiddler to look at requestsare being made by a WPF/WCF application I'm developing in Visual Studio.

I changed the app.config file so that the WPF project makes requests to http://localhost.fiddler:50000/ instead of the usual http://localhost:50000/, but for each request, Fiddler shows multiple entries.

See the attached screenshot, where you can see three entries for the call I made to CustomerService.svc for a customer list. You can tell this is the list call from the size of the return data.

If I add breakpoints in VS, I can see that there is actually only one call being made, but Fiddler shows three.

Anyone able to explain why. This is making debugging very confusing.

Thanks

Hello there. I cannot seem to activate my Office 365 Business desktop application I recently installed on my machine. I have tried quite a few trials and errors nothing work until I decided to run Fiddler to monitor http traffic to and from the machine during activation process. But lo and behold, this time it activated immediately. I don't know exactly what happened but my suspicion is that fiddler creates its own firewall rule as part of its component to open up and provide access http traffic to and from the machine in question. Is this feasible?? I am really clueless at this point other than the fact that during the process of running fiddler trace I was able to activate my Office 365 Business desktop application. Any input, ideas or suggestions is greatly appreciated. Let me know please. Thanks!

We have a web based application that renders inside an iFrame. When using Fiddler and decrypting HTTPS, there is one iFrame that generates the message "The security certificate presented by this website was not issued by a trusted certificate authority". If we uncheck the decrypt option or use the application without Fiddler running we have no errors. Looking at the URL it is trying to browse to a website that has a Fiddler DO_NOT_TRUST certificate in the user personal certificate repository. I have clicked on the Actions button on the HTTPS tab and chosen the "Trust Root Certificate" option but that made no difference.  Any ideas why this one site would reject the Fiddler certificate?

Thanks in advance

Hi,
I have problem download the certificate on any mobile (iOS and android)  at work.
I made the configurations on my phone but I still can't download the certificate on this address:
http://ipv4.fiddler:8888/ (Device : Samsung S8, S7, Iphone X, iphone 6)
the Fiddler Echo Service dos not load
the "Decrypt HTTPS" option in Tools -> Options -> HTTPS is checked.
NB (At home it works without problems with the wifi)

Has this to do with the corpatret wifi that does not allow this?

 

Thanks