Tracing and capturing Qlik Sense Enterprise on Windows traffic using Fiddler HTTP Debugging Proxy

Yoichi_Hirotake — Fri, 28 Apr 2023 09:33:58 GMT

This article describes how to trace/capture Qlik Sense Enterprise on Windows traffic using Fiddler.

What is Fiddler?

How does it work?

Fiddler changes the proxy settings (Internet Properties – Connections – LAN settings – Advanced) for the currently logged on user for HTTP traffic when running
All HTTP traffic will go through Fiddler on port 8888, i.e. Fiddler will listen on this port

For HTTPS:

Download and install Fiddler on the client, from https://www.telerik.com/download/fiddler
Launch Fiddler (It will start the capture automatically)
Stop the capture (File > uncheck "Capture traffic") and clear the sessions (Right-click > Remove > All sessions)
Follow the steps at the following link to decrypt HTTPS traffic: https://docs.telerik.com/fiddler/Configure-Fiddler/Tasks/DecryptHTTPS
Start capture again (File > check "Capture traffic")
Navigate to the URL to be traced, for example https://qvserver/hub
Go to File > Save > All Sessions. Save the file(file type .saz)

Qlik Sense Server Setup

Download and install Fiddler on the client, from https://www.telerik.com/download/fiddler
Launch Fiddler
Navigate to the URL to be traced, for example http://qvserver/hub. Note: URL has to be HTTP
Tracing will start immediately. To stop capturing traffic go to File > Capture traffic or press F12
Go to File > Save > All Sessions. Save the file(file type .saz)

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