How to capture network traffic using the HAR and .log files provided by your browser

To troubleshoot issues related to the webserver or your browser (e.g. performance and rendering issues), you might be asked to provide the HAR file (HTTP ARchive format) after reproducing the issue.

This article explains how to save the network traffic using the built-in web development tools of your browser and how to export the .HAR file for later analysis.

Before sending us the file, make sure to sanitize it by removing any session data, more information here: https://har-sanitizer.pages.dev

Step by Step

Go to the Page you want the traffic/network logs for
Open your browser's developer tools by pressing Ctrl + Shift + I or F12 on your keyboard
Go to the Network Tab (Note: For Chrome, Preserve log must be checked to capture all traffic)
Reload the page and/or perform the steps that cause the issue
Save the captured data (See below: These steps are different in every browser)
Sanitize the HAR file
Attach the file to our Service Desk

For Google Chrome

Click on the 🔽 arrow button labeled Export HAR... or Right-click within the Network capture pane and select Save as HAR with content and save the .HAR file
Go to the Console tab and follow the next steps if there is any data displayed
Right-click within the Console capture pane
Select Save As and save the .log file

For Firefox

Right click one of the data entries
Select Save All as HAR
Go to the Console tab and follow the next steps if there is any data displayed
Right-click within the Console capture pane
Select Export visible messages to
Choose File and save

Internet Explorer and Edge

Click the disk icon Export captured traffic and choose XML or HAR format
Go to the Console tab
Right-click within the Console capture pane
Select Display all from the drop down menu and follow the next steps if there is any pane data displayed
Right-click within the Console capture pane
Select Copy All , and paste the clipboard content into a .txt file and save