What is a HAR file?
The HAR (HTTP Archive) file format is a JSON-structured file containing all network traffic information about a browser's interactions with the server providing content for a webpage. Support engineers use it for troubleshooting.
How to get the HAR file?
Follow the next steps:
Open Developer Tools (DevTools) in your browser:
on Windows: press the F12 key or Ctrl+Shift+I;
on Mac (Chrome): press Command+Option+I;
on Mac (Safari): press Command+Option+C (Preferences -> Advanced -> "Show Develop menu in menu bar" checkbox should be enabled);
Chose the “Network” tab:
Reproduce the issue - repeat the same actions which lead to an error, incorrect or unpredictable result;
Export the HAR file:
How is the HAR file used?
The HAR file allows support engineers to analyze the application state and identify the issue's root cause.