How to create a HAR file

The browser's HAR file contains information about the browser's interaction with the website. Such files may be required by technical support engineers to diagnose errors occurring in the web interface of ISPsystem platforms.

This article contains instructions for creating HAR files in popular browsers.

Google Chrome

To create a HAR file:

1. Go to the URL where the error occurs, but do not reproduce the issue.
2. In the top menu of the browser click → More Tools → Developer Tools or press the combination of Ctrl + Shift + I to open the developer tools.
3. Enter the Network tab.
4. Click to clear the network log.
5. Enable options Preserve log and Disable cache:
   
6. Reproduce the issue.
7. Click to export the HAR file.
   

Mozilla Firefox

To create a HAR file:

1. Go to the URL where the error occurs, but do not reproduce the issue.
2. In the top menu of the browser click → More Tools → Developer Tools or press the combination of Ctrl + Shift + I to open the developer tools.
3. Go to the Network tab.
4. Click to clear the network log.
5. Reproduce the issue.
6. Click → Save All As HAR.

Safari

To create a HAR file:

1. Go to the URL where the error occurs, but do not reproduce the issue.
2. Go to the Develop menu → Show Web Inspector → Network tab.
3. Click to clear the network log.
4. Click  and select Preserve log option.
5. Reproduce the issue while the network requests are recorded.
6. Click the Export icon.
7. Select the folder to save the logs to and click Save.