Introduction
An HTTP Archive (or HAR) file contains a JSON record of all recent network activity from the browser. This can be useful when troubleshooting issues with certain types of networking issues.
Procedure
Please note that Internet browsers are frequently updated, third party software with a large number of available versions. The specific steps to create a HAR file may vary depending on the browser.
Mozilla Firefox (Firefox 92.0.1)
- Click 'open application menu' in the upper right hand corner
- Select 'More Tools -> Developer Tools' (or press Ctrl + Shift + I)
- Select the 'Network' tab in the developer tools
- Click the 'Settings' Icon and select 'Persist Logs'
- Click the 'Clear Logs' Trash Can icon to clear prior logs
- Replicate the issue that requires troubleshooting
- Select any displayed individual HTTP request with right click, and select 'Save all as HAR'
Google Chrome (Version 97.0.4692.71)
- Click the 'Customize and control Google Chrome' menu in the upper right hand corner
- Select 'More Tools -> Developer Tools' (or press Ctrl + Shift + I)
- Select the 'Network' tab in the developer tools
- Select the 'Preserve Log' checkbox
- Click the 'Clear' icon to clear prior logs
- Replicate the issue that requires troubleshooting
- Select any displayed individual HTTP request with right click, and select 'Save all as HAR with content'
Microsoft Edge (Chromium Based)
- Click the 'Settings and More' menu in the upper right hand corner
- Select 'More Tools -> Developer Tools' (or press Ctrl + Shift + I)
- Select the 'Network' tab in the developer tools
- Select the 'Preserve Log' checkbox
- Click the 'Clear' icon to clear prior logs
- Replicate the issue that requires troubleshooting
- Select any displayed individual HTTP request with right click, and select 'Save all as HAR with content'