Generating HAR file for trouble shooting

Modified on Sun, 31 Mar at 7:25 PM

Generating HAR Files for Leadmonk App

When troubleshooting complex issues, we might ask you to create and submit a HAR (HTTP Archive) file recorded while the issue is occuring. A HAR file is a log of network requests that provides us with necessary additional information about the network requests that are generated in your browser while an issue occurs.

This guide provides information on how to easily generate and submit a HAR file for different browsers.

Generating HAR Files in Different Browsers

The specific steps to generate HAR files differ slightly between browsers. Here's a breakdown for common browsers:


  • Google Chrome (and Chromium-based browsers):

    1. Open Chrome DevTools by pressing F12 or right-clicking anywhere on the page and selecting "Inspect."
    2. Go to the Network tab.
    3. Click the Settings icon (three vertical dots) in the top-right corner of the Network tab.
    4. Check the box for Preserve Log and optionally Clear browser cache before capturing the HAR.
    5. Reproduce the issue you're facing in the Leadmonk app while DevTools are open.
    6. Right-click anywhere in the Network tab and select Save as HAR.



  • Mozilla Firefox:

    1. Open the Firefox Developer Tools by pressing F12 or right-clicking and selecting "Inspect Element."
    2. Go to the Net tab.
    3. Click the cog icon in the top-right corner of the Net tab.
    4. Select Clear to clear the cache (optional).
    5. Check the box for Disable cache.
    6. Reproduce the issue in the Leadmonk app.
    7. Right-click anywhere in the Net tab and select Save as HAR.



  • Microsoft Edge:

    1. Open Edge DevTools by pressing F12 or right-clicking and selecting "Inspect."
    2. Go to the Network tab.
    3. Click the ellipsis (...) menu in the top-right corner of the Network tab.
    4. Select Capture Network Activity.
    5. Reproduce the issue in the Leadmonk app.
    6. Click the ellipsis (...) menu again and select Stop capturing Network Activity.
    7. Click the Export session option and choose HAR (*.har) to save the file.

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