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How to Collect a HAR File and HTTP Error Logs Using Safari

How to Collect a HAR File and HTTP Error Logs Using Safari


  • Apple Safari: All Supported Versions


Capture diagnostic logs from a web browser for UI troubleshooting using Safari


  1. Open Safari
  2. Browse to the URL in question
  3. Confirm that the "Develop" menu is visible at the top of the window
    • If the "Develop" menu is not visible then go to Safari > Preferences > Advanced > check the box, "Show Develop Menu in menu bar" 
  4. Navigate to Develop > Show Web Inspector
  5. Refresh the page to start capturing traffic
  6. Reproduce the issue
  7. Control + click on the resource in question and click "Export HAR"
  8. Check for and save HTTP Error details
    1. For any errors observed above, note the Request URL and HTTP error number (4## or 5##)
    2. Select the Console tab
    3. Locate the error number tied to the Request URL
    4. Right-click matching error and click "Save As..."
    5. Set name of file, including at least HTTP error number, and save file to your computer
      Original filename:
      Updated filename:
  9. Attach the HAR file and HTTP Error file to the case, or use CB Vault if the file is larger than 25 MB

Additional Notes

  • The "Show Web Inspector" option will not be available until the user browses beyond Safari's home page.
  • HAR Files under 25 MB can be attached directly to a Carbon Black Technical Support case. 
  • Files larger than 25 MB should be uploaded to CB Vault.

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