How to generate a HAR capture on Chrome or Edge

The purpose of this article is to guide you through the capturing a HAR file on Chrome or Edge browsers to further troubleshoot issues related to the browser not displaying or loading PDF correctly.

Updated January 23, 2026

How to capture an HAR file (Chrome or Edge)

Step-by-step (simple)

  1. Open Chrome or Edge
  2. Press F12 (or right-click → Inspect)
  3. Go to the Network tab
  4. Check “Preserve log”
  5. (Optional but recommended) Check “Disable cache”
  6. Reproduce the issue:
    • Navigate to the badge preview
    • Wait for the PDF to fail to load
  7. In the Network tab:
    • Right-click anywhere in the request list
    • Select “Save all as HAR with content”

Send us the HAR file to support@imron.com

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