How to export HAR file for SSO troubleshooting

When experiencing Single Sign-On (SSO) issues in Langfuse, you need to export a HAR file to help Langfuse support to diagnose the problem.

What is a HAR file?

A HAR file is a JSON-formatted archive that logs all HTTP requests made by your browser, including:

• Request and response headers
• Cookies and session data
• Timing information
• Response content
• Error details

Browser-specific instructions

Google Chrome

1. Open Developer Tools: Press F12 or Ctrl+Shift+I (Windows/Linux) or Cmd+Option+I (Mac)
2. Access Network Tab: Click on the “Network” tab
3. Configure settings:
   • Ensure the red record button is active
   • Check “Preserve log” to keep logs during navigation
4. Clear existing logs: Click the clear button (🚫)
5. Reproduce the issue: Refresh the page and perform the SSO steps that cause problems
6. Export: Right-click in the network log and select “Save all as HAR with content”

Mozilla Firefox

1. Open Developer Tools: Press F12 or Ctrl+Shift+I
2. Access Network Tab: Click on the “Network” tab
3. Configure: Check “Persist Logs” and clear existing logs
4. Reproduce the issue: Refresh and perform the problematic SSO steps
5. Export: Right-click in the network requests and select “Save All As HAR”

Microsoft Edge

1. Open Developer Tools: Press F12 or Ctrl+Shift+I
2. Access Network Tab: Click on the “Network” tab
3. Configure: Ensure recording is active and “Preserve log” is checked
4. Reproduce the issue: Clear logs, refresh, and perform SSO steps
5. Export: Click the download icon (⬇️) or right-click and select “Save as HAR with Content”

Safari

1. Enable Developer Menu: Safari → Preferences → Advanced → Check “Show Develop menu”
2. Open Web Inspector: Develop → Show Web Inspector or Cmd+Option+I
3. Access Network Tab: Click on the “Network” tab
4. Configure: Enable “Preserve Log”
5. Reproduce the issue: Clear logs, refresh, and perform SSO steps
6. Export: Click the export icon (📤) and choose “Export HAR”