How to Capture and Download a HAR File

Overview

A HAR file (HTTP Archive) records network activity between your browser and a website. It helps our support team understand what’s happening behind the scenes—such as failed requests, slow responses, or errors—that may be causing the issue you reported.

Providing a HAR file allows us to:

• See which network requests succeed or fail

• Identify errors, timeouts, or performance bottlenecks

• Diagnose issues that aren’t visible on the screen

When to Capture a HAR File

We may ask for a HAR file when you experience:

• Pages failing to load or loading slowly

• Errors during login or form submission

• Features not working as expected

• Intermittent or hard-to-reproduce issues

Before You Begin

• Use the browser where the issue occurs

• Close other tabs or windows, if possible

• Reproduce the issue after you start recording

Steps to Capture a HAR File

Google Chrome / Microsoft Edge

1. Open the browser and go to the page where the issue occurs.

2. Right-click anywhere on the page and select Inspect.
   
   
   

3. In the Developer Tools panel, select the Network tab.
   
   

4. Ensure:

   • The Record button (●) is red
     
     
     
     

   • Preserve log is checked
     
     

5. Refresh the page.

6. Reproduce the reported concern in PortPro

7. After capturing the reported concern stop the recording. The button should no longer show as RED
   
   
   

8. Download the Har file to your computer by Selecting the  Export Har icon
   
   
   

9. Save the file to your computer.
   
    

Mozilla Firefox

1. Open the browser and navigate to the affected page.

2. Right-click on the page and select Inspect.

3. Click the Network tab.

4. Refresh the page.

5. Reproduce the issue.

6. Click the Settings (⚙️) icon in the Network tab.

7. Select Save All As HAR.

8. Save the file to your computer.

Safari (macOS)

1. Open Safari and go to Settings > Advanced.

2. Enable Show Develop menu in menu bar.

3. Navigate to the page with the issue.

4. Select Develop > Show Web Inspector.

5. Open the Network tab.

6. Refresh the page.

7. Reproduce the issue.

8. Click Export HAR and save the file.

After Capturing the HAR File

• Do not open or edit the HAR file 

• Upload the HAR file to chat or Send an email with the HAR file attached to support@portpro.io

  • Connect with a Chat agent and upload the har file
    
    
    
    

If the file is large, you may be asked to compress it before uploading.

Additional Notes

• Try to capture the HAR file as soon as the issue occurs

• If multiple attempts are needed, capture a new HAR file each time, or connect with a member of the Customer Support team and request to join a live meeting for assistance.