Creating a HAR File

Owned by Geoffry Fang
Last updated: May 28, 2022
4 min read

HAR files help our technical support teams troubleshoot complex issues. To create these files, we recommend using Google Chrome or Mozilla Firefox. However, Microsoft Edge and Safari also provide .har file generation and export capability.

Please note that HAR files may record any Personal Identifiable Information (PII) you input into your browser, so please only take actions that relate to your support issue while the HAR file is being created.

To create an HAR file in Chrome:

  1. Go to the URL where the issue occurs.
    Note: Create one issue at a time.

  2. Access Developer Tools:

    • From menu: Menu > More Tools > Developer Tools.

    • Keyboard: Ctrl+Shift+C, or, Ctrl+Alt+I, or ⌥⌘I (Mac).

  3. Click the Network tab.

  4. Locate the round button at the top left of the Network tab and verify that it’s red in color (recording mode). If it's grey, click the button to switch to the recording mode.

  5. Use the Clear button (the circle button with a line through it next to the Record button) to clear all previous activity.

  6. Select the Preserve log box on the Network tab.

     

  7. Reproduce the steps that create the issue.

  8. Save the session as a .har file by right-clicking on the grid and selecting Save as HAR with content.

     

  9. Forward the HAR file to support with detailed explanation of issue. Supporting screenshots will be helpful as well.

To create an HAR file in Microsoft Edge:

  1. From the webpage experiencing the issue, press the F12 key to open Developer Tools.

  2. Select the Network tab.

  3. Click the Clear button to clear all previous activity (if necessary).

  4. Click the Play button if it isn’t on by default.

  5. Follow steps 1 to 5 to recreate the issue.

  6. Click the Disk icon or press and hold CTRL+S to save the HAR file.

  7. Forward the HAR file to support with detailed explanation of issue. Supporting screenshots will be helpful as well.

To create an HAR file in Mozilla Firefox:

  1. Go to the URL where the issue occurs. Do not recreate the issue yet.

  2. Access Developer Tools in Network mode:

    • From menu: Menu > Web Developer > Network.

    • Keyboard: Ctrl+Shift+C, or, ⌥⌘E (Mac).

       

  3. Click the Network tab.

  4. Verify that the Play/Pause button is in Play mode.

     

  5. If any information is currently displayed in the grid, clear by clicking the Trash button next to the Play/Pause button.

     

  6. Click the Settings icon > Persist Logs.

     

  7. Repeat Steps 1 to 6 to recreate the issue.

  8. Save session as a .har file by right clicking on the grid and selecting Save all as HAR.

     

  9. Forward the HAR file to support with detailed explanation of issue. Supporting screenshots can be helpful as well.

To create an HAR file in Safari:

  1. Check the Safari menu bar at the top of the screen to access the Develop menu. Select the checkbox at the bottom next to Show Develop menu in menu bar.

    • If not visible, turn it on by going to Safari > Preferences > Advanced.

       

  2. Go to the URL where the issue occurs. Do not recreate the issue yet.

  3. Open Network tab in Web Inspector:

    • From menu: Develop > Show Web Inspector > Network.

    • Keyboard: ⌥⌘I > Network

       

  4. Select the Preserve Log checkbox to the right side of the Network tab.

     

  5. Clear current Network items by clicking the Trash icon at the far right of the Network tab.

     

  6. Repeat steps 1 to 5 to recreate the issue.

  7. Save session as a .har file by clicking the Export icon next to Preserve Log.

     

     

  8. Forward the HAR file to support with detailed explanation of the issue. Supporting screenshots can be helpful, as well.