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Saving browser-server interactions to a HAR file

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Updated at September 24, 2025

If you encounter an error while using the Yandex Cloud console, a HAR file can help troubleshoot it. It is a network log of the interaction between a browser and a web page. For Yandex Cloud specialists to be able to identify the cause of a server malfunction, enable logging and reproduce the error. Save the HAR file and send it to technical support.

  1. On the page with the error, press Ctrl + Shift + I (⌥ + ⌘ + I for macOS) or select → Advanced → Developer tools from the menu.

  2. Go to the Network tab.

  3. Make sure network logging is enabled: the button in the top-left corner is red . If the button is grey, click it.

  4. Enable Preserve log.

  5. To limit the HAR file to records that have to do with the error, clear the log by clicking to the right of the record network log button.

  6. To open the developer dashboard settings, click Settings.

  7. Under Preferences of the Network panel, select Allow to generate HAR with sensitive data and close the settings window.

  8. Refresh the page or repeat the actions that resulted in the error.

  9. Click .

  10. In the list that opens, select Export HAR (with sensitive data)... and save the HAR file.

  11. Attach the HAR file to your message to support.

  1. On the page with the error, press Ctrl + Shift + I (⌥ + ⌘ + I for macOS) or select → More Tools → Developer Tools from the menu.
  2. Go to the Network tab.
  3. Make sure network logging is enabled: the button in the top-left corner is red image. If the button is black, click it.
  4. Enable Preserve log.
  5. To limit the HAR file to records that have to do with the error, clear the log by clicking image to the right of the record network log button.
  6. To open the developer panel settings, click Settings.
  7. Under Preferences of the Network panel, select Allow to generate HAR with sensitive data and close the settings window.
  8. Refresh the page or repeat the actions that resulted in the error.
  9. Click image.
  10. In the list that opens, select Export HAR (with sensitive data)... and save the HAR file.
  11. Attach the HAR file to your message to support.
  1. On the page with the error, press Ctrl + Shift + I (⌥ + ⌘ + I for macOS) or select Opera → Developer → Developer Tools from the menu in the top-left corner.
  2. Go to the Network tab.
  3. Make sure network logging is enabled: the button in the top-left corner is red image. If the button is black, click it.
  4. Enable Preserve log.
  5. To limit the HAR file to records that have to do with the error, clear the log by clicking image to the right of the record network log button.
  6. To open the developer dashboard settings, click Settings.
  7. Under Preferences of the Network panel, select Allow to generate HAR with sensitive data and close the settings window.
  8. Refresh the page or repeat the actions that resulted in the error.
  9. Click .
  10. In the list that opens, select Export HAR (with sensitive data)... and save the HAR file.
  11. Attach the HAR file to your message to support.
  1. On the page with the error, press Ctrl + Shift + I (⌥ + ⌘ + I for macOS) or select image → More Tools → Developer Tools from the menu.
  2. Go to the Network tab.
  3. Refresh the page or repeat the actions that resulted in the error.
  4. Right-click the table and select Save all as HAR.
  5. Attach the HAR file to your message to support.
  1. On the page with the error, press Ctrl + Shift + I (⌥ + ⌘ + I for macOS) or select → More tools → Developer tools from the menu.
  2. Go to the Network tab.
  3. Make sure network logging is enabled: the button in the top-left corner is red image. If the button is black, click it.
  4. Enable Preserve log.
  5. To limit the HAR file to records that have to do with the error, clear the log by clicking image to the right of the record network log button.
  6. To open the developer dashboard settings, click and select Settings.
  7. Under Preferences of the Network panel, select Allow to generate HAR with sensitive data and close the settings window.
  8. Refresh the page or repeat the actions that resulted in the error.
  9. In the top panel, click image.
  10. In the list that opens, select Export HAR (with sensitive data)... and save the HAR file.
  11. Attach the HAR file to your message to support.
  1. On the page with the error, select Safari → Preferences → Advanced from the menu and enable Show Develop menu in menu bar.
  2. In the Develop menu, select Connect Web Inspector or use the ⌥ + ⌘ + I keyboard shortcut.
  3. Go to the Network tab.
  4. Enable Preserve log by clicking the round icon in the upper left corner of the tab.
  5. Refresh the page or repeat the actions that resulted in the error.
  6. In the top right-hand corner of the tab, click Export.
  7. Attach the HAR file to your message to support.

Alert

The HAR file contains cookies of your active session in Yandex Cloud. For security reasons, we recommend that you terminate the session after sending the file.

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