[Yandex Cloud documentation](../index.md) > [About technical support](index.md) > Saving browser-server interactions to a HAR file

# Saving browser-server interactions to a HAR file

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](https://center.yandex.cloud/support).

{% list tabs group=web_browsers %}

- Yandex Browser {#yandex}

  1. On the page with the error, press **Ctrl** + **Shift** + **I** (**⌥** + **⌘** + **I** for macOS) or select ![image](../_assets/support/yb-burger.svg) → **Advanced** → **Developer tools** from the menu.
  1. Go to the **Network** tab.
  1. Make sure network logging is enabled: the button in the top-left corner is red ![image](../_assets/support/yb-stop-rec.svg). If the button is grey, click it.
  1. Enable **Preserve log**.
  1. To limit the HAR file to records that have to do with the error, clear the log by clicking ![image](../_assets/support/yb-clear-log.svg) to the right of the record network log button.
  1. To open the developer dashboard settings, click ![image](../_assets/console-icons/gear.svg) **Settings**.
  1. Under ![image](../_assets/console-icons/gear.svg) **Preferences** of the **Network** panel, select **Allow to generate HAR with sensitive data** and close the settings window.
  1. Refresh the page or repeat the actions that resulted in the error.
  1. Click ![image](../_assets/support/yb-export-har.svg).
  1. In the list that opens, select **Export HAR (with sensitive data)...** and save the HAR file.
  
  
  1. Attach the HAR file to your message to [support](https://center.yandex.cloud/support).

- Google Chrome {#chrome}

  1. On the page with the error, press **Ctrl** + **Shift** + **I** (**⌥** + **⌘** + **I** for macOS) or select ![image](../_assets/vertical-ellipsis.svg) → **More Tools** → **Developer Tools** from the menu.
  1. Go to the **Network** tab.
  1. Make sure network logging is enabled: the button in the top-left corner is red ![image](../_assets/support/chromium-log-record-new.png =20x20). If the button is black, click it.
  1. Enable **Preserve log**.
  1. To limit the HAR file to records that have to do with the error, clear the log by clicking ![image](../_assets/support/chromium-log-clear-new.png =20x20) to the right of the record network log button.
  1. To open the developer panel settings, click ![image](../_assets/console-icons/gear.svg) **Settings**.
  1. Under ![image](../_assets/console-icons/gear.svg) **Preferences** of the **Network** panel, select **Allow to generate HAR with sensitive data** and close the settings window.
  1. Refresh the page or repeat the actions that resulted in the error.
  1. Click ![image](../_assets/support/chromium-export-har.png =30x30).
  1. In the list that opens, select **Export HAR (with sensitive data)...** and save the HAR file.
  1. Attach the HAR file to your message to [support](https://center.yandex.cloud/support).

- Opera {#opera}

  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.
  1. Go to the **Network** tab.
  1. Make sure network logging is enabled: the button in the top-left corner is red ![image](../_assets/support/chromium-log-record.png =20x20). If the button is black, click it.
  1. Enable **Preserve log**.
  1. To limit the HAR file to records that have to do with the error, clear the log by clicking ![image](../_assets/support/chromium-log-clear.png =20x20) to the right of the record network log button.
  1. To open the developer dashboard settings, click ![image](../_assets/console-icons/gear.svg) **Settings**.
  1. Under ![image](../_assets/console-icons/gear.svg) **Preferences** of the **Network** panel, select **Allow to generate HAR with sensitive data** and close the settings window.
  1. Refresh the page or repeat the actions that resulted in the error.
  1. Click ![image](../_assets/support/yb-export-har.svg).
  1. In the list that opens, select **Export HAR (with sensitive data)...** and save the HAR file.
  1. Attach the HAR file to your message to [support](https://center.yandex.cloud/support).

- Mozilla Firefox {#firefox}

  1. On the page with the error, press **Ctrl** + **Shift** + **I** (**⌥** + **⌘** + **I** for macOS) or select ![image](../_assets/support/firefox-menu.png) → **More Tools** → **Developer Tools** from the menu.
  1. Go to the **Network** tab.
  1. Refresh the page or repeat the actions that resulted in the error.
  1. Right-click the table and select **Save all as HAR**.
  1. Attach the HAR file to your message to [support](https://center.yandex.cloud/support).

- Microsoft Edge {#edge}

  1. On the page with the error, press **Ctrl** + **Shift** + **I** (**⌥** + **⌘** + **I** for macOS) or select ![image](../_assets/horizontal-ellipsis.svg) → **More tools** → **Developer tools** from the menu.
  1. Go to the **Network** tab.
  1. Make sure network logging is enabled: the button in the top-left corner is red ![image](../_assets/support/edge-log-record.png =20x20). If the button is black, click it.
  1. Enable **Preserve log**.
  1. To limit the HAR file to records that have to do with the error, clear the log by clicking ![image](../_assets/support/edge-log-clear.png =20x20) to the right of the record network log button.
  1. To open the developer dashboard settings, click ![image](../_assets/console-icons/ellipsis.svg) and select ![image](../_assets/console-icons/gear.svg) **Settings**.
  1. Under ![image](../_assets/console-icons/gear.svg) **Preferences** of the **Network** panel, select **Allow to generate HAR with sensitive data** and close the settings window.
  1. Refresh the page or repeat the actions that resulted in the error.
  1. In the top panel, click ![image](../_assets/support/chromium-export-har.png =30x30).
  1. In the list that opens, select **Export HAR (with sensitive data)...** and save the HAR file.
  1. Attach the HAR file to your message to [support](https://center.yandex.cloud/support).

- Safari {#safari}

  1. On the page with the error, select **Safari** → **Preferences** → **Advanced** from the menu and enable **Show Develop menu in menu bar**.
  1. In the **Develop** menu, select **Connect Web Inspector** or use the **⌥** + **⌘** + **I** keyboard shortcut.
  1. Go to the **Network** tab.
  1. Enable **Preserve log** by clicking the round icon in the upper left corner of the tab.
  1. Refresh the page or repeat the actions that resulted in the error.
  1. In the top right-hand corner of the tab, click **Export**.
  1. Attach the HAR file to your message to [support](https://center.yandex.cloud/support).

{% endlist %}

{% note alert %}

The HAR file contains cookies of your active session in Yandex Cloud. For security reasons, we recommend that you [terminate the session](https://auth.yandex.cloud/logout) after sending the file.

{% endnote %}