clientToken when initializing the RUM SDK. The proxy knows the real client token, but the end user does not.clientToken before forwarding the data to FlashDuty.session.id associated with it, which anonymizes the data but allows you to understand trends. You can choose to write code to capture user data (such as names and email addresses) and then use that data to enrich and modify RUM sessions, but this is not required.enablePrivacyForActionName option in combination with the mask privacy setting. This automatically replaces all action names that have not been overridden with the placeholder Masked Element. This setting is also designed to be compatible with existing HTML override attributes.