Note: This feature is only available in Web Workers.
The WorkerNavigator.globalPrivacyControl read-only property returns the user's Global Privacy Control setting for the current website. This setting indicates whether the user consents to the website or service selling or sharing their personal information with third parties.
The value of the property reflects that of the Sec-GPC HTTP header.
true if the user explicitly does not grant consent to sell or share their data. false if the user either grants consent, or has not indicated a preference.
console.log(navigator.globalPrivacyControl);
// "true" if the user has specifically indicated they do not want their data shared or sold, otherwise "false".