There was P3P, started over two decades ago, which never gained traction. https://en.wikipedia.org/wiki/P3P https://en.wikipedia.org/wiki/P3P https://www.w3.or

There was P3P, started over two decades ago, which never gained traction. https://en.wikipedia.org/wiki/P3P https://en.wikipedia.org/wiki/P3P https://www.w3.org/P3P/ https://www.w3.org/P3P/ From Wikipedia: As an example, a user may store in the browser preferences that information about their browsing habits should not be collected. If the policy of a Website states that a cookie is used for this purpose, the browser automatically rejects the cookie.