Explore a 27-minute conference talk that delves into a novel approach for protecting web users' privacy through JavaScript code monitoring based on code origin. Learn about the Temporal: Code-Origin Policy, which enhances the conventional same-origin policy standard and empowers users to customize their protection. Discover how this method addresses the ongoing issue of online privacy by providing formal assurance mechanisms for web applications. Gain insights into the policy certification process during development and runtime verification for enforcement. The talk covers the history of web security, current limitations, and the speaker's long-term vision for implementing this innovative privacy protection strategy.