Content Security Policy (CSP) is a powerful browser-based security mechanism that helps protect web applications from attacks like Cross-Site Scripting (XSS) and data injection. This tutorial provides a deep, practical guide on how CSP works, how to configure it correctly, and how to integrate it into frameworks like Django using tools such as django-csp. It also explores advanced features like nonces, hashes, and strict policies for real-world applications.

---