Securing Web Applications with Content Security Policy

Web security is a critical priority, yet cross-site scripting (XSS) remains one of the most common and dangerous vulnerabilities. Implementing a robust Content Security Policy (CSP) is one of the most effective ways to defend your applications against these injection attacks. In this text-only course, you will transition from understanding basic browser security to deploying advanced CSP configurations. You will learn how to design, test, and deploy secure policies that restrict malicious scripts without breaking your application's functionality. What you'll learn: Learn the core security principles of CSP and how it mitigates XSS. Configure essential CSP directives for scripts, styles, and connections. Implement advanced security mechanisms using nonces, hashes, and strict-dynamic policies. Set up real-time violation reporting to monitor policy breaches in production. Integrate CSP seamlessly with modern single-page applications. Refine and deploy policies safely using report-only mode. Starting with foundational browser security concepts, the written lessons guide you step-by-step through practical configurations and modern deployment workflows. This course is designed for web developers and security beginners, with no prior security experience required. Start reading today to fortify your web applications against modern security threats.