This blog post discusses the challenges of implementing a Content Security Policy (CSP) for web applications and introduces a dynamic approach to applying a CSP for the script-src directive. The importance of a CSP is highlighted, as it helps prevent malicious actors from executing scripts on a website and attacking visitors. However, setting up a CSP can be difficult due to its fragile nature and tedious maintenance requirements. To overcome these challenges, the blog post introduces the concept of dynamically-generated nonces, which guarantee integrity and prevent cross-site scripting attacks. The blog post also provides a step-by-step guide on how to implement this dynamic approach using Netlify Edge Functions, making it easier for developers to implement an effective CSP without worrying about manual maintenance.