Why Your Content Security Policy Fails in Production: 5 Single-Page App Edge Cases
Every engineering team eventually receives a compliance ticket: "Missing Content-Security-Policy HTTP header." On paper, CSP looks simple: instruct the browser which origins can execute scripts, load stylesheets, or open network connections. You draft a basic policy, test your local build, and deploy. Then production breaks. Dynamic script chunks fail with Refused to execute inline script, telemetry streams to Sentry drop to zero, and third-party widgets fail to load. Modern frontend architectur
🎯 Vulnerability: Web Security Vulnerability
💡 Defense Fix: Implement strict input validation, contextual output encoding, and enforce least-privilege authorization controls.