Secure Headers & CSP
Essential security best practices for modern web apps.
Security is not an afterthought. Configuring the right HTTP headers is the first line of defense against XSS, clickjacking, and other attacks.
Must-Have Headers
- Content-Security-Policy (CSP): Whitelists trusted content sources.
- Strict-Transport-Security (HSTS): Enforces HTTPS.
- X-Frame-Options: Prevents clickjacking.
- X-Content-Type-Options: Prevents MIME sniffing.
In Gladtek, we recommend configuring these headers at the edge (Cloudflare or Vercel) to ensure every response is secured before it reaches the browser.
Further Reading
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