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A step-by-step guide to implementing secure HTTP headers on websites powered by Cloudflare using Cloudflare Workers.

There are many ways to implement HTTP response headers to secure sites from common vulnerabilities, such as XSS, Clickjacking, MIMI sniffing, cross-site injection, and many more. Its widely adopted practice and recommended by  OWASP.

Previously, I wrote about  implementing headers in a web server like Apache, Nginx, and IIS. However, if you are using  Cloudflare to protect and supercharge your sites, you may take advantage of  Cloudflare Workers to manipulate the HTTP response headers.

Cloudflare Workers is a  serverless platform where you can run JavaScript, C, C++, Rust code. It gets deployed on every Cloudflare data center, which is more than 200 worldwide.

The implementation is very straightforward and flexible. It gives you the flexibility to apply the headers on the entire site, including the subdomain or specific URI with a  matching pattern using  Regex.

For this demonstration, I’ll be using the  code by Scott Helme.

Let’s get it started…👨‍💻

#security #cloudflare #serverless