XSS Prevention in Node.js and Express
Cross-site scripting is still one of the easiest ways to turn a small bug into a full account takeover. I’ve seen Express apps with solid auth, rate limiting, and input validation still fall over because somebody rendered untrusted HTML into a page “just this once.” If you build Node.js apps that render HTML, accept user content, or expose JSON to frontend code, you need a clear XSS strategy. Not a pile of random middleware. A strategy. ...