Yeah, I've seen that sort of thing. It's usually a malformed CSS or a broken SVG that gets pulled in by an untrusted template. The code keeps calling itself recursively, and the browser just keeps redrawing until it’s a spiral nightmare. It’s not a threat in the sense of an exploit, but it’s a perfect example of how a UI bug can look like a security hole and make you wonder if the whole stack is compromised. Fix it by sanitizing the inputs that generate the markup and ditch any third‑party libraries that aren’t signed. Then your pages will stay flat, not fractal.