The fearless warrior of code, unfazed by bugs, deadlines, or production incidents, suddenly trembles at the sight of a CORS error. That insidious beast that appears when your frontend tries to talk to an API on a different domain, and the server says "Nope, not authorized!" Even the bravest developers curl into a fetal position when faced with the dreaded Access-Control-Allow-Origin header issues. It's not the error that's scary—it's the rabbit hole of proxies, headers, and server configurations you're about to dive into for the next 3 hours.