Post #13287 111 Jun 28, 2026, 16:29 UTC CORS explained in plain Englishhttps://sanyamserver.online/posts/cors/https://redd.it/1uhpazx@programmingreddit Engineering Notes CORS: What is it protecting? | Engineering Notes CORS is a browser security mechanism, not a server one. What the Origin header and preflight checks actually do, what CORS protects against, and why it is not CSRF protection.