const ALLOWED_CORS_ORIGINS = [ "https://beta.impress.openneo.net", "https://impress.openneo.net", "http://localhost:3000", ]; export function applyCORSHeaders(req, res) { const origin = req.headers["origin"]; if (ALLOWED_CORS_ORIGINS.includes(origin)) { res.setHeader("Access-Control-Allow-Origin", origin); res.setHeader("Access-Control-Allow-Methods", "*"); res.setHeader("Access-Control-Allow-Headers", "*"); } }