// internal/shared/middleware/security_headers.go package middleware import "net/http" func SecurityHeaders(next http.Handler) http.Handler { return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { w.Header().Set("X-Frame-Options", "DENY") w.Header().Set("X-Content-Type-Options", "nosniff") w.Header().Set("Referrer-Policy", "strict-origin-when-cross-origin") w.Header().Set("Strict-Transport-Security", "max-age=63072000; includeSubDomains") w.Header().Set("Content-Security-Policy", "default-src 'self'") next.ServeHTTP(w, r) }) }