package main import "net/http" func CorsMiddleware(next http.Handler) http.Handler { return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { w.Header().Add("Access-Control-Allow-Origin", "*") w.Header().Add("Access-Control-Allow-Credentials", "*") w.Header().Add("Access-Control-Allow-Headers", "*") next.ServeHTTP(w, r) }) }