fix cors

main.go

@@ -34,6 +34,12 @@ func main() {
 
 	router := router.New()
 
+	router.Handle("OPTIONS /", func(w http.ResponseWriter, r *http.Request) error {
+		w.WriteHeader(200)
+		fmt.Fprintf(w, "ok")
+		return nil
+	})
+
 	router.Handle("POST /auth/register", func(w http.ResponseWriter, r *http.Request) error {
 		var body struct {
 			Email    string `json:"email"`