adding options handle

delivery/controller/users_controller.go

@@ -20,6 +20,9 @@ func (uc *UsersController) Route() {
 	rg:= uc.rg.Group("/users")
 	rg.Use(middleware.RateLoginMiddleware())
 	rg.Use(middleware.CORSMiddleware())
+	rg.OPTIONS("/login", func(c *gin.Context) {
+		c.Status(http.StatusNoContent)
+	})
 	{
 		rg.POST("/login", uc.Login())
 	}