Ionic 4 angular and hot reload

Hi i try to setup an hot reload for my ionic 4 project with angular .
I try to follow this article https://medium.com/wizardnet972/hot-module-replacement-with-angular-cli-5fc7a3ae4a9c but it is not work. ionic can load a new code without reload a browser but It always reload a full application
anybody can tell me is it possible?