Why does an Ionic app download JS files from the project again?

Hello guys, I have component rendering issues.

When working on an Ionic project or any kind of simple web project in a local environment, I have all the necessary files within the project folder. So Images, all other js files are loaded really fast because they are already installed.
Likewise, when I download an app developed using the Ionic framework to a mobile device, I expect the components to load quickly since the @Ionic/core packages are already installed in the application.

However, in reality, the components are not displayed until the Ionic-related JS files are downloaded on the webview browser, causing a slight delay before rendering.

My development environment uses Angular 17, and all routes are lazy-loaded. I discovered this issue in the livereload debugging environment.

I am unsure whether this issue arises from:

  • My misunderstanding of default browser behavior
  • The browser functioning as I expected, but Angular’s lazy loading mechanism causing the problem
  • A problem specific to Ionic’s live reload environment

I would be grateful if anyone could provide an explanation about this issue.

I hope to gain a deeper understanding of this problem and find a solution to eliminate the delay in component rendering.

Thanks.