Loading stylesheets from node_modules before rendering in Angular

I have successfully installed Ionicons in Angular 9 by running npm install --save [email protected]. In order to use them, I imported them into my styles.scss file as shown below:

$ionicons-font-path: "~ionicons/dist/fonts";
@import "~ionicons/dist/scss/ionicons.scss";

While everything functions correctly, the lighthouse score indicates that it significantly impacts page load speed. When importing a Google font in my index.html file, I typically include the following lines (note that preconnect and preload provide similar results):

<link rel="preconnect" as="font" href="https://fonts.googleapis.com/css?family=Work+Sans:400,600&display=swap"
    type="font/eot" crossorigin />

How can I achieve the same optimization for a library imported from node_modules? Your assistance is greatly appreciated.

cssangularsassnode-modulespreload

Answer №1

In my opinion, it would be beneficial to relocate the ionicons import path from style.scss to the angular.json file as shown below:

"styles": [ "
...,
./node_modules/ionicons/dist/scss/ionicons.scss",
...,
],

By doing this, when you serve or build your Angular application, the system will automatically handle loading, optimizing, and minimizing the scss for you. Therefore, there is no real necessity for using rel=preload.

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