material.svgAssetsCache injected in module of application - angular js

Question

I would like to know why the module material.svgAssetsCache is injected in code used on the Angular material website.

angular.module('MyApp',['ngMaterial', 'ngMessages', 'material.svgAssetsCache'])

Here is an example of code on the AM website: https://material.angularjs.org/latest/demo/button

I know the application uses svgs for icons, but it still works without injecting the material.svgAssetsCache library.

Answer 1

According to a comment in the Angular Material repository, that file should only be used in a CDN Server or an Edge Server:

/**
  * This 'svg-assets-cache.js' file should be loaded to a CDN or edge-server (currently S3).
  * The CDN url (for this file) is then used in `doc/app/js/codepen.js#L59` to identify an
  * external JS file that CodePen should load for 'launched' demos.
  */

So, at the end you are right. You don't need to include it if you are self hosting the material icons. It's only for CodePen.