title: Cache Icons Ionic PWA Angular
body: <p>I was wondering if someone can help me. Im developing a PWA using Ionic + Angular and hosting it using Firebase. The fact is when i lose internet, ionic icons desapired... I can't figuered it out how to modify my ngsw-config.json to get it works.. </p>
  
  <p>Here is my Service Worker Configuration file </p>
  
  <pre><code>{
    "$schema": "./node_modules/@angular/service-worker/config/schema.json",
    "index": "/index.html",
    "assetGroups": [
      {
        "name": "app",
        "installMode": "prefetch",
        "resources": {
          "files": [
            "/favicon.ico",
            "/assets/fonts/*",
            "node_modules/videogular2/fonts/videogular.css",
            "/index.html",
            "/*.css",
            "/*.js"
          ]
        }
      }, {
        "name": "assets",
        "installMode": "lazy",
        "updateMode": "prefetch",
        "resources": {
          "files": [
            "/assets/**",
            "/*.(eot|svg|cur|jpg|png|webp|gif|otf|ttf|woff|woff2|ani)"
          ]
        }
      }
    ]
  }
  </code></pre>