Using Fonts from CDN     

If you’re building just a website with Quasar (so not using same basecode for an Android or iOS app or an Electron app), then it is even recommended that you use required fonts from a CDN instead of adding them to the app bundle (which is the default behavior).

What you need to do is to find the proper CDN for the Material Icons and Roboto fonts, like from https://fonts.google.com/?query=roboto.

In your src/index.html you need to add the link tag inside the head like this:

<head>
<!-- ........ -->
<link href="https://fonts.googleapis.com/css?family=Material+Icons|Roboto:100,300,400,500,700" rel="stylesheet">
</head>

And then in src/themes/app.mat.styl and src/themes/app.ios.styl to set a Stylus variable ($quasar-dont-import-fonts) to true. This informs Quasar not to import Fonts in the bundle:

// ...
$quasar-dont-import-fonts = true // <----
// ...
@import '~quasar-framework/dist/quasar.mat.styl'

IMPORTANT
Make sure you declare the Stylus variable before the import statement, otherwise it won’t work as intended.