Remove roboto dependency from paper-styles

[gar1t]

The roboto font is a dependency on a hard-coded CDN. Applications can
add the dependency and include the font as needed, rather than rely
paper-styles, which is used extensively throughout the Polymer
components. This is similar to other fonts listed in default styles
that might not be available on a system by default, but can be
resolved externally at the application level.

This change does not provide backward compatibility or a deprecation
period.

[gar1t]

I'm submitting this as a proposal. It address #22 and #111.

For some reason #22 was closed as being fixed by #44 - but I'm not seeing how that PR addresses this issue.

Listing Roboto as a default font is benign. Hard coding the font dependency on an external CDN is not. It's common enough to list fonts that may not be available on a system, finally specifying default fonts like "sans serif", "mono" etc as fall backs. There's no reason to enforce downloading a font from an external site. If the user wants the font, she can resolve the dependency at the application level.

[cordovapolymer]

Paper-styles must use font-roboto-local because polymer-build doesn't bundle it Polymer/polymer-build#155

[JosefJezek]

Use this repo https://github.com/StartPolymer/paper-styles-plus ;-)

[Yuen92]

Does any news regarding this issue?
In the version 3.0.1 it style use :
https://github.com/PolymerElements/font-roboto/blob/master/roboto.js

But I guess the dependency should be replace by this module :
https://github.com/PolymerElements/font-roboto-local

So do you know the best way to remove the dependency to the fonts.googleapis.com request ?
https://fonts.googleapis.com/css?family=Roboto+Mono:400,700|Roboto:400,300,300italic,400italic,500,500italic,700,700italic

Thanks

[quetzalsly]

2019 here, this is still an issue. Lighthouse gives me a failed report because of this. can we think of removing this or making it compatable with font-display: swap?

[Yuen92]

@quetzalsly :
If you need to remove the dependency you can use :
<script>window.polymerSkipLoadingFontRoboto = true;</script>

See the source code from PolymerElements/font-roboto :
https://github.com/PolymerElements/font-roboto/blob/master/roboto.js

Hope it's what you are looking for.