Please enable the WebFonts extension on the Wikimedia Incubator, but disable it by default: $wgWebFontsEnabledByDefault = false;
Local discussion at https://incubator.wikimedia.org/wiki/Incubator:CP#Enable_several_extensions
Review of the extension at https://www.mediawiki.org/wiki/User:Krinkle/Extension_review/WebFonts
Thanks
Version: unspecified
Severity: enhancement