On my site, assets are being loaded from wpmudev cdn and FontAwesome is being blocked by CORS policy. Getting the following error:
"Access to Font at 'http://hb.wpmucdn.com/fonts/fontawesome-webfont.woff2?v=4.7.0' from origin 'http://***....cloud***sapps.com' has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin 'http://wordpress-138014-484892.cloudwaysapps.com' is therefore not allowed access. The response had HTTP status code 403."
I'm 100% sure that the problem is not on my side as I can load the woff fonts from the same cdn if I disable hummingbird plugin. Also if it helps, this code is already present on the .htaccess file:
Header set Access-Control-Allow-Origin "*"