CSS – Font being blocked from Cross-Origin Resource Sharing Policy

If you don’t have mod_headers enabled you can enabled it with

sudo a2enmod headers

And then in your VirtualHost or .htaccess

# Allow access from all domains for webfonts.
# Alternatively you could only whitelist your
# subdomains like "subdomain.example.com".

<IfModule mod_headers.c>
  <FilesMatch "\.(ttf|ttc|otf|eot|woff|font.css|css|woff2)$">
    Header set Access-Control-Allow-Origin "*"
  </FilesMatch>
</IfModule>