Cloudfront CDN Font blocked by CORS policy blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource
Did you figure it out yet? A link to your cdn or the website that was to use the cdn would be helpful.
It could be that Chrome does a preflight OPTIONS request to your distribution, and that your origin doesn't have the header set for that. You can check this with curl -I -X OPTIONS http://cdn.example.com/ThemeIcons.woff?387osh