S3 CORS Rules for Custom Fonts in Firefox

README.md

1. Add the CORS Rules to your S3 Bucket
2. Invalidate the custom fonts in Cloudfront, or wait until the cache expires.

CORS Rules

<CORSConfiguration>
    <CORSRule>
        <AllowedOrigin>http://www.example.com</AllowedOrigin>
        <AllowedMethod>GET</AllowedMethod>
        <MaxAgeSeconds>3000</MaxAgeSeconds>
        <AllowedHeader>Content-*</AllowedHeader>
        <AllowedHeader>Host</AllowedHeader>
    </CORSRule>
</CORSConfiguration>