I have reviewed this document as part of the security directorate's ongoing effort to review all IETF documents being processed by the IESG. These comments were written primarily for the benefit of the security area directors. Document editors and WG chairs should treat these comments just like any other last call comments. Summary: Ready This document is well written and clear on purpose. The security consideration section highlights well the issues with rendering fonts based on downloaded media type. This document simply is an attempt to simplify how the font media types are expressed, thus this document does not create any new security issues. Olafur