I have reviewed this document as part of the SEC area 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: This is a very short draft that updates a single media type label in RFC 7866 to resolve a documented inconsistency. As it does not introduce any new protocol behavior or functionality, it does not raise any new security concerns. 

Best regards, Linda Dunbar