Elliotte Rusty Harold wrote:
RFC 3023 states that for application/mathml+xml, "no content type has
yet been registered for MathML and so this media type should not be
used until such registration has been completed." Similar statements are
given for SVG, RDF, and XSLT.
However, the W3C Recommendation for SVG does define the image/svg+xml
MIME type and people have been using it for a year (since it changed
from image/svg-xml which was what the internet draft preceeding RFC 3023
used to say).
What is the current status of these registrations? None of them have
made it through the IANA registration.
The registration for SVG is in development, but has not yet been sent to
IANA.
At least none of them are listed
at http://www.isi.edu/in-notes/iana/assignments/media-types/application/
Has anybody actually begun the process of registering these four types?
Yes, the W3C SVG WG is working on it. Discussion hinges on such details
as whether to allow/require/disallow a charset (which would be a first
for image/* and would require more detailed server setup) and an
analysis of security considerations.
--
Chris