GeoJSONWG/draft-geojson — pull request #11 by sgillies (2013-06-14 17:16:15+00:00)
Title: Addition of a GeoJSON profile URI (ala RFC6906)

RFC4267 doesn't specify any media type parameters, but a profile
parameter is a big help to GeoJSON. Without it, we'd probably need
a custom media type. GeoJSON's use of a profile parameter does not
alter the (JSON) processing model, it only indicates that the root
object contains geographic features to be interpreted according to
the GeoJSON spec.