ARTICLE AD BOX
Media types (aka MIME types), defined in RFC 2045 can have parameters such as text/html; charset=UTF-8. There is also a 'personal use tree' for subtypes, e.g. text/prs.mytextformat.
How can I add personal use parameters on a standards tree type? I want to make a unique type for a photo sphere image that is still recognisable to a web browser as an image. Something like image/png; prs.sphere=true.
