[whatwg] [Web Forms 2.0] type="url"

[fantasai]

# url
#    An IRI, as defined by [RFC3987] (the IRI token, defined in RFC 3987
#    section 2.2). UAs could, for example, offer the user URIs from his
#    bookmarks. (See below for notes on IDN.) The value is called url (as
#    opposed to iri or uri) for consistency with CSS syntax and because
#    it is generally felt authors are more familiar with the term "URL"
#    than the other, more technically correct terms.

Does this allow relative urls? Please specify explicitly.

~fantasai