[whatwg] Attribute datatypes on <embed>

How does <embed> allowing any attribute in no namespace interact with  
attributes that are defined to apply to all elements? That is, should  
datatype constraints on common attributes apply?

For example, is dir="blahblah" a conforming attribute on <embed>?

-- 
Henri Sivonen
hsivonen at iki.fi
http://hsivonen.iki.fi/