[Variable] feature list [Default Value] null [Overridden by] Step 7 [Description] A list of features that correspond to features that were requested, via feature elements, by the author and are supported by the user agent. Each item in the list corresponds to a feature element's name attribute, whether it is required, and any associated parameters. [Type] 
List
S t r i n g
U R I
L i s t
L i s t o f f i l e e n t r i e s
F i l e e n t r y
u n s i g n e d s h o r t
O b j e c t
T y p e
L i s t o f s t r i n g s