[Name] xmlBaseAncestors [Values] inherit, none, combine [Description] whether to inherit xml:base attributes from ancestors (like C14N 1.0) or not (like Exc C14n 1.0) or combine them (like C14n 1.1) [Default] 
combine
f a l s e
e m p t y
t r u e
X M L
n o n e
c o m b i n e
i n h e r i t