My two questions for all JavaScript libraries as an enterprise LoB dev are:

(1) What browser versions are supported? (Translation: are you willing to do/accept help with the work to support business users?)

Edit: answered at the bottom, IE9+

(2) How well is deep nesting supported? (Translation: can my parent-child-grandchild-greatgrandchild piles of data entry forms use this?)

Thanks for the time invested in creating this library and the associated documentation!