Simplify by using $.noop instead of null
Use prototype
Simplify by using prototype
+ $.featherlight.current
+ lodash & chai-properties
Translate all data-featherlight-* into config
Fix closeOnEsc
Improve behavior for multiple opened windows
Take into account if defaultPrevented
Avoid leaking if window removed, e.g. with pjax
Add listener when first window requiring it is opened.