Issue 1
The expected behaviour should be changing role="presentation" to role="tab" for the list elements and adding id attributes to the embedded buttons for references of "aria-controls"
Issue 2
The referenced non-existent element IDs should be fixed.
Issue 1 https://github.com/kenwheeler/slick/blob/master/slick/slick.js#L1301 The ARIA role="presentation" under the role ARIA="tablist" is not correct. The required owned elements are "tab" ref: https://www.w3.org/TR/wai-aria/roles#tablist
Issue 2 https://github.com/kenwheeler/slick/blob/master/slick/slick.js#L1303 "aria-controls" is referencing noni-existent DOM elements with ID="navigation00"
What is the expected behaviour?