scrolling is not working for suggestions

[Medanaresh]

hi, first of all thanks for providing the directive for controlling the list of suggestions with keyboard, i userd your directive for my work, the suggestions are controlled by key board, but list is not working, i given max-height=200px and overflow-y:scroll at that time the list suggestions are able to control by keybaord but foucs is not working (scrolling is not working). Please any one tell me how to fix this issue. Thanks in advance.