I added the css styling
.ui-autocomplete{
max-height: 100px;
overflow-y: auto;
overflow-x: hidden;
padding-right: 20px;
}
to show the vertical scrollbar for jquery ui autocomplete list as listed in the jquery ui website. I see the scrollbar on desktop but not on mobile. for example I can see the scrollbar on safari on my desktop. but when I try to view using safari on ipad or iphone, it does not show the scrollbar. any ideas as to what I could be doing wrong? Thanks!