AutoComplete - Combobox option js error in IE "Stop running this script

AutoComplete - Combobox option js error in IE "Stop running this script

We have a simple combobox we are trying to convert to autocomplete - combobox.  This provides the typeahead search as well as the clickable arrow for normal combobox functionality.

Works fine in CHROME and FIREFOX but IE pops an error "Stop running this script".  There are about 800 items in the combobox.

We don't have issues with Combo boxes that have less items but why would IE be stuck in some kind of loop when chrome and firefox don't.

any fixes or adjustments to initialization to solve this issue would be great!