Hello edwardsmarkff,

I meant that if you, for example, use autoComplete="inline" the input shows a completion helper that appears next to the input cursor. This helper shows the first possible match by completing the input text and when you click outside the combobox its value is updated.
With autoComplete="none", that doesn’t happen. Also the drop down list items are not filtered. You are right that pressing Enter when an item is selected updates the value. Using the incremental-search-mode property is a good solution.

Best Regards,

Smart HTMLElements Team