Mixed Mouse/Keyboard Navigation in IE9

[kathryn-thompson]

If you select a selectlist dropdown with the mouse and use the keyboard to navigate though the list (using cursor or letters to jump to the correct elements) you can't select anything with the enter ke.

It works as expected in chrome.

Any ideas? Presumably the enter key is being swallowed?

[kathryn-thompson]

It seems to be something related to the fact that in IE the code in add(value, text, callHandler) always returns

            if ($option[0].index < first)
                return;

The index is always 0 in IE9 when selecting an item using the keyboard. In chrome or when using a mouse in IE the index is correct.