reposition dropdown when window resizes

[ben hockey]

if i change the _autoComplete.html test page and change the first label like this

<label id="setvaluetest_mylabel" for="setvaluetest" style="display:inline-block;width:40%">US State test 1 (200% Courier font):</label>

then open the FilteringSelect? test page and open the first FilteringSelect? and resize the page you can observe that the dropdown does not reposition relative to the input.

ideally, i'd like to see the dropdown reposition somehow.

[bill]

Duplicate of #5777.