LayoutTests/fast/forms/HTMLOptionElement_label07.html - WebKit - Git at Google

 The select item below has a label specified, and enclosed text that is whitespace. There should be no text shown in the select box.<br>
 <select><option label="text"> </option></select>
	The select item below has a label specified, and enclosed text that is whitespace. There should be no text shown in the select box.<br>
	<select><option label="text"> </option></select>