Created attachment 34668 [details] Test Case If you have an open drop down, and the page scrolls (with a window.scroll event or something like it), the drop down will be detached. Attached is a test case that will reproduce the bug.
<rdar://problem/7137099>
What do other browsers do?
IE is the only one that behaves properly, scrolling the popup window with the rest of the page. Other browsers I tested that fail: Windows: - Safari - Chrome - Firefox - Opera Mac: - Safari