Steps to reproduce: 1. open the following URL data:text/html,<select name="test" id="test" multiple onchange="alert('change');"> <option value="1">Option 1</option> <option value="2">Option 2</option> <option value="3">Option 3</option> <option value="4">Option 4</option> <option value="5">Option 5</option> <option value="6">Option 6</option> <option value="7">Option 7</option> </select> 2. click on the scrollbar to show Option 5+. Expected: The listbox scrolls the content. Actual: The listbox scrolls the content, and 'change' event is dispatched even though selection state is not changed. https://code.google.com/p/chromium/issues/detail?id=244406
*** This bug has been marked as a duplicate of bug 118019 ***