<!-- Any copyright is dedicated to the Public Domain. http://creativecommons.org/publicdomain/zero/1.0/ --> <svg xmlns="http://www.w3.org/2000/svg"> <title>Test that filters and group opacity are applied in the correct order on an element</title> <!-- From https://bugzilla.mozilla.org/show_bug.cgi?id=524104 --> <filter id="filter" filterUnits="userSpaceOnUse" x="0" y="0" width="100%" height="100%"> <feFlood in="SourceGraphic" flood-color="blue"/> </filter> <rect width="1" height="1" filter="url(#filter)" opacity=".5"/> </svg>