imported/w3c/web-platform-tests/css/css-text/text-transform/text-transform-upperlower-016.html [ ImageOnlyFailure ] The test failing since added and marked as ImageOnlyFailure in the general expectations. Later got marked as passed but it doesn't on the GTK port. result images can be seen here https://build.webkit.org/results/GTK%20Linux%2064-bit%20Release%20(Tests)/r232336%20(6827)/imported/w3c/web-platform-tests/css/css-text/text-transform/text-transform-upperlower-016-diffs.html