Created attachment 348123 [details] Diff image The following three CSS3 Text Decoration reftests are failing on the WPE port, with minimal pixel difference: fast/css3-text/css3-text-decoration/repaint/underline-outside-of-layout-rect-altered.html [ ImageOnlyFailure ] fast/css3-text/css3-text-decoration/repaint/underline-outside-of-layout-rect-removed.html [ ImageOnlyFailure ] fast/css3-text/css3-text-decoration/repaint/underline-outside-of-layout-rect.html [ ImageOnlyFailure ]