On bug 214414 the WPT css folder was updated. This are new ref-test failures for css-backgrounds: imported/w3c/web-platform-tests/css/css-backgrounds/background-attachment-margin-root-001.html [ ImageOnlyFailure ] imported/w3c/web-platform-tests/css/css-backgrounds/background-margin-iframe-root.html [ ImageOnlyFailure ] imported/w3c/web-platform-tests/css/css-backgrounds/background-margin-root.html [ ImageOnlyFailure ] imported/w3c/web-platform-tests/css/css-backgrounds/background-margin-transformed-root.html [ ImageOnlyFailure ] imported/w3c/web-platform-tests/css/css-backgrounds/background-margin-will-change-root.html [ ImageOnlyFailure ] imported/w3c/web-platform-tests/css/css-backgrounds/background-position-xy-three-four-values-passthru.html [ ImageOnlyFailure ] imported/w3c/web-platform-tests/css/css-backgrounds/background-size/background-size-near-zero-gradient.html [ ImageOnlyFailure ] imported/w3c/web-platform-tests/css/css-backgrounds/background-size/background-size-near-zero-png.html [ ImageOnlyFailure ] imported/w3c/web-platform-tests/css/css-backgrounds/background-size/background-size-near-zero-svg.html [ ImageOnlyFailure ] imported/w3c/web-platform-tests/css/css-backgrounds/border-width-pixel-snapping-001-a.html [ ImageOnlyFailure ]
<rdar://problem/66048399>
imported/w3c/web-platform-tests/css/css-backgrounds/background-position-xy-three-four-values-passthru.html has been fixed by r282234.
WPT has removed the following tests as of 8f71659306c53f3cabad054ed02ac7c4d14de693: css/css-backgrounds/background-size/background-size-near-zero-gradient.html css/css-backgrounds/background-size/background-size-near-zero-png.html css/css-backgrounds/background-size/background-size-near-zero-svg.html css/css-backgrounds/background-margin-iframe-root.html css/css-backgrounds/background-margin-transformed-root.html css/css-backgrounds/background-margin-will-change-root.html css/css-backgrounds/border-width-pixel-snapping-001-a.html
And: css/css-backgrounds/background-attachment-margin-root-001.html