As Chromium layout tests have been moved to the web platform test, css/filter-effects/filter-region-transformed-composited-child-001.html test was also moved to WPT. - Chromium Bug: https://bugs.chromium.org/p/chromium/issues/detail?id=1063749 - Chromium patchset: https://chromium-review.googlesource.com/c/chromium/src/+/2143021. - WPT Test: http://wpt.live/css/filter-effects/filter-region-transformed-composited-child-001.html But, the test is failing on Safari - https://wpt.fyi/results/css/filter-effects/filter-region-transformed-composited-child-001.html?diff&filter=ADC&run_id=496310006&run_id=490340006. When WPT is synced into WebKit, the test expects to fail in WebKit. Please, someone checks the test failure if the test is in WebKit.