imported/w3c/web-platform-tests/css/css-position/fixed-z-index-blend.html Description: This test is flaky failing on Mac wk1. It appears to have a regression point of r254092. History: https://results.webkit.org/?suite=layout-tests&test=imported%2Fw3c%2Fweb-platform-tests%2Fcss%2Fcss-position%2Ffixed-z-index-blend.html&platform=mac&limit=50000&flavor=wk1 Diff: https://build.webkit.org/results/Apple-Catalina-Release-WK1-Tests/r256827%20(3136)/imported/w3c/web-platform-tests/css/css-position/fixed-z-index-blend-diff.png
<rdar://problem/59550787>
I have marked this test as failing while this issue is investigated. https://trac.webkit.org/changeset/256830/webkit
it looks like this issue was fixed and then broken again. the original expectation needs to be updated because this is an image failure
Correction for test expectation: https://trac.webkit.org/changeset/267152/webkit