imported/w3c/web-platform-tests/css/css-will-change/will-change-transform-huge-offset-scrolled.html is a flaky imageonlyfailure on iOS 14-Simulator wk2. HISTORY: https://results.webkit.org/?suite=layout-tests&test=imported%2Fw3c%2Fweb-platform-tests%2Fcss%2Fcss-will-change%2Fwill-change-transform-huge-offset-scrolled.html DIFF IMAGE LINK: https://build.webkit.org/results/Apple-iOS-14-Simulator-Release-WK2-Tests/r277496%20(1457)/imported/w3c/web-platform-tests/css/css-will-change/will-change-transform-huge-offset-scrolled-diffs.html Images attached below.
Created attachment 428671 [details] Image Diffs for flaky failure Attaching image diffs from flaky failing test.
The test is also causing a slow down on EWS here: https://ews-build.webkit.org/#/builders/51
It appears the tests were re-imported at r277081: https://trac.webkit.org/changeset/277081/webkit
It also appears that this has been flaky failing since the test was re-imported. I have updated the expectations to Pass ImageOnlyFailure here since it was causing a slow-down for EWS: https://trac.webkit.org/changeset/277511/webkit
I was able to reproduce the failure at iOS-14-Simulator Production ToT using the following test: run-webkit-tests --ios-simulator imported/w3c/web-platform-tests/css/css-will-change/will-change-transform-huge-offset-scrolled.html --iterations 100 -f
<rdar://problem/78035845>