89713 2012-06-21 17:11:01 -0700 Pixel cracks possible in flexbox when deviceScaleFactor is greater than 1 2025-05-22 16:45:39 -0700 1 1 1 Unclassified WebKit Layout and Rendering 528+ (Nightly build) Unspecified Unspecified NEW InRadar, LayoutTestFailure P2 Normal --- 1 bdakin webkit-unassigned ahmad.saleem792 bdakin simon.fraser webkit-bug-importer zalan oldest_to_newest 655043 0 bdakin 2012-06-21 17:11:01 -0700 These three layout tests fail when you run them on a Retina Macbook Pro or any Mac running in HiDPI mode: ietestcenter/css3/flexbox/flexbox-align-baseline-001.htm ietestcenter/css3/flexbox/flexbox-align-center-001.htm ietestcenter/css3/flexbox/flexbox-align-center-002.htm The results seem to indicate pixel cracks are the problem. It would be nice in the short term to have a new directory like the platform directory for test results that are specific to different deviceScaleFactors. 655046 1 webkit-bug-importer 2012-06-21 17:11:59 -0700 <rdar://problem/11723744> 1936535 2 ahmad.saleem792 2023-02-24 08:56:03 -0800 We don't have these as failure on macOS text expectation but have it on iOS: https://searchfox.org/wubkat/source/LayoutTests/platform/ios/TestExpectations#1362 Are these [ ImageOnlyFailure ] tracked with this bug? Or we can close this because this was for Mac? 2119136 3 gsnedders 2025-05-22 16:45:39 -0700 On macOS we haven't run tests in HiDPI mode for a very long time; but we do for iOS. That said, this definitely still occurs: imported/w3c/web-platform-tests/css/css-flexbox/align-self-001.html has a whole load of cracks that makes it fail at 3x — and test results look much worse at 3x than 2x.