The tests have been failing on ios-simulator since they were added with <https://trac.webkit.org/r197618>
This looks like a real bug related to border drawing, right?
I wonder where the border-radius comes from.
Could have sworn I marked these as image failures.
The border-radius looks like over-zealous iOS form control code kicking in.
Is this issue a blocker for "Add support for the object-position CSS property" (https://bugs.webkit.org/show_bug.cgi?id=122811 / rdar://problem/15836338), preventing that patch from making Safari technical previews?
It's not marked as dependency in the "depends on blocks" within that issue, but following progress leads here and no further.