[Webkit-unassigned] [Bug 151150] New: Half-pixel borders rounded to 0 on non-retina screen

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=151150

            Bug ID: 151150
           Summary: Half-pixel borders rounded to 0 on non-retina screen
    Classification: Unclassified
           Product: WebKit
           Version: Safari 9
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Layout and Rendering
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: nvasilyev at apple.com
                CC: dino at apple.com

Reduction:
data:text/html,<div%20style="border:0.5px%20solid%20black">Box</div>

Actual:
The black border is invisible on non-retina screen.

Expected:
Ideally, I'd love to see the border to be half transparent black border on non-retina screen. E.g.: border: 1px solid rgba(0,0,0,0.5)

Notes:
In Web Inspector, I had to define lots of retina-specific half-pixel borders inside of "@media (-webkit-min-device-pixel-ratio: 2)". Would be nice I didn't have to do it.

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