[Webkit-unassigned] [Bug 124775] New: background-repeat: repeat-y is imprecise for certain background-size values

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=124775

           Summary: background-repeat: repeat-y is imprecise for certain
                    background-size values
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: All
        OS/Version: All
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: CSS
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: derek.detweiler at gmail.com


Overview: background-size appears to incorrectly scale when repeated across background, causing it to repeat more times than it should.

Steps to reproduce:
Visit this link for a working example: http://jsfiddle.net/vwKv3/1/

Actual results:
Note that the triangles in columns 5 and 7 (CSS classes "repeater e" and "repeater g" respectively) show a portion of an additional triangle at the bottom of the column.

Expected results:
The triangle stack should repeat a precise number of times according to the background-size of the div, have an extra bit of triangle at the bottom.

Platforms:
Seems to happen on Chrome on both Win 7 and Win Vista, Safari and Chrome on Mac OSX

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