[Webkit-unassigned] [Bug 173828] New: Japanese open parenthesis overlaps to following character when OpenType "vhal" or "vpal" features are applied in vertical writing mode.

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=173828

            Bug ID: 173828
           Summary: Japanese open parenthesis overlaps to following
                    character when OpenType "vhal" or "vpal" features are
                    applied in vertical writing mode.
           Product: WebKit
           Version: Safari 10
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Text
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: baba at bpsinc.jp
                CC: mmaxfield at apple.com

Created attachment 313819

  --> https://bugs.webkit.org/attachment.cgi?id=313819&action=review

screenshot

Steps to reproduce:

1. Install "Noto Serif CJK JP" from https://www.google.com/get/noto/
2. Open https://jsbin.com/duhayezuka/3/edit?html,css,output

Actual results:

"halt" and "palt" works correctly in horizontal writing mode.
However, when "vhal" or "vpal" are applied in vertical writing mode, the open parenthesis overlaps to the following character (please see the attached screenshot).

Environment:

Safari Version 10.1.1 (12603.2.4)

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