[Webkit-unassigned] [Bug 176284] New: Issue with ra with consonant conjugate (U+0CB0, U+200D, U+0CCD, any consonant)

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=176284

            Bug ID: 176284
           Summary: Issue with ra with consonant conjugate
                    (U+0CB0,U+200D,U+0CCD,any consonant)
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Text
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: parthakr at gmail.com
                CC: mmaxfield at apple.com

Created attachment 319746

  --> https://bugs.webkit.org/attachment.cgi?id=319746&action=review

Correct form for

Please review this webpage in Safari. 

http://kannadafont.blogspot.com/2017/09/blog-post.html

Safari fails to renders all 6 lines correctly.

1. Opentype font: Noto Sans Kannada font fails in Safari
2. Kannada sangam MN font fails in Safari
3. Kannada MN font fails in Safari
4. Canonical equivalence order. Opentype font: Noto Sans fails in Safari
5. Canonical equivalence order. Kannada sangam MN font fails in Safari
6. Canonical equivalence order. Kannada MN font fails in Safari

This issue is both in Apple core text engine as demonstrated in Noto Sans Kannada font. This font renders this combination correctly in EDGE, IE, chrome browsers, but fails in Safari.
Kannada sangam MN and Kannada MN fonts fails. If the webpage calls for Sansserif and serif CSS class. These two apple default fonts are loaded in Safari. Both fonts fail in both forms.

Please refer to this combination in unicode standard in the below link. Page 497 and 498

http://unicode.org/versions/Unicode9.0.0/UnicodeStandard-9.0.pdf


Please rectify.

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