[Webkit-unassigned] [Bug 190290] Some combinations of Hebrew letters and vowel points display incorrectly

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=190290

--- Comment #3 from Myles C. Maxfield <mmaxfield at apple.com> ---
Created attachment 351689

  --> https://bugs.webkit.org/attachment.cgi?id=351689&action=review

Test

This is a fantastic bug report, thank you so much!

I'm trying to reproduce this bug to determine what is going wrong. This looks like a font-specific problem, so I downloaded Ezra SIL from https://scripts.sil.org/cms/scripts/page.php?item_id=SILHebrUnic2#3fee5fec and I put together the attached page which shows some of the preinstalled fonts on macOS. The HTML file in your zip file says that these tests were done with at least six other Hebrew fonts. Which fonts were those six?

I'm having trouble reproducing the problems shown in the screenshots you provided. If you open the attached HTML file, does it look like the attached screenshots?

I'm seeing that the behavior for shaping this text has changed between High Sierra and Mojave. Do you have a Mojave machine to test with?

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