k.lapy.link - Font fallback renders the character separately

[saschanaz]

URL: https://k.lapy.link/notes/9kkx62bpu7

Browser / Version: Firefox 120.0
Operating System: Windows 10
Tested Another Browser: Yes Chrome

Problem type: Design is broken
Description: Items not fully visible
Steps to Reproduce:
The Hangul tone marks (U+302E, U+302F) does not properly contribute to the font fallback; Firefox just renders the character separately, while Chrome properly combines the character with the fallback font. In this case the page font is Pretendard JP and the fallback font is Malgun Gothic, the Windows default Hangul font.

View the screenshot

Browser Configuration

• gfx.webrender.all: true
• buildID: 20231006152733
• channel: nightly
• hasTouchScreen: true
• mixed active content blocked: false
• mixed passive content blocked: false
• tracking content blocked: false

View console log messages

From webcompat.com with ❤️

[saschanaz]

Filed https://bugzilla.mozilla.org/show_bug.cgi?id=1857814 too.

[softvision-raul-bucata]

We appreciate your report. I was able to reproduce the issue by following the steps to reproduce

Tested with:

Browser / Version: Firefox Release 118.0.1 (64-bit)/ Firefox Nightly 120.0a1 (2023-10-08) (64-bit) Chrome Version 117.0.5938.150 (Official Build) (64-bit)
Operating System: Windows 10 PRO x64

Notes:

1. Reproducible regardless of the status of ETP.
2. Reproducible on the latest build of Firefox Nightly and Release.
3. Works as expected using Chrome.

Moving this to NeedsDiagnosis for further investigations.

[qa_41/2023]

[ksy36]

Moved to bugzilla: https://bugzilla.mozilla.org/show_bug.cgi?id=1891759