1835287 - Tofu boxes are shown for some punctuations simbols if font visibility is set to 1 or 2

Status: RESOLVED WORKSFORME

(Core :: Layout: Text and Fonts, defect)

Description

[Simona Badau, Desktop QA]

Found in

• Nighty 115.0a1

Affected versions

• Nightly 115.0a1

Tested platforms

• Affected platforms: macOS 11.7, macOS 12

Preconditions

• in about:config, set the preference "layout.css.font-visibility.private" to 1.

Steps to reproduce

1. Open a private window.
2. Navigate to Wikipedia https://en.wikipedia.org/wiki/Punctuation.
3. Observe the punctuation symbols.

Expected result

• The punctuation symbols should be properly displayed in Private Browsing.

Actual result

• Tofy boxes are displayed instead of the punctuation symbols, look for: word separator middle dot, reversed comma, adlam initial exclamation mark, Ahom sign small section, etc.

Regression range
This is not a regression, the font visibility preference is set to 3 on all previous versions: ESR, Beta, and Release.

Additional notes

• The tofu boxes are also displayed when the preference "layout.css.font-visibility.private" is set to 2.
• The tofu boxes are not displayed in normal browsing or when "layout.css.font-visibility.private" is set to 3.

Comment 1

[BugBot [:suhaib / :marco/ :calixte]]

:sbadau, if you think that's a regression, could you try to find a regression range using for example mozregression?

Comment 2

[Simona Badau, Desktop QA]

This issue is no longer reproducible after the landing of Bug 1835271 - the tofu boxes mentioned in the Description are now displayed in the latest Nightly 116.0a1 on macOS 11.7 and macOS 13.

Comment 3

[Simona Badau, Desktop QA]

Based on the previous comment, setting this to Resolved Worksforme.