WordPress/gutenberg

Custom font upload not working

Open

#72,265 建立於 2025年10月11日

在 GitHub 查看
 (15 留言) (0 反應) (1 負責人)JavaScript (9,607 star) (3,893 fork)batch import
Good First Issue[Feature] Font Library[Status] In Progress[Type] Bug

描述

Description

When trying to install this font it wouldn't complete and instead we are seeing a browser console error.

Step-by-step reproduction instructions

  1. Go to Appearance > Editor
  2. Styles > Fonts
  3. Try uploading this font:

AaDaoShuRi-LangManHeiTi-2.ttf.zip

Screenshots, screen recording, code snippet

The console renders:

Uncaught (in promise) SyntaxError: Invalid font data in ArrayBuffer

Th workaround is to convert it to a .woff2. I've used https://transfonter.org/

Environment info

WordPress 6.9 and the current stable version

Please confirm that you have searched existing issues in the repo.

  • Yes

Please confirm that you have tested with all plugins deactivated except Gutenberg.

  • Yes

Please confirm which theme type you used for testing.

  • Block
  • Classic
  • Hybrid (e.g. classic with theme.json)
  • Not sure

貢獻者指南

技術棧
javascriptreact
領域
frontend
議題類型
bug
難度面向新貢獻者的預計實作難度，1 表示很小改動，5 表示專家級工作。
3
預計時間有經驗貢獻者完成調查、實作、測試並準備 pull request 的粗略時間範圍。
1-3 hours
活動狀態議題目前的可參與程度：新鮮、活躍、陳舊、阻塞或等待維護者輸入。
blocked
清晰度議題是否清楚說明預期改動、驗收標準和下一步。
mostly clear
前置要求
Understand basic font file formatsFamiliarity with JavaScript promises
新手友善度1-100 的估計分數，表示該議題對首次貢獻者的友善程度。
30
研究方向
The issue occurs when uploading a .ttf font file; the console shows 'Invalid font data in ArrayBuffer'. The workaround is to convert to .woff2. Investigate how font files are validated in the editor, likely in the font upload component or API handler. Look at recent changes related to font asset loading. Check if the issue is specific to certain font types or to the parsing logic. Consider opening the linked file (AaDaoShuRi LangManHeiTi 2.ttf.zip) to reproduce the error.