fix: Prevent duplicate message submission with Korean/CJK IME input #146
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Problem
When users typed Korean (or other CJK languages) and pressed Enter, the message was submitted twice due to IME composition events:
This caused:
This issue particularly affected users in East Asia (Korea, Japan, China) who rely on IME for daily communication.
Solution
Implemented industry-standard IME composition event handling:
Primary Fix: Composition Event Tracking
compositionstartandcompositionendevent listenersisComposingflagSecondary Protection: 50ms Throttle
This is the same approach used by major web applications like Gmail, Slack, and Discord for reliable IME handling.
Testing
All 6 test cases passed in Extension Development Host:
Impact
Code Changes
src/script.ts(+26 lines, -1 line)For East Asian Users
이 수정으로 한국어, 일본어, 중국어 사용자들의 입력 경험이 크게 개선됩니다.
더 이상 메시지가 중복으로 전송되지 않습니다! 🎊
この修正により、日本語入力での二重送信の問題が解決されます。
此修复解决了中文输入时的重复提交问题。
Note: This fix benefits all IME users worldwide, improving accessibility and user experience for non-Latin script languages.
Closes #130 and #132