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7/2/2026
The original title is about a specific bug: Enter key submitting forms while Japanese users are still typing due to IME composition events.

The original title is about a specific bug: Enter key submitting forms while Japanese users are still typing due to IME composition events.

Original: The Enter key that submits your form while a Japanese user is still typing

Short summary

Japanese, Chinese, and Korean IMEs fire Enter events during character composition, causing premature form submission. Guard Enter handlers with event.isComposing (or keyCode 229), and test the fix with cjk-agent-fixtures to prevent regression. English-only test suites miss this bug entirely.

  • •IME composition fires Enter events identical to real Enter, submitting forms mid-word for CJK users
  • •Guard with event.isComposing or keyCode 229; disable Submit while composition is active
  • •English-only tests can't catch this; use cjk-agent-fixtures to test and prevent regression

Generated with AI, which can make mistakes.

#open-source#certification-education
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