Re: [w3c/editing] All browsers: Add ability to cancel character composition (IME) at the very beginning (Issue #508)

masayuki-nakano left a comment (w3c/editing#508)

IME may not be cancelable especially on Linux (out of scope of native app, IME is a middle ware). And some IMEs which expect the result may stop working if they get unexpected result especially on Windows.

I think that the safest way to cancel composition is `Element.blur()` and `Element.focus()` after first `compositionupdate`. Doing something at `compositionstart` may be risky if the browser exposes the native composition start event.

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Received on Friday, 12 December 2025 07:24:26 UTC