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fix: cleanup SpeechRecognition on component unmount #1826

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fix: cleanup SpeechRecognition on component unmount #1826

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17 changes: 17 additions & 0 deletions packages/x/components/sender/hooks/use-speech.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -134,5 +134,22 @@ export default function useSpeech(
}
});

// Cleanup SpeechRecognition on component unmount
React.useEffect(() => {
return () => {
if (recognitionRef.current) {
try {
recognitionRef.current.stop();
} catch (e) {
// Recognition might not be started
}
recognitionRef.current.onstart = null;
recognitionRef.current.onend = null;
recognitionRef.current.onresult = null;
recognitionRef.current = null;
}
Comment on lines +140 to +150
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@gemini-code-assist gemini-code-assist bot Mar 16, 2026

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high

The current cleanup logic calls recognitionRef.current.stop() before nullifying the event handlers. The stop() method can trigger the onend event handler, which in turn calls setRecording(false). Since this cleanup function runs on component unmount, this will cause a state update on an unmounted component, leading to a warning from React.

To prevent this, the event handlers should be nullified before calling stop(). It's also slightly cleaner to store recognitionRef.current in a local variable to avoid repeated property access.

      const recognition = recognitionRef.current;
      if (recognition) {
        // Nullify handlers first to prevent state updates on an unmounted component.
        recognition.onstart = null;
        recognition.onend = null;
        recognition.onresult = null;

        try {
          recognition.stop();
        } catch (e) {
          // Recognition might not be started
        }
        recognitionRef.current = null;
      }

};
}, []);

return [mergedAllowSpeech, triggerSpeech, recording] as const;
}
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