SpeechRecognition ends after unspecified time

[adyry]

I'm trying to use WebSpeech API for 30 minutes videocalls transcript.

From what I observe, speech recognition works for more or less 2 minutes, after which it dispatches end event and there's no way to set the default timeout for this.

Since I end and start recognition on the microphone mute, I cannot use some funny fixes like:

recognition.onend = () => {
  recognition.start()
};

as it'd automatically restart recognition on the microphone mute.