I've started to make a little speech recognition app

let loading = document.getElementById('loading')
let main = document.getElementById('main')
let speech = new webkitSpeechRecognition();

let isLoading = true

speech.addEventListener('error',(e)=>{
  switch(e.error){
    case 'not-allowed':
      // Visual code here left out
      break;
    default:
      console.error(e)
      break;
  }
})

speech.addEventListener('end',()=>{
  speech.start();
})

function parseResult(result){
  if(result.type == 'result'){
    let text = result.results[result.resultIndex][0].transcript
    
     // Visual code here left out
    
  }
}

speech.onresult = parseResult;
speech.continuous = true;
speech.start();

And it works well once, then once I refresh it throws this every 5 seconds or so:

This is fixed by going to chrome://restart, but I would like it if users didn't have to restart their entire browser every time they went to the app.

Any idea of what's happening?