使用MediaRecorder录制音频后，无法再在浏览器上播放音频

let recordedBlobs = [];

function handleDataAvailable(event) {
  if (event.data && event.data.size > 0) {
    recordedBlobs.push(event.data);
  }
}

mediaRecorder.ondataavailable = handleDataAvailable;

function download() {
  const blob = new Blob(recordedBlobs, { type: 'audio/webm' });
  const url = URL.createObjectURL(blob);
  const a = document.createElement('a');
  a.style.display = 'none';
  a.href = url;
  a.download = 'recorded_audio.webm';
  document.body.appendChild(a);
  a.click();
  setTimeout(() => {
    document.body.removeChild(a);
    URL.revokeObjectURL(url);
  }, 100);
}