问html5视频元素有没有bug？它不会在几个小时后继续播放内容

EN

<video id="mediaplayer" 
       autoplay="autoplay"  
       poster="/images/blackscreen.jpg"  
       type="video/webm"
       loop="true"></video>

<script>
var video_idlea = 'http://localhost/loop.mp4';
function video_idle() {
  $('#mediaplayer').prop('loop', true);
  $('#mediaplayer').attr('src', video_idlea).show();
  mediaplay_video= document.getElementById('mediaplayer');
  mediaplay_video.play();  
  mediaplay_video.onended = function(e) {
    console.log('>>> Playing finished: ', e);
  };
}

function video_play_any(input) {
  $('#mediaplayer').prop('loop', false);
  $('#mediaplayer').attr('src', input).show();
  mediaplay_video= document.getElementById('mediaplayer');
  mediaplay_video.play();  
  mediaplay_video.onended = function(e) {
    console.log('>>> Playing finished: ', e);
    video_idlea = 'http://localhost/idle.avi';
    video_idle();
  };
}

video_play_any('http://localhost/loop.mp4');
</script>