audio.js

var audioCtx = new AudioContext();
var source = audioCtx.createBufferSource();

fetch(
  'http://7xsym0.com2.z0.glb.qiniucdn.com/%E9%82%93%E7%B4%AB%E6%A3%8B%20-%20A.I.N.Y.%2528%E7%88%B1%E4%BD%A0%2529.mp3', {

})
.then(function(resp){
  resp.arrayBuffer().then(function(buffer){
    audioCtx.decodeAudioData(buffer, function(decodedData) {
        source.buffer = decodedData;
        source.connect(audioCtx.destination);
        source.start(0);
    })
  })
}).catch(function(e){
  console.log(e)
})