使用createjs系列的preload.js调用函数后音频没有播放

Question

我在做一个 HTML5 游戏。我使用createjs来预加载图像。图像预加载完成后，需要自动播放背景音乐。我知道 chrome 的新音频政策。我很困惑我使用函数handleComplete来触发音频。为什么它仍然不起作用？我应该如何使它工作？这是我的代码：function Sound (id_str){ this.id = id_str; }Sound.prototype.play = function () {    //there are other logics, but can simply like below    let audio = document.getElementById(this.id);    audio.play().catch(e =>console.log(e));};var audio_bg = new Sound('bgm_id');windows.onload = function preload (handleFileProgress,handleComplete){    let manifest = [...];    loader = new createjs.LoadQueue(false);    loader.setMaxConnections(100);    loader.maintainScriptOrder=true;    loader.installPlugin(createjs.Sound);    loader.loadManifest(manifest);    loader.addEventListener('progress', handleFileProgress);     loader.addEventListener('complete', handleComplete);};function handleFileProgress(){...}function handleComplete(){    //...    audio_bg.play();}我发现的错误是：NotAllowedError: play() failed because the user didn't interact with the document first.