jQuery插件Audiofader不适用于Chrome

Question

我正在尝试使用此插件： https://www.jqueryscript.net/other/jQuery-Plugin-To-Play-Audios-On-Scroll-AudioFade.html。 它正在运行，但不适用于Chrome。 这行的JS文件中有一个domexception：

if (this.element.hasAttribute("loop")) {
    this.element.play();  <--------Domexception.

如何解决自动播放和Chrome的问题？

谢谢。

/*

AudioFade v1.0
Copyright (c) 2015 by Kameron Black
This work is licensed under the Creative Commons Attribution-ShareAlike 4.0 International License.
To view a copy of this license, visit http://creativecommons.org/licenses/by-sa/4.0/
or send a letter to Creative Commons, PO Box 1866, Mountain View, CA 94042, USA.

*/

function AudioFade(element, fadeIn, fadeOut, fadeDuration) {

this.element = $(element).get(0);
this.fadeIn = fadeIn;
this.fadeOut = fadeOut;
if (fadeDuration === undefined) {
    this.fadeDuration = 500;
} else {
    this.fadeDuration = fadeDuration;
}

if (this.element.hasAttribute("loop")) {
    this.element.play();      
} else {
    var noLoop = true;
}
this.element.volume = 0;

this.init = function() {
$(window).scroll(function() {

    this.element = $(element).get(0);
    this.fadeIn = fadeIn;
    this.fadeOut = fadeOut;
    if (fadeDuration === undefined) {
        this.fadeDuration = 500;
    } else {
        this.fadeDuration = fadeDuration;
    }

    if (noLoop === true) {

        var loopFlag = false;
        if ($(window).scrollTop() > this.fadeIn && loopFlag === false) {
            this.element.play();
            this.element.volume = 1;
            loopFlag = true;
        }

    } else {

        if ($(window).scrollTop() >= this.fadeIn && $(window).scrollTop() <= this.fadeIn + this.fadeDuration) { //fade in
            this.element.volume = ($(window).scrollTop() - this.fadeIn) / this.fadeDuration;
        } else if ($(window).scrollTop() >= this.fadeOut && $(window).scrollTop() <= this.fadeOut + this.fadeDuration) { //fade out
            this.element.volume = 1 - (($(window).scrollTop() - this.fadeOut) / this.fadeDuration);
        } else if ($(window).scrollTop() > this.fadeIn + this.fadeDuration && $(window).scrollTop() < this.fadeOut) {
            if (this.element.volume !== 1) {
            this.element.volume = 1;
            }
        } else {
            if (this.element.volume !== 0) {
            this.element.volume = 0;
            }
          }
        }
     });
    };
}