我正在尝试创建一个下载按钮，下载该页面上的图像...只有一个捕获

Question

我试图在网页上下载图片，这很简单。但是，图像不以jpg / png结尾，它们是base64字符串。我将发布一个base64的例子和我试图编码的功能，使这个按钮下载..任何帮助将不胜感激...

iVBORw0KGgoAAAANSUhEUgAAAAUA
AAAFCAYAAACNbyblAAAAHElEQVQI12P4//8/w38GIAXDIBKE0DHxgljNBAAO
9TXL0Y4OHwAAAABJRU5ErkJggg==

function downloadPhotos() {
	// This code is part of my code for another project (Justin Baskaran)
   var images = document.getElementsByTagName('img');
   var srcList = [];
   var i = 0;

	setInterval(function(){
	if(3 > i){
	    srcList.push(images[i].src);
	    var link = document.createElement("a");
	    link.id=i;
	    link.download = images[i].src;
	    link.href = images[i].src;
	    console.log("hi")
	    link.click();
	    i++;
	}
	},1500);

	}