https://coulisses.net/wp-content/plugins/pwa-for-wp/assets/js/pwaforwp-download.js?ver=1.7.48

1jQuery(document).ready(function($) {
2	setTimeout(function() {
3		jQuery("a").on( "click", function(event) {
4			var isdownlod = event.target.attributes["download"] ? "1" : "0";
5			if(isdownlod == 1){
6				event.preventDefault();
7				console.log(isdownlod);
8				var url = jQuery(this).attr('href');
9				console.log("this: ",jQuery(this));
10				jQuery(this).removeAttr("href");
11				jQuery(this).attr("link", url);
12				var xhr = new XMLHttpRequest();
13			    xhr.open('GET', url, true);
14			    xhr.responseType = 'blob';
15			    xhr.onload = function(e) {
16			      if (this.status == 200) {
17			        var myBlob = this.response;
18			        console.log(myBlob);
19			        var link = document.createElement('a');
20			        link.href = window.URL.createObjectURL(myBlob);
21			        link.download = url;
22			        link.click();
23			        console.log("link",link); 
24			      }
25			    };
26			    xhr.send();
27			}
28		});
29	}, 1000);
30});