show source mp4
// ==UserScript==
// @name Download Soundgasm Links
// @description show source mp4
// @match https://soundgasm.net/u/*/*
// @version 0.0.1.20170312174406
// @namespace https://greasyfork.org/users/109501
// ==/UserScript==
var html = document.documentElement.innerHTML;
var searchstring = 'm4a: "';
var pos = html.indexOf(searchstring)+6;
var endpos = html.indexOf('"', pos);
var link = html.substr(pos, endpos-pos);
var linknode = document.createElement("a");
var linktext = document.createTextNode("DOWNLOAD!");
linknode.setAttribute('href',link);
linknode.appendChild(linktext);
var body = document.getElementsByTagName('body')[0];
body.appendChild(linknode);