Soundcloud Scrub Login bypass (UserScript)

script.js

// ==UserScript==
// @name         soundcloud
// @namespace    https://soundcloud.com/
// @version      0.1
// @include      http*://*soundcloud.com*
// @description  try to take over the world!
// @author       You
// @icon         https://www.google.com/s2/favicons?domain=soundcloud.com
// @grant        none
// @run-at		 document-start
// ==/UserScript==

(function() {
    'use strict';

	function hookedSignupModule(e, t, n){
		e.exports = {
			shouldBlockScrubbing: function (e) { return false; },
			pauseAndPromptSignup: function () {}
		}
	}

	function makeDummyProxy(){
		var target = function(){};
		return new Proxy(target, {
			get: function(target, p, receiver){
				return makeDummyProxy();
			},
			apply: function(target, thisArg, args){
				return makeDummyProxy();
			}
		});
	}

	function proxyPush(realPush){
		return new Proxy(realPush, {
			apply: function(target, thisArg, args){
				var item = args[0];
				var moduleId = item[0][0];
				var exports = item[1];
				
				for(var ordinal in exports){
					var vtable = {};
					var fproxy = makeDummyProxy(false);
					if(typeof(exports[ordinal]) === 'function'){
						try {
							exports[ordinal](vtable, {}, fproxy);
						} catch(e){
							//console.warn(`Skipping module ${moduleId}, ordinal ${ordinal}`);
						}
					
						if(!('exports' in vtable)) continue;
						if(typeof(vtable.exports) !== 'object') continue;
						if(!('shouldBlockScrubbing' in vtable.exports)) continue;

						exports[ordinal] = hookedSignupModule;
					}
				}

				return Reflect.apply(target, thisArg, args);
			}
		});
	}

	var webpackProxy = [];
	window.webpackJsonp = new Proxy(webpackProxy, {
		get: function(tgt, propName, receiver){
			var prop = Reflect.get(tgt, propName, receiver);
			if(propName === "push"){
				return proxyPush(prop);
			}
			return prop;
		}
	});
})();