Get User from Twitter List and Request List Migrate (Twitter for Web)

twitterListMigration.js

//[\r\n]+
var users = [],
	listId = JSON.parse(document.getElementById('init-data').value).list_id, //'762404565366956032',
	headers = {
		"Accept" : "application/json, text/javascript, */*; q=0.01",
		"Accept-Language" : "en-US,en;q=0.5",
		"Content-Type" : "application/x-www-form-urlencoded; charset=UTF-8",
		"X-Requested-With" : "XMLHttpRequest",
	},
	formData = {
		//"_method":"DELETE",
		"authenticity_token": document.querySelector('[name="authenticity_token"]').value //"b788e2a2890d262b5bb3f1c56bac6e96109baac6"
	},
	counter = 0;

Notification
	.requestPermission().then(function(result){
		if ('granted' === result) {
			sendRequest(users[counter]);
		} else {
			alert('Notification Permission rejected.');
		}
	});

function sendRequest(user) {
	var xhr = new XMLHttpRequest(),
		strData = '',
		url = 'https://twitter.com/i/$userId$/lists/$listId$/members'; //https://twitter.com/i/4416500843/lists/739298270749429760/members

	//Set Custom URL
	url = url.replace(/\$userId\$/, user).replace(/\$listId\$/, listId);

	//Prepare Request URL
	xhr.open('POST', url);

	//Set Request Headers
	for (header in headers) {
		xhr.setRequestHeader(header, headers[header]);
	}

	//Set POST Data
	for(data in formData) {
		strData += decodeURIComponent(data+'='+formData[data])+'&';
	}

	//OnError binding
	xhr.onerror = function(e) {
		console.error(xhr.statusText);
		return new Notification('Something went wrong adding the Account at position: '+counter);
	};

	//OnSuccess binding
	xhr.onload = function() {
		if (xhr.readyState === 4) {
			if (xhr.status === 200) {
				counter++;
				if (undefined !== users[counter]) {
					sendRequest(users[counter]);
					console.log(users[counter], counter);

					return new Notification('Processing Account from position: '+counter);
				} else {
					return new Notification('No more Accounts to be added to current List');
				}
			} else {
				console.error(xhr.statusText);
				return new Notification('Server responded the request, but an Error occurred! Check the logged data on console!');
			}
		}
	};
	console.log('success!');
	return xhr.send(strData);
}


//Get All User Id's from List Page
(function () { //getUserIds
	var publics = [], privates = [];


	document.querySelector('.stream').querySelectorAll('.user-actions[data-user-id]').forEach(function(a,b,c){
		if (null === a.parentNode.querySelector('.Icon--protected')) {
			publics.push(a.dataset.userId);
		} else {
			privates.push(a.dataset.userId);
			//window.open('https://twitter.com/intent/user?user_id='+a.dataset.userId);
		}
	});

	copy(privates);

	return publics;
})();

/*
	Create List               : https://twitter.com/i/lists/create 
	Add/Delete User from list : https://twitter.com/i/712362530723631106/lists/762404565366956032/members
	Get User Profile          : https://twitter.com/intent/user?user_id=XXX
*/