function userAction() { var x = document.getElementById('emailValue').value; //var y = document.getElementById('boo'); //y.innerHTML=x; //var message = {"status":"subscribed","email_address":x,"Username":"vedant","Password":"fb64f3e085ca4027c7a95d2e2590e619-us20"}; var mailchimpRequest = new XMLHttpRequest('https://us20.api.mailchimp.com/3.0/lists/922ba0bf83/members', { method: 'POST', mode: 'no-cors', json: { "email_address": x, "status": "subscribed", }, redirect: 'follow', headers: new Headers({ 'Content-Type': 'application/json', 'Authorization': 'Basic apikey' }), auth: { 'user': 'vedant', 'pass': 'fb64f3e085ca4027c7a95d2e2590e619-us20' } }); //var anHttpRequest = new XMLHttpRequest(); //anHttpRequest.open("POST", 'https://us20.api.mailchimp.com/3.0/lists/922ba0bf83/members/', true); //var xx = xhttp.open("POST", 'https://usX.api.mailchimp.com/3.0/lists/922ba0bf83/members', true,); /* anHttpRequest.onreadystatechange = function() { if (this.readyState == 4 && this.status == 200) { alert(this.responseText); } };*/ //anHttpRequest.send(message); mailchimpRequest.open("POST", 'https://us20.api.mailchimp.com/3.0/lists/922ba0bf83/members', true); mailchimpRequest.send(); }