javascript worker loop ajax -

i having worker has array of urls. loop through these urls , throw ajax call, inside success method of ajax when send message website, sends last request.

app.js

var worker = new worker('worker.js'); var urls = ['url1','url2','url3']; worker.addeventlistener('message', function(e) {   console.log('worker: ', e.data.url); }, false);  worker.postmessage({"args":[urls]}); 

worker.js

self.addeventlistener('message', function(e) {     function load(url){         var xmlhttp=new xmlhttprequest();         xmlhttp.onreadystatechange=function()         {             if (xmlhttp.readystate==4 && xmlhttp.status==200)             {                 console.log(xmlhttp);                 self.postmessage({'url':url});             }         }         xmlhttp.open("get",url,true);         xmlhttp.send();     }      var urls = e.data.args[0];     for(var = 0; i<urls.length; i++){         load(urls[i]);     } }, false); 

now inside console.log(); of app.js, output of last url.

i don't all urls response.

can ?

the answer real easy. make line 3

var xmlhttp=new xmlhttprequest(); 

what you're doing now, setting xmlhttp global variable. means overriding variable every time line 3 executed.