javascript - Getting error message on while AJAX-get on localhost with node.js -

i'm trying use ajax piece of string local server made using node.js, connection being done, status 200, working still can't piece of string. may provide me explanation of why happening?

p.s.: i'm still newbie node.js

node.js server code:

// load http module create http server. var http = require('http');  // configure our http server respond hello world requests. var server = http.createserver(function (request, response) {   response.writehead(200, {"content-type": "text/javascript"});   response.end("var = 'hello world';"); });  // listen on port 8000, ip defaults 127.0.0.1 server.listen(8000);  // put friendly message on terminal console.log("server running @ http://127.0.0.1:8000/"); 

ajax call code:

<script type="text/javascript" src="http://code.jquery.com/jquery-latest.min.js"></script> <script>     $.ajax({             async: 'false',             type: 'get',             url: 'http://127.0.0.1:8000/',         success: function(data, textstatus){             console.log('done: request has been sent');         },         error: function(xhr, textstatus, errorthrown){             console.log('err: request failed \nstatus: '+textstatus+'\nerror: '+errorthrown);             console.log(xhr);         }     }); </script> 

console:

xmlhttprequest cannot load http://127.0.0.1:8000/. no 'access-control-allow-origin' header present on requested resource. origin 'null' therefore not allowed access.  xhr failed loading: "http://127.0.0.1:8000/".send @ jquery-latest.min.js:4m.extend.ajax @ jquery-latest.min.js:4(anonymous function) @   err: request failed  status: error error:   object {readystate: 0, responsetext: "", status: 0, statustext: "error"} 

cross domain fails ajax call because of violation of same origin policy. therefore, need modify code , remove crossdomain : true,. also, add timeout:5000, or write async: false, safe side.

it work then.