node.js - Javascript xmlhttp get request to nodejs server returns nothing -


before begin i'd tell of made lot of searching solution of problem on own.

here nodejs server:

var http = require('http'); http.createserver(function (req, res) {     console.log("recived request url " + req.url);     var sname = req.url.search("name");     if(sname != -1){         sname = sname + "name".length + 1;         var = sname;         while(req.url[sname] != '?' && sname<req.url.length){             sname++;         }         var name = req.url.substring(from,sname);         console.log("returning parameter of name - " + name);         res.writehead(200, {'content-type': 'text/plain'});         res.end(name+'\n');     }     else{         res.writehead(200, {'content-type': 'text/plain'});         res.end('error - ask name\n');     }  }).listen(1337, '127.0.0.1'); console.log('server running @ http://127.0.0.1:1337/');

it listens on port 1337 , if request url correct returns string.

here javascript code asking nodejs answer.

function httpget(theurl){     var xmlhttp = null;     xmlhttp = new xmlhttprequest();     xmlhttp.open( "get", theurl, true );     xmlhttp.send( null );     return xmlhttp.responsetext; }  var url = httpget("http://127.0.0.1:1337/?name=mateusz");  settimeout(function(){     document.getelementbyid("actualnewsspace").innerhtml=url;     var xurl = httpget("http://127.0.0.1:1337/?"+url); },5000)

returned xmlhttp.responsetext blank. why? that's question.

that's nodejs server has in matter

recived request url /?name=mateusz returning parameter of name - mateusz recived request url /?

if curl server returns mi proper value.

xmlhttp.responsetext hasn't been populated when return it. ajax asynchronous.

see using xmlhttprequest , bind event handler listen when http response has arrived , process data in that.


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