json - Nodejs page freezes after multple requests to Custom API -

the problem have application works when submit 1 one when press submit button multiple times freezes , after time (about 1000.000 ms) returns last request in console , jade page. submit button returns post form , sends same page . button refreshing page. important page returns (json) post page , there other json request sends api(and returns same page )

app.js

var options_search = {     hostname: 'host',     path: 'path',     method: 'post',     headers: {         'content-type': 'application/json',         'content-length': json request .length,     } };  app.post('/result',function(req,response){      var keyword=req.body.user;       global.objtojson ={ keyword };     response.write(json.stringify(global.objtojson));      console.log("test " +json.stringify(global.objtojson) );  });    app.get('/search', function(req, res) {      var req = http.request(options_search,  (resb) => {          var buffer_search = "";         resb.setencoding('utf8');          resb.on('data', (chunks) => {             buffer_search += chunks;         });         resb.on('end', () => {              res.render('search',{                 title: 'search',                 value_search: buffer_search,                 search_test: [json.stringify(global.objtojson) ]             });         });        });      //res.redirect("/search");     req.write(search);  }); 

search.jade

doctype html html     head     script(src='//ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js')     script.         $(document).ready(function(){             var user,pass;             $("#submit").click(function(){                 user=$("#user").val();                 pass=$("#password").val();                 $.post("http://localhost:3000/result",{user: user}, function(data){                     if(data==='done')                     {                         alert("login success");                     }                  });               });         });           input#user(type='text', size='40')         br         input#submit(type='button', value='submit',onclick="location.href='search'") 

in result route using underlying http .write() method respond client. not end connection, stay open expecting more things written client.

if sending string should use .send() write string http stream , end response.

you may want consider not stringifying object json string , using .json() instead. line of code

response.write(json.stringify(global.objtojson)); 

becomes

response.json(global.objtojson);