dart - HttpRequest (web client) and HttpRequest (server): method and contentType doesn't exchange -

the method , contenttype parameters doesn't exchange in httprequest (web client) , httprequest (server) in dart.

i have following code:

(web client)

var url = "http://127.0.0.1:8087"; string jsonstring = json.encode(dadosregistro[id]); httprequest.request(url, method: "delete", senddata: jsonstring, mimetype:  "application/json")   .then((httprequest resp) {      window.console.log(resp.response);   }).catcherror(tratarerro); 

(server)

httpserver.bind('127.0.0.1', 8087).then((server) { server.listen((httprequest request) {   print(request.method);   print(request.headers.contenttype); }); 

when web client calls server, result following:

options null 

my expectative was:

delete application/json 

am doing wrong?

thanks!

this cors issue. request receiving pre-flight request, sent browser verify if server can receive actual request. can see more cors here: http://www.html5rocks.com/en/tutorials/cors/

to see expected result, can change server code handle pre-flight request:

 httpserver.bind('127.0.0.1', 8087).then((server) {  server.listen((httprequest request) {    request.response.headers.add("access-control-allow-origin", "*");    request.response.headers.add("access-control-allow-methods", "post,get,delete,put,options");    request.response.statuscode = httpstatus.ok;    if (request.method == "options") {      //pre-flight request      request.response.close();    } else {      print(request.method);      print(request.headers.contenttype);      request.response.close();    }  });