server and client are hosted on same url, and yet I get CROS error

Question

I have this code:

client (angular2) hosted on this url:

http://localhost:8080/Me/html/pages/gasolina/country/USA

code:

  return this.http
          .post(this.supporToolSaveUrl, gasConfigModel, {headers: headers})
          .map(res => res.json())
          .subscribe(
            data => {
              console.info("next: ");
              console.info(data)
            },
            err => console.error(err)
          );

server (java jersey)

hosted on this url:

http://localhost:8080/Me/services/SaveConfig

code:

 @Path("/SaveConfig")
    @POST
    @Consumes(MediaType.APPLICATION_JSON + ";charset=utf-8")
    @Produces(MediaType.APPLICATION_JSON + ";charset=utf-8")
    public void saveConfig(CountryGasStationConfig countryGasStationConfig) throws Exception {

should i add these in jersy annotation?

When i run locally i get this error:

MLHttpRequest cannot load http://locahost:8080/.... Response for preflight is invalid (redirect)

I saw this post and this post

How can i make this solution in angular2?

app.

config(['$httpProvider', function ($httpProvider) {
  //Reset headers to avoid OPTIONS request (aka preflight)
  $httpProvider.defaults.headers.common = {};
  $httpProvider.defaults.headers.post = {};
  $httpProvider.defaults.headers.put = {};
  $httpProvider.defaults.headers.patch = {};
}]);