consumption webservice rest returns: No 'Access-Control-Allow-Origin'

Deadlines,

I have a problem to consume a third-party Webservice, when trying to consume it by java script the return I get is:

  

XMLHttpRequest can not load    link .   Response to preflight request does not pass access control check: No   'Access-Control-Allow-Origin' header is present on the requested   resource. Origin ' link ' is therefore not allowed   access.

However when trying to consume the same by postman I can get the desired response, that a Json, to consume the same is necessary to pass in the header a login and password, as follows:

  

Authorization: xxxx

To consume webservise I created the following script:

function getListaWebService(url){
                $.ajax({
                    'url': url,
                    Type: "GET",
                    dataType: "json",
                    headers: {
                        "Authorization": "xxxx " + geraBase64("xxxx", "yyyy")
                    }
                }).done(function (objJson){
                    console.log("objJson", objJson);
                }).error(function (err) {
                    console.log("err", err);
                }); }

What did I do wrong, if it is cross domain problem, how can I solve it by JS or java?