Ligue para o serviço Wcf com Javascript na página Html

Eu tenho um projeto WCF no VSStudio2012 e quero chamar um método da função JavaScript.

Arquivo JavaScript:

var url = 'http://localhost:52768/Service1.svc/'

function test() {

var response;

$.ajax({
    type: 'Post',
    url: url + 'GetTEST',
    contentType: 'application/json; charset=utf-8',
    dataType: 'json',
    success: function (msg) {
        alert(msg);
    },

    error: function (e) {
        alert("Error  : " + e.statusText);
    }
});

}

Arquivo HTML:

<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<script Language="JavaScript" src="Scripts/JavaScript1.js"></script>
<script Language="JavaScript" src="Scripts/jquery-1.10.2.min.js"></script>
<script Language="JavaScript" src="Scripts/jquery-1.9.1.intellisense.js"></script>
<script Language="JavaScript" src="Scripts/jquery-1.9.1.js"></script>
<script Language="JavaScript" src="Scripts/jquery-1.9.1.min.js"></script>
<script Language="JavaScript" src="Scripts/jquery.unobtrusive-ajax.js"></script>
<script Language="JavaScript" src="Scripts/jquery.unobtrusive-ajax.min.js"></script>
<script Language="JavaScript" src="Scripts/jquery.validate.js"></script>
<script Language="JavaScript" src="Scripts/jquery.validate.min.js"></script>
<title>TESTE</title>
</head>
<body>
<input id="Button1" type="button" value="button" onclick="test()"/>
</body>

</html>

No meu IService1.cs

    [OperationContract]
    [WebInvoke(Method = "GET",ResponseFormat = WebMessageFormat.Json)]
    string GetTEST();

Aqui está aquela exibição de alerta

E o erro:

localhost: exibição 52768 / Service1.svc

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