Cross-domain Ajax Request Basic Authentication

I'm making cross-domain ajax request to get some data. The REST service have Basic authentication (set through IIS). $.ajax({ type: 'GET', xhrFields: {

Solution 1:

Pass username and password like following code,

$.ajax({
    type: "GET",
    xhrFields: {
        withCredentials: true
    },
    dataType: "jsonp",
    contentType: "application/javascript",
    data: myData,
    async: false,
    crossDomain: true,
    url: "http://xx.xx.xx.xx/MyService/MyService.svc/GetData",
    success: function (jsonData) {
        console.log(jsonData);
    },
    error: function (request, textStatus, errorThrown) {
        console.log(request.responseText);
        console.log(textStatus);
        console.log(errorThrown);
    }
    username: username,
    password: password,
});

Solution 2:

$.ajax({  
    url: 'yoururl',
    username : username,
    password :password,
    type: 'POST',
    contentType: 'application/x-www-form-urlencoded',
    dataType: "text",
    xhrFields: 
    {
        withCredentials: true
    },
    beforeSend: function (xhr) { 
        xhr.setRequestHeader('Authorization', 'Basic ' + btoa(username + ":" + password));             
    }
});

Solution 3:

$.ajax({//No need to pass credentials 
            type: "get",
            async: false,
            url: "https://someurl/",
            xhrFields: {
                withCredentials: true
            },            
            success: function (data) {
                //do something
            }
        })