Jquery Ajax With Authorization

Ajax-With-Authorization

var postvalues = {
  "key": 'test',
  "id": 1
};
$.ajax({
  url: 'http://www.example.com/check/', 
  type: 'POST',
  dataType: "json",
  data: postvalues,
  crossDomain:true, 

  beforeSend: function(xhr, settings){
    xhr.setRequestHeader ("Authorization", "Basic " + btoa(username + ":" + password));
  },
  success: function(json) {
  console.log(json)
  },
  error: function(XMLHttpRequest, textStatus, errorThrown) {
    alert(textStatus, errorThrown);
  },

});