Why the Error in jquery: Response for preflight is invalid (redirect)? I am getting 302 code status?

[GUMMADI VIJAYA Kumar]

Here is the code and i am getting the error in chrome console as follows: Failed to load URL:Response for preflight is invalid (redirect)

$(document).ready(function(){
   var username = "username";

    var password = "password";    
   $.ajax({   
    type:'GET',    
    url:'URL',    
    dataType:'json',           
    beforeSend: function (xhr) {
xhr.setRequestHeader("Authorization", "Basic " + btoa(username + ":" + password));
           },
    success: function(data)
      {
         console.log(data);
         $('#keepithere').append('<p>'+data+'</p>');
      }

    });
});

[jacob delddd]

have you found a solution?