Error messages for $.ajaxsetup

ajaxsetup.js

$.ajaxSetup({
  error: function(jqXHR, exception) {
    var msg='';
    if (jqXHR.status === 0) {
      msg='Not connected.\n Verify Network Connectivity.';
    } else if (jqXHR.status == 404) {
      msg='Requested page not found. [404]';
    }  else if (jqXHR.status == 500) {
      msg='Internal Server Error [500]';
    } else if (exception === 'parsererror') {
      msg='Requested JSON parse failed.';
    } else if (exception === 'timeout') {
      msg='Time out error.';
    } else if (exception === 'abort') {
      msg='Ajax request aborted.';
    } else {
      msg='Uncaught Error.\n' + jqXHR.responseText;
    }
    if (msg) {
      console.log(msg);
    }
  }
});