override jQuery.ajax to auto-trim responseText

jquery.ajax.trimreponses.js

(function () {
  'use strict';
  var oldFn;
  oldFn = $.ajax;
  $.ajax = function () {
    var dfrd = new $.Deferred();
    oldFn.apply($, arguments).then(function (data, status, xhr) {
      if (!!xhr.responseText) {
        data = $.trim(xhr.responseText);
        xhr.responseText = data;
      }
      dfrd.resolve(data, status, xhr);
    }).fail(function (xhr, status, error) {
      if (!!xhr.responseText) {
        xhr.responseText = $.trim(xhr.responseText);
      }
      dfrd.reject(xhr, status, error);
    });
    return dfrd.promise();
  };
}());