title: Jquery filter not working with jquery object
body: <p>I using ajax to retrieve a web page like that:</p>
  
  <pre><code>   $.ajax({
              url: "/Cadastros/pagina_busca_correios?cep=" + cep,
              type: "Get",
              DataType: 'Html',
              success: function (data) {                       
                   var webdata = data;
                   var tables = $(webdata).filter('table');
                   alert(tables);                                                
              }
     });
  </code></pre>
  
  <p>I am able to print the html in data return but after creating the jquery object and apply filter I get noting. It is like a have an error with my javascript.</p>
  
  <p>PS. I know I have 4 tables inside this html string, so I would like to filter the tables and iterate through them to perform actions. Those elements inside the DOM has no id´s or names that I could use to select straight forward.</p>
  
  <p>What I am doing wrong?</p>