title: ajax post, firefox and IE wont work
body: <p>I'm making an jquery ajax post to a php script.  this works in Chrome 19 and Safari 5.</p>
  
  <pre><code>$.ajax({
      type:'POST',
      async:true,
      url: '/site/phpscript.php',
      data: {
              xyArray: xyArray,
              xmlDataString:xmlDataString,
              id:id
          },
      success: function(results){ alert('success'); },
      error: function()
      {
                  alert('error');
      }
  });
  </code></pre>
  
  <p>When I test this, this will work in chrome and safari.  but not in IE and firefox.
  but.. if the size of the xmlDataString is small, it will work.  </p>
  
  <p>is there a size limitation for firefox when posting using jQuery ajax?</p>