Why doesn't this jquery code work?

Question

 $('#iframe').ready(function() {
   $('#iframe a').attr('target', '_parent');
 });

simple as that.

EDIT:

my html:

 <div id='outerdiv'>
   <iframe src="http://localhost:8888/harvest/blog" id='iframe' scrolling=no></iframe>
 </div>

Answer 1

Have you tried using a .load() event instead? See the below question.

Javascript callback when IFRAME is finished loading?

Answer 2

To access iframes you need to use 'contents':

  $('#iframe').ready(function() {
       $('#iframe').contents().find('a').attr('target', '_parent');
  });

Answer 3

可能是因为您无法在JavaScript中修改跨域iframe文档。