为什么我没有收到跨域错误？

Question

I have a html page which has an Iframe. ( here it is )

They are both at different domains.

Page A: domain = http://jsbin.com/

It hosts an Iframe with domain : Example.com

<iframe src='http://example.com' id='a'> </iframe>

However - when I try to access the iframe content via :

$(document).ready(function ()
 {
  console.log($("#a").contents().find("*").length)
});

I do see response :

Question :

why am I not getting an Error about access different origin ?

Comment : It seems that I can't access the content of elements , but i'm positive that I should have got a cross domain error.

relative info : chrome Version 30.0.1599.66

Answer 1

You don't get an error because the frame hasn't yet loaded so there isn't really anything to block. Try to access it after it loads and you'll see the expected error.

$(document).ready(function (){
  $("#a").load(function(){
   console.log($("#a").contents().find("*").length)
  });
});

http://jsbin.com/uQARiWu/1/edit