发布到iframe，但是iframe会将顶部窗口重定向到操作网址而不是自我？

Question

I am loading an iframe with some post data, by using a form post as mentioned here too :

How do you post to an iframe?

Everything works fine. However,if my iframe url has a redirect in it ( through header or javascript snippet), it does not redirect to the next url within the iframe, but instead redirects the parent window.

eg: To post into iframe :

<form action="do_stuff.aspx" method="post" target="my_iframe">
  <input type="submit" value="Do Stuff!" />
</form>

<!-- when the form is submitted, the server response will appear in this iframe -->
<iframe name="my_iframe" src="not_submitted_yet.php"></iframe>

not_submitted_yet.php:

<?php

// DO some stuff with post data 
// redirect to a success url
header("Location: THE_URL");

?>

The problem is THE_URL does not open in the iframe itself, instead it opens in full browser window, which is an undesired behaviour. How can I fix this ? The behaviour is same in firefox and chrome.

Answer 1

I think that what can happend here is that THE_URL is some protected page that break frames. Perhaps wikipedia or other. With a code like this one:

if (top.location != location) {
    top.location.href = document.location.href ;
  }