clone() on forms does not copy password input values in ie

[bryanhart]

In IE, after cloning a form, values for password inputs are not copied over. Works as expected in FF3 and Safari 3.

Example:

<form id='form'>
  <input name='password' type='password' value='xyz' />
</form>
<script>
  alert($('#form').clone().find('[name=password]').val());
</script>

[dmethvin]

This bug isn't specific to jQuery, it seems to be due to IE's DOM cloneNode operation:

<form id="xform">
<input type="password" name="secret" value="stuff">
</form>
<script>
 alert(document.getElementById("xform").cloneNode(true).innerHTML);
</script>

[brandon]

Cloning form element values along with a form is something we used to have in core but removed due to the immense overhead it had. The various browsers are not sure what to do with the cloned form element either. The implications are more than just skin deep.