在iframe完全加载后填写邮政编码 - 工作但不在Chrome中

Question

On our website we send a postal code from a form to an iframe. The code works in all browsers except Google Chrome.

This is the code:

<code>
<?php if (isset($_POST['postcode']) && !empty($_POST['postcode'])) { ?>
<script>
$( document ).ready(function() {
  $('#sd-iframe').load(function() {
  $('#sd-root').trigger('setFieldValue', {
    name: 'postcode',
    value: '<?php echo htmlspecialchars($_POST['postcode']); ?>'
});
  });
  });
</script>
<?php
  }
?>
</code>   

Maybe i have to use a Settimeout? but i dont know how ;)

I was very happy that i was able to make this, just a beginner ;)

I hope someone is able to help me!

Ralf