Us eiframe with form variable IE9

I have the following question,
Maybe someone knows the answer.

I have a form on the index page:

<form action="webtracker.php" method="post" name="QuickViewNumber" id="QuickViewNumber">
<table width="200" border="0">
<tbody>
<tr>
<td><p>Track shipment:
<br>
<label for="textfield"></label>
<input type="text" name="QuickViewNumber" id="QuickViewNumber" placeholder="Enter BL or Shipment"></p></td>
</tr>
</tbody>
</table>

And i have a page called webtracker.php with the following code:

<iframe src="http://somesource/index.php?QuickViewNumber=<?php echo $_POST['QuickViewNumber']; ?>" id="QuickViewNumber" width="1500" height="1500" frameborder="0" scrolling="no"></iframe>

This works with Google Chrome and Firefox but not with Internet Explorer.

I can't find why it not working.

Can someone help?

Thanks.

Kind Regards

[size=xsmall]Toevoeging op 20/09/2014 23:53:47:[/size]

I mean use iframe with IE9