In Vaadin PDF does not work in popup Window

I am trying to display a PDF in a popup window using Vaadin 6.6.2 and the code as shown in this blog:

http://jcraane.blogspot.com/2010/09/printing-in-vaadin.html

The problem I have is that whenever I close the Window containing the PDF it always hangs the current browser tab in IE 9.

I have tested this in Safari, Firefox, and IE 8 and its works fine. I also know that the problem is related to the embedded PDF as I have tried replacing the embedded PDF with a Vaadin Label and then the p开发者_开发百科opup window closes fine in IE9.

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I had a similar problem in Firefox 3.x, I solved it by upgrading to Firefox 4, and upgrading the Adobe plugin.

It seems to me the problem is on the browser/plug-in side.

If you are stuck with that browser/version, try just upgrading the plugin if that's not already on the latest version.