Is it possible to handle an exception through the pages.xml file and not end the current conversation? 

I'm using Seam 2.2.2.Final /w RichFaces 3.3.3.Final attempting to handle the FileUploadException when a file upload is above a limit.  I'm using <s:uploadFile>

From pages.xml ...

    <exception class="org.jboss.seam.web.FileUploadException">
        <redirect view-id="/attach/attachmentList.xhtml">
            <message severity="error">#{messages['attachment.error.upload.maximum.exceeded']}</message>
        </redirect>
    </exception>

The additional detail is that I'm uploading from a modal and would like the error message to appear on the modal.  Any suggestions on how to solve this would be appreciated.