Following the approach described here https://cwiki.apache.org/WICKET/ajax-update-and-file-download-in-one-blow.html I implemented downloading a PDF from a ModalWindow. The page from where the ModalWindow is opened, also contains other Ajax functionality (like the AjaxLinks, etc.)
After the file is downloaded and the ModalWindow is closed all my Ajax stuff on the base page, from which the ModalWindow was opened, are not working anymore. Only when I reload the page, the Ajax stuff is working again.
This happens in Google Chrome but not in Safari and Firefox. Not sure if it's a Wicket or a Chrome specific problem.
A quickstart example showing the problem is attached.