Hello,
If I edit or create a project, and use the 'New window' navigator, but do not specify the image preview option, then all that is seen (when played) is a blank page. The Apache logs show that a 404 is being returned because Xerte is trying to GET '/xerte/Select%20a%20preview%20image'. This is the default text displayed when creating/editing the new window. If I edit the page and change the preview image to nothing (i.e. remove the 'Select a preview image' text), then the new window works as expected (no 404, a web page is displayed).
Not sure if this is a bug as such or an issue. I was using new window to try and sort out another user problem, so I may simply be doing something that users would not normally do! :-)
Sorry, haven't had time yet to look at the code for a patch.
John.