You have to put in your PlaceHistoryMapper only the places that want to handle with the history handler.
"PlaceHistoryMapper is the link between your PlaceTokenizers and GWT's PlaceHistoryHandler that synchronizes the browser URL with each Place." http://code.google.com/webtoolkit/doc/latest/DevGuideMvpActivitiesAndPlaces.html#PlaceHistoryMapper -- You received this message because you are subscribed to the Google Groups "Google Web Toolkit" group. To post to this group, send email to google-web-toolkit@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.