OmniFace's FullAjaxExceptionHandler in the case of an exception during ajax request does two things: logs the exception and renders error page configured in web.xml <error-page><location>.
This was working OK with deltaspike 0.6. As of deltaspike 0.7 FullAjaxExceptionHandler stopped working. It gets called but getUnhandledExceptionQueuedEvents() does not return any exception. It seems that in the case of ajax request the exception handling mechanism of deltaspike removes the exception and does not give a chance for other exception handlers (registered by means of <exception-handler-factory> in faces-config.xml). Note: I do not use deltaspike exception handling mechanism, that is, not annotations @ExceptionHandler or @Handles.
