Text output to a stream pane results in scrolling only if the pane is the direct child of the scroll pane. If there are any intervening layout panes, scrolling does not happen. In the example below, we have a bordered application pane which should scroll when text reaches the end of the page.

(define-application-frame scrolling-frame () ()
  (:menu-bar scrolling-frame-command-table)
  (:pa