Used to aid debugging, for example, displaying the environ dictionary.
| ShowCallData | A div showing the call_data dictionary. This widget is only displayed if debug mode is ON. |
| ShowEnviron | A div showing the environ dictionary. This widget is only displayed if debug mode is ON. |
| ShowResponders | A div containing a table with columns showing the responders called to access this page. This widget is only displayed if debug mode is ON. |