Most errors are printed in the server log or returned to the browser as an error page.
If you specify a resource in a POP that is not defined in the WebSEAL configuration file, a warning message will be printed in the server log.
If an error occurs during HTTP transformation processing, a 501 Internal Server Error is returned to the browser.
WebSEAL error responses (not related to HTTP transformation processing) will be transformed if there is an appropriate POP attached to the junction or object that caused the error.