Forum OpenACS Q&A: Response to How do I constrain an OpenACS web-site
"One thing I don't remember is if Aolserver will process the rest of the page if you put an ns_return or ns_returnredirect at the top. Does anyone else know the answer to this?"An ns_return does not terminate processing. A return [ns_return ...] will do the trick. Otherwise AOLserver starts feeding up a page to the user & continues processing.