[xwiki-users] xpage=plain encloses output in <p>

I would like to return pure JSON from a page with a macro, to be called externally as a web service. When I append xpage=plain to the URL of the page to omit the UI content, the output is still enclosed within <p> </p>. Is there any way to get the plain text content without an enclosing paragraph tag? Regards, Tim