Let us start with an XSSI riddle:
Q: What's the difference between XSSI and ex-president Ronald
A: Reagan was unlimited evil that seemed simple, while XSSI is unlimited
good that appears complex.
HAHAHAHAHAHA ... heh. Um, actually that's not quite true: XSSI has fairly
significant limitations, and, more important, using it is as easy as falling asleep in
a cabinet meeting.
What XSSI is:
XSSI (for eXtended Server-Side Includes) is part of Apache, freely distributed Web-server software that's used by many Web sites, including HotWired, to give
browsers the pages they request. The XSSI module (mod_include) defines a set of commands that Apache will parse after a page is requested by a browser, but before the page is sent to the browser.