PATH_INFO-SCRIPT_NAME.txt

== Ideally ==

This is how PSGI spec wants web servers to define SCRIPT_NAME and PATH_INFO vars, at least I can tell from Rack and WSGI docs.

If the app is hosted on /:

  URL          SCRIPT_NAME      PATH_INFO
  ----------------------------------------
  /            (empty)          /
  /foo         (empty)          /foo
  /foo/bar     (empty)          /foo/bar

If the app is hosted on /foo:

  URL          SCRIPT_NAME      PATH_INFO
  ----------------------------------------
  /foo         /foo             (empty)
  /foo/        /foo             /
  /foo/bar     /foo             /bar

== Apache (mod_cgi) ==

If the app is hosted on /foo: (foo is a .cgi file)

  URL          SCRIPT_NAME      PATH_INFO
  ----------------------------------------
  /foo         /foo             (empty)
  /foo/        /foo             /
  /foo/bar     /foo             /bar

== Apache (mod_perl) ==

If the app is hosted on / with

  <Location />
  SetHandler perl-script
  PerlHandler Foo
  </Location>

  URL          SCRIPT_NAME      PATH_INFO
  ----------------------------------------
  /            /                (empty)
  /foo         /foo             (empty)
  /foo/bar     /foo             /bar


If the app is hosted on /foo with

  <Location /foo>
  SetHandler perl-script
  PerlHandler Foo
  </Location>

  URL          SCRIPT_NAME      PATH_INFO
  ----------------------------------------
  /foo         /foo             (empty)
  /foo/        /foo             /
  /foo/bar     /foo             /bar

== Lighttpd (mod_fastcgi) ==

If the app is hosted on / with

  (
   "" =>
   ((
     "socket" => "/tmp/fcgi.sock",
     "check-local" => "disable"
   ))
  )

  URL          SCRIPT_NAME      PATH_INFO
  ----------------------------------------
  /            /                (empty)
  /foo         /foo             (empty)
  /foo/bar     /foo/bar         (empty)

If the app is hosted on /foo with

  (
   "/foo" =>
   ((
     "socket" => "/tmp/fcgi.sock",
     "check-local" => "disable"
   ))
  )

  URL          SCRIPT_NAME      PATH_INFO
  ----------------------------------------
  /foo         /foo             (empty)
  /foo/        /foo             /
  /foo/bar     /foo             /bar