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Added some more details what people /can/ expect from psgix.session.

Thanks to rafl++ and counfound++ for the discussion.
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1 parent 1dc8a40 commit 31f09cd3a5f28cf9cc2d36a9048608f74640953a @miyagawa miyagawa committed Jan 18, 2010
Showing with 6 additions and 3 deletions.
  1. +6 −3 PSGI.pod
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@@ -253,11 +253,14 @@ B<SHOULD> be a plain string or a scalar variable that stringifies.
=item *
C<psgix.session>: A hash reference for storing and retrieving session
-data.
+data. Updates made on this hash reference B<SHOULD> be persisted by
+middleware components and B<SHOULD> be restored in the succeeding
+requests. How to persist and restore session data, as well as how to
+identify the requesting clients are implementation specific.
C<psgix.session.options>: A hash reference to tell Middleware
-components how to manipulate session data after the
-request. Acceptable keys and values are implementation specific.
+components how to manipulate session data after the request.
+Acceptable keys and values are implementation specific.
=back

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