From: Mischa POSLAWSKY <perl@shiar.org>
Date: Mon, 12 Apr 2010 17:45:00 +0000 (+0000)
Subject: export and check last-modified header
X-Git-Tag: v1.3~17
X-Git-Url: http://git.shiar.nl/sheet.git/commitdiff_plain/4b28462f6dccd2437a3313b02a2ec678a4bf674b?hp=4b28462f6dccd2437a3313b02a2ec678a4bf674b

export and check last-modified header

Avoid resending unaltered pages.
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