+What am I doing wrong? The wiki is at
+<http://atrey.karlin.mff.cuni.cz/~onderka/wiki/>, the setupfile I used at
+<http://atrey.karlin.mff.cuni.cz/~onderka/wiki/ikiwiki.setup>.
+
+> This means that one of the checks that ikiwiki uses to prevent
+> editing files with strange or insecure names has fired incorrectly.
+> Your setup file seems fine.
+> We can figure out what is going wrong through a series of tests:
+>
+> * Test if your perl has a problem with matching alphanumerics:
+> `perl -le 'print int "index"=~/^([-[:alnum:]+\/.:_]+)$/'`
+> * Check if something is breaking pruning of disallowed files:
+> `perl -le 'use IkiWiki; %config=IkiWiki::defaultconfig(); print ! IkiWiki::file_pruned("index")'`
+> --[[Joey]]