When I try to edit a page that has a forward slash in the URL, I get "Error: bad page name". I think the problem is because the forward slash is escaped as %252F instead of %2F.

For example, if I go to http://ciffer.net/~svend/tech/hosts/ and click Edit, I am sent to a page with the URL http://ciffer.net/~svend/ikiwiki.cgi?page=tech%252Fhosts&do=edit.

I am running ikiwiki 3.20100504~bpo50+1 on Debian Lenny.

But on your page, the Edit link is escaped normally and correctly (using %2F). Look at the page source!

The problem is that your web server is forcing a hard (302) redirect to the doubly-escaped url. In wireshark I see your web server send back:

HTTP/1.1 302 Found\r\n
Apache/2.2.9 (Debian) PHP/5.2.6-1+lenny9 with Suhosin-Patch
Location: http://ciffer.net/~svend/ikiwiki.cgi?page=tech%252Fhosts&do=edit

You'll need to investigate why your web server is doing that... --Joey

Thanks for pointing me in the right direction. I have the following redirect in my Apache config.

RewriteEngine on
RewriteCond %{HTTP_HOST} ^www\.ciffer\.net$
RewriteRule /(.*) http://ciffer.net/$1 [L,R]

and my ikiwiki url setting contained www.ciffer.net, which was causing the redirect. Correcting the url fixed the problem. I'm still not sure why Apache was mangling the URL. --Svend