Clarify behaviour of 404 handler and link an example

diff --git a/doc/todo/apache_404_ErrorDocument_handler.mdwn b/doc/todo/apache_404_ErrorDocument_handler.mdwn
index e3dd7c3455a05164f827fd5c691bba04e7c7c8e1..b580294ca6189e3973a670afa42e7c5e9ac1b043 100644 (file)
--- a/doc/todo/apache_404_ErrorDocument_handler.mdwn
+++ b/doc/todo/apache_404_ErrorDocument_handler.mdwn
@@ -8,6 +8,9 @@ I think it'd probably have to be a separate CGI script because the environment w
 (having said that, it might make sense for `recentchanges_link` to return 404 rather than
 200 anyway if the page doesn't exist).
 
 (having said that, it might make sense for `recentchanges_link` to return 404 rather than
 200 anyway if the page doesn't exist).
 

+> This turns out to be untrue, as long as the wrapper lets a couple of extra
+> environment variables through. --[[smcv]]
+

 This would give IkiWiki the behaviour of many other wikis, where visiting a page that
 does not yet exist prompts you to create it, without having to invoke the CGI for
 successful requests.
 This would give IkiWiki the behaviour of many other wikis, where visiting a page that
 does not yet exist prompts you to create it, without having to invoke the CGI for
 successful requests.


@@ -15,4 +18,6 @@ successful requests.
 Due to [a well-known MSIE misfeature](http://support.microsoft.com/default.aspx?scid=kb;en-us;Q294807),
 error output needs to be at least 512 bytes long, so some padding might also be required.
 
 Due to [a well-known MSIE misfeature](http://support.microsoft.com/default.aspx?scid=kb;en-us;Q294807),
 error output needs to be at least 512 bytes long, so some padding might also be required.
 

-Implemented in the 'goto' branch in my git repository. --[[smcv]]
+Implemented in the 'goto' branch in my git repository. You can see this
+feature in action [on my blog](http://smcv.pseudorandom.co.uk/no/such/page/).
+--[[smcv]]