Thread:Project:Support desk/Slash in page's title/reply

The question is, can the server error be avoided when using "%"?

- No.

But really, what's the problem here about having "/" as part of the page title? If a page "OS/2" exists but "OS" doesn't, there won't be any link pointing to "OS". Otherwise, it will be a link at the top but only if the main namespace supports subpages, which is controlled by $wgNamespacesWithSubpages.