Strange problem resolving paths (affecting mod rewrite)

[richcon]

If the following file exists:

   /app/foo/bar.jpg

and the user goes to the URL:

   /app/foo/bar/

The 404 Not Found page that results shows:

   Not Found 
   The requested URL /app/foo/bar.jpg/ was not found on this server.

This is effecting my app, because I have an mod_rewrite rule in my .htaccess file that launches a web app if the given filename doesn't exist. But in the above case the rule breaks down and the app never launches, as if mod_rewrite thinks the path exists when it doesn't. Instead I get the above 404 Not Found page. (Following is the mod_rewrite code:)

   RewriteCond %{REQUEST_FILENAME} !-f 
   RewriteRule .* (Launch my web app)

This problem only happens if the existing file's extension is of a filetype Apache knows. It doesn't happen if the file is renamed from bar.jpg to bar.#*$!.

Any ideas what's going on here?

[jdMorgan]

Disable content-negotiation if you don't use it, by using

Options -MultiViews

Jim

[richcon]

That did it, thanks!