WikiMedia doesn't work with trailing slash. If user opens URL with trailing slash, the page will not be found. WikiMedia should make 301 redirection from URL with trailing slash to URL without trailing slash.

Steps to Reproduce:

1. Open https://en.wikipedia.org/wiki/Wonder_Stories (without trailing slash). The page will be found.
2. Open https://en.wikipedia.org/wiki/Wonder_Stories/ (with trailing slash). The page will not be found. Instead, user should be redirected to https://en.wikipedia.org/wiki/Wonder_Stories (without trailing slash).