URL with multiple forward slashes, does it break anything?

http://example.com/something/somewhere//somehow/script.js

Does the double slash break anything on the server side? I have a script that parses URLs and I was wondering if it would break anything (or change the path) if I replaced multiple slashes with a single slash. Especially on the server side, some frameworks like CodeIgniter and Joomla use segmented URL schemes and routing. I would just want to know if it breaks anything.