EncyclopediaOfLife/eol — comment on commit ef7b6563f13254bf99b4ecb17943ef29ce61e2a1
File: app/controllers/search_controller.rb line 111
By JRice:

FWIW, another case where I'm not sure why %r{} was used over //. ...Again, though: NBD.

I also have to add that the .* still makes me nervous. ...But as I consider it, I think I'm over-thinking it just because the word "whitelist" is being used. :D