I am linking to the cdnjs repository of bootstrap.js as recommended.
I have this working perfectly on a standalone html file with all the same includes.
Either I am doing something stupid or Codepen doesn’t like bootstrap.js
Works in the full preview, but not in the pen. Weird.
Looking further into it, <script src='http://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/2.2.1/bootstrap.min.js'></script> isn’t being loaded in the pen view; only in the full view. Maybe a bug? @chriscoyier might know?