http://tools.wmflabs.org/icalendar/: http://getbootstrap.com/assets/css/docs.min.css
http://tools.wmflabs.org/icalendar/: http://getbootstrap.com/assets/js/docs.min.js

Loading from external providers are discouraged. Please see parent tasks and J65.

In your case these are several assets packaged together into a single js/css. You may want to separate them and load each individually from https://tools.wmflabs.org/cdnjs/, or host a local copy yourself.