More than a year ago, Ryan Kirkman and Thomas Davis approached us about a project they were working on. Dubbed CDNJS, the project had a noble goal: make the world's Javascript resources load as fast as possible.
App a Day #13 - CDNJS Selections for Legacy Browser Support
To demonstrate the utility of this open-source repository, today's CloudFlare App is CDNJS Selections, where a click installs the selected JavaScript libraries on your site.
CDNJS: Community Moderated Javascript Libraries + CloudFlare
If you're using a Javascript library, the ideal case is that your visitors arrive on your site with it already stored in their browser's cache. The more sites that use the same URL to reference the library, the more likely it is that it will be cached even for first-time visitors.