yepnope.js : A Conditional Loader For Your Polyfills!
emotion : emotion is a high performance, lightweight css-in-js library that supports both string and object based styles.
Logerr : Experimenting with window.onerror, trying to make JavaScript debugging easy.
What does it do?
Provides JavaScript error details in a readable format. ...
script.aculo.us : script.aculo.us provides you with
easy-to-use, cross-browser user
interface JavaScript libraries to make
your web sites and web applications fly.
Peer-to-peer data in the web browser.
PeerJS completes WebRTC as an API abstraction, connection broker, and binary serialization format