WebFilings/wf-common — pull request #22 by clairesarsam-wf (2014-09-15 19:17:59+00:00)
Title: Add Polyfills For Window.atob and Window.btoa

**Ultimate Problem**
Consumers of `wf-common` need to encode and decode to/from base64. The `atob` and `btoa` functions are not available in IE9, so a polyfill needs to be added.

**Solution**
A polyfill was added in Compatability.js. The encoding/decoding logic was taken from https://github.com/davidchambers/Base64.js.

---

Please review: @brianreed-wf @joshschlick-wf @timmccall-wf