Under the new 2.x Oreilly example, the app.js includes a dataURL atop the file pointing at the JSON feed at oreilly.com, but it launches (at the bottom) with a Proxy call that references data/feed.js. What's the relationship between these two feeds?
Changing dataURL to a file on the local server and modifying it does not cause any change in the data displayed by the example, however changing data/feed.js does. Any insights appreciated.
Also, how can the icons that appear at the bottom be modified?