Our goal is to make it easier to see what's happening in programs, and in doing so make coding faster. Eventually we want to build in the ability to deploy both frontend and backend (Node), all from the same editor page.
Haha, both of those cases are killing both the iframe and the UI. I have to get around to using totally different domain on the iframe to really take advantage of the Chrome process isolation. Previously I was using a really nice JS interpreter written in JS[0] before to solve that problem, but it ran 200 times slower than the browser interpreter(!)
For example: