yields/indexof — pull request #2 by olivoil (2014-06-01 17:46:02+00:00)
Title: document.children is undefined in internet explorer

weird ie quirk, even if you access `document` through `el.parentNode`, `document.children` is undefined :(

![screenshot](https://i.cloudup.com/2bY-RubKLc-3000x3000.png)