facebook/react — pull request #2525 by davidxi (2014-11-14 16:25:00+00:00)
Title: "data.length is null" error when set innerHTML (which has comment nodes) in IE-8, (only happens in compressed version)

I have encountered a JS error when trying to set innerHTML of a node in IE-8 browser.

content to copy

However, if loading with the development version, that JS error would not happen. In this case, the `textNode.data` is an `empty string` instead of `undefined` as in compressed version.