Uncaught TypeError: Cannot read property 'span' of undefined

[lilyannh]

First off, this is a really cool effect! I'm new to react so I'm not really sure what the issue is; using React 16.2.

index.js:21 Uncaught TypeError: Cannot read property 'span' of undefined

[NoMemoryError]

@Snazzypants I have submitted #16 for this. If you need this urgently you can access it on my forked version. @Lapple would be nice if you can have a look at it and merge it.

[NeXTs]

Hey @Lapple, please accept any of PR's
We need this plugin to work on react 16