publish-storybook script is failing

[LucianBuzzo]

Uglify JS is unable to parse an arrow function imported into the bundle from resin-semver

Failed to build the storybook
static/preview.8657f91df26baa59b122.bundle.js from UglifyJs
Unexpected token: operator (>) [static/preview.8657f91df26baa59b122.bundle.js:76641,30]

[craigmulligan]

This is because uglifyjs doesn't support es6, though it should be transpiled before by the babel loader before it hits the plugins.

[LucianBuzzo]

@craig-mulligan Yep that's what I've seen, except for whatever reason it's not transpiling required modules. There's an open issue about this storybookjs/storybook#1570

[craigmulligan]

Ah the world of babel presets. Let me take a quick look otherwise we can merge #48