@storybook/react@3.0.0-alpha.1 doesn't work with import inside css in react-scripts@^1

[oriSomething]

As I wrote in #1073 (I've being asked to open a new issue):

Might related to #1027

But, it doesn't compatible with react-scripts@^1 when it comes to CSS. If you have a CSS files that import other CSS files, it breaks with this error:

ERROR in ./~/css-loader?{"importLoaders":1}!./~/postcss-loader/lib?{"plugins":[null]}!./src/stories/blah.css
Module build failed: TypeError: Cannot read property 'postcss' of null

Code example:

/* a.css */
@import "./b.css";

/* b.css */

:root {
  /* ... */
}

// Story file
import "./a.css";

If there is more information needed, please tell me.

[shilman]

Thanks @oriSomething! We'll look into it!

[ndelangen]

I will look into this.

I have reproduced the issue.

I have a fix!

[ndelangen]

It should be fixed now:

Successfully published:
 - @storybook/react-native@3.0.0-alpha.3
 - @storybook/react@3.0.0-alpha.3
 - @storybook/addon-actions@3.0.0-alpha.3
 - @storybook/addon-comments@3.0.0-alpha.3
 - @storybook/addon-graphql@3.0.0-alpha.3
 - @storybook/addon-info@3.0.0-alpha.3
 - @storybook/addon-knobs@3.0.0-alpha.3
 - @storybook/addon-links@3.0.0-alpha.3
 - @storybook/addon-notes@3.0.0-alpha.3
 - @storybook/addon-options@3.0.0-alpha.3
 - @storybook/addon-storyshots@3.0.0-alpha.3