Update index.js

[chasewalden]

Set ...postcss = true after exporting plugin

When using with postcss-load-config (i.e. from postcss-cli), the plugin is incorrectly loaded when using the non-require style

i.e. with:

// file: postcss.config.js
module.exports = {
  plugins: {
    'postcss-font-magician': {},
    'autoprefixer': {}
  }
}

Because the object has no keys, this prevents the plugin function from being called...
https://github.com/postcss/postcss-load-config/blob/170ec7735f9c1df2f81b068988d81d351fead0a1/src/plugins.js#L18-L26

... and since the postcss = true is overwritten ...

https://github.com/postcss/postcss-load-config/blob/170ec7735f9c1df2f81b068988d81d351fead0a1/src/plugins.js#L63-L64

... is never called

[maxnordlund]

Would love to see this fixed. The title of the PR isn't super clear, but I believe this will fix Parcel usage as well, see #103 and #88.

[b1mind]

Would love to see this merged as it fixes for Vite too.

[romainmenke]

Thank you!