postcss-loader: Function config does not work in webpack 2 with postcss-loader 1.0.0

To use a function config, parseOptions expects the typeof of the options to be a 'function', but that is not allowed by the webpack 2 schema.

https://github.com/postcss/postcss-loader/blob/master/index.js#L8-L11

WebpackOptionsValidationError: Invalid configuration object. Webpack has been initialised using a configuration object that does not match the API schema.
 - configuration.module.rules[4].use[2].options should be one of these:
   object | string
 - configuration.module.rules[4].use[2] should be one of these:
   string | object { loader?, options?, query? }

About this issue

Original URL
State: closed
Created 8 years ago
Comments: 33 (28 by maintainers)

Most upvoted comments

@ai 👍 tested it locally and your changes work fine, but can you wait maybe 1/2 days before release next minor ? 😃 final postcss-load-config needs onyl a few small fixes (mostly done) and testing for

if (plugin.default && typeof plugin.default === 'function')  plugin = plugin.default

e.g for postcss-sprites

The fixes and adding the above is really easy but I’m again busy requesting church asylum for someone, it’s always extremely time consuming and when there is progress you need to be responsive quickly, it’s really damaging to the ‘flow’ currently, but bla bla bla 😛 , the issue for autoprefixer/css-loader docs refactoring is also pending and I would also like to find and experiment with aliases for ctx.webpack. But the latter could also be part of next minor and load-config is a patch anyways, so in case you don’t want to wait, go ahead 😎

michael-ciniawsky on Oct 20, 2016