npm and error messages

node_modules/postcss-loader/lib/options.js

@@ -0,0 +1,25 @@
+'use strict'
+
+module.exports = function parseOptions (params) {
+  if (typeof params.plugins === 'function') {
+    params.plugins = params.plugins.call(this, this)
+  }
+
+  let plugins
+
+  if (typeof params.plugins === 'undefined') plugins = []
+  else if (Array.isArray(params.plugins)) plugins = params.plugins
+  else plugins = [ params.plugins ]
+
+  const options = {}
+
+  if (typeof params !== 'undefined') {
+    options.parser = params.parser
+    options.syntax = params.syntax
+    options.stringifier = params.stringifier
+  }
+
+  const exec = params && params.exec
+
+  return Promise.resolve({ options: options, plugins: plugins, exec: exec })
+}