Index: frontend/node_modules/postcss-js/process-result.js
===================================================================
--- frontend/node_modules/postcss-js/process-result.js	(revision 9af201e94b5a79beb92a30858fc54de4bc3b9449)
+++ frontend/node_modules/postcss-js/process-result.js	(revision 9af201e94b5a79beb92a30858fc54de4bc3b9449)
@@ -0,0 +1,11 @@
+let objectify = require('./objectifier')
+
+module.exports = function processResult(result) {
+  if (console && console.warn) {
+    result.warnings().forEach(warn => {
+      let source = warn.plugin || 'PostCSS'
+      console.warn(source + ': ' + warn.text)
+    })
+  }
+  return objectify(result.root)
+}