[server] Configure custom properties with preserve: false (#601)

sanity-io · Feb 16, 2018 · 2a1d5d7 · 2a1d5d7
1 parent 1b0c248
commit 2a1d5d7
Showing 1 changed file with 8 additions and 1 deletion.
diff --git a/packages/@sanity/server/src/configs/postcss.config.js b/packages/@sanity/server/src/configs/postcss.config.js
@@ -3,6 +3,13 @@ const webpackIntegration = require('@sanity/webpack-integration/v3')
 
 module.exports = {
   plugins: webpackIntegration.getPostcssPlugins({
-    basePath: resolveProjectRoot({sync: true})
+    basePath: resolveProjectRoot({sync: true}),
+    cssnext: {
+      features: {
+        customProperties: {
+          preserve: false
+        }
+      }
+    }
   })
 }