update postcss.config.js to fix warnings

Return empty array if the condition is not met to avoid a null/undefined PostCSS plugin. Related PR: vercel#11366
oddnavy · Apr 21, 2020 · 97649d4 · 97649d4
1 parent 16e7871
commit 97649d4
Showing 1 changed file with 14 additions and 11 deletions.
diff --git a/examples/blog-starter/postcss.config.js b/examples/blog-starter/postcss.config.js
@@ -1,18 +1,21 @@
 module.exports = {
   plugins: [
     'tailwindcss',
-    process.env.NODE_ENV === 'production'
+    ...(process.env.NODE_ENV === 'production'
       ? [
-          '@fullhuman/postcss-purgecss',
-          {
-            content: [
-              './pages/**/*.{js,jsx,ts,tsx}',
-              './components/**/*.{js,jsx,ts,tsx}',
-            ],
-            defaultExtractor: content => content.match(/[\w-/:]+(?<!:)/g) || [],
-          },
+          [
+            '@fullhuman/postcss-purgecss',
+            {
+              content: [
+                './pages/**/*.{js,jsx,ts,tsx}',
+                './components/**/*.{js,jsx,ts,tsx}',
+              ],
+              defaultExtractor: content =>
+                content.match(/[\w-/:]+(?<!:)/g) || [],
+            },
+          ],
         ]
-      : undefined,
+      : []),
     'postcss-preset-env',
   ],
-}
+}