Update _document.js (#14936)

Fix key warning
vercel · Jul 7, 2020 · 38b8eca · 38b8eca
1 parent e5f2a05
commit 38b8eca
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/examples/with-stitches-styled/pages/_document.js b/examples/with-stitches-styled/pages/_document.js
@@ -20,8 +20,8 @@ export default class MyDocument extends Document {
         styles: (
           <>
             {initialProps.styles}
-            {extractedStyles.map((content) => (
-              <style>{content}</style>
+            {extractedStyles.map((content, index) => (
+              <style key={index}>{content}</style>
             ))}
           </>
         ),