Optimize server bundle size (#57305)

These are not used by the Next.js server and can save up to 15% size of the base Edge worker by ignoring them.
vercel · Oct 24, 2023 · 4eaefba · 4eaefba
1 parent 69388a5
commit 4eaefba
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/packages/next/src/build/create-compiler-aliases.ts b/packages/next/src/build/create-compiler-aliases.ts
@@ -260,6 +260,9 @@ export function createRSCAliases(
     'react-server-dom-webpack/client.edge$': `next/dist/compiled/react-server-dom-webpack${bundledReactChannel}/client.edge`,
     'react-server-dom-webpack/server.edge$': `next/dist/compiled/react-server-dom-webpack${bundledReactChannel}/server.edge`,
     'react-server-dom-webpack/server.node$': `next/dist/compiled/react-server-dom-webpack${bundledReactChannel}/server.node`,
+    // optimisations to ignore the legacy build of react-dom/server
+    './cjs/react-dom-server-legacy.browser.production.min.js': `next/dist/build/noop-react-dom-server-legacy`,
+    './cjs/react-dom-server-legacy.browser.development.js': `next/dist/build/noop-react-dom-server-legacy`,
   }
 
   if (!isEdgeServer) {