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withastro · Jan 23, 2025 · e5b6158 · e5b6158
1 parent 757dbb1
commit e5b6158
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diff --git a/.changeset/grumpy-phones-explode.md b/.changeset/grumpy-phones-explode.md
@@ -2,4 +2,4 @@
 '@astrojs/vercel': patch
 ---
 
-Updates edge middleware to support es2022 syntax
+Updates edge middleware to support esnext syntax
diff --git a/packages/vercel/src/serverless/middleware.ts b/packages/vercel/src/serverless/middleware.ts
@@ -42,7 +42,9 @@ export async function generateEdgeMiddleware(
 			contents: code,
 			resolveDir: fileURLToPath(root),
 		},
-		target: 'es2022',
+		// Vercel Edge runtime targets ESNext, because Cloudflare Workers update v8 weekly
+		// https://github.com/vercel/vercel/blob/1006f2ae9d67ea4b3cbb1073e79d14d063d42436/packages/next/scripts/build-edge-function-template.js
+		target: 'esnext',
 		platform: 'browser',
 		// esbuild automatically adds the browser, import and default conditions
 		// https://esbuild.github.io/api/#conditions