first commit

test/e2e/proxy-request-with-middleware/app/middleware.js

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+import { NextResponse } from 'next/server'
+
+export async function middleware() {
+  return NextResponse.next()
+}

test/e2e/proxy-request-with-middleware/app/pages/api/index.js

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+import request from 'request'
+
+export const config = {
+  api: {
+    bodyParser: false,
+  },
+}
+
+export default function handler(req, res) {
+  return req
+    .pipe(
+      request(
+        `http://${
+          // node v18 resolves to IPv6 by default so force IPv4
+          process.version.startsWith('v18.') && !process.env.VERCEL_URL
+            ? `127.0.0.1:${req.headers.host.split(':').pop() || ''}`
+            : req.headers.host
+        }${req.url}/post`,
+        {
+          followAllRedirects: false,
+          followRedirect: false,
+          gzip: true,
+          json: false,
+        }
+      )
+    )
+    .pipe(res)
+}

test/e2e/proxy-request-with-middleware/app/pages/api/post.js

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+export const config = {
+  api: {
+    bodyParser: false,
+  },
+}
+
+export default function handler(req, res) {
+  return res.json({
+    method: req.method,
+    headers: req.headers,
+  })
+}