first commit

test/integration/middleware-prefetch/middleware.js

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+import { NextResponse } from 'next/server'
+
+export function middleware(request) {
+  if (request.nextUrl.pathname === '/made-up') {
+    return NextResponse.rewrite(new URL('/ssg-page', request.url))
+  }
+
+  if (request.nextUrl.pathname === '/ssg-page-2') {
+    return Response.redirect('https://example.com')
+  }
+}

test/integration/middleware-prefetch/pages/index.js

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+import Link from 'next/link'
+
+export default function Home() {
+  return (
+    <div>
+      <p>Home Page</p>
+      <div />
+      <Link href="/made-up" id="made-up-link">
+        Madeup Page
+      </Link>
+      <div />
+      <Link href="/ssg-page-2" id="ssg-page-2">
+        SSG Page 2 (Redirect)
+      </Link>
+      <div />
+    </div>
+  )
+}

test/integration/middleware-prefetch/pages/ssg-page-2.js

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+export default () => 'Hello World'
+
+export function getStaticProps() {
+  return { props: {} }
+}

test/integration/middleware-prefetch/pages/ssg-page.js

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+export default () => 'Hello World'
+
+export function getStaticProps() {
+  return { props: {} }
+}

test/integration/middleware-prefetch/tests/index.test.ts

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+/* eslint-env jest */
+
+import { join } from 'path'
+import fs from 'fs-extra'
+import webdriver from 'next-webdriver'
+import {
+  check,
+  findPort,
+  killApp,
+  nextBuild,
+  nextStart,
+  getClientBuildManifestLoaderChunkUrlPath,
+} from 'next-test-utils'
+
+jest.setTimeout(1000 * 60 * 2)
+
+let appPort
+let app
+const context = {
+  appDir: join(__dirname, '../'),
+  buildLogs: { output: '', stdout: '', stderr: '' },
+  logs: { output: '', stdout: '', stderr: '' },
+}
+
+describe('Middleware Production Prefetch', () => {
+  ;(process.env.TURBOPACK_DEV ? describe.skip : describe)(
+    'production mode',
+    () => {
+      afterAll(() => killApp(app))
+      beforeAll(async () => {
+        const build = await nextBuild(context.appDir, undefined, {
+          stderr: true,
+          stdout: true,
+        })
+
+        await fs.readFile(join(context.appDir, '.next/BUILD_ID'), 'utf8')
+
+        context.buildLogs = {
+          output: build.stdout + build.stderr,
+          stderr: build.stderr,
+          stdout: build.stdout,
+        }
+
+        appPort = await findPort()
+        app = await nextStart(context.appDir, appPort, {
+          env: {
+            MIDDLEWARE_TEST: 'asdf',
+          },
+          onStdout(msg) {
+            context.logs.output += msg
+            context.logs.stdout += msg
+          },
+          onStderr(msg) {
+            context.logs.output += msg
+            context.logs.stderr += msg
+          },
+        })
+      })
+
+      it(`prefetch correctly for unexistent routes`, async () => {
+        const browser = await webdriver(appPort, `/`)
+        await browser.elementByCss('#made-up-link').moveTo()
+        await check(async () => {
+          const scripts = await browser.elementsByCss('script')
+          const attrs = await Promise.all(
+            scripts.map((script) => script.getAttribute('src'))
+          )
+          let chunk = getClientBuildManifestLoaderChunkUrlPath(
+            context.appDir,
+            '/ssg-page'
+          )
+          return attrs.find((src) => src.includes(chunk)) ? 'yes' : 'nope'
+        }, 'yes')
+      })
+
+      it(`does not prefetch provided path if it will be rewritten`, async () => {
+        const browser = await webdriver(appPort, `/`)
+        await browser.elementByCss('#ssg-page-2').moveTo()
+        await check(async () => {
+          const scripts = await browser.elementsByCss('script')
+          const attrs = await Promise.all(
+            scripts.map((script) => script.getAttribute('src'))
+          )
+          return attrs.find((src) =>
+            src.includes('/ssg-page-2' + (process.env.NEXT_RSPACK ? '-' : ''))
+          )
+            ? 'nope'
+            : 'yes'
+        }, 'yes')
+      })
+    }
+  )
+})