Merge branch 'canary' into bump-react

packages/next/server/base-server.ts

@@ -1216,6 +1216,8 @@ export default abstract class Server<ServerOptions extends Options = Options> {
     const isDataReq =
       !!query.__nextDataReq && (isSSG || hasServerProps || isServerComponent)
 
+    delete query.__nextDataReq
+
     // normalize req.url for SSG paths as it is not exposed
     // to getStaticProps and the asPath should not expose /_next/data
     if (
@@ -1227,7 +1229,11 @@ export default abstract class Server<ServerOptions extends Options = Options> {
       req.url = this.stripNextDataPath(req.url)
     }
 
-    if (!!query.__nextDataReq) {
+    if (
+      !isServerComponent &&
+      !!req.headers['x-nextjs-data'] &&
+      (!res.statusCode || res.statusCode === 200)
+    ) {
       res.setHeader(
         'x-nextjs-matched-path',
         `${query.__nextLocale ? `/${query.__nextLocale}` : ''}${pathname}`
@@ -1243,7 +1249,6 @@ export default abstract class Server<ServerOptions extends Options = Options> {
         return null
       }
     }
-    delete query.__nextDataReq
 
     // Don't delete query.__flight__ yet, it still needs to be used in renderToHTML later
     const isFlightRequest = Boolean(

test/e2e/middleware-general/app/next.config.js

@@ -7,7 +7,7 @@ module.exports = {
     return [
       {
         source: '/redirect-1',
-        destination: '/somewhere-else',
+        destination: '/somewhere/else',
         permanent: false,
       },
     ]

test/e2e/middleware-general/test/index.test.ts

@@ -129,14 +129,14 @@ describe('Middleware Runtime', () => {
     )
     expect(res.status).toBe(307)
     expect(new URL(res.headers.get('location'), 'http://n').pathname).toBe(
-      '/somewhere-else'
+      '/somewhere/else'
     )
 
     const browser = await webdriver(next.url, `${locale}/`)
     await browser.eval(`next.router.push('/redirect-1')`)
     await check(async () => {
       const pathname = await browser.eval('location.pathname')
-      return pathname === '/somewhere-else' ? 'success' : pathname
+      return pathname === '/somewhere/else' ? 'success' : pathname
     }, 'success')
   })
 
@@ -146,11 +146,13 @@ describe('Middleware Runtime', () => {
     expect(await res.text()).toContain('Hello World')
 
     const browser = await webdriver(next.url, `${locale}/`)
+    await browser.eval('window.beforeNav = 1')
     await browser.eval(`next.router.push('/rewrite-1')`)
     await check(async () => {
       const content = await browser.eval('document.documentElement.innerHTML')
       return content.includes('Hello World') ? 'success' : content
     }, 'success')
+    expect(await browser.eval('window.beforeNav')).toBe(1)
   })
 
   it('should rewrite correctly for non-SSG/SSP page', async () => {
@@ -365,7 +367,9 @@ describe('Middleware Runtime', () => {
     const res = await fetchViaHTTP(next.url, `/ssr-page`)
     const dataRes = await fetchViaHTTP(
       next.url,
-      `/_next/data/${next.buildId}/en/ssr-page.json`
+      `/_next/data/${next.buildId}/en/ssr-page.json`,
+      undefined,
+      { headers: { 'x-nextjs-data': '1' } }
     )
     const json = await dataRes.json()
     expect(json.pageProps.message).toEqual('Bye Cruel World')

test/e2e/middleware-redirects/test/index.test.ts

@@ -146,8 +146,7 @@ describe('Middleware Redirect', () => {
       const browser = await webdriver(next.url, `${locale}`)
       await browser.elementByCss('#link-to-api-with-locale').click()
       await browser.waitForCondition('window.location.pathname === "/api/ok"')
-      const body = await browser.elementByCss('body').text()
-      expect(body).toBe('ok')
+      await check(() => browser.elementByCss('body').text(), 'ok')
     })
   }
 })

test/e2e/middleware-rewrites/app/middleware.js

@@ -22,6 +22,16 @@ export async function middleware(request) {
     )
   }
 
+  if (url.pathname === '/rewrite-to-beforefiles-rewrite') {
+    url.pathname = '/beforefiles-rewrite'
+    return NextResponse.rewrite(url)
+  }
+
+  if (url.pathname === '/rewrite-to-afterfiles-rewrite') {
+    url.pathname = '/afterfiles-rewrite'
+    return NextResponse.rewrite(url)
+  }
+
   if (url.pathname.startsWith('/to-blog')) {
     const slug = url.pathname.split('/').pop()
     url.pathname = `/fallback-true-blog/${slug}`

test/e2e/middleware-rewrites/app/next.config.js

@@ -3,4 +3,21 @@ module.exports = {
     locales: ['ja', 'en', 'fr', 'es'],
     defaultLocale: 'en',
   },
+  rewrites() {
+    return {
+      beforeFiles: [
+        {
+          source: '/beforefiles-rewrite',
+          destination: '/ab-test/a',
+        },
+      ],
+      afterFiles: [
+        {
+          source: '/afterfiles-rewrite',
+          destination: '/ab-test/b',
+        },
+      ],
+      fallback: [],
+    }
+  },
 }

test/e2e/middleware-rewrites/app/pages/index.js

@@ -15,6 +15,18 @@ export default function Home() {
         <a id="rewrite-me-to-about">Rewrite me to about</a>
       </Link>
       <div />
+      <Link href="/rewrite-to-beforefiles-rewrite">
+        <a id="rewrite-to-beforefiles-rewrite">
+          Rewrite me to beforeFiles Rewrite
+        </a>
+      </Link>
+      <div />
+      <Link href="/rewrite-to-afterfiles-rewrite">
+        <a id="rewrite-to-afterfiles-rewrite">
+          Rewrite me to afterFiles Rewrite
+        </a>
+      </Link>
+      <div />
       <Link href="/rewrite-me-to-vercel">
         <a>Rewrite me to Vercel</a>
       </Link>

test/e2e/middleware-rewrites/test/index.test.ts

@@ -24,6 +24,7 @@ describe('Middleware Rewrite', () => {
   tests()
   testsWithLocale()
   testsWithLocale('/fr')
+
   function tests() {
     // TODO: middleware effect headers aren't available here
     it.skip('includes the locale in rewrites by default', async () => {
@@ -271,6 +272,41 @@ describe('Middleware Rewrite', () => {
       await browser.elementByCss('#link-en2').click()
       await browser.waitForElementByCss('.en')
     })
+
+    it('should allow to rewrite to a `beforeFiles` rewrite config', async () => {
+      const res = await fetchViaHTTP(
+        next.url,
+        `/rewrite-to-beforefiles-rewrite`
+      )
+      expect(res.status).toBe(200)
+      expect(await res.text()).toContain('Welcome Page A')
+
+      const browser = await webdriver(next.url, '/')
+      await browser.elementByCss('#rewrite-to-beforefiles-rewrite').click()
+      await check(
+        () => browser.eval('document.documentElement.innerHTML'),
+        /Welcome Page A/
+      )
+      expect(await browser.eval('window.location.pathname')).toBe(
+        `/rewrite-to-beforefiles-rewrite`
+      )
+    })
+
+    it('should allow to rewrite to a `afterFiles` rewrite config', async () => {
+      const res = await fetchViaHTTP(next.url, `/rewrite-to-afterfiles-rewrite`)
+      expect(res.status).toBe(200)
+      expect(await res.text()).toContain('Welcome Page B')
+
+      const browser = await webdriver(next.url, '/')
+      await browser.elementByCss('#rewrite-to-afterfiles-rewrite').click()
+      await check(
+        () => browser.eval('document.documentElement.innerHTML'),
+        /Welcome Page B/
+      )
+      expect(await browser.eval('window.location.pathname')).toBe(
+        `/rewrite-to-afterfiles-rewrite`
+      )
+    })
   }
 
   function testsWithLocale(locale = '') {