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Use consistent import of vendored React within vendored React #64806

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@eps1lon eps1lon commented Apr 19, 2024

Required for #64798

The previous import source was incorrect since it resulted in multiple versions of react-dom being bundled. I

  • double check all changed imports
  • Check with ? why we previously didn't do this on purpose
  • check if we can better guard in React or frameworks against multiple versions of React/ReactDOM (it's not just related to our issues but also React Hooks not working: Hooks + multiple instances of React facebook/react#13991)
    For starters, we should stop installing React in our test fixtures and ensure pnpm doesn't auto-install peer deps which it currently does in our test fixtures for unknown reasons.
failing test investigation

test/development/app-dir/edge-errors-hmr/index.test.ts

Reproducible. Unclear how to fix. Build errors are no longer displayed on the client

test/e2e/app-dir/ppr-full/ppr-full.test.ts

Reproducible. Some webpack builds don't seem to alias next/dist/compiled/react-dom to next/dist/server/future/route-modules/app-page/vendored/${layer}/react-dom for unknown reasons.
The case where I tracked it down to was next/dist/server/app-render/rsc/preloads.js resolving ReactDOM to next/dist/compiled/react-dom/index.js instead of next/dist/server/future/route-modules/app-page/vendored/rsc/react-dom.js in the Server bundles.

Closes NEXT-3176

@ijjk ijjk added created-by: Next.js team PRs by the Next.js team. type: next labels Apr 19, 2024
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ijjk commented Apr 19, 2024

Failing test suites

Commit: d206021

__NEXT_EXPERIMENTAL_PPR=true pnpm test-dev test/e2e/app-dir/app-client-cache/client-cache.test.ts (PPR)

  • app dir client cache semantics > should renew the 30s cache once the data is revalidated
Expand output

● app dir client cache semantics › should renew the 30s cache once the data is revalidated

expect(received).toBe(expected) // Object.is equality

Expected: "0.9407366537991813"
Received: "0.6690185802483675"

  35 |
  36 |       // the number should be the same, as we navigated within 30s.
> 37 |       expect(newNumber).toBe(initialNumber)
     |                         ^
  38 |
  39 |       // Fast forward to expire the cache
  40 |       await browser.eval(fastForwardTo, 30 * 1000)

  at Object.toBe (e2e/app-dir/app-client-cache/client-cache.test.ts:37:25)

Read more about building and testing Next.js in contributing.md.

__NEXT_EXPERIMENTAL_PPR=true pnpm test-dev test/development/app-dir/missing-required-html-tags/index.test.ts (PPR)

  • app-dir - missing required html tags > should show error overlay
  • app-dir - missing required html tags > should hmr when you fix the error
Expand output

● app-dir - missing required html tags › should show error overlay

expect(received).toBe(expected) // Object.is equality

Expected: true
Received: false

   8 |     const browser = await next.browser('/')
   9 |
> 10 |     expect(await hasRedbox(browser)).toBe(true)
     |                                      ^
  11 |     expect(await getRedboxDescription(browser)).toMatchInlineSnapshot(`
  12 |       "The following tags are missing in the Root Layout: <html>, <body>.
  13 |       Read more at https://nextjs.org/docs/messages/missing-root-layout-tags"

  at Object.toBe (development/app-dir/missing-required-html-tags/index.test.ts:10:38)

● app-dir - missing required html tags › should hmr when you fix the error

expect(received).toBe(expected) // Object.is equality

Expected: true
Received: false

  22 |     )
  23 |
> 24 |     expect(await hasRedbox(browser)).toBe(true)
     |                                      ^
  25 |     expect(await getRedboxDescription(browser)).toMatchInlineSnapshot(`
  26 |       "The following tags are missing in the Root Layout: <html>.
  27 |       Read more at https://nextjs.org/docs/messages/missing-root-layout-tags"

  at Object.toBe (development/app-dir/missing-required-html-tags/index.test.ts:24:38)

Read more about building and testing Next.js in contributing.md.

__NEXT_EXPERIMENTAL_PPR=true pnpm test-dev test/e2e/app-dir/app-basepath/index.test.ts (PPR)

  • app dir - basepath > should only make a single RSC call to the current page (/base/refresh)
  • app dir - basepath > should only make a single RSC call to the current page (/base/refresh?foo=bar)
Expand output

● app dir - basepath › should only make a single RSC call to the current page (/base/refresh)

expect(received).toBe(expected) // Object.is equality

Expected: 1
Received: 0

  90 |       await browser.elementByCss('button').click()
  91 |       await retry(async () => {
> 92 |         expect(rscRequests.length).toBe(1)
     |                                    ^
  93 |         expect(rscRequests[0]).toContain(`${next.url}${path}`)
  94 |       })
  95 |     }

  at toBe (e2e/app-dir/app-basepath/index.test.ts:92:36)
  at fn (lib/next-test-utils.ts:774:20)
  at e2e/app-dir/app-basepath/index.test.ts:91:7

● app dir - basepath › should only make a single RSC call to the current page (/base/refresh?foo=bar)

expect(received).toBe(expected) // Object.is equality

Expected: 1
Received: 0

  90 |       await browser.elementByCss('button').click()
  91 |       await retry(async () => {
> 92 |         expect(rscRequests.length).toBe(1)
     |                                    ^
  93 |         expect(rscRequests[0]).toContain(`${next.url}${path}`)
  94 |       })
  95 |     }

  at toBe (e2e/app-dir/app-basepath/index.test.ts:92:36)
  at fn (lib/next-test-utils.ts:774:20)
  at e2e/app-dir/app-basepath/index.test.ts:91:7

Read more about building and testing Next.js in contributing.md.

__NEXT_EXPERIMENTAL_PPR=true pnpm test-dev test/e2e/app-dir/app-esm-js/index.test.ts (PPR)

  • app-dir - esm js extension > should be able to render nextjs api in app router
Expand output

● app-dir - esm js extension › should be able to render nextjs api in app router

expect(received).toBe(expected) // Object.is equality

Expected: 1
Received: 0

  20 |     await validateDomNodes('#without-ext')
  21 |
> 22 |     expect($('head link[href="/test-ext.js"]').length).toBe(1)
     |                                                        ^
  23 |     expect($('head link[href="/test.js"]').length).toBe(1)
  24 |   })
  25 |

  at Object.toBe (e2e/app-dir/app-esm-js/index.test.ts:22:56)

Read more about building and testing Next.js in contributing.md.

__NEXT_EXPERIMENTAL_PPR=true pnpm test-start test/e2e/app-dir/actions-allowed-origins/app-action-allowed-origins.test.ts (PPR)

  • app-dir action allowed origins > should pass if localhost is set as a safe origin
Expand output

● app-dir action allowed origins › should pass if localhost is set as a safe origin

TIMED OUT: hi



undefined

  686 |
  687 |   if (hardError) {
> 688 |     throw new Error('TIMED OUT: ' + regex + '\n\n' + content + '\n\n' + lastErr)
      |           ^
  689 |   }
  690 |   return false
  691 | }

  at check (lib/next-test-utils.ts:688:11)
  at Object.<anonymous> (e2e/app-dir/actions-allowed-origins/app-action-allowed-origins.test.ts:27:5)

Read more about building and testing Next.js in contributing.md.

__NEXT_EXPERIMENTAL_PPR=true pnpm test-start test/e2e/app-dir/app/useReportWebVitals.test.ts (PPR)

  • useReportWebVitals hook > should send web-vitals
Expand output

● useReportWebVitals hook › should send web-vitals

TIMED OUT: success

undefined

Error: expect(received).toBeGreaterThanOrEqual(expected)

Expected: >= 6
Received:    0

  686 |
  687 |   if (hardError) {
> 688 |     throw new Error('TIMED OUT: ' + regex + '\n\n' + content + '\n\n' + lastErr)
      |           ^
  689 |   }
  690 |   return false
  691 | }

  at check (lib/next-test-utils.ts:688:11)
  at Object.<anonymous> (e2e/app-dir/app/useReportWebVitals.test.ts:40:5)

Read more about building and testing Next.js in contributing.md.

TURBOPACK=1 pnpm test-start test/e2e/app-dir/metadata/metadata.test.ts (turbopack)

  • app dir - metadata > basic > should support other basic tags (edge)
Expand output

● app dir - metadata › basic › should support other basic tags (edge)

expect(received).toContain(expected) // indexOf

Expected value: "/preconnect-url"
Received array: []

  36 |           expect(values).not.toContain(undefined)
  37 |         } else {
> 38 |           expect(values).toContain(expected)
     |                          ^
  39 |         }
  40 |       }
  41 |     }

  at toContain (e2e/app-dir/metadata/metadata.test.ts:38:26)
      at async Promise.all (index 2)
  at e2e/app-dir/metadata/metadata.test.ts:133:7
  at Object.<anonymous> (e2e/app-dir/metadata/metadata.test.ts:255:7)

Read more about building and testing Next.js in contributing.md.

TURBOPACK=1 pnpm test-start test/e2e/app-dir/ppr-navigations/avoid-popstate-flash/avoid-popstate-flash.test.ts (turbopack)

  • avoid-popstate-flash > does not flash back to partial PPR data during back/forward navigation
Expand output

● avoid-popstate-flash › does not flash back to partial PPR data during back/forward navigation

thrown: "Exceeded timeout of 60000 ms for a test.
Add a timeout value to this test to increase the timeout, if this is a long-running test. See https://jestjs.io/docs/api#testname-fn-timeout."

  17 |   })
  18 |
> 19 |   test('does not flash back to partial PPR data during back/forward navigation', async () => {
     |   ^
  20 |     const TestLog = createTestLog()
  21 |     let autoresolveRequests = true
  22 |     let pendingRequests = new Map()

  at test (e2e/app-dir/ppr-navigations/avoid-popstate-flash/avoid-popstate-flash.test.ts:19:3)
  at Object.describe (e2e/app-dir/ppr-navigations/avoid-popstate-flash/avoid-popstate-flash.test.ts:6:1)

Read more about building and testing Next.js in contributing.md.

__NEXT_EXPERIMENTAL_PPR=true pnpm test-start test/e2e/app-dir/interception-dynamic-segment-middleware/interception-dynamic-segment-middleware.test.ts (PPR)

  • interception-dynamic-segment-middleware > should work when interception route is paired with a dynamic segment & middleware
Expand output

● interception-dynamic-segment-middleware › should work when interception route is paired with a dynamic segment & middleware

TIMED OUT: /intercepted/



undefined

  686 |
  687 |   if (hardError) {
> 688 |     throw new Error('TIMED OUT: ' + regex + '\n\n' + content + '\n\n' + lastErr)
      |           ^
  689 |   }
  690 |   return false
  691 | }

  at check (lib/next-test-utils.ts:688:11)
  at Object.<anonymous> (e2e/app-dir/interception-dynamic-segment-middleware/interception-dynamic-segment-middleware.test.ts:13:5)

Read more about building and testing Next.js in contributing.md.

TURBOPACK=1 pnpm test-start test/e2e/app-dir/ppr-full/ppr-full.test.ts (turbopack)

  • ppr-full > Dynamic Data pages > Incidental postpones > should initially render with optimistic UI
  • ppr-full > Dynamic Data pages > Optimistic UI > should initially render with optimistic UI
Expand output

● ppr-full › Dynamic Data pages › Optimistic UI › should initially render with optimistic UI

expect(received).toEqual(expected) // deep equality

Expected: "foo search: bar"
Received: "foo search: optimistic"

  464 |                 'document.getElementById("foosearch").textContent'
  465 |               )
> 466 |             ).toEqual('foo search: bar')
      |               ^
  467 |           } finally {
  468 |             await browser.close()
  469 |           }

  at Object.toEqual (e2e/app-dir/ppr-full/ppr-full.test.ts:466:15)

● ppr-full › Dynamic Data pages › Incidental postpones › should initially render with optimistic UI

expect(received).toEqual(expected) // deep equality

Expected: "foo search: bar"
Received: "foo search: optimistic"

  541 |                 'document.getElementById("foosearch").textContent'
  542 |               )
> 543 |             ).toEqual('foo search: bar')
      |               ^
  544 |           } finally {
  545 |             await browser.close()
  546 |           }

  at Object.toEqual (e2e/app-dir/ppr-full/ppr-full.test.ts:543:15)

Read more about building and testing Next.js in contributing.md.

TURBOPACK=1 pnpm test-start test/e2e/app-dir/ppr-navigations/stale-prefetch-entry/stale-prefetch-entry.test.ts (turbopack)

  • stale-prefetch-entry > works if a prefetched route entry has become stale (too much time has elapsed since it was prefetched)
Expand output

● stale-prefetch-entry › works if a prefetched route entry has become stale (too much time has elapsed since it was prefetched)

thrown: "Exceeded timeout of 60000 ms for a test.
Add a timeout value to this test to increase the timeout, if this is a long-running test. See https://jestjs.io/docs/api#testname-fn-timeout."

  21 |   // data as if it were complete data that didn't contain dynamic holes. This
  22 |   // prevented the dynamic data from ever streaming in.
> 23 |   test(
     |   ^
  24 |     'works if a prefetched route entry has become stale (too much ' +
  25 |       'time has elapsed since it was prefetched)',
  26 |     async () => {

  at test (e2e/app-dir/ppr-navigations/stale-prefetch-entry/stale-prefetch-entry.test.ts:23:3)
  at Object.describe (e2e/app-dir/ppr-navigations/stale-prefetch-entry/stale-prefetch-entry.test.ts:6:1)

Read more about building and testing Next.js in contributing.md.

TURBOPACK=1 pnpm test-dev test/e2e/app-dir/dynamic/dynamic.test.ts (turbopack)

  • app dir - next/dynamic > no SSR > should not render client component imported through ssr: false in client components in edge runtime
Expand output

● app dir - next/dynamic › no SSR › should not render client component imported through ssr: false in client components in edge runtime

page.waitForSelector: Timeout 60000ms exceeded.
Call log:
  - waiting for locator('#ssr-false-server-module')

  421 |     return this.chain(() => {
  422 |       return page
> 423 |         .waitForSelector(selector, { timeout, state: 'attached' })
      |          ^
  424 |         .then(async (el) => {
  425 |           // it seems selenium waits longer and tests rely on this behavior
  426 |           // so we wait for the load event fire before returning

  at waitForSelector (lib/browsers/playwright.ts:423:10)

Read more about building and testing Next.js in contributing.md.

TURBOPACK=1 pnpm test-start test/e2e/app-dir/taint/process-taint.test.ts (turbopack)

  • app dir - taint > should error when passing process env to client component
Expand output

● app dir - taint › should error when passing process env to client component

thrown: "Exceeded timeout of 60000 ms for a test.
Add a timeout value to this test to increase the timeout, if this is a long-running test. See https://jestjs.io/docs/api#testname-fn-timeout."

   5 |
   6 | export function runTest({ next, isNextDev }) {
>  7 |   it('should error when passing process env to client component', async () => {
     |   ^
   8 |     const browser = await next.browser('/')
   9 |     expect(await browser.waitForElementByCss('#error-component').text()).toBe(
  10 |       isNextDev

  at it (e2e/app-dir/taint/process-taint.test.ts:7:3)
  at runTest (e2e/app-dir/taint/process-taint.test.ts:22:3)
  at Object.describe (e2e/app-dir/taint/process-taint.test.ts:17:1)

Read more about building and testing Next.js in contributing.md.

pnpm test-start test/e2e/app-dir/ppr-navigations/loading-tsx-no-partial-rendering/loading-tsx-no-partial-rendering.test.ts

  • loading-tsx-no-partial-rendering > when PPR is enabled, loading.tsx boundaries do not cause a partial prefetch
Expand output

● loading-tsx-no-partial-rendering › when PPR is enabled, loading.tsx boundaries do not cause a partial prefetch

page.waitForSelector: Timeout 60000ms exceeded.
Call log:
  - waiting for locator('a')

  421 |     return this.chain(() => {
  422 |       return page
> 423 |         .waitForSelector(selector, { timeout, state: 'attached' })
      |          ^
  424 |         .then(async (el) => {
  425 |           // it seems selenium waits longer and tests rely on this behavior
  426 |           // so we wait for the load event fire before returning

  at waitForSelector (lib/browsers/playwright.ts:423:10)

Read more about building and testing Next.js in contributing.md.

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ijjk commented Apr 19, 2024

Stats from current PR

Default Build (Increase detected ⚠️)
General Overall increase ⚠️
vercel/next.js canary vercel/next.js sebbie/react-dom-versions Change
buildDuration 15.8s 14.5s N/A
buildDurationCached 8.6s 7s N/A
nodeModulesSize 360 MB 370 MB ⚠️ +10.1 MB
nextStartRea..uration (ms) 392ms 391ms N/A
Client Bundles (main, webpack)
vercel/next.js canary vercel/next.js sebbie/react-dom-versions Change
1103-HASH.js gzip 31.8 kB 31.8 kB N/A
1a9f679d-HASH.js gzip 53.5 kB 53.5 kB N/A
335-HASH.js gzip 5.09 kB 5.09 kB N/A
7953.HASH.js gzip 169 B 169 B
framework-HASH.js gzip 45.2 kB 45.2 kB
main-app-HASH.js gzip 231 B 229 B N/A
main-HASH.js gzip 31.5 kB 31.5 kB N/A
webpack-HASH.js gzip 1.65 kB 1.65 kB N/A
Overall change 45.4 kB 45.4 kB
Legacy Client Bundles (polyfills)
vercel/next.js canary vercel/next.js sebbie/react-dom-versions Change
polyfills-HASH.js gzip 31 kB 31 kB
Overall change 31 kB 31 kB
Client Pages
vercel/next.js canary vercel/next.js sebbie/react-dom-versions Change
_app-HASH.js gzip 192 B 193 B N/A
_error-HASH.js gzip 192 B 193 B N/A
amp-HASH.js gzip 507 B 511 B N/A
css-HASH.js gzip 341 B 343 B N/A
dynamic-HASH.js gzip 2.52 kB 2.52 kB
edge-ssr-HASH.js gzip 266 B 265 B N/A
head-HASH.js gzip 362 B 365 B N/A
hooks-HASH.js gzip 392 B 392 B
image-HASH.js gzip 4.32 kB 4.32 kB N/A
index-HASH.js gzip 268 B 268 B
link-HASH.js gzip 2.69 kB 2.7 kB N/A
routerDirect..HASH.js gzip 329 B 328 B N/A
script-HASH.js gzip 397 B 397 B
withRouter-HASH.js gzip 324 B 324 B
1afbb74e6ecf..834.css gzip 106 B 106 B
Overall change 4 kB 4 kB
Client Build Manifests
vercel/next.js canary vercel/next.js sebbie/react-dom-versions Change
_buildManifest.js gzip 483 B 484 B N/A
Overall change 0 B 0 B
Rendered Page Sizes
vercel/next.js canary vercel/next.js sebbie/react-dom-versions Change
index.html gzip 527 B 527 B
link.html gzip 542 B 541 B N/A
withRouter.html gzip 524 B 524 B
Overall change 1.05 kB 1.05 kB
Edge SSR bundle Size
vercel/next.js canary vercel/next.js sebbie/react-dom-versions Change
edge-ssr.js gzip 94.7 kB 94.7 kB N/A
page.js gzip 181 kB 179 kB N/A
Overall change 0 B 0 B
Middleware size
vercel/next.js canary vercel/next.js sebbie/react-dom-versions Change
middleware-b..fest.js gzip 624 B 622 B N/A
middleware-r..fest.js gzip 156 B 156 B
middleware.js gzip 25.7 kB 25.7 kB N/A
edge-runtime..pack.js gzip 839 B 839 B
Overall change 995 B 995 B
Next Runtimes Overall increase ⚠️
vercel/next.js canary vercel/next.js sebbie/react-dom-versions Change
app-page-exp...dev.js gzip 171 kB 264 kB ⚠️ +93.3 kB
app-page-exp..prod.js gzip 98.4 kB 150 kB ⚠️ +51.4 kB
app-page-tur..prod.js gzip 99.9 kB 151 kB ⚠️ +51.4 kB
app-page-tur..prod.js gzip 94.3 kB 94.3 kB
app-page.run...dev.js gzip 157 kB 157 kB
app-page.run..prod.js gzip 93 kB 93 kB
app-route-ex...dev.js gzip 21.5 kB 21.5 kB
app-route-ex..prod.js gzip 15.2 kB 15.2 kB
app-route-tu..prod.js gzip 15.2 kB 15.2 kB
app-route-tu..prod.js gzip 15 kB 15 kB
app-route.ru...dev.js gzip 21.3 kB 21.3 kB
app-route.ru..prod.js gzip 15 kB 15 kB
pages-api-tu..prod.js gzip 9.55 kB 9.55 kB
pages-api.ru...dev.js gzip 9.82 kB 9.82 kB
pages-api.ru..prod.js gzip 9.55 kB 9.55 kB
pages-turbo...prod.js gzip 21.5 kB 21.5 kB
pages.runtim...dev.js gzip 22.1 kB 22.1 kB
pages.runtim..prod.js gzip 21.5 kB 21.5 kB
server.runti..prod.js gzip 51.6 kB 51.6 kB
Overall change 962 kB 1.16 MB ⚠️ +196 kB
build cache Overall increase ⚠️
vercel/next.js canary vercel/next.js sebbie/react-dom-versions Change
0.pack gzip 1.62 MB 1.62 MB ⚠️ +815 B
index.pack gzip 112 kB 116 kB ⚠️ +3.62 kB
Overall change 1.73 MB 1.73 MB ⚠️ +4.44 kB
Diff details
Diff for edge-ssr.js

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Diff for app-page-exp..ntime.dev.js
failed to diff
Diff for app-page-exp..time.prod.js

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Diff for app-page-tur..time.prod.js

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Commit: d206021

@ijjk ijjk added the tests label Apr 20, 2024
@@ -35,6 +35,7 @@ function makeAppAliases(reactChannel = '') {
'react/react.react-server$': `next/dist/compiled/react${reactChannel}/react.react-server`,
'react-dom/server-rendering-stub$': `next/dist/compiled/react-dom${reactChannel}/server-rendering-stub`,
'react-dom$': `next/dist/compiled/react-dom${reactChannel}/server-rendering-stub`,
'next/dist/compiled/react-dom$': `next/dist/compiled/react-dom${reactChannel}/server-rendering-stub`,
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Assuming that this is needed to resolve the comment in the taskfile:

// Note that we don't replace react-dom with next/dist/compiled/react-dom
// as it mighe be aliased to the server rendering stub.

@eps1lon eps1lon force-pushed the sebbie/react-dom-versions branch 2 times, most recently from 264a433 to 724c39d Compare April 21, 2024 18:59
@eps1lon eps1lon changed the title Ensure a single react-dom version Ensure a single react-dom version in App Router Apr 23, 2024
@ijjk ijjk added the Turbopack Related to Turbopack with Next.js. label Apr 23, 2024
packages/next/package.json Outdated Show resolved Hide resolved
test/lib/next-modes/base.ts Outdated Show resolved Hide resolved
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eps1lon commented Apr 25, 2024

Abandoning this for now. Too many hard to debug issues and fbd6174 (#64798) seems to fix the underlying issue as well.

@eps1lon eps1lon closed this Apr 25, 2024
@eps1lon eps1lon deleted the sebbie/react-dom-versions branch April 25, 2024 18:22
It would take precedence over any potential subsequent alias of `next/*` e.g. aliasing `next/dist/compiled/react` to react.react-server
@eps1lon eps1lon restored the sebbie/react-dom-versions branch April 28, 2024 11:43
This reverts commit 4e77092.

We do need it since `next build` just requires `next`.
Every require we do needs to use the vendored React.
We can't rely on bundlers here since `next build` uses default Node.js module resolution.
@eps1lon eps1lon changed the title Ensure a single react-dom version in App Router Use consistent import of vendored React within vendored React Apr 28, 2024
@eps1lon eps1lon reopened this Apr 28, 2024
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