mirror of
https://github.com/hanzoai/next.js.git
synced 2026-09-24 17:00:51 +00:00
Aurora ScharffandGitHub
18d2e2da5f
## Summary
The instant / blocking-prerender insight console errors printed a docs
URL under each fix option (two or three anchors per message). This
collapses them to a single `Learn more:` link at the end of each
message, while keeping the `[stream]`/`[cache]`/`[block]` fix-option
labels. It restores the single-link format these builders originally
shipped with.
**Before:**
```
Ways to fix this:
- [stream] Provide a placeholder with `<Suspense fallback={...}>` around the data access
https://nextjs.org/docs/messages/blocking-prerender-runtime#wrap-in-or-move-into-suspense
- [block] Set `export const instant = false` to allow a blocking route
https://nextjs.org/docs/messages/blocking-prerender-runtime#allow-blocking-route
```
**After:**
```
Ways to fix this:
- [stream] Provide a placeholder with `<Suspense fallback={...}>` around the data access
- [block] Set `export const instant = false` to allow a blocking route
Learn more: https://nextjs.org/docs/messages/blocking-prerender-runtime
```
Covers all 16 insight-kind errors, across `blocking-route-messages.ts`,
`sync-io-messages.ts`, `dynamic-rendering-utils.ts`, and
`instant-messages.ts`.
Because the dev overlay classified these errors by the `#`-anchored docs
URL, `getBlockingRouteErrorDetails` is updated to match the anchor-less
`Learn more:` URL. Console-message snapshots and the guidance-data
extraction test are updated to the new format. The dev-overlay fix-card
data (`instant-guidance-data.ts`) keeps its per-card links, since those
are the overlay UI rather than the console message.
## Verification
- `pnpm --filter=next types`
- Snapshots regenerated with `jest -u` for the affected suites
<!-- NEXT_JS_LLM -->
469 lines
25 KiB
TypeScript
469 lines
25 KiB
TypeScript
import { isNextDev } from 'e2e-utils'
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import { getPrerenderOutput } from './utils'
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import type { CacheComponentsErrorsContext } from './shared.util'
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export function registerUseCachePrivateTests(
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ctx: CacheComponentsErrorsContext
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) {
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const { next, isTurbopack, isDebugPrerender, prerender } = ctx
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let cliOutputLength: number
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beforeEach(() => {
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cliOutputLength = next.cliOutput.length
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})
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describe('With `use cache: private`', () => {
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describe('in `unstable_cache`', () => {
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if (isNextDev) {
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it('should show a redbox error', async () => {
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const browser = await next.browser(
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'/use-cache-private-in-unstable-cache'
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)
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if (isTurbopack) {
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await expect(browser).toDisplayRedbox(`
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{
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"code": "E1016",
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"description": ""use cache: private" must not be used within \`unstable_cache()\`.",
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"environmentLabel": "Server",
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"label": "Runtime Error",
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"source": "app/use-cache-private-in-unstable-cache/page.tsx (21:38) @ <anonymous>
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> 21 | const getCachedData = unstable_cache(async () => {
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| ^",
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"stack": [
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"<anonymous> app/use-cache-private-in-unstable-cache/page.tsx (21:38)",
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"ComponentWithCachedData app/use-cache-private-in-unstable-cache/page.tsx (16:16)",
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],
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}
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`)
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} else {
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await expect(browser).toDisplayRedbox(`
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{
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"code": "E1016",
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"description": ""use cache: private" must not be used within \`unstable_cache()\`.",
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"environmentLabel": "Server",
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"label": "Runtime Error",
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"source": "app/use-cache-private-in-unstable-cache/page.tsx (21:38) @ eval
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> 21 | const getCachedData = unstable_cache(async () => {
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| ^",
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"stack": [
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"eval app/use-cache-private-in-unstable-cache/page.tsx (21:38)",
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"ComponentWithCachedData app/use-cache-private-in-unstable-cache/page.tsx (16:16)",
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],
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}
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`)
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}
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})
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} else {
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it('should error the build', async () => {
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try {
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await prerender('/use-cache-private-in-unstable-cache')
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} catch {
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// we expect the build to fail
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}
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const output = getPrerenderOutput(
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next.cliOutput.slice(cliOutputLength),
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{ isMinified: !isDebugPrerender }
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)
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if (isDebugPrerender) {
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if (isTurbopack) {
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expect(output).toMatchInlineSnapshot(`
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"Error: "use cache: private" must not be used within \`unstable_cache()\`.
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at <unknown> (app/use-cache-private-in-unstable-cache/page.tsx:21:38)
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at async ComponentWithCachedData (app/use-cache-private-in-unstable-cache/page.tsx:16:16)
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19 | }
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20 |
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> 21 | const getCachedData = unstable_cache(async () => {
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| ^
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22 | 'use cache: private'
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23 |
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24 | return fetch('https://next-data-api-endpoint.vercel.app/api/random').then(
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To debug the issue, start the app in development mode by running \`next dev\`, then open "/use-cache-private-in-unstable-cache" in your browser to investigate the error.
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Error occurred prerendering page "/use-cache-private-in-unstable-cache". Read more: https://nextjs.org/docs/messages/prerender-error
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> Export encountered errors on 1 path:
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/use-cache-private-in-unstable-cache/page: /use-cache-private-in-unstable-cache"
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`)
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} else {
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expect(output).toMatchInlineSnapshot(`
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"Error: "use cache: private" must not be used within \`unstable_cache()\`.
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at <unknown> (webpack:///app/use-cache-private-in-unstable-cache/page.tsx:21:38)
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at async ComponentWithCachedData (webpack:///app/use-cache-private-in-unstable-cache/page.tsx:16:16)
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19 | }
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20 |
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> 21 | const getCachedData = unstable_cache(async () => {
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| ^
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22 | 'use cache: private'
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23 |
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24 | return fetch('https://next-data-api-endpoint.vercel.app/api/random').then(
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To debug the issue, start the app in development mode by running \`next dev\`, then open "/use-cache-private-in-unstable-cache" in your browser to investigate the error.
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Error occurred prerendering page "/use-cache-private-in-unstable-cache". Read more: https://nextjs.org/docs/messages/prerender-error
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> Export encountered errors on 1 path:
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/use-cache-private-in-unstable-cache/page: /use-cache-private-in-unstable-cache"
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`)
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}
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} else {
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if (isTurbopack) {
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expect(output).toMatchInlineSnapshot(`
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"Error: "use cache: private" must not be used within \`unstable_cache()\`.
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at <unknown> (app/use-cache-private-in-unstable-cache/page.tsx:21:38)
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at async g (app/use-cache-private-in-unstable-cache/page.tsx:16:16)
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19 | }
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20 |
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> 21 | const getCachedData = unstable_cache(async () => {
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| ^
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22 | 'use cache: private'
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23 |
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24 | return fetch('https://next-data-api-endpoint.vercel.app/api/random').then(
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To get a more detailed stack trace and pinpoint the issue, try one of the following:
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- Start the app in development mode by running \`next dev\`, then open "/use-cache-private-in-unstable-cache" in your browser to investigate the error.
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- Rerun the production build with \`next build --debug-prerender\` to generate better stack traces.
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Error occurred prerendering page "/use-cache-private-in-unstable-cache". Read more: https://nextjs.org/docs/messages/prerender-error
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Export encountered an error on /use-cache-private-in-unstable-cache/page: /use-cache-private-in-unstable-cache, exiting the build."
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`)
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} else {
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expect(output).toMatchInlineSnapshot(`
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"Error: "use cache: private" must not be used within \`unstable_cache()\`.
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at a (<next-dist-dir>)
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at b (<next-dist-dir>)
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at c (<next-dist-dir>)
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To get a more detailed stack trace and pinpoint the issue, try one of the following:
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- Start the app in development mode by running \`next dev\`, then open "/use-cache-private-in-unstable-cache" in your browser to investigate the error.
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- Rerun the production build with \`next build --debug-prerender\` to generate better stack traces.
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Error occurred prerendering page "/use-cache-private-in-unstable-cache". Read more: https://nextjs.org/docs/messages/prerender-error
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Export encountered an error on /use-cache-private-in-unstable-cache/page: /use-cache-private-in-unstable-cache, exiting the build."
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`)
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}
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}
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})
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}
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})
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describe('in `use cache`', () => {
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if (isNextDev) {
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it('should show a redbox error', async () => {
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const browser = await next.browser('/use-cache-private-in-use-cache')
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await expect(browser).toDisplayRedbox(`
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{
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"code": "E1001",
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"description": ""use cache: private" must not be used within "use cache". It can only be nested inside of another "use cache: private".",
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"environmentLabel": "Cache",
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"label": "Runtime Error",
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"source": "app/use-cache-private-in-use-cache/page.tsx (15:1) @ Private
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> 15 | async function Private() {
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| ^",
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"stack": [
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"Private app/use-cache-private-in-use-cache/page.tsx (15:1)",
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],
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}
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`)
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})
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} else {
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it('should error the build', async () => {
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try {
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await prerender('/use-cache-private-in-use-cache')
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} catch {
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// we expect the build to fail
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}
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const output = getPrerenderOutput(
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next.cliOutput.slice(cliOutputLength),
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{ isMinified: !isDebugPrerender }
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)
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// TODO: Ideally, the error should only be shown once.
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if (isDebugPrerender) {
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if (isTurbopack) {
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expect(output).toMatchInlineSnapshot(`
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"Error: "use cache: private" must not be used within "use cache". It can only be nested inside of another "use cache: private".
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at Private (app/use-cache-private-in-use-cache/page.tsx:15:1)
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13 | }
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14 |
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> 15 | async function Private() {
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| ^
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16 | 'use cache: private'
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17 |
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18 | return <p>Private</p> {
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digest: '<error-digest>'
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}
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To debug the issue, start the app in development mode by running \`next dev\`, then open "/use-cache-private-in-use-cache" in your browser to investigate the error.
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Error occurred prerendering page "/use-cache-private-in-use-cache". Read more: https://nextjs.org/docs/messages/prerender-error
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> Export encountered errors on 1 path:
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/use-cache-private-in-use-cache/page: /use-cache-private-in-use-cache"
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`)
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} else
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expect(output).toMatchInlineSnapshot(`
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"Error: "use cache: private" must not be used within "use cache". It can only be nested inside of another "use cache: private".
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at Private (webpack:///app/use-cache-private-in-use-cache/page.tsx:15:1)
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13 | }
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14 |
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> 15 | async function Private() {
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| ^
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16 | 'use cache: private'
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17 |
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18 | return <p>Private</p> {
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digest: '<error-digest>'
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}
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To debug the issue, start the app in development mode by running \`next dev\`, then open "/use-cache-private-in-use-cache" in your browser to investigate the error.
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Error occurred prerendering page "/use-cache-private-in-use-cache". Read more: https://nextjs.org/docs/messages/prerender-error
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> Export encountered errors on 1 path:
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/use-cache-private-in-use-cache/page: /use-cache-private-in-use-cache"
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`)
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} else {
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if (isTurbopack) {
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expect(output).toMatchInlineSnapshot(`
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"⨯ Error: "use cache: private" must not be used within "use cache". It can only be nested inside of another "use cache: private".
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at <unknown> (app/use-cache-private-in-use-cache/page.tsx:15:1)
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13 | }
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14 |
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> 15 | async function Private() {
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| ^
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16 | 'use cache: private'
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17 |
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18 | return <p>Private</p> {
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digest: '<error-digest>'
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}
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Error: "use cache: private" must not be used within "use cache". It can only be nested inside of another "use cache: private".
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at <unknown> (app/use-cache-private-in-use-cache/page.tsx:15:1)
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13 | }
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14 |
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> 15 | async function Private() {
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| ^
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16 | 'use cache: private'
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17 |
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18 | return <p>Private</p> {
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digest: '<error-digest>'
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}
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To get a more detailed stack trace and pinpoint the issue, try one of the following:
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- Start the app in development mode by running \`next dev\`, then open "/use-cache-private-in-use-cache" in your browser to investigate the error.
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- Rerun the production build with \`next build --debug-prerender\` to generate better stack traces.
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Error occurred prerendering page "/use-cache-private-in-use-cache". Read more: https://nextjs.org/docs/messages/prerender-error
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Export encountered an error on /use-cache-private-in-use-cache/page: /use-cache-private-in-use-cache, exiting the build."
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`)
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} else {
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expect(output).toMatchInlineSnapshot(`
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"⨯ Error: "use cache: private" must not be used within "use cache". It can only be nested inside of another "use cache: private".
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at a (<next-dist-dir>) {
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digest: '<error-digest>'
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}
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Error: "use cache: private" must not be used within "use cache". It can only be nested inside of another "use cache: private".
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at b (<next-dist-dir>) {
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digest: '<error-digest>'
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}
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To get a more detailed stack trace and pinpoint the issue, try one of the following:
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- Start the app in development mode by running \`next dev\`, then open "/use-cache-private-in-use-cache" in your browser to investigate the error.
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- Rerun the production build with \`next build --debug-prerender\` to generate better stack traces.
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Error occurred prerendering page "/use-cache-private-in-use-cache". Read more: https://nextjs.org/docs/messages/prerender-error
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Export encountered an error on /use-cache-private-in-use-cache/page: /use-cache-private-in-use-cache, exiting the build."
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`)
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}
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}
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})
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}
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})
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describe('without Suspense', () => {
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if (isNextDev) {
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it('should show a redbox error', async () => {
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const browser = await next.browser(
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'/use-cache-private-without-suspense'
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)
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await expect(browser).toDisplayCollapsedRedbox(`
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{
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"code": "E1427",
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"description": "Next.js encountered runtime data during prerendering.",
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"environmentLabel": "Server",
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"label": "Blocking Route",
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"source": "app/use-cache-private-without-suspense/page.tsx (15:1) @ Private
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> 15 | async function Private() {
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| ^",
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"stack": [
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"Private app/use-cache-private-without-suspense/page.tsx (15:1)",
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"Page app/use-cache-private-without-suspense/page.tsx (10:7)",
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],
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}
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`)
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})
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} else {
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it('should error the build', async () => {
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try {
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await prerender('/use-cache-private-without-suspense')
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} catch {
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// we expect the build to fail
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}
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const output = getPrerenderOutput(
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next.cliOutput.slice(cliOutputLength),
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{ isMinified: !isDebugPrerender }
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)
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if (isTurbopack) {
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if (isDebugPrerender) {
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expect(output).toMatchInlineSnapshot(`
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"Error: Route "/use-cache-private-without-suspense": Next.js encountered uncached or runtime data during prerendering.
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\`fetch(...)\`, \`cookies()\`, \`headers()\`, \`params\`, \`searchParams\`, or \`connection()\` accessed outside of \`<Suspense>\` prevents the route from being prerendered, blocking the page load and leading to a slower user experience.
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Ways to fix this:
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- [stream] Provide a placeholder with \`<Suspense fallback={...}>\` around the data access
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- [cache] For uncached data (\`fetch\`, database calls): cache the access with \`"use cache"\` (does not apply to \`connection()\`)
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- [block] Set \`export const instant = false\` to allow a blocking route
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Learn more: https://nextjs.org/docs/messages/blocking-prerender-dynamic
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at Private (app/use-cache-private-without-suspense/page.tsx:15:1)
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at Page (app/use-cache-private-without-suspense/page.tsx:10:7)
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13 | }
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14 |
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> 15 | async function Private() {
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| ^
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16 | 'use cache: private'
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17 |
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18 | return <p>Private</p>
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To debug the issue, start the app in development mode by running \`next dev\`, then open "/use-cache-private-without-suspense" in your browser to investigate the error.
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Error occurred prerendering page "/use-cache-private-without-suspense". Read more: https://nextjs.org/docs/messages/prerender-error
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> Export encountered errors on 1 path:
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/use-cache-private-without-suspense/page: /use-cache-private-without-suspense"
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`)
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} else {
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expect(output).toMatchInlineSnapshot(`
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"Error: Route "/use-cache-private-without-suspense": Next.js encountered uncached or runtime data during prerendering.
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\`fetch(...)\`, \`cookies()\`, \`headers()\`, \`params\`, \`searchParams\`, or \`connection()\` accessed outside of \`<Suspense>\` prevents the route from being prerendered, blocking the page load and leading to a slower user experience.
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|
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Ways to fix this:
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- [stream] Provide a placeholder with \`<Suspense fallback={...}>\` around the data access
|
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- [cache] For uncached data (\`fetch\`, database calls): cache the access with \`"use cache"\` (does not apply to \`connection()\`)
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- [block] Set \`export const instant = false\` to allow a blocking route
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Learn more: https://nextjs.org/docs/messages/blocking-prerender-dynamic
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at main (<anonymous>)
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at body (<anonymous>)
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at html (<anonymous>)
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To get a more detailed stack trace and pinpoint the issue, try one of the following:
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- Start the app in development mode by running \`next dev\`, then open "/use-cache-private-without-suspense" in your browser to investigate the error.
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- Rerun the production build with \`next build --debug-prerender\` to generate better stack traces.
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Error occurred prerendering page "/use-cache-private-without-suspense". Read more: https://nextjs.org/docs/messages/prerender-error
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Export encountered an error on /use-cache-private-without-suspense/page: /use-cache-private-without-suspense, exiting the build."
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`)
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}
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} else {
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if (isDebugPrerender) {
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// Webpack does not ignore the stack frame that points into
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// Next.js internals, and is also flaky on resolving the exact
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// location, so we don't assert on the stack frames here.
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expect(output).toInclude(
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`Error: Route "/use-cache-private-without-suspense": Next.js encountered uncached or runtime data during prerendering.
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\`fetch(...)\`, \`cookies()\`, \`headers()\`, \`params\`, \`searchParams\`, or \`connection()\` accessed outside of \`<Suspense>\` prevents the route from being prerendered, blocking the page load and leading to a slower user experience.
|
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|
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Ways to fix this:
|
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- [stream] Provide a placeholder with \`<Suspense fallback={...}>\` around the data access
|
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- [cache] For uncached data (\`fetch\`, database calls): cache the access with \`"use cache"\` (does not apply to \`connection()\`)
|
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- [block] Set \`export const instant = false\` to allow a blocking route
|
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|
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Learn more: https://nextjs.org/docs/messages/blocking-prerender-dynamic`
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)
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} else {
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expect(output).toMatchInlineSnapshot(`
|
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"Error: Route "/use-cache-private-without-suspense": Next.js encountered uncached or runtime data during prerendering.
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|
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\`fetch(...)\`, \`cookies()\`, \`headers()\`, \`params\`, \`searchParams\`, or \`connection()\` accessed outside of \`<Suspense>\` prevents the route from being prerendered, blocking the page load and leading to a slower user experience.
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Ways to fix this:
|
||
- [stream] Provide a placeholder with \`<Suspense fallback={...}>\` around the data access
|
||
- [cache] For uncached data (\`fetch\`, database calls): cache the access with \`"use cache"\` (does not apply to \`connection()\`)
|
||
- [block] Set \`export const instant = false\` to allow a blocking route
|
||
|
||
Learn more: https://nextjs.org/docs/messages/blocking-prerender-dynamic
|
||
at a (<next-dist-dir>)
|
||
at b (<next-dist-dir>)
|
||
at c (<next-dist-dir>)
|
||
at d (<next-dist-dir>)
|
||
at e (<next-dist-dir>)
|
||
at f (<next-dist-dir>)
|
||
at g (<next-dist-dir>)
|
||
at h (<next-dist-dir>)
|
||
at i (<next-dist-dir>)
|
||
at j (<next-dist-dir>)
|
||
at main (<anonymous>)
|
||
at body (<anonymous>)
|
||
at html (<anonymous>)
|
||
at k (<next-dist-dir>)
|
||
at l (<next-dist-dir>)
|
||
at m (<next-dist-dir>)
|
||
at n (<next-dist-dir>)
|
||
at o (<next-dist-dir>)
|
||
at p (<next-dist-dir>)
|
||
at q (<next-dist-dir>)
|
||
at r (<next-dist-dir>)
|
||
at s (<next-dist-dir>)
|
||
at t (<next-dist-dir>)
|
||
at u (<next-dist-dir>)
|
||
To get a more detailed stack trace and pinpoint the issue, try one of the following:
|
||
- Start the app in development mode by running \`next dev\`, then open "/use-cache-private-without-suspense" in your browser to investigate the error.
|
||
- Rerun the production build with \`next build --debug-prerender\` to generate better stack traces.
|
||
Error occurred prerendering page "/use-cache-private-without-suspense". Read more: https://nextjs.org/docs/messages/prerender-error
|
||
Export encountered an error on /use-cache-private-without-suspense/page: /use-cache-private-without-suspense, exiting the build."
|
||
`)
|
||
}
|
||
}
|
||
})
|
||
}
|
||
})
|
||
|
||
describe('with `connection()`', () => {
|
||
if (isNextDev) {
|
||
// TODO(restart-on-cache-miss): This error is written to `workStore.invalidDynamicUsageError`.
|
||
// There's currently a race on whether these show up as
|
||
// - a runtime error (thrown from `renderToHTMLOrFlightImpl`, after the RSC render)
|
||
// - a console error (from inside `spawnDynamicValidationInDev`)
|
||
// - nothing (if the error happens after SSR starts and after the prospective validation render finishes)
|
||
// Ideally, these would always be a runtime error, but some recent timing changes break it.
|
||
it.skip('should show a redbox error', async () => {
|
||
const browser = await next.browser('/use-cache-private-connection')
|
||
|
||
await expect(browser).toDisplayCollapsedRedbox(`
|
||
{
|
||
"description": "Route /use-cache-private-connection used \`connection()\` inside "use cache: private". The \`connection()\` function is used to indicate the subsequent code must only run when there is an actual navigation request, but caches must be able to be produced before a navigation request, so this function is not allowed in this scope. See more info here: https://nextjs.org/docs/messages/next-request-in-use-cache",
|
||
"environmentLabel": null,
|
||
"label": "Runtime Error",
|
||
"source": "app/use-cache-private-connection/page.tsx (25:21) @ Private
|
||
> 25 | await connection()
|
||
| ^",
|
||
"stack": [
|
||
"Private app/use-cache-private-connection/page.tsx (25:21)",
|
||
],
|
||
}
|
||
`)
|
||
})
|
||
} else {
|
||
// TODO: With prefetch sentinels this should yield a build error.
|
||
it('should not fail the build and show no runtime error (caught in userland)', async () => {
|
||
await prerender('/use-cache-private-connection')
|
||
await next.start({ skipBuild: true })
|
||
|
||
const browser = await next.browser('/use-cache-private-connection', {
|
||
pushErrorAsConsoleLog: true,
|
||
})
|
||
|
||
expect(await browser.elementById('private').text()).toBe('Private')
|
||
|
||
expect(await browser.log()).not.toContainEqual(
|
||
expect.objectContaining({ source: 'error' })
|
||
)
|
||
|
||
expect(next.cliOutput.slice(cliOutputLength)).not.toInclude('Error')
|
||
})
|
||
}
|
||
})
|
||
})
|
||
}
|