mirror of
https://github.com/hanzoai/next.js.git
synced 2026-09-24 17:00:51 +00:00
Andrew ClarkandGitHub
3de2d1a213
Removes the "allow-runtime" prefetch config, and turns its behavior on implicitly wherever Partial Prefetching is enabled. The original motivation for "allow-runtime" was to give apps more control over server costs triggered by prefetches. Until a route explicitly opts in, prefetches would only be served from the CDN, not from the server. The problem, though, was it was very confusing to know when to add or remove this configuration. The incentive for many apps was to add it everywhere, with no clear signal for when to remove it. Our updated thinking is that Partial Prefetching itself already provides sufficient protection against runaway prefetching costs: per-link prefetches only happen on Link components that explicitly opt in with the prefetch prop. The optimizations landed earlier in this stack also make allow-runtime less necessary: on pages where all the content is statically renderable, prefetches are served from the static cache and no runtime request is ever issued; only a page that accesses non-static data is prefetched at runtime. The upshot of this decision is that runtime versus static becomes an internal optimization; the same content gets prefetched regardless of whether or how Next.js is able to optimize it.
607 lines
27 KiB
TypeScript
607 lines
27 KiB
TypeScript
import { nextTestSetup, type Playwright } from 'e2e-utils'
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import {
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expectBuildValidationSkipped,
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expectNoBuildValidationErrors,
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extractBuildValidationError,
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waitForValidation,
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} from 'e2e-utils/instant-validation'
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import { retry, waitForNoErrorToast } from '../../../lib/next-test-utils'
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describe('instant validation - parallel slot configs', () => {
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const { next, skipped, isNextDev, isNextStart, isTurbopack } = nextTestSetup({
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files: __dirname,
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skipStart: true,
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skipDeployment: true,
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env: {
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NEXT_TEST_LOG_VALIDATION: '1',
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},
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})
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if (skipped) return
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if (isNextStart && !isTurbopack) {
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// TODO(instant-validation-build): snapshot tests for webpack
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it.skip('TODO: snapshot tests for webpack', () => {})
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return
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}
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if (isNextStart) {
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beforeAll(async () => {
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await next.build({ args: ['--experimental-build-mode', 'compile'] })
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})
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afterEach(async () => {
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await next.stop()
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})
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} else {
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beforeAll(async () => {
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await next.start()
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})
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}
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let currentCliOutputIndex = 0
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beforeEach(() => {
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currentCliOutputIndex = next.cliOutput.length
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})
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function getCliOutputSinceMark(): string {
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if (next.cliOutput.length < currentCliOutputIndex) {
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currentCliOutputIndex = 0
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}
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return next.cliOutput.slice(currentCliOutputIndex)
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}
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const prerender = async (pathname: string) => {
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const args = [
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'--experimental-build-mode',
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'generate',
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'--debug-build-paths',
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`app${pathname}/page.tsx`,
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]
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return await next.build({ args })
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}
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const NO_VALIDATION_ERRORS_WAIT: Parameters<typeof waitForNoErrorToast>[1] = {
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waitInMs: 500,
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}
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async function expectNoDevValidationErrors(
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browser: Playwright,
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url: string
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): Promise<void> {
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await waitForValidation(url, getCliOutputSinceMark)
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await waitForNoErrorToast(browser, NO_VALIDATION_ERRORS_WAIT)
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}
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const cases = isNextDev
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? [
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{ isClientNav: false, description: 'dev - initial load' },
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{ isClientNav: true, description: 'dev - client navigation' },
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]
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: [{ isClientNav: false, description: 'build' }]
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describe.each(cases)('$description', ({ isClientNav }) => {
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async function navigateTo(href: string) {
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if (!isClientNav) {
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if (isNextStart) {
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await next.start()
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}
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const browser = await next.browser(href)
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await browser.elementByCss('main')
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return browser
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}
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const browser = await next.browser('/suspense-in-root')
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await browser
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.elementByCss(`[data-link-type="soft"][href="${href}"]`)
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.click()
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await retry(
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async () => {
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expect(await browser.url()).toContain(href)
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},
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undefined,
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100,
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'wait for url to change'
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)
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return browser
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}
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describe('config on slot page', () => {
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it('catches unsuspended dynamic content in children when config is on slot page', async () => {
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if (isNextDev) {
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const browser = await navigateTo(
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'/suspense-in-root/parallel/slot-config-only'
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)
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await expect(browser).toDisplayCollapsedRedbox(`
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{
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"cause": [
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{
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"label": "Caused by: Instant Validation",
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"source": "app/suspense-in-root/parallel/slot-config-only/@slot/page.tsx (1:24) @ instant
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> 1 | export const instant = { level: 'experimental-error' }
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| ^",
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"stack": [
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"instant app/suspense-in-root/parallel/slot-config-only/@slot/page.tsx (1:24)",
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"Set.forEach <anonymous>",
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],
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},
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],
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"code": "E1430",
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"description": "Next.js encountered runtime data during a navigation.",
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"environmentLabel": "Server",
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"label": "Instant",
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"source": "app/suspense-in-root/parallel/slot-config-only/page.tsx (4:16) @ ChildrenPage
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> 4 | await cookies()
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| ^",
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"stack": [
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"ChildrenPage app/suspense-in-root/parallel/slot-config-only/page.tsx (4:16)",
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],
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}
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`)
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} else {
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const result = await prerender(
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'/suspense-in-root/parallel/slot-config-only'
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)
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expect(extractBuildValidationError(result.cliOutput))
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.toMatchInlineSnapshot(`
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"Error: Route "/suspense-in-root/parallel/slot-config-only": Next.js encountered runtime data during prerendering or a navigation.
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\`cookies()\`, \`headers()\`, \`params\`, or \`searchParams\` accessed outside of \`<Suspense>\` prevents the route from being prerendered or the navigation from being instant, 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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- [block] Set \`export const instant = false\` to allow a blocking route
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Learn more: https://nextjs.org/docs/messages/blocking-prerender-runtime
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at body (<anonymous>)
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at html (<anonymous>)
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at a (<anonymous>)
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Build-time instant validation failed for route "/suspense-in-root/parallel/slot-config-only".
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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 "/suspense-in-root/parallel/slot-config-only" 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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Stopping prerender due to instant validation errors."
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`)
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expect(result.exitCode).toBe(1)
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}
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})
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it('catches unsuspended dynamic content in children when config is on slot layout', async () => {
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if (isNextDev) {
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const browser = await navigateTo(
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'/suspense-in-root/parallel/slot-layout-config'
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)
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await expect(browser).toDisplayCollapsedRedbox(`
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{
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"cause": [
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{
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"label": "Caused by: Instant Validation",
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"source": "app/suspense-in-root/parallel/slot-layout-config/@slot/layout.tsx (3:24) @ instant
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> 3 | export const instant = { level: 'experimental-error' }
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| ^",
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"stack": [
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"instant app/suspense-in-root/parallel/slot-layout-config/@slot/layout.tsx (3:24)",
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"Set.forEach <anonymous>",
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],
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},
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],
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"code": "E1430",
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"description": "Next.js encountered runtime data during a navigation.",
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"environmentLabel": "Server",
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"label": "Instant",
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"source": "app/suspense-in-root/parallel/slot-layout-config/page.tsx (4:16) @ ChildrenPage
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> 4 | await cookies()
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| ^",
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"stack": [
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"ChildrenPage app/suspense-in-root/parallel/slot-layout-config/page.tsx (4:16)",
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],
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}
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`)
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} else {
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const result = await prerender(
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'/suspense-in-root/parallel/slot-layout-config'
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)
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expect(extractBuildValidationError(result.cliOutput))
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.toMatchInlineSnapshot(`
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"Error: Route "/suspense-in-root/parallel/slot-layout-config": Next.js encountered runtime data during prerendering or a navigation.
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\`cookies()\`, \`headers()\`, \`params\`, or \`searchParams\` accessed outside of \`<Suspense>\` prevents the route from being prerendered or the navigation from being instant, 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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- [block] Set \`export const instant = false\` to allow a blocking route
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Learn more: https://nextjs.org/docs/messages/blocking-prerender-runtime
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at body (<anonymous>)
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at html (<anonymous>)
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at a (<anonymous>)
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Build-time instant validation failed for route "/suspense-in-root/parallel/slot-layout-config".
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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 "/suspense-in-root/parallel/slot-layout-config" 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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Stopping prerender due to instant validation errors."
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`)
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expect(result.exitCode).toBe(1)
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}
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})
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it('allows unsuspended runtime content in children when runtime config is on slot page', async () => {
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// Shell validation uses the runtime shell selected by the @slot branch,
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// so the unsuspended cookies() call in children is allowed here. If this
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// test validates a non-shell prefetch again, @slot's prefetch config
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// must not apply to the sibling children branch, and its cookies() call
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// should be reported as an instant validation violation.
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if (isNextDev) {
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const browser = await navigateTo(
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'/suspense-in-root/parallel/slot-runtime-config'
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)
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await expectNoDevValidationErrors(browser, await browser.url())
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} else {
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const result = await prerender(
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'/suspense-in-root/parallel/slot-runtime-config'
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)
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expectNoBuildValidationErrors(result)
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}
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})
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})
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describe('config on children with slot', () => {
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it('catches unsuspended dynamic content in slot when config is on children page', async () => {
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if (isNextDev) {
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const browser = await navigateTo(
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'/suspense-in-root/parallel/children-config-with-slot'
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)
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await expect(browser).toDisplayCollapsedRedbox(`
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{
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"cause": [
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{
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"label": "Caused by: Instant Validation",
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"source": "app/suspense-in-root/parallel/children-config-with-slot/page.tsx (1:24) @ instant
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> 1 | export const instant = { level: 'experimental-error' }
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| ^",
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"stack": [
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"instant app/suspense-in-root/parallel/children-config-with-slot/page.tsx (1:24)",
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"Set.forEach <anonymous>",
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],
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},
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],
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"code": "E1430",
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"description": "Next.js encountered runtime data during a navigation.",
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"environmentLabel": "Server",
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"label": "Instant",
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"source": "app/suspense-in-root/parallel/children-config-with-slot/@slot/page.tsx (4:16) @ SlotPage
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> 4 | await cookies()
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| ^",
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"stack": [
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"SlotPage app/suspense-in-root/parallel/children-config-with-slot/@slot/page.tsx (4:16)",
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],
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}
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`)
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} else {
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const result = await prerender(
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'/suspense-in-root/parallel/children-config-with-slot'
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)
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expect(extractBuildValidationError(result.cliOutput))
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.toMatchInlineSnapshot(`
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"Error: Route "/suspense-in-root/parallel/children-config-with-slot": Next.js encountered runtime data during prerendering or a navigation.
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\`cookies()\`, \`headers()\`, \`params\`, or \`searchParams\` accessed outside of \`<Suspense>\` prevents the route from being prerendered or the navigation from being instant, 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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- [block] Set \`export const instant = false\` to allow a blocking route
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Learn more: https://nextjs.org/docs/messages/blocking-prerender-runtime
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at div (<anonymous>)
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at body (<anonymous>)
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at html (<anonymous>)
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at a (<anonymous>)
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Build-time instant validation failed for route "/suspense-in-root/parallel/children-config-with-slot".
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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 "/suspense-in-root/parallel/children-config-with-slot" 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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Stopping prerender due to instant validation errors."
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`)
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expect(result.exitCode).toBe(1)
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}
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})
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it('catches unsuspended dynamic content in both slots when config is on fork-point layout', async () => {
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if (isNextDev) {
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const browser = await navigateTo(
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'/suspense-in-root/parallel/fork-layout-config-with-slot'
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)
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await expect(browser).toDisplayCollapsedRedbox(`
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[
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{
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"cause": [
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{
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"label": "Caused by: Instant Validation",
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"source": "app/suspense-in-root/parallel/fork-layout-config-with-slot/layout.tsx (3:24) @ instant
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> 3 | export const instant = { level: 'experimental-error' }
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| ^",
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"stack": [
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"instant app/suspense-in-root/parallel/fork-layout-config-with-slot/layout.tsx (3:24)",
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"Set.forEach <anonymous>",
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],
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},
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],
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"code": "E1430",
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"description": "Next.js encountered runtime data during a navigation.",
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"environmentLabel": "Server",
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"label": "Instant",
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"source": "app/suspense-in-root/parallel/fork-layout-config-with-slot/@slot/page.tsx (4:16) @ SlotPage
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> 4 | await cookies()
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| ^",
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"stack": [
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"SlotPage app/suspense-in-root/parallel/fork-layout-config-with-slot/@slot/page.tsx (4:16)",
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],
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},
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{
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"cause": [
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{
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"label": "Caused by: Instant Validation",
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"source": "app/suspense-in-root/parallel/fork-layout-config-with-slot/layout.tsx (3:24) @ instant
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> 3 | export const instant = { level: 'experimental-error' }
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| ^",
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"stack": [
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"instant app/suspense-in-root/parallel/fork-layout-config-with-slot/layout.tsx (3:24)",
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"Set.forEach <anonymous>",
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],
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},
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],
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"code": "E1430",
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"description": "Next.js encountered runtime data during a navigation.",
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"environmentLabel": "Server",
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"label": "Instant",
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"source": "app/suspense-in-root/parallel/fork-layout-config-with-slot/page.tsx (4:16) @ ChildrenPage
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> 4 | await cookies()
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| ^",
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"stack": [
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"ChildrenPage app/suspense-in-root/parallel/fork-layout-config-with-slot/page.tsx (4:16)",
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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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const result = await prerender(
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'/suspense-in-root/parallel/fork-layout-config-with-slot'
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)
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expect(extractBuildValidationError(result.cliOutput))
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.toMatchInlineSnapshot(`
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"Error: Route "/suspense-in-root/parallel/fork-layout-config-with-slot": Next.js encountered runtime data during prerendering or a navigation.
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\`cookies()\`, \`headers()\`, \`params\`, or \`searchParams\` accessed outside of \`<Suspense>\` prevents the route from being prerendered or the navigation from being instant, 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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|
- [block] Set \`export const instant = false\` to allow a blocking route
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|
|
Learn more: https://nextjs.org/docs/messages/blocking-prerender-runtime
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at div (<anonymous>)
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at body (<anonymous>)
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at html (<anonymous>)
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at a (<anonymous>)
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Error: Route "/suspense-in-root/parallel/fork-layout-config-with-slot": Next.js encountered runtime data during prerendering or a navigation.
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\`cookies()\`, \`headers()\`, \`params\`, or \`searchParams\` accessed outside of \`<Suspense>\` prevents the route from being prerendered or the navigation from being instant, leading to a slower user experience.
|
|
|
|
Ways to fix this:
|
|
- [stream] Provide a placeholder with \`<Suspense fallback={...}>\` around the data access
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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-runtime
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at body (<anonymous>)
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at html (<anonymous>)
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at b (<anonymous>)
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Build-time instant validation failed for route "/suspense-in-root/parallel/fork-layout-config-with-slot".
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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 "/suspense-in-root/parallel/fork-layout-config-with-slot" 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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Stopping prerender due to instant validation errors."
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`)
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expect(result.exitCode).toBe(1)
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}
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})
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})
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describe('valid parallel slot configs', () => {
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it('valid - config on both children and slot pages', async () => {
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if (isNextDev) {
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const browser = await navigateTo(
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'/suspense-in-root/parallel/both-configs'
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)
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await expectNoDevValidationErrors(browser, await browser.url())
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} else {
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const result = await prerender(
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'/suspense-in-root/parallel/both-configs'
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)
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expectNoBuildValidationErrors(result)
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}
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})
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it('valid - config on slot, children dynamic content inside Suspense', async () => {
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if (isNextDev) {
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const browser = await navigateTo(
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'/suspense-in-root/parallel/slot-config-children-suspended'
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)
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await expectNoDevValidationErrors(browser, await browser.url())
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} else {
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const result = await prerender(
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'/suspense-in-root/parallel/slot-config-children-suspended'
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)
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expectNoBuildValidationErrors(result)
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}
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})
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})
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describe('conditional slot rendering', () => {
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it('valid - both slots render, no cookies', async () => {
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const href =
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'/suspense-in-root/parallel/conditional-breadcrumbs/show-both/unblocked'
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if (isNextDev) {
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const browser = await navigateTo(href)
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await expectNoDevValidationErrors(browser, await browser.url())
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} else {
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const result = await prerender(href)
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expectNoBuildValidationErrors(result)
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}
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})
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|
|
it('valid - only configured children slot renders, no cookies', async () => {
|
|
const href =
|
|
'/suspense-in-root/parallel/conditional-breadcrumbs/show-only-children/unblocked'
|
|
if (isNextDev) {
|
|
const browser = await navigateTo(href)
|
|
await expectNoDevValidationErrors(browser, await browser.url())
|
|
} else {
|
|
const result = await prerender(href)
|
|
expectNoBuildValidationErrors(result)
|
|
}
|
|
})
|
|
|
|
it('valid - only configured children slot renders, breadcrumbs blocked', async () => {
|
|
const href =
|
|
'/suspense-in-root/parallel/conditional-breadcrumbs/show-only-children/blocked'
|
|
if (isNextDev) {
|
|
const browser = await navigateTo(href)
|
|
await expectNoDevValidationErrors(browser, await browser.url())
|
|
} else {
|
|
const result = await prerender(href)
|
|
expectNoBuildValidationErrors(result)
|
|
}
|
|
})
|
|
|
|
it('errors when both slots render and breadcrumbs calls cookies', async () => {
|
|
const href =
|
|
'/suspense-in-root/parallel/conditional-breadcrumbs/show-both/blocked'
|
|
if (isNextDev) {
|
|
const browser = await navigateTo(href)
|
|
await expect(browser).toDisplayCollapsedRedbox(`
|
|
{
|
|
"cause": [
|
|
{
|
|
"label": "Caused by: Instant Validation",
|
|
"source": "app/suspense-in-root/parallel/conditional-breadcrumbs/show-both/blocked/page.tsx (1:24) @ instant
|
|
> 1 | export const instant = { level: 'experimental-error' }
|
|
| ^",
|
|
"stack": [
|
|
"instant app/suspense-in-root/parallel/conditional-breadcrumbs/show-both/blocked/page.tsx (1:24)",
|
|
"Set.forEach <anonymous>",
|
|
],
|
|
},
|
|
],
|
|
"code": "E1430",
|
|
"description": "Next.js encountered runtime data during a navigation.",
|
|
"environmentLabel": "Server",
|
|
"label": "Instant",
|
|
"source": "app/suspense-in-root/parallel/conditional-breadcrumbs/show-both/@breadcrumbs/blocked/page.tsx (3:16) @ BreadcrumbsPage
|
|
> 3 | await cookies()
|
|
| ^",
|
|
"stack": [
|
|
"BreadcrumbsPage app/suspense-in-root/parallel/conditional-breadcrumbs/show-both/@breadcrumbs/blocked/page.tsx (3:16)",
|
|
],
|
|
}
|
|
`)
|
|
} else {
|
|
const result = await prerender(href)
|
|
expect(extractBuildValidationError(result.cliOutput))
|
|
.toMatchInlineSnapshot(`
|
|
"Error: Route "/suspense-in-root/parallel/conditional-breadcrumbs/show-both/blocked": Next.js encountered runtime data during prerendering or a navigation.
|
|
|
|
\`cookies()\`, \`headers()\`, \`params\`, or \`searchParams\` accessed outside of \`<Suspense>\` prevents the route from being prerendered or the navigation from being instant, leading to a slower user experience.
|
|
|
|
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
|
|
at div (<anonymous>)
|
|
at main (<anonymous>)
|
|
at body (<anonymous>)
|
|
at html (<anonymous>)
|
|
at a (<anonymous>)
|
|
Build-time instant validation failed for route "/suspense-in-root/parallel/conditional-breadcrumbs/show-both/blocked".
|
|
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 "/suspense-in-root/parallel/conditional-breadcrumbs/show-both/blocked" in your browser to investigate the error.
|
|
- Rerun the production build with \`next build --debug-prerender\` to generate better stack traces.
|
|
Stopping prerender due to instant validation errors."
|
|
`)
|
|
expect(result.exitCode).toBe(1)
|
|
}
|
|
})
|
|
|
|
it('errors when configured children slot is hidden, no cookies', async () => {
|
|
const href =
|
|
'/suspense-in-root/parallel/conditional-breadcrumbs/show-only-breadcrumbs/unblocked'
|
|
if (isNextDev) {
|
|
const browser = await navigateTo(href)
|
|
await expect(browser).toDisplayCollapsedRedbox(`
|
|
{
|
|
"code": "E1286",
|
|
"description": "Next.js could not validate that a segment in your UI has instant navigation.",
|
|
"environmentLabel": "Server",
|
|
"label": "Instant",
|
|
"source": "/suspense-in-root/parallel/conditional-breadcrumbs/show-only-breadcrumbs/unblocked
|
|
│
|
|
│ ├─ suspense-in-root/
|
|
│ │ ├─ parallel/
|
|
│ │ │ ├─ conditional-breadcrumbs/
|
|
│ │ │ │ ├─ show-only-breadcrumbs/
|
|
│ │ │ │ │ ├─ (group)/
|
|
│ │ │ │ │ │ ├─ unblocked/
|
|
│ └─ page.tsx ← dropped from rendering
|
|
│",
|
|
"stack": [],
|
|
}
|
|
`)
|
|
} else {
|
|
// The route group workaround only fires in dev mode; build-time
|
|
// pattern matching doesn't resolve through (group)/ so the
|
|
// route is skipped entirely (no validation markers emitted).
|
|
const result = await prerender(href)
|
|
expectBuildValidationSkipped(result)
|
|
}
|
|
})
|
|
|
|
it('errors when configured children slot is hidden, breadcrumbs blocked', async () => {
|
|
const href =
|
|
'/suspense-in-root/parallel/conditional-breadcrumbs/show-only-breadcrumbs/blocked'
|
|
if (isNextDev) {
|
|
const browser = await navigateTo(href)
|
|
await expect(browser).toDisplayCollapsedRedbox(`
|
|
{
|
|
"cause": [
|
|
{
|
|
"label": "Caused by: Instant Validation",
|
|
"source": "app/suspense-in-root/parallel/conditional-breadcrumbs/show-only-breadcrumbs/(group)/blocked/page.tsx (1:24) @ instant
|
|
> 1 | export const instant = { level: 'experimental-error' }
|
|
| ^",
|
|
"stack": [
|
|
"instant app/suspense-in-root/parallel/conditional-breadcrumbs/show-only-breadcrumbs/(group)/blocked/page.tsx (1:24)",
|
|
"Set.forEach <anonymous>",
|
|
],
|
|
},
|
|
],
|
|
"code": "E1430",
|
|
"description": "Next.js encountered runtime data during a navigation.",
|
|
"environmentLabel": "Server",
|
|
"label": "Instant",
|
|
"source": "app/suspense-in-root/parallel/conditional-breadcrumbs/show-only-breadcrumbs/@breadcrumbs/blocked/page.tsx (3:16) @ BreadcrumbsPage
|
|
> 3 | await cookies()
|
|
| ^",
|
|
"stack": [
|
|
"BreadcrumbsPage app/suspense-in-root/parallel/conditional-breadcrumbs/show-only-breadcrumbs/@breadcrumbs/blocked/page.tsx (3:16)",
|
|
],
|
|
}
|
|
`)
|
|
} else {
|
|
// The route group workaround only fires in dev mode; build-time
|
|
// pattern matching doesn't resolve through (group)/ so the
|
|
// route is skipped entirely (no validation markers emitted).
|
|
const result = await prerender(href)
|
|
expectBuildValidationSkipped(result)
|
|
}
|
|
})
|
|
})
|
|
})
|
|
})
|