When `router.refresh` or a server action creates a new `CacheNode` tree,
we were erroneously not copying over the `loading` segment in the new
tree. This would cause the subtree to be remounted as the loading
segment switched from having a Suspense boundary to not having one.
Fixes#66029Fixes#66499
This removes the previous `server/future` directory and moves everything
into the `server` or `server/lib` directories. This is aimed to start to
flatten the server application structure.
### What?
* order of CSS between layout and page
* order of CSS between page and next/dynamic
### Why?
### How?
* overrides webpack CSS chunk loading to use react CSS loading to allow
them to share the order
This takes the `layerAssets` property from the previous PR and actually
renders it, replacing the previous style handling. This ensures that
when multiple page segments are rendered on screen, all of their
associated CSS files are loaded. The existing `findHeadInCache` method
only ever returns a single head node, which means it’d miss stylesheets.
Fixes#59308Fixes#63465
This adds details for every ISR cache request if the page being
requested supports PPR. If it does, it'll attempt to load the
`.prefetch.rsc` payload instead of the `.rsc` payload. This corrects a
bug that was present in deployed environments.
This additionally refactors the `isAppPPREnabled` out of most of the
application, as it's only used to determine if we should add to the
`prefetchDataRoute` fields in the `prerender-manifest.json`. To support
loading the prefetch file or not, we pass the `isRoutePPREnabled`
through with the cache get/set operations instead.
x-slack-ref:
https://vercel.slack.com/archives/C075MSFK9ML/p1717094328986429
In #60645, dynamic access tracking was refactored but we erroneously
stopped tracking dynamic access in route handlers. Request proxying, as
well as tracking segment level configs (such as `export const dynamic =
'force-dynamic'`), were only enabled during static generation. This was
an unintended breaking change that consequently caused dynamic access to
not properly bail from data cache in various circumstances.
This adds some more rigorous testing for route handlers, as this seems
to be a fairly large gap in our fetch cache testing currently.
This PR is easiest to review with [whitespace
disabled](https://github.com/vercel/next.js/pull/66446/files?w=1).
### What
Change the metadataBase missing warning for all cases to only warn in
standalone mode or the non-vercel deployment.
### Why
In vercel deployments, previous concern was that you might not discover
you missed that metadataBase when you deploy. But now we have sth
fallback on production deployments. So we only need to warn in
non-vercel deployment.
Standalone is usually for self-hoist, we always warn users to set the
`metadataBase` to make sure the domain can be properly resolved.
[x-ref](https://vercel.slack.com/archives/C03S8ED1DKM/p1716926825853389?thread_ts=1716923373.484329&cid=C03S8ED1DKM)
When the router encounters a `stale` cache entry, it clears the `rsc`
data so that it can be fetched in render. All navigations (even just for
hash fragments) flow through the navigation reducer, which has logic to
discard any existing cache entries when the cache is stale.
This bug has become more obvious after removing the default 30s cache,
which would previously have masked it.
This updates the existing handling that clears flight data to not do so
if only the hash changes as there would be no server changes in this
case.
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Transient/recoverable errors can cause page(s) to fail. When building an
app with a lot of static pages, a single page failing to build can be
frustrating, especially if it it'll pass on a retry. This adds an
experimental `staticPageGenerationTimeout` property that can be used to
configure how many times Next.js attempts to build a particular page
before giving up.
I recommend reviewing this PR [without
whitespace](https://github.com/vercel/next.js/pull/66393/files?w=1)
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This modifies the patched fetch implementation to better handle when
called within an `unstable_cache` callback. In these callbacks, it
should not throw an error related to dynamic access.
This replaces the verbose `trackDynamicFetch` instead with
`markCurrentScopeAsDynamic` which already has support for checking if
inside an unstable cache context. It also has been adjusted to be a
no-op when `export const dynamic = "force-static"`, further simplifying
the code within the patch fetch implementation.
### What
Use `next-flight-loader` to transform the client components into client
reference in middleware and instrumentation.
Add related required webpack aliases, such as alias for
`react-server-dom-webpack`
### Why
issue reported in
https://github.com/vercel/next.js/pull/65424#issuecomment-2128902585
### What?
Because `createMultiHtmlMatcher` does not use `await` keyword internally
and is not an async function, all `await` in front of the match function
returned from `createMultiHtmlMatcher` was removed in
`test/e2e/app-dir/metadata/metadata.test.ts`.
The JSDoc for `createMultiHtmlMatcher` was also modified.
Co-authored-by: Jiachi Liu <inbox@huozhi.im>
This allows us to set breakpoints and debug e2e tests without
encountering a timeout after 60 seconds. For example, using:
```
NEXT_E2E_TEST_TIMEOUT=1000000 NODE_OPTIONS=--inspect-brk pnpm test-dev test/e2e/app-dir/metadata/metadata.test.ts
```
Notably, this change also affects the turbopack dev tests in the CI,
where `NEXT_E2E_TEST_TIMEOUT` is currently set to 240 seconds. Since the
same env variable is also used for `jest.setTimeout()`, a test timeout
will now most likely occur due to jest timing out, and not a specific
playwright check (i.e. `waitForElementByCss` or `waitForCondition`)
timing out. This sounds acceptable to me.
Co-authored-by: JJ Kasper <jj@jjsweb.site>
Using the hostname `::` enables dual-stack support. This prevents
`ECONNREFUSED` errors when running tests locally, and `localhost` being
resolved to `::1` (IPv6) instead of `127.0.0.1` (IPv4).
During integration testing, previously, calls to `next build` could rely
on the project (the Next.js project) level ESLint configuration. In
order to correct this, a new `lint` option was added to `nextBuild` that
can be passed to enabled linting. If this is `false` or `undefined`, a
`--no-lint` argument will be passed to `next build` to prevent it from
running.
Old logic from the pages router was previously being hit during
development. This was more apparent when PPR was enabled as it was
mixing dynamic + static rendering in development which propagated to
errors. This change ensures that requests that are made with `RSC: 1`
are not marked as `/_next/data` URL's, and don't use the same logic
paths.
Previously it was a bit confusing because we used the variable
`isDataReq` in a few places that made it hard to tell what it was
referring to. In this case, the `isDataReq` is actually only used by the
pages router. This renames the `isDataReq` to `isNextDataRequest` to
make it clearer, as well as refactors to ensure that it's not used in
the paths for app routes.
Also to better represent the rendering modes the `supportsDynamicHTML`
variable was renamed to `supportsDynamicResponse`.
Fixes#66241
Revert the revert in #66049
It was erroring in pages api with importing `react-dom/server` as this
is disallowed in app but shouldn't be in pages. It's caused by we're
validating middleware layer as server components but edge pages api is
still bundled in the same layer, where we shouldn't apply the check.
* Separate the api in api layers, and while handling middleware
warnings, checking api layer as well
* No need to check layers while handling externals in edge compiler
* Found a bug that we shouldn't check if `config.transpilePackages` is
defined then we enable `externalDir`, removed that condition. It fails
the telemetry tests case build with code change from this PR.
Add more tests for pages dir and middleware
| | `react` condition | `react-dom/server` condition |
| ---- | ---- | ---- |
| middleware (edge) | react-server | not allowed, failed with dev/build
checks |
| pages/api edge | default condition | default condition |
| pages/api node | default condition | default condition |
This reverts commit
637033c410.
What wasn't clear originally is that we require that required packages
have their `package.json` resolvable. So either they don't have an
`exports` field, or their `package.json` is listed in the `exports`
field. The React beta types didn't have `package.json` entry in
`exports` so we accidentally thought they weren't installed.
I published [`19.0.0-beta.2` that has `package.json` in
`exports`](13879ee571 (diff-81cc573aa0c2bd0e13f9463499747741704aabccd7474f544db710befd7bcfc4R44))
so we can restore the old behavior. It's still questionable IMO to do
all that I/O work just for a nicer error message that may contain
false-positive but that's for another time.
This PR changes the `getWaitUntil` logic to always check if the platform
provided a request context with a `waitUntil` implementation (via [the
`@next/request-context`
symbol](05e6b82576/packages/next/src/server/after/wait-until-builtin.ts (L12)))
, regardless of minimalMode or runtime.
Previously, we wouldn't check the context at all unless `minimalMode`
was set, and defaulted `waitUntil` to a noop otherwise. This would make
integration more difficult for providers who don't use `minimalMode`,
because they'd have no way to inject their `waitUntil` implementation.
Ensures that app routes (like the `favicon.ico` added in the test case
in this PR which is represented as an app route) do not have a prefetch
RSC also attached.
## Background
Previously we introduced automatic caching for `fetch` based on certain
heuristics that were a bit tricky to grasp all scenarios. The scenarios
we would automatically cache were no dynamic data access before the
fetch call e.g. `headers()` or `cookies()`, the fetch call is inside of
a dynamic page e.g. `POST` method or `export const revalidate = 0` page
and the fetch is a non-`GET` request or has `Authorization` or `Cookie`
headers, or the fetch had `cache: 'no-store' | 'no-cache'` or
`revalidate: 0`.
## New Behavior
By default fetches will no longer automatically be cached. Instead they
need to be opted-in to caching via `export const fetchCache =
'default-cache' | 'force-cache',` `next: { revalidate: false or value >
0 }` or `cache: 'force-cache' | 'default-cache'`.
When the fetch call is automatically skipping the cache it won't impact
the page level ISR cacheability although if a fetch call manually
specifies `cache: 'no-store'` or `revalidate: 0` it will still bail from
the page being statically generated as it was before.
To achieve the previous behavior of automatic fetch caching all that
needs to be added is `export const fetchCache = 'default-cache'` in the
root layout(s) of your project.
Follow-up to https://github.com/vercel/next.js/pull/65825 this ensures
we don't skip the static optimization specifically for metadata routes
as this most often should be static as they aren't dynamic content and
are requested very frequently.
This configures the default client router cache `staleTime.dynamic`
value to be `0`.
This means that:
- Navigating between pages will always fire off a network request to get
RSC data for the page segment, rather than restoring from router cache
- Loading states will remain cached for 5 minutes (or whatever
`config.experimental.staleTimes.static` is set to)
- Shared layout data will continue to remain cached due to [partial
rendering](https://nextjs.org/docs/app/building-your-application/routing/linking-and-navigating#4-partial-rendering)
- Back/forward behavior will still restore from cache to ensure the
browser can restore scroll position.
It's possible to opt-out of this, and into the previous behavior, by
setting the
[`staleTimes`](https://nextjs.org/docs/app/api-reference/next-config-js/staleTimes)
config in `next.config.js`:
```js
/** @type {import('next').NextConfig} */
const nextConfig = {
experimental: {
staleTimes: {
dynamic: 30
},
},
}
module.exports = nextConfig
```
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This reverts the below changes to avoid a breaking change in pages with
importing `react-dom/server` as this is disallowed in `app` but
shouldn't be in `pages`.
Revert "Bundle the installed react for middleware (#65811)"
Revert "Error in build for middleware when import client-only (#65792)"
This reverts commit fdd8f0c65f.
This reverts commit 082072ca95.
x-ref: [slack
thread](https://vercel.slack.com/archives/C03S8ED1DKM/p1716305493514869)
Noticed while testing turbopack version of tests that we weren't loading
the correct swc binary since this path wasn't absolute and was just the
relative path in `node_modules`.
---------
Co-authored-by: Zack Tanner <1939140+ztanner@users.noreply.github.com>
Since, https://github.com/vercel/next.js/pull/65830, I've been seeing
weird flakes from
`test/e2e/app-dir/app-invalid-revalidate/app-invalid-revalidate.test.ts`.
```
TIMED OUT: /Invalid revalidate value "1" on "\/", must be a non-negative number or "false"/
```
The build output looks like this:
```
▲ Next.js 14.3.0-canary.73
Creating an optimized production build ...
[snip]
Error: Invalid revalidate value "1" on "/_not-found", must be a non-negative number or "false"
[snip]
Generating static pages (2/4)
> Build error occurred
Error: Export encountered an error on /_not-found, exiting due to prerenderEarlyExit: true being set
```
Note that there's no `Invalid revalidate value "1"` message for `/`, so
the test will fail.
This looks like a race condition: the invalid `revalidate` value is set
in a layout, so if `_not-found` happens to be prerendered before `/`,
it'll abort the whole prerender (because of `prerenderEarlyExit: true`).
so if the timing is right, the test -- which is looking for build errors
for `/` -- will never see them and time out.
There might be more of these, but unfortunately they're basically race
conditions, so I think we'll have to squash them as they come up.
CC @ijjk
