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?
optimize allocations in server actions transform
In one edge case it reduces allocations from 30GB to 4.5MB and time from
760ms to 11ms.
### Why?
make it faster
### 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 a new `layerAssets` property (containing styles and script
tags) to `FlightDataPath`. Previously these were lumped in with the
`head` node, but we intentionally only ever render a single `head`, to
avoid duplicating metadata. This would mean `<AppRouter />` would only
ever render imported stylesheets for a single page in a racey way.
However, since Float handles hoisting and deduping these style tags,
we're safe to render them for each segment.
This PR introduces no change in behavior, aside from sending
`layerAssets` down from the server and storing it in the client router
cache. These nodes aren't rendered -- this is done in #66300.
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
One-word 'checkout' is a noun or adjective that refers to the act of
taking items out of a store after paying for them. 2. Two-words 'check
out' is a verb that refers to request someone to look at something.
Corrected the spelling of "checkout" to "check out" in the documentation
to improve readability and accuracy. This change ensures proper usage of
the phrase when referring to the installation guide.
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Co-authored-by: Sam Ko <sam@vercel.com>
### What?
If the error message contains a reference to `node_modules` it would
omit the error message, but actually we only want to omit the stack
frames
### Why?
### How?
### What?
We have a GC with rough edges, but it is worth exposing a flag to be able to try it out.
### Why?
I think it would be useful to set up a benchmark that tests the GC perf on new canary builds to make sure we are going in the right direction.
### How?
Add a new flag in the experimental settings and wire it up to the existing native bindings.
Closes PACK-3093
In the discord server, people were confused whether maxAge accepts in
second or millisecond. It would be worth specifying it
---------
Co-authored-by: Sam Ko <sam@vercel.com>
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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We already have workers available when determining if a page is static,
and we expose those workers to the page export handler. We should re-use
those workers instead of creating new ones.
In practice this seems like dead code, since `setupWorkers` returns the
existing workers if a pages worker exists, and we always create a pages
worker.
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### What?
This bumps the supported `msw` version when using the `playwright` test
mode. There's no need for mocking requests and responses anymore since
[they adopted](https://github.com/mswjs/msw/pull/1436) the global fetch
API in `msw`.
### Why?
Users can extend `test` from `playwright` manually and create the `msw`
fixtures, but it's better if it works out of the box with newer versions
of `msw`.
Fixes#63338.
Co-authored-by: Sam Ko <sam@vercel.com>
Effectively a revert of https://github.com/vercel/next.js/pull/66006,
but:
- Keeps the cleanup changes from that PR.
- With https://github.com/vercel/nextpack/pull/106 removing the explicit
`--features plugin` flag, we will match behavior between cargo's
defaults and the nextpack development scripts (which we want to do for
maximizing cache reuse).
The tradeoff here is faster cold builds, at the cost of waiting longer
when you want to test with plugins.
Feedback from @kdy1 was:
> I think it's a good idea to disable plugin by default for nextpack. We
don't use it for most of daily development, but it's very large and slow
to compile
Tested by running both:
```
pnpm build-native
pnpm build-native-no-plugin
```
