### 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 #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
```
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
Add copy stack trace button to copy the original stacktrace in error
overlay.
It will be a dimmed red button with disallowed cursor when it's found
not able to copy.
#### Video
https://github.com/vercel/next.js/assets/4800338/c44e0bf8-f340-41ba-8ee8-4b94fdc298e1
### Why
Makes error reporting easier, users can do one-click to copy the
original text
In preparation for the following request adapter work, this removes a
helper function for checking if a request is an RSC one, instead
preferring to use the metadata directly.
This helps readability because we know where it's coming from, and it
keeps the implementation simple.
### What
* Error on case that readable stream controller tries to close but
stream is either errored or unfinished
* Delay the DOMContentLoaded event to avoid "Connection Closed" error
### Why
Regarding to the new error about readbale stream controller, the new
error we added here is for identifying the connection is closing before
the last bit has been received that's an error case not intentional
close. It's not a proper state for close more for erroring.
As for adding the queuing for the task of dom content loaded callback,
after investigation, I found that if the DOMLoaded execute earlier the
readable stream controller cuold close earlier on client, which lead to
the "Connection Closed." error. Hence we added a `queueMicroTask` here
to delay it after hydrate call.
x-ref: [slack
thread](https://vercel.slack.com/archives/C01A2M9R8RZ/p1715188343813489)
### What
It's not helpful to see the network issue of fetching error on reading
nextjs version in dev overlay
### Why
Error case:
<img width="400"
src="https://github.com/vercel/next.js/assets/4800338/a7852d9b-1f98-4098-8498-a3b832efdbb0">
This should just be ignored, it's fine that the fetching is failed.
There're so many fetch errors code, it's easy to try-catch on fetch
instead of enumerate all the codes
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 |
Updates `create-next-app` template CSS:
- Declares variable font weights in `localFont` options and removes
instances of `font-synthesis: none`
- Removes Geist font variables from Tailwind config files
- Adds fallback sans typefaces to the `body` CSS
Co-authored-by: Sam Ko <sam@vercel.com>
### What?
Updates create-next-app's templates' `.gitignore` files for parity with
[Yarn's official
recommendations](https://v3.yarnpkg.com/getting-started/qa#which-files-should-be-gitignored),
accounting for Yarn's modern Plug-n-Play functionality.
Fixes#65586
### Why?
New projects initialized with create-next-app presently add various
extraneous files from the Yarn cache to the initial commit. This is most
notable in the case of the Next SWC binary, which may exceed 100M in
some environments and prevent users from pushing their new projects to
free GitHub repositories without rewriting the commit history or setting
up Git LFS.
### How?
I've opted to follow the recommendations for
non-[Zero-Install](https://yarnpkg.com/features/caching#zero-installs)
configurations as Zero-Install may necessitate additional configuration
and present additional complications for unsuspecting users, so I think
it's best left up to the user to opt-in.
Contrary to the example `.gitignore`s provided by Yarn, I've excluded
the `.yarn/sdks` directory as it contains IDE-specific tooling which I
think is also best left up to the user to opt-in to including.
I have retained the current `.gitignore`'s exclusion of the `/.pnp`
directory for backwards compatibility with older versions of Yarn.
