### What
CSS imports in components that loaded by `next/dynamic` in client
components will cause the css are missing initial in
SSR, and loaded later on client side which will lead to FOUC. This PR
fixes the issue and get CSS preloaded in the SSR for dynamic components.
### Why
The CSS from client components that created through `next/dynamic` are
not collected in the SSR, unlike RSC rendering we already collect the
CSS resources for each entry so we included them in the server rendering
so the styles are availble at that time. But for client components, we
didn't traverse all the client components and collect the CSS resources.
In pages router we kinda collect all the dynamic imports and preload
them during SSR, but this approach is not able to be applied to app
router due to different architecture. Since we already have all the
dynamic imports info and their related chunks in
react-loadable-manifest, so we can do the similar "preloading" thing in
app router. We use the current dynamic module key (`app/page.js ->
../components/foo.js`) which created by SWC transform and match it in
the react loadable manifest that accessed from `AsyncLocalStorage`, to
get the css files created by webpack then render them as preload
styleshee links. In this way we can SSR all the related CSS resources
for dynamic client components.
The reason we pass down the react loadable manifest through
`AsyncLocalStorage` is that it's sort of exclude the manifest from RSC
payload as it's not required for hydration, but only required for SSR.
Note: this issue only occurred in dynamic rendering case for client
components.
### Other Changes Overview
- Change the react loadable manifest key from pages dir based relative
path to a source dir based relative path, to support cases with both
directory or only one of them
Closes NEXT-2578
Fixes#61212Fixes#61111Fixes#62940
Replacement for #64021 but only with production test
## What?
Currently any configuration issue like including `.babelrc` was not
highlighted during Turbopack build. This PR solves that issue as well as
ensuring the warnings are not double-logged because of a change that was
supposed to be development-only.
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### How?
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Closes NEXT-3049
## Why?
This fixes the ordering of `--experimental-debug-memory-usage` so the
help output for experimental options are alphabetical/ordered properly
(grouped at the end).
- Related https://github.com/vercel/next.js/pull/63869
Closes NEXT-3054
Provides a `revalidateReason` argument to `getStaticProps` ("stale" |
"on-demand" | "build").
- Build indicates it was run at build time
- On-demand indicates it was run as a side effect of [on-demand
revalidation](https://nextjs.org/docs/pages/building-your-application/data-fetching/incremental-static-regeneration#on-demand-revalidation)
- Stale indicates the resource was considered stale (either due to being
in dev mode, or an expired revalidate period)
This will allow changing behavior based on the context in which it's
called.
Closes NEXT-1900
## Why?
When we fetch the same cache key (URL) but add an additional tag, the
revalidation does not re-fetch correctly (the bug just uses in-memory
cache again) when deployed.
:repro: →
https://github.com/lostip/nextjs-revalidation-demo/tree/main
---------
Co-authored-by: Ethan Arrowood <ethan@arrowood.dev>
### What
When submitting a server action on a page that doesn't import the action
handler, a "Failed to find server action" error is thrown, even if
there's a valid handler for it elsewhere.
### Why
Workers for a particular server action ID are keyed by their page
entrypoints, and the client router invokes the current page when
triggering a server action, since it assumes it's available on the
current page. If an action is invoked after the router has moved away
from a page that can handle the action, then the action wouldn't run and
an error would be thrown in the server console.
### How
We try to find a valid worker to forward the action to, if one exists.
Otherwise it'll fallback to the usual error handling. This also adds a
header to opt out of rendering the flight tree, as if the action calls a
`revalidate` API, then it'll return a React tree corresponding with the
wrong page.
Fixes#61918Fixes#63915
Closes NEXT-2489
This PR adds a `--experimental-debug-memory-usage` flag to `next build`
to make it easier to debug memory performance. This mode does the
following things:
- Periodically prints the current memory usage of the process
- Records garbage collection events and warns about long running GC
events
- Kills the process if it detects GC thrashing near heap limit
- Automatically takes a heap snapshot if heap usage rises above 70% of
the total heap
- Automatically takes a heap snapshot if the process is close to running
out of memory
- Prints a report at the end of the build with information about peak
memory usage and time spent in garbage collection
---------
Co-authored-by: JJ Kasper <jj@jjsweb.site>
Currently acornjs has an issue with compiling undici, add undici
externalize, once it's resolved we can remove the externalization for it
```
You may need an additional loader to handle the result of these loaders.
| // 5. If object is not a default iterator object for interface,
| // then throw a TypeError.
> if (typeof this !== 'object' || this === null || !(#target in this)) {
| throw new TypeError(
| `'next' called on an object that does not implement interface ${name} Iterator.`
Import trace for requested module:
../../../../node_modules/.pnpm/undici@6.12.0/node_modules/undici/lib/web/fetch/util.js
../../../../node_modules/.pnpm/undici@6.12.0/node_modules/undici/lib/web/fetch/headers.js
../../../../node_modules/.pnpm/undici@6.12.0/node_modules/undici/index.js
./app/undici/page.js
```
Closes NEXT-3030
I'm not sure why this issue is impacting me and seemingly not others,
but on Debian 12 with the default linker options (gcc with ld) I get the
following compilation error regarding unresolved symbols:
https://gist.github.com/bgw/92da94f46b0994514a144b8938aa2f6c
This flag downgrades that linker error to a warning (which cargo hides).
I've checked that this flag is supported by ld, gold, lld, and mold.
I've also tried building with mold in addition to ld. I'm restricting
the option to linux to avoid potentially breaking other platforms.
Tested by running:
```
cargo test -p next-swc-napi
```
Which now gives:
```
running 2 tests
test transform::test_deserialize_transform_regenerator ... ok
test transform::test_deser ... ok
```
### What
We introduced a new algorithm to find the matched hydration error tags,
when there're two tags indicating children and parent as bad descendence
relationship. Now we search for the child first from the last index, and
then from found child to search its above parent. This way we can find
the two related tags in O(1), since they could be not directly nested.
### Why
When a hydration error occurred, such as bad nesting `div` under `p`,
one of the tag `div` is matched multiple times in the component stack,
it shouldn't be highlighted multiple times. This PR fixes the bad
matching about multiple nested tags, e.g. when there're many `div` tag
and `div` is one of the bad tag, only the one directly under p should be
highlited.
Case
```
Page > div > div > p > div
```
Current Result: all `div` and `p` get highlighted, `[]` represents
highlighted.
```
Page > [div] > [div] > [p] > [div]
```
Expected: only the related 2 tags are highlighted, `[]` represents
highlighted.
```
Page > div > div > [p] > [div]
```
Thanks @JohnPhamous for reporting the issue
Closes NEXT-3022
### Why?
The examples `with-apollo` and `with-graphql-hooks` included outdated
API endpoints and packages.
This resulted in the **failed Vercel Deployment** of the examples.
<details><summary>Screenshot of failed deployments</summary>
<p>
#### with-graphql-hooks
#### with-apollo
</p>
</details>
### How?
- Migrated examples from `pages` to `app` router and removed invalid API
endpoints.
- Refactored the example to a minimal template as possible with
essential features.
Closes#9865#10253#36112
---------
Co-authored-by: Sam Ko <sam@vercel.com>
Fixes#64018
Adds support for modern configurations introduced in TS 5.4
Expected output: not modifying the `module`, `esModuleInterop` configs
since `module: preserve` is present
```
We detected TypeScript in your project and reconfigured your tsconfig.json file for you. Strict-mode is set to false
by default.
The following suggested values were added to your tsconfig.json. These values can be changed to fit your project's n
eeds:
- lib was set to dom,dom.iterable,esnext
- allowJs was set to true
- skipLibCheck was set to true
- strict was set to false
- noEmit was set to true
- incremental was set to true
- include was set to ['next-env.d.ts', '**/*.ts', '**/*.tsx']
- exclude was set to ['node_modules']
The following mandatory changes were made to your tsconfig.json:
- isolatedModules was set to true (requirement for SWC / Babel)
- jsx was set to preserve (next.js implements its own optimized jsx transform)
```
---------
Co-authored-by: Jiachi Liu <inbox@huozhi.im>
### What?
Emit `<link data-next-font="size-adjust" rel="preconnect" href="/"
crossorigin="anonymous"/>` in more cases.
### Why?
To align with the default mode
### How?
This is a hotfix since it breaks `next lint`, I'll start to implement
eslint v9 for canary.
x-ref: #64114
x-ref: [eslint v9
release](https://github.com/eslint/eslint/releases/tag/v9.0.0)
Fixes#64136
---------
Co-authored-by: Zack Tanner <zacktanner@gmail.com>
## What?
When creating the Next.js instance fails for whatever reason (most
commonly `next build` failing) it currently exits the process, this
causes Jest to not report these tests as failed.
The change in this PR ensures that anytime creating the instance fails
it throws an error that is caught by Jest and then causes Jest to report
the tests as failed.
The reporting of tests is relevant as our monitoring tools (i.e. DataDog
/ Turbopack test manifest) rely on correct reporting of all failing
tests.
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### Why?
### How?
Closes NEXT-
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Closes NEXT-3016
