### What
Actions that revalidate the router state by kicking off a refetch (such
as `router.refresh()` or dev fast refresh) would incorrectly trigger an
interception route if one matched the current URL, or in the case of
already being on an intercepted route, would trigger the full detail
page instead.
### Why
Interception rewrites use the `nextUrl` header to determine if the
requested path should be rewritten to a different path. We currently
forward that header indiscriminately, which means that if you were on a
non-intercepted route and called `router.refresh()`, the UI would change
to the intercepted content instead (since it would treat it the same as
a soft-navigation).
### How
This updates various reducers to only forward the `nextUrl` header if
there's an interception route present in the tree. If there is, we want
to refresh its data, rather than the data for the underlying page. The
reverse is also true: if we were on the "full" page, and triggered a
`router.refresh()`, we won't forward `nextUrl` meaning it won't fetch
the interception data.
In order to determine if an interception route is present in the tree, I
had to add a new segment type for dynamic interception routes, as by the
time they reach the client they are stripped of their interception
marker.
**Note: There are a series of bugs related to `router.refresh` with
parallel/interception routes, such as the previous page/slot content
disappearing when triggering a refresh. This does not address all of
those cases, but I'm working through them!**
Fixes#60844Fixes#62470
Closes NEXT-2737
This PR is a follow up to #63427 and simplifies the
`createRootLayoutValidatorStream` function to check each chunk
individually instead of combining all of them into one. This should
improve performance
Closes NEXT-2868
Currently when we generate payloads in app router, the order of RSC
chunks aren't deterministic even if the content stays the same. This
means that any caches that rely on etags for detecting changes in
content aren't able to reliably cache/and avoid invalidating properly.
To avoid this we can manually sort the content before generating the
etag. Eventually this can be fixed upstream in react although that is a
bigger lift so we are doing this for now to alleviate the issue.
x-ref: [slack
thread](https://vercel.slack.com/archives/C042LHPJ1NX/p1709937748240119?thread_ts=1709856182.174879&cid=C042LHPJ1NX)
Closes NEXT-2825
### What
Implement webpack's middleware plugin equivalent for webpack, to raise
unsupported error in runtime.
PR utilizes import map alias for the edge context, to resolve into
modulereplacer internally provides a virtualsource to call runtime error
logic. Since we already have globally augmented, the virtualsource only
need to take export those into module.
Closes PACK-2789
In #61573, I updated the navigation reducer to request a new prefetch
entry if it's stale. But this has the unintended consequence of making
instant loading states effectively useless after 30s (when the prefetch
would have expired). Blocking navigation and then rendering the loading
state isn't ideal - if we have some loading data in a cache node, we
should re-use it.
Now that #62346 stores loading data in the `CacheNode`, we can copy over
`loading` during a navigation.
This PR repurposes `fillCacheWithDataProperty` which wasn't being used
anywhere, to instead be a utility we can use to programmatically trigger
a lazy fetch on a particular segment path by nulling out it's data while
copying over other properties. We could have used the existing util
as-is, but ideally we only have a single spot where lazy fetching can
happen, which currently is in `LayoutRouter`.
When a stale prefetch entry is detected, rather than applying the data
to the tree, this PR will copy over the `loading` nodes and will
"delete" the data so it can be refetched.
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Closes NEXT-2806
This PR is strictly a performance improvement. It should not change
implementation behavior in anyway.
This PR replaces `decoder.decode()` operations by operating with the
encoded `Uint8Array` instances directly. I added some utility functions
to make things a bit easier to understand.
Ideally, this change also maintains a fair amount of code readability.
Will measure estimate performance improvement shortly.
Closes NEXT-2848
### What
Fixes to honor metadata route's segment config - turbopack replaces it
into route handler, then parsed segment config so original segment
config was ignored always.
Closes PACK-2762
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### What?
Now that @phanect added support for ESM PostCSS config files in PR
#63109 (original issue #34448), PostCSS can use ESM config by default.
It needs to use an `.mjs` extension by default because `create-next-app`
scaffolds CommonJS apps by default.
This will also work with ESM projects which have added `"type":
"module"` in their `package.json`
### Why?
1. To convert one more file to ESM
2. To use the modern format
3. To follow other similar migrations that have taken place in the
Next.js codebase (eg. `next.config.mjs`)
### How?
- Change file extensions from `.cjs` to `.mjs` (change similar to PR
#58380)
- Change module format from CommonJS to ESM
- Add type for the config, for users who enable `checkJs: true` in
`tsconfig.json`
Co-authored-by: Sam Ko <sam@vercel.com>
## What?
Got a report from @juliusmarminge that running examples in the
[uploadthing monorepo](https://github.com/pingdotgg/uploadthing) would
result in resolving errors with Turbopack.
Turns out the monorepo root couldn't be resolved and the reason for that
is that they are using `bun install` as the package manager, which we
didn't account for in the `findRootLockFile` logic. This PR adds
`bun.lockb` to the existing list that already check npm/pnpm/yarn.
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Closes NEXT-2766
script tag cannot be placed under html directly, users reported a case
in #51242 that having `<Script>` under html will cause hydration error,
this will display the React hydration error related warning of bad usage
for it.
You will see this warning in dev overlay instead of displaying nothing
```
In HTML, <script> cannot be a child of <html>.
This will cause a hydration error.
```
Added two other react warnings detection patterns as well
* `Warning: In HTML, text nodes cannot be a child of <%s>.\nThis will
cause a hydration error.',`
* `Warning: In HTML, whitespace text nodes cann...`
But tested they're not generating hydration errors, only warnings in
console, so we don't need to have tests for them.
Closes NEXT-2835
Two small changes. There's no need to check `payload === undefined` as
it will always be a string. At the other place we can reuse the global
`textEncoder` instance.
Closes NEXT-2830
### What?
This fixes more CSS ordering issues with production and webpack dev.
* CSS Modules must not be side effect free as side effect free modules
are per definition order independent which is not true for CSS
* fix order of iterating module references
* disable splitChunks for CSS
* special chunking for CSS with loose and strict mode
* more test cases
Closes PACK-2709
Currently, we always fallback to https as the protocol for redirection
requests inside Server Actions even for the local server host, which can
be `0.0.0.0` and result in SSL errors.
Closes#63114, partially resolves
https://github.com/vercel/next.js/issues/62903#issuecomment-1984179180.
Closes NEXT-2829
### What?
* Allow to apply webpack loaders depending on "conditions".
* add a few next specific conditions depending on context type
### Why?
Some loaders need different behavior depending on context
### How?
Closes PACK-2748
Fixes#34448
Before this PR, next/lib/find-config fails to load \*.config.mjs files
and \*.config.js files when `"type": "module"` is set in package.json.
It expects CommonJS files although the \*.config.{js|mjs} files are
written in JS modules format (i.e. using `import` and `export`).
This PR fixes it so that it can load configs written in JS modules
format.
---------
Co-authored-by: Jiachi Liu <inbox@huozhi.im>
Turbopack HMR: Log when more errors cause full page reload
Depends on vercel/turbo#7715
This adds messaging when HMR updates fail because:
- An HMR update could not be applied, such as updating an anonymous
function component
- An update follows a server-rendered error
Test Plan: See now passing tests in the manifest
Closes PACK-2728
### What
In component diff view, dim the indirect components so that users can
focus on the adjacent ones, and can easily locate the bad tags in
visual.
We still have the `^^^` text for jest snapshots, but they'll not
visually displayed for users, as the red text is enough for users to
notice the incorrect one and `^^^` was more like a terminal text styles
that we don't need to bring them in the web UI.
#### After
<img width="400"
src="https://github.com/vercel/next.js/assets/4800338/9a24f830-14b4-49a2-948a-5afbced8ec6f">
#### Before
<img width="400"
src="https://github.com/vercel/next.js/assets/4800338/c3ee593a-956b-447e-bad2-88007159d00f">
Closes NEXT-2826
Closes NEXT-2771
### What?
Apply same patch as https://github.com/vercel/next.js/pull/62983 for
`pages/_app.js`
### Why?
To make turbopack match behavior of webpack mode, and make the test
passs
### How?
Closes PACK-2407
This changes how loading components are provided to `LayoutRouter` to instead be part of the `CacheNode`. This makes it so that we can copy it over/expire it in a similar way to the `data` property on a `CacheNode`. Consequently, this fixes a bug in PPR navigations, where 2 different loading states (the prefetched one, followed by the updated one) might be displayed upon navigating.
Note: This disables a PPR test that asserts the loading data gets expired after 5 minutes. As implemented, the loading data will remain cached for a particular segment.
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Closes NEXT-2557
### What?
* rename test case
* improve error message and handle edge case for require resolving
* fix test case actually testing externals (webpack was silently
bundling, Turbopack showed error that helped to find the broken test
case)
### Why?
### How?
Closes PACK-2662
