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.
When hot-reloading an edge runtime page, sometimes we randomly get this:
```
[InvariantError: Invariant: Cannot call onClose on a response that is already sent. This is a bug in Next.js.] {
name: 'InvariantError'
}
```
and since `unstable_after` relies on `onClose`, no callbacks are called.
I believe this is because `web-server` [calls `res.send()` pretty early
for streaming
responses](b9817f8351/packages/next/src/server/web-server.ts (L311)),
so `res.sent` becomes `true` even though we're still streaming, and
prevents us from calling `onClose` in the streaming render. It makes
more sense to check the CloseController's `isClosed` instead -- when
that becomes `true`, we _really_ shouldn't call onClose anymore (points
to a bug), but before that it's fine.
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 PR adds a flag to Next.js to enable Webpack options to improve
memory usage. See https://github.com/webpack/webpack-sources/pull/155
for a full description of the changes and impact on memory.
This PR adds a patch to `webpack-sources` temporarily that contains the
fixes as the real changes are iterated on to merge upstream in the
`webpack/webpack-sources` repository. After that is done, the patch will
be reverted and the latest `webpack-sources` version will be updated in
Next.js.
To avoid extra network hops we can compare existing cache entries we've
already fetched and see if the revalidated value matches and if it does
we can avoid sending the set request with the identical data.
As noted in (https://github.com/vercel/nextpack/pull/103), by not having
this as a default feature, when running the `build-native` script it's
not able to re-use any cargo caches that might already exist from a
default build.
Because this feature impacts the swc crate, everything dependent on it
can be forced to rebuild.
By making this a default feature, the hope/theory is that the number of
different ways we potentially build our dependency graph reduces, and
cargo cache hits will improve.
## Changes
- Add `plugin` to the default set of features for `next-swc-napi`.
- Consolidate `build-native-no-plugin-woa` with
`build-native-no-plugin`. Given the lack of any other default features,
these are equivalent.
- `i686-pc-windows-msvc`: Switch to `build-native-no-plugin-release` in
CI instead of just supplying the `--release` flag. This has the benefit
of also enabling `tracing/release_max_level_info`, which might reduce
the size of or speed up these builds.
- `x86_64-apple-darwin`: Remove a redundant `--release` flag in the CI
config (no expected changes).
## Testing
I've tested this locally on Linux (`pnpm run build-native`) and
Windows-on-ARM (`pnpm run build-native-no-plugin`) by making sure things
still build. I'll also make sure CI passes.
This parameter was previously used for a warning message, but we no
longer print that warning since
https://github.com/vercel/next.js/pull/63321 so now we can remove the
unused parameter.
Previously with Turbopack, we would attempt to establish a websocket
connection to the HMR server, even when running production builds. This
adds `next-turbopack.ts`, which includes the necessary runtime code for
Turbopack, but does not include HMR code.
Test Plan: `TURBOPACK=1 TURBOPACK_BUILD=1 pnpm next build
test/e2e/app-dir/app-middleware`
---------
Co-authored-by: Tim Neutkens <tim@timneutkens.nl>
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)
Updates the `create-next-app` template CSS to:
- Prevent browsers (e.g. Safari) from using synthetic bold font weights
- Move CSS variables out of global CSS / Tailwind config, to simplify
the process of wiping the default template.
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Co-authored-by: JJ Kasper <jj@jjsweb.site>
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
We allow users in the Next.js team to push directly canary in order to allow emergency fixes (and, AFAIU, some other things in GH workflows). This PR adds a guardrail to prevent absentminded people from doing it by accident, requiring a 'git push --no-verify' to bypass the hook.
## Background
Currently route handlers will be attempted to statically generate the
same as normal pages in app router. If a route handler accessed dynamic
data such as `cookies()`, `headers()`, `req.url`, or similar we would
bail from this static generation but this didn't handle the case where
you would do data fetching via a non-fetch based library e.g. `redis` or
even using `Date.now()` or `Math.random()` so users would expect these
to be run every request like normal API endpoints but they would be
static so wouldn't be executed again after a build.
## New Behavior
As discussed this disable the default static generation handling for
route handlers as we've seen this confuse our users since in most cases
when creating a route handler you are handling dynamic workloads. This
doesn't remove the ability to static generate route handlers though as
you can still manually specify:
If you specify `export const revalidate = 1` we will still bail if
dynamic data is accessed to prevent accidental `revalidate` configuring
but this can be avoided via `force-static` being used as well.
```js
export const dynamic = 'force-static'
// or
export const dynamic = 'error'
// or
export const revalidate = false
// or
export const revalidate = 1 // value great than 0
// or
export const generateStaticParams() {}
```
---------
Co-authored-by: Zack Tanner <1939140+ztanner@users.noreply.github.com>