## Bug
- [ ] Related issues linked using `fixes #number`
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## Feature
- [ ] Implements an existing feature request or RFC. Make sure the feature request has been accepted for implementation before opening a PR.
- [ ] Related issues linked using `fixes #number`
- [ ] Integration tests added
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## Documentation / Examples
- [ ] Make sure the linting passes by running `pnpm lint`
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Checking if app dir exported components (page/layout/etc.) are valid components in dev mode, also update `react-is` to detect module reference properly
Co-authored-by: JJ Kasper <22380829+ijjk@users.noreply.github.com>
For `next/legacy/image`, the `data-nimg` has the `layout` prop value.
Since `next/image` doesn't have a `layout` prop, we can use `fill` when
the fill prop is used or fallback to `1`.
This PR updates `@types/node` to `14.14.31`. The most important type is
that `ParsedUrlQuery` can hold `undefined` so we are updating the code
here to explicitly handle those cases. Aside from it we are adding a
global definition taken from NodeJS for `AsyncLocalStorage` that we
export in `server.d.ts`
Adds support for:
- outputting what kind of build we did for routes in the app folder:
SSR, SSG, static
- adds the list of SSG'd routes
- adds JS size for app routes
# before
<img width="512" alt="image"
src="https://user-images.githubusercontent.com/11064311/197346761-1f288648-f480-4f3e-97dc-c4eee10ecfbf.png">
# after
<img width="426" alt="image"
src="https://user-images.githubusercontent.com/11064311/197236400-2ba245ab-a7a0-4bbe-b8f7-c9ba6ff755f5.png">
Add build output status for routes for app routes. Unclear if the logic
I added is correct so please take double check (@ijjk maybe?)
## Bug
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## Feature
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PR.
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Adds default config if @next/font is a dependency. Warns instead of
errors when subsets is missing.
[slack
ref](https://vercel.slack.com/archives/C03KED0D4N7/p1666226599615489?thread_ts=1666225686.389179&cid=C03KED0D4N7)
## Bug
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## Feature
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feature request has been accepted for implementation before opening a
PR.
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## Documentation / Examples
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Co-authored-by: JJ Kasper <jj@jjsweb.site>
Next.js 13 will require React 18.
In this PR I've only updated the peerDependency and removed the test runs in GH actions. Further cleanup will follow later, this allows us to remove the code supporting it later.
## Bug
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## Documentation / Examples
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Co-authored-by: Jiachi Liu <4800338+huozhi@users.noreply.github.com>
This PR adds a new configure property, `images.loaderFile` that allow
you to define a path to a file with an exported image loader function.
This is useful when migrating from `next/legacy/image` to `next/image`
because it lets you configure the loader for every instance of
`next/image` once, similar to the legacy "built-in loaders".
## 📖 Feature
Adds `AsyncLocalStorage` as a global variable to any edge function (middleware, Edge API routes).
Falls back to Node.js' implementation.
## 🧪 How to test
1. `pnpm build`
2. `pnpm testheadless --testPathPattern async-local`
Remove head as required in root layout.
## Bug
- [ ] Related issues linked using `fixes #number`
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## Feature
- [ ] Implements an existing feature request or RFC. Make sure the
feature request has been accepted for implementation before opening a
PR.
- [ ] Related issues linked using `fixes #number`
- [ ] Integration tests added
- [ ] Documentation added
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- [ ] Errors have a helpful link attached, see `contributing.md`
## Documentation / Examples
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- [ ] The "examples guidelines" are followed from [our contributing
doc](https://github.com/vercel/next.js/blob/canary/contributing/examples/adding-examples.md)
We can't directly put `filePath` in the generated code as it can contain in valid JavaScript string such as `"\2"` in `"C:\Users\foo\2022\bar.js"`. Reference: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Errors/Deprecated_octal
Reported issue in Next.js:
## Bug
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## Feature
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## Documentation / Examples
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Updating size-adjust calc to use azAvgWidth instead of xAvgCharWidth
Co-authored-by: Hannes Bornö <hannes.borno@vercel.com>
Co-authored-by: Balázs Orbán <info@balazsorban.com>
Co-authored-by: JJ Kasper <jj@jjsweb.site>
Make local and google font loaders more similar. Both should define `weight: string` and `style: string`.
## Bug
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This is a new experimental feature to specify a list of packages (or
subpaths in packages, like `pkg/src/index.ts`), to opt-in Next.js
transpilation in the server build.
cc @jescalan
## Bug
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I'm investigating the runtime perf of the node server and this was one of the hot spot I stumbled upon.
This diff:
- refactors getPagePath to not throw when it doesn't find a path: this function is used to check if a path exists, we don't want that kind of overhead there
- adds a LRU cache to cache the result of the evaluation
Results:
before:
> 110k requests in 11.01s, 285 MB read
after
>135k requests in 11.01s, 348 MB read
on an autocannon run
## Bug
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Make `useSelectedLayoutSegment` include the remaining segments from the current level to the leaf node.
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Moves the logic that checks if there's a new root layout to the client.
Adds test for static and dynamic catchall.
Related: #41457
## Bug
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Co-authored-by: Tim Neutkens <tim@timneutkens.nl>
Co-authored-by: JJ Kasper <jj@jjsweb.site>
This PR adds a feature in middleware to add, modify, or delete request headers. This feature is quite useful to pass data from middleware to Serverless/Edge API routes.
### Questions for Reviewers
- Should we deny modifying standard request headers like `Transfer-Encoding`?
- Should we throw an error if the header is too large? Real-world HTTP servers will accept up to only 8KB - 32KB.
### New APIs
Adds a new option `request.headers` to the `MiddlewareResponseInit` parameter in `NextResponse.next()` and `NextResponse.rewrite()`. It's a [`Header`](https://developer.mozilla.org/en-US/docs/Web/API/Headers) object holding *all* request headers. Specifically:
```ts
interface MiddlewareResponseInit extends ResponseInit {
request?: {
headers?: Headers
}
}
```
### Example
```ts
// pages/api/hello.ts
export default (req, res) => {
const valueFromMiddleware = req.headers['x-hello-from-middleware']
return res.send(valueFromMiddleware)
}
// middleware.ts
import { NextRequest, NextResponse } from 'next/server'
export default function middleware(request: NextRequest) {
// Clone request headers
const headers = new Headers(request.headers);
// Add a new request header
headers.set('x-hello-from-middleware', 'foo');
// Delete a request header from the client
headers.delete('x-from-client');
const resp = NextResponse.next({
// New option `request.headers` which accepts a Headers object
// overrides request headers with the specified new ones.
request: {
headers
}
});
// You can still set *response* headers to the client, as before.
resp.headers.set('x-hello-client', 'bar');
return resp;
}
```
### New middleware headers
- `x-middleware-override-headers`: A comma separated list of *all* request header names. Headers not listed will be deleted.
- `x-middleware-request-<name>`: A new value for the header `<name>`.
## Related Discussions
- https://github.com/vercel/next.js/discussions/31188
- https://github.com/vercel/next.js/discussions/39300
## Bug
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Related discussion:
https://vercel.slack.com/archives/C043ANYDB24/p1666208186363099?thread_ts=1664676119.265829&cid=C043ANYDB24.
Tl;dr: RSC already renders and serializes things dynamically, there is
no need to manually do that in RSC and embed them via
dangerouslySetInnerHTML.
## Bug
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PR.
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This PR adds a list of popular packages that should always opt-out
bundling in the server layer.
## Bug
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## Documentation / Examples
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This PR updates app configurations from `export const config = { ... }`
to be directly exported.
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Co-authored-by: JJ Kasper <jj@jjsweb.site>
Adds `router.back()` and `router.forward()`.
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## Bug
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This PR implements the TypeScript plugin (only applied to the app directory), and it will be automatically added to tsconfig.json when running the CLI. Due to how TS plugins work (a package name is required to specify), hence we can't use a subpath import like `next/typescript` for the plugin. To avoid installing a separate dependency, here I propose to reuse the `next` package: if the default export is called with the TypeScript option, we can say it's being used as a plugin. There is also environment variables we can check here, however it's specifically for VS Code (`VSCODE_CLI=1`) where this plugin should be working with other editors too.
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This PR fixes two bugs:
- Fixes#40419
- Fixes#41393
The first is when the aspect ratio of the `width` and `height` does not
match the aspect ratio of the `blurDataURL` provided. This can result in
artifacts around the edges. The solution is to add
`preserveAspectRatio="none"`.
The second is when there is no `width` or `height` provided (which is
normal when using `fill`) so the viewBox was undefined. This can also
cause artifacts around the edges. The solution is to change the blur
technique from gaussian to css filter, similar to `next/legacy/image`.
Note: css blur might be [slower in
firefox](https://bugzilla.mozilla.org/show_bug.cgi?id=925025) which is
why we'll only use it for this corner case.
Fixes#41476, ref #40679
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## Documentation / Examples
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This PR implements the process of generating strict "type guard" files,
to ensure that all entrypoints have the correct export types. The type
checking process happens automatically during `next build`.
## Bug
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PR.
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## Documentation / Examples
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Co-authored-by: Tobias Koppers <tobias.koppers@googlemail.com>
For css-in-js libs like styled-jsx we don't recommend to use on server side since it will blow up the rsc payload during navigation. This upgration of styled-jsx includes `client-only` as dependency so that it will throw when it's been used on serevr layer
x-ref: https://github.com/vercel/styled-jsx/pull/816
Remove `browsersListForSwc` since it is enabled by default now, and disable `legacyBrowsers` by default.
This PR also bumps the default browserslist to the following:
- Chrome 64+
- Edge 79+
- Firefox 67+
- Opera 51+
- Safari 12+
See related RFC:
- Closes#33227
Co-authored-by: JJ Kasper <22380829+ijjk@users.noreply.github.com>
Inline a react and react-dom for app dir, when `appDir` flag is enabled
opt into the built-in version for all.
For server layer react, use the react share subset for server
components.
For all server side of react-dom usage, use the server-rendering-stub.
Co-authored-by: Shu Ding <g@shud.in>
Co-authored-by: JJ Kasper <jj@jjsweb.site>
There is this `createAbsolutePath` function that concatenates a virtual
route and a dir path. The virtual route uses the posix separator `/` but
the dir path uses `\` in Windows.
Here's an example of the error:
```
error - ./node_modules/.pnpm/next@12.3.2-canary.29_ikefsjgelhtr3cq7h24gohqzbe/node_modules/next/dist/build/webpack/loaders/next-app-loader.js?name=app%2Fpage&appPaths=%2Fpage&pagePath=private-next-app-dir%
2Fpage.tsx&appDir=E%3A%5CWorkSpace%5C2022%5Csongbook.studio%5Capp&pageExtensions=tsx&pageExtensions=ts&pageExtensions=jsx&pageExtensions=js!
Module parse failed: Octal literal in strict mode (9:41)
```
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## Documentation / Examples
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The `target: serverless` config was deprecated a year ago starting in
[Next.js 12](https://nextjs.org/blog/next-12).
Tests were disabled in #41252 so we can now remove `target: serverless`
and all usage of `target` in `next.config.js`.
Co-authored-by: Balázs Orbán <info@balazsorban.com>
Co-authored-by: JJ Kasper <jj@jjsweb.site>
This ensures we properly clear the `sc_client` component cache from
`react-server-dom-webpack` in development so that HMR works properly
after a refresh.
## Bug
- [x] Related issues linked using `fixes #number`
- [x] Integration tests added
- [ ] Errors have a helpful link attached, see `contributing.md`
Fixes: [slack
thread](https://vercel.slack.com/archives/C043ANYDB24/p1666051202574509)
Add failing test for the back button download bug. Created it as a new
app given that adding it to the existing `app` suite did not reproduce
the issue for some reason.
The underlying reason is that we need to add `Vary: __rsc__,
__next_router_prefetch__` to ensure Chrome does not cache the response
and serve it on back button.
The download was caused by the `application/octet-stream` content type,
but that was just a consequence of serving the wrong response.
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## Bug
- [ ] Related issues linked using `fixes #number`
- [ ] Integration tests added
- [ ] Errors have a helpful link attached, see `contributing.md`
## Feature
- [ ] Implements an existing feature request or RFC. Make sure the
feature request has been accepted for implementation before opening a
PR.
- [ ] Related issues linked using `fixes #number`
- [ ] Integration tests added
- [ ] Documentation added
- [ ] Telemetry added. In case of a feature if it's used or not.
- [ ] Errors have a helpful link attached, see `contributing.md`
## Documentation / Examples
- [ ] Make sure the linting passes by running `pnpm lint`
- [ ] The "examples guidelines" are followed from [our contributing
doc](https://github.com/vercel/next.js/blob/canary/contributing/examples/adding-examples.md)
Co-authored-by: JJ Kasper <jj@jjsweb.site>
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Consider the following middleware which redirects to
`/path/to#fragment`.
```ts
import { NextResponse } from 'next/server';
export async function middleware(request) {
const url = new URL('/path/to#fragment', request.url);
return NextResponse.redirect(url);
}
```
However, it actually redirects to `/path/to`, namely it discards the
fragment part in the destination URL `#fragment`. This is because
`NextURL.toString()` does not append that part. This PR fixes the bug.
## Bug
- [ ] Related issues linked using `fixes #number`
- [x] Integration tests added
- [ ] Errors have a helpful link attached, see `contributing.md`
## Feature
- [ ] Implements an existing feature request or RFC. Make sure the
feature request has been accepted for implementation before opening a
PR.
- [ ] Related issues linked using `fixes #number`
- [ ] Integration tests added
- [ ] Documentation added
- [ ] Telemetry added. In case of a feature if it's used or not.
- [ ] Errors have a helpful link attached, see `contributing.md`
## Documentation / Examples
- [ ] Make sure the linting passes by running `pnpm lint`
- [ ] The "examples guidelines" are followed from [our contributing
doc](https://github.com/vercel/next.js/blob/canary/contributing/examples/adding-examples.md)
