Previously, we weren't recording most (all?) of the Next.js measurements like `Next.js-hydration` in Concurrent Mode. This was mainly because the new API doesn't accept a callback.
Instead of special casing this, I've refactored it so that the measurements are just recorded when Root first flushes (via `useLayoutEffect`), which should be more or less the same timing for the old API.
Concurrent Mode is a little trickier for two reasons:
1. Flushes might be (slightly) delayed due to time-slicing and prioritization
2. Selective hydration might skew measurements in cases where full hydration is aborted
I don't have a good answer for those yet, so they'll need to be addressed when the time comes.
Noticed in this issue the reproduction was using `getStaticPaths` on a non-dynamic page incorrectly although we don't currently show an error for this.
## Bug
- [x] Related issues linked using `fixes #number`
- [x] Integration tests added
x-ref: https://github.com/vercel/next.js/issues/22931
This ensures we don't attempt adding a locale to a path when the locale is already present but in a different casing, this also ensures we successfully remove the locale if the casing differs in the path. Additional tests have been added in the `i18n-support` suites to ensure this is working correctly.
## Bug
- [x] Related issues linked using `fixes #number`
- [x] Integration tests added
Fixes: https://github.com/vercel/next.js/issues/23553
This fixes dynamic pages with `fallback: false` that don't have a matching path causing a 404 before rewrites are checked unexpectedly. This ensures we treat `fallback: false` pages as a match only if they also have a matching static path so that fallback rewrites can be triggered correctly. An additional test suite as been added to ensure this is working as expected.
## Bug
- [ ] Related issues linked using `fixes #number`
- [x] Integration tests added
Update CNA test suite to consume [vercel-learn-starter](https://github.com/vercel/next-learn-starter) as the example repo.
## Bug
- [ ] Related issues linked using `fixes #number`
- [ ] Integration tests added
## 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.
## Documentation / Examples
- [ ] Make sure the linting passes
* Use ssh for git regexr dependency
* remove .git from dep
* update
* update test
* update step
* update install
* remove dep temporarily
* remove extra change
* move deps to specific test
This is a follow-up to https://github.com/vercel/next.js/pull/23588 to update to use a regex lexer to gather the named regex groups instead of attempting to gather them through executing the regex since it can fail to gather the regex groups when they are using specific matching. This also ensures we don't pass the value as a segment when value is defined and it doesn't use a capture group. Additional tests are added to cover these cases and documentation updated to reflect this.
Closes: https://github.com/vercel/next.js/issues/23415
## Bug
- [x] Related issues linked using `fixes #number`
- [x] Integration tests added
## Documentation / Examples
- [x] Make sure the linting passes
This PR adds the deduplication logic to image optimizer so the cache will be reused as much as possible if there're multiple concurrent requests.
Fixes#23436.
## Bug
- [x] Related issues linked using `fixes #number`
- [ ] Integration tests added
## 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.
## Documentation / Examples
- [ ] Make sure the linting passes
- Enable webpack 5 by default for apps without custom webpack configuration
Fixes#23143
## Bug
- [x] Related issues linked using `fixes #number`
- [x] Integration tests added
## 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.
## Documentation / Examples
- [ ] Make sure the linting passes
This ensures we match dynamic routes correctly when applying `check: true` behavior with i18n so that no-op rewrites match dynamic routes correctly.
## Bug
- [x] Related issues linked using `fixes #number`
- [x] Integration tests added
Fixes: https://github.com/vercel/next.js/issues/23854
This PR aims at updating the `create-next-app` test suite to include a test case for the `--use-npm` flag.
## Bug
- [ ] Related issues linked using `fixes #number`
- [ ] Integration tests added
## 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.
## Documentation / Examples
- [ ] Make sure the linting passes
This ensures we don't reach the invariant from trying to create the export progress with no items during `next build` or `next export` by returning immediately when we notice there are no paths being exported. Additional tests have been added to ensure these cases don't error.
## Bug
- [x] Related issues linked using `fixes #number`
- [x] Integration tests added
Fixes: https://github.com/vercel/next.js/issues/23724
This ensures we are checking the filesystem correctly when i18n is used to prevent fallback rewrites from being applied even when a page is matched. Additional tests have been added to ensure these cases are being handled.
## Bug
- [x] Related issues linked using `fixes #number`
- [x] Integration tests added
Fixes: https://github.com/vercel/next.js/issues/23577
This ensures we don't attempt prepending the `basePath` for external (http://) `getStaticProps`/`getServerSideProps` redirects. Additional tests to cover this case have been added in the `gssp-redirect` test suites to prevent regression.
## Bug
- [x] Related issues linked using `fixes #number`
- [x] Integration tests added
Fixes: https://github.com/vercel/next.js/issues/23623
## Bug
- [x] Related issues linked using `fixes #number`
- [x] Integration tests added
## 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.
## Documentation / Examples
- [ ] Make sure the linting passes
Fixes: #23716
This ensures we don't parse the default params when auto-exporting dynamic routes with i18n since the page and path aren't equal when localized. This adds an additional test case to ensure we don't regress on this behavior in the `i18n-support` test suites.
## Bug
- [x] Related issues linked using `fixes #number`
- [x] Integration tests added
Fixes: https://github.com/vercel/next.js/issues/23167
This PR updates the Squoosh PNG decoder, which fixes#22929 in GoogleChromeLabs/squoosh#971.
## Bug
- [x] Fixes#22929
- [x] Integration tests added
## 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.
## Documentation / Examples
- [ ] Make sure the linting passes
This ensures we gather segments from the experimental has field when validating segments used in the destination to prevent the invalid segments in the destination error from showing incorrectly. This usage has been added to the custom-routes test suite to ensure the segments are passed correctly from the has field.
Fixes: https://github.com/vercel/next.js/issues/23415
## Bug
- [x] Related issues linked using `fixes #number`
- [x] Integration tests added
This pull request **temporarily** removes ESLint, as it was not landed in accordance with our standard experimental policies. We are fully committed to landing this change again.
This is being reverted because:
- Next.js has very strict goals for its install size. This feature resulted in adding over 17MB, or a 43.6% increase.
- The feature was not first landed under the `experimental` key in `next.config.js`, rather, it was added under the stable namespace (top-level)
- Using the feature doesn't do a "guided setup" like TypeScript, it should ask you to "bring your own" dependencies for ESLint
- It uses a undesirable ESLint plugin name: `plugin:@next/next/recommended`. This should read out as strictly `next`, or as short as we can get it.
- Does not provide actionable warnings (missing link to resolve issue)
- Does not follow appropriate console output styling. We need to revisit how these are presented.
To re-land this, we need to ensure the following minimums are met:
- Very minor change in install size
- Fully experimental (i.e. flagged) with warnings
- Finalized package name and configuration shape, preferably so we can do ` { extends: 'next' } `.
This adds support for returning an object from `rewrites` in `next.config.js` with `beforeFiles`, `afterFiles`, and `fallback` to allow specifying rewrites at different stages of routing. The existing support for returning an array for rewrites is still supported and behaves the same way. The documentation has been updated to include information on these new stages that can be rewritten and removes the outdated note of rewrites not being able to override pages.
## Bug
- [ ] Related issues linked using `fixes #number`
- [ ] Integration tests added
## 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`
- [x] Integration tests added
- [x] Documentation added
- [ ] Telemetry added. In case of a feature if it's used or not.
## Documentation / Examples
- [ ] Make sure the linting passes
If the upstream MIME type isn't prefixed with `image/`, the endpoint should directly response with a 400 error.
## Bug
- [x] Fixes#23312
- [x] Integration tests added
## 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.
## Documentation / Examples
- [ ] Make sure the linting passes
This adds support for a `has` field to `rewrites`, `redirects`, and `headers` to allow matching against `header`, `cookie`, and `query` values. Documentation and additional tests for the feature is also added in this PR.
Closes: https://github.com/vercel/next.js/issues/22345
For #22228
This PR:
- Adds ESLint to toolchain
- Included by default for builds (`next build`)
- Can be enabled for development (`next dev`)
- Custom formatter built for output
- Adds appropriate tests
- Adds two documentation pages
Brings back the remaining Node.js module polyfills to not break existing apps upgrading from webpack 4 to webpack 5.
Fixes#23169
## Bug
- [x] Related issues linked using `fixes #number`
- [x] Integration tests added
## 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.
## Documentation / Examples
- [ ] Make sure the linting passes
The current `<Image />` component does not fallback gracefully when JavaScript is disabled in the client / browser.
You can test this with the [official Next/Image example](https://csb-4k0kr-p8ya8f304.vercel.app/), by disabling JavaScript in the browser's DevTools. Video demo: https://streamable.com/frkvw9
This PR aims to fix this behaviour by using `<noscript></noscript>` tags to conditionally display a standard `<img>` element using the `props` passed to `<Image />` when JavaScript is disabled.
For browser sessions where JavaScript is enabled, this will not cause an increase in network requests, so there should be no downside.
One area where this PR is a bit "hacky" is that it uses a negative `margin-top` to counteract `sizerStyle.paddingTop`. From what I can tell, `sizerStyle.paddingTop` is generated on the server side, where we can not know ahead of time whether JavaScript is enabled in the browser - hence why I've opted for this solution.
Fixes#19223Fixes#21214
This PR removes the `visibility` style property change from next/image. It was previously added in #18195 to fix a bug that when no `src` is set, and that bug is not valid anymore as all images will always have `src` (and a fallback too).
It also fixes the problem that screen readers ignore elements with `visibility: hidden`.
Fixes#23201.
## Bug
- [x] Related issues #23201
- [ ] Integration tests added
## 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.
## Documentation / Examples
- [ ] Make sure the linting passes
Currently Next.js exposes internal code in the error overlay if certain errors were created from the user code. Some examples were attached in #20776.
We can clearly see that the path is wrong (`../next-server`), it should be `./node_modules/next/dist/next-server`:
The root cause is the `__nextjs_original-stack-frame` middleware resolves the file path with the following code:
```js
path.resolve(
rootDirectory,
getSourcePath(sourcePosition.source)
)
```
where `rootDirectory` is the **app root**, but `sourcePosition.source` comes from the module path, which is relative to the path of the `next` binary, not the app root.
That explains why we see `../next-server` from the error above, because it's relative to `./node_modules/next/bin/next`.
Because of that, the resolved result will never have `node_modules` in its path and it won't be filtered by the error overlay in the UI. Here's a screenshot of the frame object in the UI:
And the filter we use to determine if a frame is expanded or not only depends on `body.originalStackFrame`:
```js
expanded: !Boolean(
body.originalStackFrame?.file?.includes('node_modules') ?? true
)
```
So this PR also adds `source.file` check to ensure they will be ignored (not necessary because we fixed the path resolving).
Fixes#20776.
This PR attempts to provide an option to allow importing TS/TSX from outside of the current Next.js project root directory. Although this goes against the design decision that no source code should be imported from outside of root and [might bring tons of issues](https://github.com/vercel/next.js/issues/19928#issuecomment-741596557), it will still be helpful in some monorepo use cases.
This PR assumes that the external files are following the same language syntax rules and under the same tooling versions as the source code inside your project root. And it's also not allowed to enable the `baseUrl` feature in the external directory (as the project should only have 1 import base URL).
X-ref: #9474, #15569, #19928, #20374.
This ensures we exit the build process after the build completes even if timers/connections are left open since this can cause the process to hang indefinitely. This was the previous behavior although got changed un-intentionally in e27b7e996d
This updates our production test with an open timer to ensure it doesn't block the process from completing.
* this will fix problems with serverless target which doesn't use a runtime chunk
* It also omit env vars from contributing to cache version as webpack will handle that now
* It moves the webpack-runtime chunk from ./chunks back to ./
This PR upgrades `jest-worker` and `jest-cli` to the latest pre-release version, also removed `jest-circus` which is included in Jest by default. `jest-worker@next` includes a fix for memory leak that we need (https://github.com/facebook/jest/pull/11187).
Fixes#22925. This will also improve the OOM issue for `next dev` #15855.
