This makes sure the image optimizer doesn't de-animate images by transforming them with sharp since sharp doesn't currently handle outputting animated images
x-ref: https://github.com/vercel/next.js/pull/17749
This makes sure the correct `initialRevalidateSeconds` field is populated in the `prerender-manifest` for non-dynamic SSG pages since they will be inserted into the `initialPageRevalidationMap` under their locale prefixed variant with `i18n` enabled
x-ref: https://github.com/vercel/next.js/pull/17370
This PR adjust the Web Vitals reporting to be called *after* rendering occurs. It used to work like this, but React's render method is no longer synchronous—so we have to do it in an effect.
Existing tests should cover this code path, and IMO it's unfeasible to test that it's invoked _after_ hydration.
Also removed the `&& ST` condition which is not relevant to Web Vitals.
This adds the i18n config items to the routes-manifest so that they can accessed in the builder. This doesn't increment the routes-manifest version as existing value shapes haven't been modified and an additional non-breaking value is being added
x-ref: https://github.com/vercel/next.js/pull/17370
This adds the `locale` prop for `next/link` to allow transitioning between locales client-side and also allows passing the locale to `router.push/replace` via the transition options similar to `shallow` e.g. `router.push('/another', '/another, { locale: 'nl' })`
x-ref: https://github.com/vercel/next.js/pull/17370
This updates to set the `NEXT_LOCALE` cookie to the default locale when the user prefers a different locale from the default in their `accept-language` header but visits the default locale path e.g. `/en-US` with a `accept-language` preferred header of `nl` will set the `NEXT_LOCALE=en-US` header and then redirect to `/`
x-ref: https://github.com/vercel/next.js/pull/17370
While working on https://github.com/vercel/next.js/pull/17755 noticed a couple of cases that needed fixing and broke them out to this PR to make that one easier to review. One fix is for `ssgCacheKey` where it wasn't having the `locale` prefix stripped correctly due to the locales no longer being populated under the server instances `renderOpts` and the second fix is for the `asPath` not being set to `/` when the `locale` is the only part in the URL e.g. `/en` became an empty string `""`
x-ref: https://github.com/vercel/next.js/pull/17370
Follow-up to https://github.com/vercel/next.js/pull/17370 this adds mapping of locales to domains and handles default locales for specific domains also allowing specifying which locales can be visited for each domain.
This PR also updates to output all statically generated pages under the locale prefix to make it easier to locate/lookup and to not redirect to the default locale prefixed path when no `accept-language` header is provided.
Follow-up PR to #17370 this adds generating auto-export, non-dynamic SSG, and fallback pages with all locales. Dynamic SSG pages still control which locales the pages are generated with using `getStaticPaths`. To further control which locales non-dynamic SSG pages will be prerendered with a follow-up PR adding handling for 404 behavior from `getStaticProps` will be needed.
x-ref: https://github.com/vercel/next.js/issues/17110
This is a follow-up to https://github.com/vercel/next.js/pull/16973 which adds handling for the breaking change in the latest version of css-loader that causes unresolved file references in `url` or `import` to cause the build to fail. This fixes it by adding our own resolve checking and when it fails disabling the `css-loader`'s handling of it.
Fixes: https://github.com/vercel/next.js/issues/17701
Follow-up PR to https://github.com/vercel/next.js/pull/17370 when the path is not prefixed with a locale and the default locale is the detected locale it doesn't redirect to locale prefixed variant. If the default locale path is visited and the default locale is visited this also redirects to the root removing the un-necessary locale in the URL.
This also exposes the `defaultLocale` on the router since the RFC mentions `Setting a defaultLocale is required in every i18n library so it'd be useful for Next.js to provide it to the application.` although doesn't explicitly spec where we want to expose it. If we want to expose it differently this can be updated.
This adds the initial changes outlined in the [i18n routing RFC](https://github.com/vercel/next.js/discussions/17078). This currently treats the locale prefix on routes similar to how the basePath is treated in that the config doesn't require any changes to your pages directory and is automatically stripped/added based on the detected locale that should be used.
Currently redirecting occurs on the `/` route if a locale is detected regardless of if an optional catch-all route would match the `/` route or not we may want to investigate whether we want to disable this redirection automatically if an `/index.js` file isn't present at root of the pages directory.
TODO:
- [x] ensure locale detection/populating works in serverless mode correctly
- [x] add tests for locale handling in different modes, fallback/getStaticProps/getServerSideProps
To be continued in fall-up PRs
- [ ] add tests for revalidate, auto-export, basePath + i18n
- [ ] add mapping of domains with locales
- [ ] investigate detecting locale against non-index routes and populating the locale in a cookie
x-ref: https://github.com/vercel/next.js/issues/17110
Prior to this pull request, Next.js would immediately decode all URLs sent to its server (via `path-match`).
This was rarely needed, and Next.js would typically re-encode the incoming request right away (see all the `encodeURIComponent`s removed in PR diff). This adds unnecessary performance overhead.
Long term, this will also help prevent weird encoding edge-cases like #10004, #10022, #11371, et al.
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No new tests are necessary for this change because we've extensively tested these edge cases with existing tests.
One test was updated to reflect that we skip decoding in a 404 scenario.
Let's see if all the existing tests pass!
This makes sure we have the correct `asPath` value to prevent breaking hydration for `getServerSideProps` pages and doesn't re-use the `resolvedUrl` value for the `asPath` and instead creates a separate `resolvedAsPath` value that only removes the `_next/data` prefix from the path. Additional tests have been added in the `getServerSideProps` suite to ensure correct `asPath` with rewrites.
Fixes: https://github.com/vercel/next.js/issues/17113
Fixes SSG pages that start with `/api` not being detected as SSG pages. This also adds tests to ensure this is working correctly in the `prerender` suite.
x-ref: https://github.com/vercel/next.js/issues/17091
This continues off of https://github.com/vercel/next.js/pull/17081 and provides this normalized `asPath` value in the context provided to `getServerSideProps` to provide the consistent value since the request URL can vary between direct visit and client transition and the alternative requires building the URL each time manually.
Kept this change separate from https://github.com/vercel/next.js/pull/17081 since this is addressing a separate issue and allows discussion separately.
Closes: https://github.com/vercel/next.js/issues/16407
This normalizes the `asPath` for `getServerSideProps` and `getStaticProps` pages to ensure it matches the value that would show on the client instead of a) the output pathname when revalidating or generating a fallback or b) the `_next/data` URL on client transition.
Fixes: https://github.com/vercel/next.js/issues/16542
This uses the "Expand directories" feature introduces in Prettier 2.0 to automatically format all supported file types.
Also, I fixed some badly formatted files.
This makes sure we properly resolve a rewrite when only the `href` value is used. This was causing a full-reload and was missed in the existing test since we weren't making sure a full navigation didn't occur which has been added in this PR.
Fixes: https://github.com/vercel/next.js/issues/16974
Removes `next-head-count`, improving support for 3rd party libraries that insert or append new elements to `<head>`.
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This is more or less what a solution with a `data-` attribute would look like, except that instead of directly searching for elements with that attribute, we serialize the elements expected in `<head>` and then find them/assume ownership of them during initialization (in a manner similar to React's reconciliation) based on their properties.
There are two main assumptions here:
1. Content is served with compression, so duplicate serialization of e.g. inline script or style tags doesn't have a meaningful impact. Storing a hash would be a potential optimization.
2. 3rd party libraries primarily only insert new, unique elements to head. Libraries trying to actively manage elements that overlap with those that Next.js claims ownership of will still be unsupported.
The reason for this roundabout approach is that I'd really like to avoid `data-` if possible, for maximum compatibility. Implicitly adding an attribute could be a breaking change for some class of tools or crawlers and makes it otherwise impossible to insert raw HTML into `<head>`. Adding an unexpected attribute is why the original `class="next-head"` approach was problematic in the first place!
That said, while I don't expect this to be more problematic than `next-head-count` (anything that would break in this new model also should have broken in the old model), if that does end up being the case, it might make sense to just bite the bullet.
Fixes#11012Closes#16707
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cc @Timer @timneutkens
This makes sure to the page path is the expected version to trigger refreshing on the client and adds additional tests to make sure it is working properly with these page variants.
Closes: https://github.com/vercel/next.js/issues/16938
