This makes sure we don't incorrectly strip locale characters from the path if it is not a locale prefix e.g. `/fr` should not be removed from `/frank`. Additional tests have been added to ensure this isn't stripped for this case.
Fixes: https://github.com/vercel/next.js/issues/18332
When visiting a non-locale prefixed path (`/hello` instead of `/fr/hello`) we don't trigger locale redirects currently so if another locale is matched we need to ensure this is reset to the `defaultLocale` for rendering to prevent a mis-match on the client and the server.
This also fixes hydration errors from occurring with `asPath` for `getServerSideProps` pages due to `normalizeLocalePath` expecting only a pathname and `asPath` containing `hash` and `query values also.
Fixes: https://github.com/vercel/next.js/issues/18337
Fixes: https://github.com/vercel/next.js/issues/18510
This adds support for passing `statusCode` in a `redirect` from `getServerSideProps` or `getStaticProps` which matches the `redirect` shape allowed to be returned for `redirects` in `next.config.js`
Closes: https://github.com/vercel/next.js/issues/18350
Older versions of Safari (and other browsers) do not support webp format so we were incorrectly falling back to png.
This PR fixes#18509 so that we fallback to the original image format if a modern format like webp was not explicitly provided in the Accept header.
Tests were added to ensure that the Accept header for Safari, Firefox, and Chrome work properly.
This makes sure custom-routes function properly with i18n support. Since the `locale` is stripped from the `pathname` this re-adds when checking custom-routes to allow the locale to be matched against
Closes: https://github.com/vercel/next.js/issues/18349
* Add err.sh for image config errors
* Apply suggestions from code review
Co-authored-by: Steven <steven@ceriously.com>
Co-authored-by: Steven <steven@ceriously.com>
This does two things:
- Rename `iconSizes` to `imageSizes`.
- Give priority to `imageSizes` regardless of `deviceSizes` as a means to opt-out of the srcset behavior.
* Fix test without expect for redirects from getStaticProps/getServerSideProps
* Fix browser back issue of redirects from getServerSideProps / getStaticProps
This separates the `next.config.js` property `images.sizes` into to properties: `images.deviceSizes` and `images.iconSizes`.
The purpose is for images that are not intended to take up the majority of the viewport.
Related to #18122
This adds checks to ensure that less than 50 domain and size items are configured and no sizes are less than 0 or greater than 10,000
x-ref: https://github.com/vercel/next.js/issues/18122
Co-authored-by: Steven <steven@ceriously.com>
We currently always accept requests to the new `/_next/image` endpoint, even when it should not be used.
Instead, we should check to see if the default loader is used as a signal to enable this API.
Other loaders (such as cloudinary) will not go through the Next.js API so there is no need to expose this, instead we 404.
- Analogous to https://github.com/vercel/vercel/pull/5321
- Related to #18122
Previously, vector images like svg were being converted to webp and resized.
However, vector images already handle any size so we can bypass the same we do for animated images.
Related to #18122
The `w` parameter in the Image Optimization API is the requested size of the image and should only be resized if the source image is larger than the requested size. This PR fixes the behavior to prevent accidental upscaling, for example icon images.
This updates the fallback 404 handling to render the correct 404 page on the client when a 404 is returned from fetching the data route on a fallback page on the client. This prevents us from having to rely on a cache to be updated by the time we reload the page to prevent non-stop reloading.
This also adds handling in serverless mode to ensure the correct 404 page is rendered when leveraging fallback: 'blocking' mode.
Additional tests for the fallback: 'blocking' 404 handling will be added in a follow-up where returning notFound from `getServerSideProps` is also added.
This makes sure the `locales` are passed to `getStaticPaths` and also disables the removing the default locale from the path when the default locale is the preferred header. It also updates tests to ensure the domain redirects are working as expected.
x-ref: https://github.com/vercel/next.js/pull/17370
This makes sure that we detect the correct default locale for domain specific locales since a domain can have a different default locale residing at the root and we need to check this on the client for prerendered/auto-static pages. This also makes sure we disable the built-in redirect handling when on Vercel since it's handled already.
Tests for this are tricky since we need to load the browser with a custom domain which requires editing the host file. Existing tests should ensure this doesn't break non-domain specific locale behavior though. This was also tested manually while testing https://github.com/vercel/vercel/pull/5298
x-ref: https://github.com/vercel/next.js/pull/17370
This updates the new image optimizer endpoint to instead of relying on the `host` and `proto` headers for relative files to use the internal route handling in `next-server` to load files from the public directory. The existing tests for relative files with the endpoint should cover these changes
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 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
