mirror of
https://github.com/hanzoai/next.js.git
synced 2026-10-30 14:46:38 +00:00
Zack TannerandGitHub
5c9b06256a
### What When a page throws a `notFound()` error in `generateMetadata`, and the page contains parallel route(s), an unhandled runtime error would be thrown rather than displaying the not found page. ### Why We use the `<MetadataOutlet />` component to throw any errors caught during metadata resolution once the metadata is rendered by React so that it can be caught by an error boundary, so that it doesn't throw during metadata resolution. A promise is tracked & resolved with an error once the metadata tree is rendered. Once the promise resolves, the outlet component will throw. However, every `__PAGE__` segment that would be rendered as part of the page the user is on will render this `<MetadataOutlet />` component. We only need a single outlet per segment as only a single error needs to be thrown & caught. ### How This will only render a `MetadataOutlet` for the first parallel route that is encountered at each segment depth, as we only need a single handler to throw the error. Fixes #65013 Closes NEXT-3222