Support shortlink in generateMetadata

[Driesigner]

Goals

Add support for shortlink in the generateMetadata function.

Non-Goals

No response

Background

Using the generateMetadata function, we can add meta data to the head of the page. By adding an alternate.canonical to the metadata object, next will generate a <link rel="canonical" href="my.awesome.canonical" />. But for shortlink, this doesn't seem to be possible.

I'm working on a headless drupal project, in which the shortlink should be https://my.domain/node/node-id. The node is being fetched in the page component.

Proposal

I would suggest a new property shortlink in the Metadata alternatives object. This would ensure a similar workflow as the canonical link. It would lead to the generation of <link rel="shortlink" href="my.awesome.shortlink" />