api.SyncManager - Background Synchronization APIs should be marked non-standard

MDN URL

https://developer.mozilla.org/en-US/docs/Web/API/SyncManager

What specific section or headline is this issue about?

All

What information was incorrect, unhelpful, or incomplete?

I've recently created PWAscore, and I've gotten very strong feedback that SyncManager and other Background Synchronization APIs should be marked as "Experimental".

What did you expect to see?

I'd expect that SyncManager and other Background Synchronization APIs should be marked as "Experimental" both on the site and in the supporting data.

Do you have any supporting links, references, or citations?

As evidence, https://wicg.github.io/background-sync/spec/ is watermarked "UNOFFICIAL DRAFT" and explicitly states, "It is not a W3C Standard nor is it on the W3C Standards Track". Mozilla (https://mozilla.github.io/standards-positions/#background-sync) and Apple (https://github.com/WebKit/standards-positions/issues/14) have also expressed concerns, and (AFAIK) neither has committed to support it.

Do you have anything more you want to share?

No response

MDN metadata

Start with the SyncManager entry referenced in the issue and review the linked Background Sync specification and standards-position references. Check how the API’s status is represented in the supporting compatibility data and verify the MDN page at en-us/web/api/syncmanager; done means the requested status is consistently reflected in both places.