api.MutationRecord.target - Gecko's MutationObserver.target is nullable, against spec

[def00111]

MDN URL

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

What specific section or headline is this issue about?

No response

What information was incorrect, unhelpful, or incomplete?

dom/webidl/MutationObserver.webidl states, that:

// .target is not nullable per the spec, but in order to prevent crashes,
// if there are GC/CC bugs in Gecko, we let the property to be null.

What did you expect to see?

Should the doc also have this information?

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

https://bugzilla.mozilla.org/show_bug.cgi?id=896272

Do you have anything more you want to share?

No response

MDN metadata

Page report details

• Folder: en-us/web/api/mutationrecord/target
• MDN URL: https://developer.mozilla.org/en-US/docs/Web/API/MutationRecord/target
• GitHub URL: https://github.com/mdn/content/blob/main/files/en-us/web/api/mutationrecord/target/index.md
• Last commit: mdn/content@ef75c17
• Document last modified: 2023-04-07T06:16:45.000Z

[wbamberg]

Thanks for filing!

Should the doc also have this information?

Yes, but it should be in browser compat.