Update ERRATA.md

Document the erroneous use of `altitude` with domain `Object`, and the incorrect exclusion of `attributedTo` in the list of properties of a `Link`.
w3c · May 10, 2023 · d5ce002 · d5ce002
1 parent 54a6723
commit d5ce002
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/ERRATA.md b/ERRATA.md
@@ -76,3 +76,7 @@ This document includes errata for the [Activity Streams](https://www.w3.org/TR/a
       "name": "Joe"
     }
     ```
+
+  - Unlike `latitude` and `longitude`, the domain of the `altitude` term is the `Object` type. The `altitude` term should be included in the list of properties of an `Object`. Because `altitude` is primarily documented as a property of a `Place`, publishers should not include `altitude` on objects that are not of type `Place`, and consumers should accept objects with this property that aren't of type `Place`.
+
+  - The domain of the `attributedTo` property is both `Link` and `Object`. `attributedTo` should be included in the list of properties of a `Link`.