Fix an interop issue of lookupObject()

CHANGES.md

@@ -80,6 +80,11 @@ To be released.
  -  Fixed a bug where the authenticated document loader had thrown `InvalidUrl`
     error when the URL redirection was involved in Bun.
 
+ -  Fixed a bug of `lookupObject()` that it had failed to look up the actor
+    object when WebFinger response had no links with
+    `"type": "application/activity+json"` but had `"type":
+    "application/ld+json; profile=\"https://www.w3.org/ns/activitystreams\""`.
+
 [@fedify/cli]: https://jsr.io/@fedify/cli
 [releases]: https://github.com/dahlia/fedify/releases
 [FEP-8fcf]: https://codeberg.org/fediverse/fep/src/branch/main/fep/8fcf/fep-8fcf.md

vocab/lookup.ts

@@ -81,7 +81,12 @@ export async function lookupObject(
     const jrd = await lookupWebFinger(identifier);
     if (jrd?.links == null) return null;
     for (const l of jrd.links) {
-      if (l.type !== "application/activity+json" || l.rel !== "self") continue;
+      if (
+        l.type !== "application/activity+json" &&
+          !l.type?.match(
+            /application\/ld\+json;\s*profile="https:\/\/www.w3.org\/ns\/activitystreams"/,
+          ) || l.rel !== "self"
+      ) continue;
       try {
         const remoteDoc = await documentLoader(l.href);
         document = remoteDoc.document;