Fix missing forward slash in Actor id

This was making Mastodon fail to recognise the response (due possibly
due to the mismatch with the href in the WebFinger response).

src/app.js

@@ -18,7 +18,7 @@ const channels = require('./channels')
 const app = express(feathers())
 
 // Hardcoded LocalTunnel URL for testing federation.
-const localDomain = 'iiuoizjrsz.localtunnel.me'
+const localDomain = 'avgrtijmup.localtunnel.me'
 
 // Load app configuration
 app.configure(configuration())
@@ -31,19 +31,19 @@ app.use(express.urlencoded({ extended: true }))
 app.use(favicon(path.join(app.get('public'), 'favicon.ico')))
 
 app.use('/.well-known/webfinger', function (req, res, next) {
-  console.log('Web finger triggered.')
-  console.log(req.query)
+  console.log(`WebFinger request received for resource: ${req.query.resource}`)
 
   res.set('Content-Type', 'application/jrd+json; charset=utf-8')
-  res.send(JSON.parse(`{
-      "subject": "person@${localDomain}",
-      "links": [{
-        "rel": "self",
-        "type": "application/ld+json; profile='https://www.w3.org/ns/activitystreams'",
-        "href": "https://${localDomain}/"
-      }]
-    }`)
-  )
+  const response = JSON.parse(`{
+    "subject": "acct:person@${localDomain}",
+    "links": [{
+      "rel": "self",
+      "type": "application/ld+json; profile='https://www.w3.org/ns/activitystreams'",
+      "href": "https://${localDomain}/"
+    }]
+  }`)
+  console.log(response)
+  res.send(response)
 })
 
 app.use('/inbox', function (req, res, next) {
@@ -91,7 +91,7 @@ app.use('/', function (req, res, next) {
           }
         ],
         "type": "Person",
-        "id": "https://${localDomain}",
+        "id": "https://${localDomain}/",
         "following": "https://${localDomain}/following",
         "followers": "https://${localDomain}/followers",
         "inbox": "https://${localDomain}/inbox",