Ensures message is sent w/ sync-done & error events

Author: DougReeder

src/dropbox.ts

@@ -1110,7 +1110,7 @@ function hookSync(rs, ...args): void {
     return this.dropbox.fetchDelta(rs, ...args).
       then(rs._dropboxOrigSync, function (err) {
         rs._emit('error', new SyncError(err));
-        rs._emit('sync-done');
+        rs._emit('sync-done', { completed: false });
       });
   }.bind(rs);
 }

src/indexeddb.ts

@@ -399,8 +399,8 @@ class IndexedDB extends CachingLayer {
         } else {
           DEFAULT_DB = db;
           // TODO Use specific type
-          (db as any).onerror = () => {
-            remoteStorage._emit('error', err);
+          (db as any).onerror = evt => {
+            remoteStorage._emit('error', new Error(`database error: ${evt?.type}`));
           };
           resolve();
         }