Small improvements to manifest worker-based approach.

frontend/src/js/component/wb-collection-content.js

@@ -94,9 +94,12 @@ class WBCollectionContent extends Component {
         });
       }
 
-      prom_1 = prom_1.then(() => this.setState({
-        'mode': 'browsingReady'
-      }));
+      prom_1 = prom_1.then(() => {
+        this.setState({
+          'mode': 'browsingReady'
+        });
+        this.prepareRows();
+      });
 
       return prom_1;
     });
@@ -122,6 +125,11 @@ class WBCollectionContent extends Component {
   }
 
   prepareRows(listing) {
+    if (listing)
+      this.state.listing = listing;
+    else
+      listing = this.state.listing;
+
     let { manifestReader, mode } = this.state;
     let { collectionPath, page, itemsPerPage } = this.props;
     let { arvHost, arvToken } = this.props.app.state;