Merge pull request #5517 from nickgros/SWC-6940

src/main/java/org/sagebionetworks/web/client/PortalGinModule.java

@@ -393,7 +393,7 @@ protected void configure() {
     bind(FileHandleUploadWidget.class).to(FileHandleUploadWidgetImpl.class);
 
     // LocationableUploader
-    bind(UploaderView.class).to(UploaderViewImpl.class);
+    bind(UploaderView.class).to(UploaderViewImpl.class).in(Singleton.class);
     bind(QuizInfoWidgetView.class).to(QuizInfoViewImpl.class);
 
     // EntityTreeBrowser