X-Git-Url: https://git.arvados.org/arvados.git/blobdiff_plain/edf4ea276c364012127de71a29bad6bf23b1f5da..70ab42cb727b6a1bd1a8b26e2481de7caa0853d5:/apps/workbench/app/assets/javascripts/infinite_scroll.js

diff --git a/apps/workbench/app/assets/javascripts/infinite_scroll.js b/apps/workbench/app/assets/javascripts/infinite_scroll.js
index d7ad41abdd..81a3a4639b 100644
--- a/apps/workbench/app/assets/javascripts/infinite_scroll.js
+++ b/apps/workbench/app/assets/javascripts/infinite_scroll.js
@@ -245,8 +245,8 @@ $(document).
         // put it in the browser history state if browser allows it
         if( hasHTML5History() ) {
             var tabId = $(this).closest('div.tab-pane').attr('id');
-            var state =  history.state;
-            if( state.order === undefined) {
+            var state =  history.state || {};
+            if( state.order === undefined ) {
                 state.order = {};
             }
             state.order[tabId] = order;