+// Copyright (C) The Arvados Authors. All rights reserved.
+//
+// SPDX-License-Identifier: AGPL-3.0
+
// Load tab panes on demand. See app/views/application/_content.html.erb
// Fire when a tab is selected/clicked.
var $pane = this;
var errhtml;
var contentType = jqxhr.getResponseHeader('Content-Type');
- if (contentType && contentType.match(/\btext\/html\b/)) {
+ if (jqxhr.readyState == 0 || jqxhr.status == 0) {
+ if ($pane.attr('data-loaded-at') > 0) {
+ // Stale content is already present. Leave it
+ // there while loading the next page.
+ $pane.removeClass('pane-loading');
+ $pane.addClass('pane-loaded');
+ // ...but schedule another refresh (after a
+ // throttle delay) in case the act of navigating
+ // away gets cancelled itself, leaving this page
+ // with content that we know is stale.
+ $pane.addClass('pane-stale');
+ $pane.attr('data-loaded-at', (new Date()).getTime());
+ $pane.trigger('arv:pane:reload');
+ return;
+ }
+ errhtml = "Cancelled.";
+ } else if (contentType && contentType.match(/\btext\/html\b/)) {
var $response = $(jqxhr.responseText);
var $wrapper = $('div#page-wrapper', $response);
if ($wrapper.length) {