general: only apply accessible foldable support once (#38900)

2020-01-11 20:27:32 +01:00 · 2020-01-11 20:27:32 +01:00 · aa5099c771
parent fca2f06371
commit aa5099c771
1 changed files with 3 additions and 0 deletions
--- a/combo/public/static/js/combo.public.js
+++ b/combo/public/static/js/combo.public.js
@ -220,6 +220,9 @@ $(function() {
      return;
    }
    var $cell_title = $cell.find('> div > h2:first-child');
+    if ($cell_title.attr('aria-expanded') !== undefined) {  // already prepared
+      return;
+    }
    $cell_title.attr('tabindex', '0');
    $cell_title.attr('role', 'button');
    function set_aria_expanded() {