diff --git a/apps/git/index.tsx b/apps/git/index.tsx
index 076d971..54c958a 100644
--- a/apps/git/index.tsx
+++ b/apps/git/index.tsx
@@ -23,12 +23,15 @@ function toggleVisibility(btn) {
   var next = current === 'public' ? 'private' : 'public';
   btn.dataset.visibility = next;
   btn.textContent = next;
-  btn.className = btn.className.replace(' public', '');
-  if (next === 'public') btn.className += ' public';
+  btn.classList.toggle('public', next === 'public');
   fetch('/api/visibility/' + encodeURIComponent(repo), {
     method: 'POST',
     headers: { 'Content-Type': 'application/json' },
     body: JSON.stringify({ visibility: next })
+  }).catch(function() {
+    btn.dataset.visibility = current;
+    btn.textContent = current;
+    btn.classList.toggle('public', current === 'public');
   });
 }
 `