diff --git a/public/javascripts/fipr.js b/public/javascripts/fipr.js
index c38df28b4a..c001705450 100644
--- a/public/javascripts/fipr.js
+++ b/public/javascripts/fipr.js
@@ -9,7 +9,12 @@ window.lichess.load.then(() => {
       storage.set(hash);
       const $i = $('#signup-fp-input');
       if ($i.length) $i.val(hash);
-      else $.post('/auth/set-fp/' + hash + '/' + Math.round(performance.now() - t));
+      else fetch(
+        '/auth/set-fp/' + hash + '/' + Math.round(performance.now() - t), {
+          method: 'post',
+          credentials: 'same-origin',
+        }
+      );
     };
     if (storage.get()) send(storage.get());
     else fipr.get(c => send(fipr.x64hash128(c.map(x => x.value).join(''), 31)));
diff --git a/public/javascripts/insight-refresh.js b/public/javascripts/insight-refresh.js
index cb2fd1b0b8..2a3081e870 100644
--- a/public/javascripts/insight-refresh.js
+++ b/public/javascripts/insight-refresh.js
@@ -1,10 +1,12 @@
-$(function() {
+window.lichess.load.then(() => {
   lichess.refreshInsightForm = function() {
     $('form.insight-refresh:not(.armed)').addClass('armed').submit(function() {
-      lichess.modal($(this).find('.crunching'));
-      $.post($(this).attr('action'), function() {
-        lichess.reload();
-      });
+      fetch(this.action, {
+        method: 'post',
+        credentials: 'same-origin',
+      }).then(lichess.reload);
+      if (lichess.modal) lichess.modal($(this).find('.crunching'));
+      else $(this).replaceWith($(this).find('.crunching').show());
       return false;
     });
   };