From 79648c58d0e59728a440e7fa70a1a4653f1a29ab Mon Sep 17 00:00:00 2001
From: Mitsuhiro Shibuya <mit.shibuya@gmail.com>
Date: Sun, 6 Oct 2024 18:32:59 +0900
Subject: [PATCH] Disable Turbo's prefetch, which became the default in
 turbo-rails 2.x

---
 app/views/layouts/rails_admin/_head.html.erb | 1 +
 spec/integration/rails_admin_spec.rb         | 7 +++++++
 2 files changed, 8 insertions(+)

diff --git a/app/views/layouts/rails_admin/_head.html.erb b/app/views/layouts/rails_admin/_head.html.erb
index d78e4366f..43ce0096d 100644
--- a/app/views/layouts/rails_admin/_head.html.erb
+++ b/app/views/layouts/rails_admin/_head.html.erb
@@ -2,6 +2,7 @@
 <meta content="text/html; charset=utf-8" http-equiv="Content-Type">
 <meta content="width=device-width, initial-scale=1" name="viewport; charset=utf-8">
 <meta content="NONE,NOARCHIVE" name="robots">
+<meta content="false" name="turbo-prefetch">
 <%= csrf_meta_tag %>
 <% case RailsAdmin::config.asset_source
    when :webpacker %>
diff --git a/spec/integration/rails_admin_spec.rb b/spec/integration/rails_admin_spec.rb
index 8040dcc82..26bb603f6 100644
--- a/spec/integration/rails_admin_spec.rb
+++ b/spec/integration/rails_admin_spec.rb
@@ -204,6 +204,13 @@
       is_expected.to have_content 'Player failed to be updated'
       is_expected.to have_css '.filtering-select[data-input-for="player_team_id"]'
     end
+
+    it 'does not prefetch pages' do
+      allow_any_instance_of(RailsAdmin::Config::Actions::Index).to receive(:controller).and_raise('index prefetched')
+      visit dashboard_path
+      find('.sidebar a.nav-link[href$="/player"]').hover
+      sleep 0.3 # Turbo waits 100ms before prefetch
+    end
   end
 
   describe 'dom_ready events', js: true do