Integrate Discourse Connect (SSO)

app/views/devise/sessions/new.html.erb

@@ -1,7 +1,13 @@
+<%
+  # TODO remove when https://github.com/hotwired/turbo/issues/203 is fixed
+  enable_turbo = !session[:user_return_to].match?('/discourse/connect')
+%>
+
 <%= render HeaderCompactComponent.new(title: "Log in") %>
 
 <%= render MainCompactComponent.new do %>
-  <%= form_for(resource, as: resource_name, url: session_path(resource_name)) do |f| %>
+  <%= form_for(resource, as: resource_name, url: session_path(resource_name),
+                         data: { turbo: enable_turbo.to_s }) do |f| %>
     <%= render "devise/shared/error_messages", resource: resource %>
     <div class="mb-6">
       <%= f.label :cn, 'User', class: 'block mb-2 font-bold' %>