lib/action_dispatch/middleware/templates/rescues/diagnostics.html.erb in actionpack-6.0.0.rc1 vs lib/action_dispatch/middleware/templates/rescues/diagnostics.html.erb in actionpack-6.0.0.rc2

@@ -1,8 +1,8 @@
 <header>
   <h1>
     <%= @exception.class.to_s %>
-    <% if @request.parameters['controller'] %>
+    <% if params_valid? && @request.parameters['controller'] %>
       in <%= @request.parameters['controller'].camelize %>Controller<% if @request.parameters['action'] %>#<%= @request.parameters['action'] %><% end %>
     <% end %>
   </h1>
 </header>