Merge pull request #8737 from tricknotes/info-page-style

Fix info page style [ci skip]

railties/lib/rails/info_controller.rb

@@ -3,7 +3,7 @@
 class Rails::InfoController < ActionController::Base # :nodoc:
   self.view_paths = File.expand_path('../templates', __FILE__)
   prepend_view_path ActionDispatch::DebugExceptions::RESCUES_TEMPLATE_PATH
-  layout 'application'
+  layout -> { request.xhr? ? nil : 'application' }
 
   before_filter :require_local!
 

railties/lib/rails/templates/rails/welcome/index.html.erb

@@ -174,8 +174,9 @@
     <script>
       function about() {
         var info = document.getElementById('about-content'),
-             xhr = new XMLHttpRequest();
-        xhr.open("GET","rails/info/properties",false);
+            xhr = new XMLHttpRequest();
+        xhr.open("GET", "rails/info/properties", false);
+        xhr.setRequestHeader("X-Requested-With", "XMLHttpRequest");
         xhr.send("");
         info.innerHTML = xhr.responseText;
         info.style.display = 'block'