Embeds a critical CSS file into a page's HTML head, and loads the rest of non-critical CSS asynchronously. INTRODUCTION This module looks for a css file inside your theme directory. This css filename should match any of: bundle type (i.e., "article.css") entity id (i.e., "123.css") url (i.e., "my-article.css") If none of the previous filenames can be found, this module will search for a file named "default-critical.css". A hook is provided ("critical_css_file_paths_suggestion") in case another filename is needed.

Problem/Motivation In D7, a manual created menu link pointing to "user/login" only showed up if I'm not already logged in. In D8, the link shows up no matter whether I'm already logged in or not. Guess that has something to do with the new routing system. Steps to replicate this issue: - Goto: /admin/structure/menu/manage/main - Add a menu link "Login" to the path "user/login" - Go to the home page, , whilst logged in, you should have 2 links "Home" and "Login" On Drupal 7 you wouldn't see this link.