Disable cache during development: Templates are not discovered I have followed all steps reported on https://www.drupal.org/node/2598914. However, if I create an new template file in my theme folder, it does not get discovered until I flush the cache manually via drush cr.

Is rebuilding the cache a must to discover new templates, or can I optimize the developer settings to auto-discover templates during development?
try add this in .htaccess  (drupal root)

    &lt;IfModule mod_headers.c&gt;
       //ADD THIS 
        Header set Cache-Control "no-cache, no-store, must-revalidate"
        Header set Pragma "no-cache"
        Header set Expires 0
    &lt;/IfModule&gt;