The administrator menu disappeared I added the following code in my .htaccess file :

&lt;IfModule mod_headers.c&gt;
  Header set Set-Cookie HttpOnly;Secure
  Header always set X-XSS-Protection "1; mode=block"
  Header always set X-Content-Type-Options "nosniff"
  Header always set X-Frame-Options "DENY"
  Header set Content-Security-Policy "script-src 'self' https://apis.google.com"
  Header always set Strict-Transport-Security "max-age=15768000; includeSubDomains; preload"
&lt;/IfModule&gt;


and the Administrator menu drupal no longer appear on my site. When I delete this line, the menu reappears. How to solve this problem ?

Header set Content-Security-Policy "script-src 'self' https://apis.google.com"
Check with the styles/css hiding the administrator menu.
style-src is script-src’s counterpart for stylesheets.