I would like to suggest to enable the following headers by default for web apps (roundcube etc);
For example in nginx webapps_settings.conf.
The referrer policy.. For obvious reasons
Code:
X-XSS-Protection "1; mode=block"
X-Frame-Options SAMEORIGIN
X-Content-Type-Options: "nosniff"
Referrer-Policy to none
For example in nginx webapps_settings.conf.
The referrer policy.. For obvious reasons