Improve security of website by changing/adding HTTP headers returned by server

Projekt:Web
Komponente:Main
Kategorie:Leistungsmerkmalanfrage
Priorität:critical
Zugewiesen:nicht zugewiesen
Status:active
Beschreibung

See: https://securityheaders.io/?q=https%3A%2F%2Ftrisquel.info&followRedirects=on

This issue wasn't reported by me, studio found it (https://listas.trisquel.info/pipermail/trisquel-users/2018-January/085580.html).