Get tails.boum.org on major browsers' HSTS preload list

Originally created by @intrigeri on #8191 (Redmine)

http://tsyrklevich.net/2014/10/28/abusing-strict-transport-security/

Team: intrigeri, u

Subtasks

• sysadmin#8192 (closed)
• #9102 (closed)

Related issues

• Related to #9027 (closed)
• Blocks #10558 (closed)