Sets policy to this.
If policy is expired, any existing HSTS policy for its host will be removed instead. If a policy existed for this host, it
will be replaced. Otherwise, the new policy will be inserted. If the policy is a session policy, that is, one created with [
[email protected]_session_policy], the policy will not expire and will be enforced during the lifetime of
this's [class@Session].
| this | |
| policy |
the policy of the HSTS host |