onChanged 
  fun onChanged(connectFlags: <Error class: unknown class> = ConnectFlags(0u), handler: (oldPolicy: HstsPolicy, newPolicy: HstsPolicy) -> Unit): <Error class: unknown class>(source)
Emitted when @hsts_enforcer changes.
If a policy has been added,
Parameters
connectFlags 
a combination of ConnectFlags
handler
the Callback to connect. Params: oldPolicy the old #SoupHSTSPolicy value; newPolicy the new #SoupHSTSPolicy value