Accounting over HTTPS

Hi,

In IP → Accounting → Web Access I have turned the “Accessible via Web” on. With it I can access accounting data just fine over HTTP(80) at http://routerip/accounting/ip.cgi. However, it seems equivalent URL (https://routerip/accounting/ip.cgi) over HTTPS(443) doesn’t work. Accessing normal configuration over HTTPS works just fine - it is just accounting data that presents the problem.

Is there anything additional that must be done to get accounting working over https?