Eicar Test File HTTPS detection?

I tried testing Avast web shield against the Eicar test file; it picks up the regular HTTP url but not the HTTPS url. Is that normal? Well actually, it picked up the HTTPS url in IE, but not Firefox. Thanks.

Https is a secure connection … it would not be secure if your AV could scan it http://en.m.wikipedia.org/wiki/HTTP_Secure