vSRX Web Filtering not working???

Dear members;

i have a very strange issue on vSRX 12.1X47-D20.7...

i have configured web-filtering (local) on the vSRX as follows:

custom-objects {
url-pattern {
whitelist {
value [ https://www.juniper.nethttps://www.ine.com ];
}
blacklist {
value [ https://www.facebook.comhttps://www.twitter.com ];
}
}
custom-url-category {
allowed-category {
value whitelist;
}
blocked-category {
value blacklist;
}
}
}
feature-profile {
web-filtering {
url-whitelist allowed-category;
url-blacklist blocked-category;
juniper-local {
profile Internet-profile-local {
default block;
}
}
}
}
utm-policy Internet-policy-local {
web-filtering {
http-profile Internet-profile-local;
}
}

But even after this simple configuration, the output for the below command is:

admin@SRX-UTM> show security utm web-filtering status
UTM web-filtering status:
Server status: no-config

i have absolutely no idea why it is showing no-config...even with Trial License (dns-server etc etc.) configured....

Please can anyone help with this issue?   

Regards.