wildcards do not work for whitelist

[aisaev]

HI,

Great extension, using whitelist mode to prevent my son from wasting time during classes. Unfortunately, looks like whitelisting only works for FQDN in URL, so I have to do multiple unblocks when trying to add any new site. E.g., he needed access to smartmusic.com, but to get it completely working, I had to also add explicitly asm.smartmusic.com, auth.smartmusic.com, admin.smartmusic.com, etc. which was unwieldy.