{ $scheme }: wildcard sources in ‘{ $directive }’ directives must include at least one non-generic sub-domain (e.g., *.example.com rather than *.com)
{ $scheme }: wildcard na pinagmulan sa ‘{ $directive }’ na direktiba ay dapat may kalakip na hindi bababa sa isang non-generic na sub-domain (e.g., *.example.com sa halip na *.com)