Support detecting "Next" channel for Opera
Support detecting "Next" channel for Opera

NielsLeenheer/html5test,ya7lelkom/html5test,NielsLeenheer/html5test,chiefcll/html5test,chiefcll/html5test,mpopp75/html5test,NielsLeenheer/html5test,mpopp75/html5test,ya7lelkom/html5test,chiefcll/html5test,mpopp75/html5test,ya7lelkom/html5test