When chart is hosted with cloud.highchats.com there is a link 'Highcharts' appearing in bottom right corner. I tried to disable it with 'credits' settings as google suggested, but credits setting seems have no effect (i tried to change text, set 'enable' to false etc.) link appears anyway, e.g. see http://cloud.highcharts.com/embed/ixaqub
Is it possible to remove 'Highcharts' link?