I think there might be something broken with your browser. It works perfectly fine for me.
Tbh when i analysed my recent magaera kill with zumzumzum's tool i was surprised that even though i only used havoc for immolate and two felflames more than 30k dps from my 150 was just empty dmg. I know that immolate dmg is undervaluated by many ppl but this is just insane.