By Chloe Stewart Meghan Markle and Prince Harry reportedly learned of Kate Middleton’s cancer diagnosis on television. The former senior royals, who are said to have since had a private conversation with the Princess of Wales, reportedly were not informed of Kate’s health news ahead of her video address. Harry and Meghan, who have a famously estranged relationship with Prince William and Princess Kate, are reported to have learned about Kate’s health “at the same time as the public”. “Several sources confirm that there were no such conversations and it is thought Harry found out about Kate’s d…