Hello there! I am trying to get the Web Push API to work with my app and Safari on iOS. I can register fine in Safari ... But, when trying to send my request to https://web.push.apple.com I receive Authentication failed because the remote party sent a TLS alert: 'HandshakeFailure'. Would anyone have experienced this? As I am not sure how to proceed. Code works with Google and MS fine, running in IIS 6.2 HTTP/1.1 using .net core 7.0.3, in Sussex UK Happy to supply more info on request, Ant