We have received external reports of Phishing attempts using this url redirect functionality, these are now being rejected.
Visit https://github.com/janhebnes/startlist.club/issues/245
Invalid redirect was attempted with https://startlist.club/Account/Login?returnUrl=%2FFlight%2FDetails%2F219f3ccd-5f7b-4fcf-8cb6-b2bb017d5b4b