问题
I use Azure AD B2C to authenticate users for my asp.net web application. I have a customized sign-up-sign-in policy with custom login page. Is it possible to store the username whenever the user gets redirected to the Azure custom login page ? Also is there a way to pass the username to the custom login page ?
来源：https://stackoverflow.com/questions/44680972/azure-ad-b2c-populate-username-in-custom-login-page