I\'m trying to authenticate my SPA (angular.js and adal.js (similar to the https://github.com/Azure-Samples/active-directory-angularjs-singlepageapp-dotnet-webapi example)
Looks like an AzureAD B2C scenario sample code for SPA was just released on github. See it here.
"The sample shows how to build a web application using Hello.js that performs identity management with Azure AD B2C. The app is a simple web application that performs sign-in, sign-up, and sign-out functions with sign-in and signIn-signUp policies and also edit profile using EditProfile Policy."
NOTE: At the time of this answer the functionality is still in "preview"