In SharePoint 2010 and earlier, it seems it was possible to share the authentication token with other ASP.Net applications using forms authentication and the ASPXAuth cookie.
I have a SharePoint 2013 Web Application using Forms Authentication and SQL Membership Provider. I also have an ASP.Net MVC Web Api application using the same SQL Membership provider for authentication.
With SharePoint 2013 now using claims authentication and the FEDAuth cookie, is it possible to share authentication? I wish to call into the web service using JQuery Ajax calls passing the credentials (FEDAuth cookie) with the XHR and have it authenticate without prompting the user for credentials.
Both SharePoint and the web service are hosted on the same domain, although if possible I'd like to have the web service on a subdomain of the SharePoint domain.