I've setup fedauth in Sitecore 9 for my site which is working as expected for a single site. However I'm having a multisite solution and each site needs it's own login page. The login page is specified in the NoAccessUrl setting, which is set in Sitecore.Owin.Authentication.Enabler.config. This is using Sitecore 9 update 1 using wsFed.
Is it possible to have a different NoAccessUrl per site?