Automatically Authenticating Users Against Multiple Sites

I currently have multiple sites connected via single sign on. There is one site used for browsing content, and multiple other sites used for storing the content.

There is a problem however, when trying to pull content from any of the content sites to the browsing site where, when the request attempts to authenticate against the content sites, nothing happens. the issue does not occur however if you log in to the content site first and then start browsing.

I was wondering if it would be possible to automatically attempt to authenticate a user against all of the sites that make up the application when they log in initially, and then redirect them back to where they were trying to go in the first place

Any help would be appreciated,
Thank you

There is a concept called silent authentication. I’m not sure if this is exactly what you are looking for, but it should be a good start.