title: Can I enable just Spring Session header authentication?
body: <p>For the time being I see no reason to add Redis but all Spring Session examples include it. I want to design with the idea in mind that I might add it later. The thing I want right now is Header Authentication.</p>
  
  <p>How can I enable the Header Authentication without enabling Redis?</p>
  
  <p>(a spring boot single file application as example would be nice)</p>