title: Is it possible to configure PassportJS strategies on the requests?
body: <p>I'm building a multitenant application that manages requests for various different domains and each domain will have it's own set of authentications configured, so, for example, there would be several Facebook API ID and Secret pairs and not all know at start time.</p>
  <p>Is there a way, with PassportJS, to configure the strategy on the fly on each request?</p>