title: Preemptive Basic Auth with HttpUrlConnection?
body: <p>What is the best way to use preemptive basic http authentication using HttpUrlConnection. (Assume for now I can't use HttpClient).</p>
  
  <p>EDIT for clarification: I'm setting the un/pw correctly in the request header using Base64 encoding. Are there any additional flags or properties that need to be set, or is the fact that I'm setting the basic auth headers for the request all that is needed for preemptive basic auth?</p>